WO2019044383A1 - Electroplating liquid for iron-nickel alloy having low coefficient of thermal expansion, and electroplating method using the electroplating liquid - Google Patents
Electroplating liquid for iron-nickel alloy having low coefficient of thermal expansion, and electroplating method using the electroplating liquid Download PDFInfo
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- WO2019044383A1 WO2019044383A1 PCT/JP2018/029216 JP2018029216W WO2019044383A1 WO 2019044383 A1 WO2019044383 A1 WO 2019044383A1 JP 2018029216 W JP2018029216 W JP 2018029216W WO 2019044383 A1 WO2019044383 A1 WO 2019044383A1
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
- C25D3/562—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
Definitions
- the present invention relates to an electroplating solution for forming an iron-nickel alloy having a low thermal expansion coefficient and an electroplating method using the same.
- Iron-nickel alloys are known to have a low coefficient of thermal expansion and high hardness at a particular composition (invar composition). Since the iron-nickel alloy of this invar composition does not change in size with temperature, it is used for photomasks, bimetals, and the like.
- the iron-nickel alloy of such invar composition is usually a molten alloy, but it is obvious that the application can be expanded if the invar composition of iron-nickel alloy can be directly deposited by plating.
- the alloy phase is different between the iron-nickel alloy obtained by melting and the iron-nickel alloy obtained by plating, even if the iron-nickel alloy is obtained by plating, the composition is simply the same as the invar composition. And properties similar to those made by melting are not obtained.
- the iron-nickel alloy of the invar composition obtained by the plating as described above has problems such as poor gloss and no problem in ordinary use, but the performance can not be maintained in a wider temperature range.
- the present inventors have studied carboxylic acid compounds having a specific structure in electroplating solutions for iron-nickel alloys containing a conventionally known unsaturated sulfonic acid compound. It has been found that by electroplating with a plating solution containing two or more kinds, it is possible to obtain an iron-nickel alloy having glossiness, uniform composition, and low thermal expansion coefficient in a wide temperature range. It was completed.
- the present invention has the following general formula (1) (However, R is a vinyl group or ethynyl group, X is an optionally substituted alkylene group or phenylene group, and Y is an alkali metal.) And an electroplating solution for an iron-nickel alloy containing the unsaturated sulfonic acid compound represented by Furthermore, for an iron-nickel alloy having a low thermal expansion coefficient characterized by containing two or more kinds of carboxylic acid compounds having one or more carboxyl groups and two or more hydroxy groups and having two or more carbon atoms. It is an electroplating solution.
- the present invention is also a method of electroplating an iron-nickel alloy having a low thermal expansion coefficient, which comprises electroplating a material to be plated with the electroplating solution for an iron-nickel alloy having a low thermal expansion coefficient.
- the present invention is an iron-nickel alloy plated article having a low thermal expansion coefficient obtained by electroplating a material to be plated with the above-mentioned electroplating solution for iron-nickel alloy having a low thermal expansion coefficient.
- an iron-nickel alloy having a low thermal expansion coefficient in a wider temperature range than an iron-nickel alloy of invar composition obtained by melting can be obtained only by electroplating.
- the present invention can be expected to be applied to new applications such as power electronics, as well as being applicable to the same application as the iron-nickel alloy of invar composition manufactured by melting.
- the carboxylic acid compound having at least one is not particularly limited, and examples thereof include carboxylic acids such as gluconic acid, galactonic acid, mannonic acid, and tartaric acid, and alkali metal salts of the above carboxylic acids such as sodium tartrate and sodium gluconate. Be Among these carboxylic acid compounds, sodium tartrate and sodium gluconate are preferred.
- the hydroxyl group in a carboxyl group is not put into the number of a hydroxyl group. Therefore, malonic acid and malic acid are not included in the above-mentioned carboxylic acid compound. It is necessary to incorporate two or more, preferably two, of these carboxylic acid compounds in the plating solution of the present invention.
- the content of the carboxylic acid compound in the plating solution of the present invention is not particularly limited, it is, for example, 30 to 260 g / l, preferably 55 to 200 g / l, particularly preferably 80 to 160 g / l as a total of two types. It is.
- sodium gluconate is 20 to 180 g / l, preferably 40 to 140 g / l, particularly preferably 60 to 60 It is 120 g / l and sodium tartrate is 10 to 80 g / l, preferably 15 to 60 g / l, particularly preferably 20 to 40 g / l.
- the concentration ratio of sodium gluconate / sodium tartrate is 10 to 1.25, preferably 6.5 to 1.5, particularly preferably 5 to 2.5 in mass ratio.
- R is a vinyl group or an ethynyl group, preferably a vinyl group.
- X is an optionally substituted alkylene group or phenylene group, preferably an unsubstituted alkylene group or phenylene group, and more preferably an unsubstituted alkylene group.
- substituents examples include an alkyl group having 1 to 3 carbon atoms, a halogen, a hydroxyl group and the like, and an alkylene group having 1 to 10 carbon atoms, preferably 1 to 3 carbon atoms, more preferably 1 carbon atom
- Y is an alkali metal, preferably lithium, sodium, potassium, more preferably sodium.
- unsaturated sulfonic acid compounds include sodium allyl sulfonate, sodium vinyl sulfonate, sodium propyne sulfonate and the like, with preference given to sodium allyl sulfonate. These unsaturated sulfonic acid compounds may be used alone or in combination of two or more.
- the content of the unsaturated sulfonic acid compound in the plating solution of the present invention is 1 to 10% by mass (hereinafter simply referred to as "%"), preferably 4 to 8%.
- the electroplating solution for iron-nickel alloys which is the base of the plating solution of the present invention, is not particularly limited, and includes, for example, iron ion, nickel ion, complexing agents such as gluconic acid, and buffering agents such as boric acid and acetic acid. Conventionally known ones. More specific examples of electroplating solutions for iron-nickel alloys include chloride solution, sulfate solution, sulfate-chloride solution, cyan solution, citric acid solution, pyrophosphoric acid solution, watt solution, sulfamic acid solution, etc. Be Among these, watt liquid and sulfamic acid liquid are preferable.
- the plating solution of the present invention may further contain cobalt, molybdenum and tungsten in the above-mentioned electroplating solution for iron-nickel alloy.
- the amount of cobalt, molybdenum and tungsten added in this case is not particularly limited, and is, for example, 0.1 to 100 g / l, preferably 0.5 to 50 g / l.
- cobalt sulfate, cobalt sulfamate, sodium molybdate, sodium tungstate etc. are mentioned as a cobalt source.
- the above-mentioned electroplating solution for iron-nickel alloy is especially 5 to 20 g / l, preferably 7.5 to 17.5 g / l, particularly preferably 10 to 15 g / l of iron. It is preferable to use one containing 30 to 70 g / l, preferably 40 to 60 g / l of nickel.
- composition of a watt liquid and a sulfamic acid liquid is described as a preferable aspect of this invention plating liquid.
- Nickel sulfate hexahydrate 80 to 230 g / l, preferably 110 to 200 g / l Nickel chloride hexahydrate: 40 to 80 g / l, preferably 50 to 70 g / l Boric acid: 30 to 60 g / l Ferrous sulfate heptahydrate: 25 to 100 g / l, preferably 37.5 to 75 g / l Sodium gluconate: 20 to 180 g / l, preferably 40 to 140 g / l, particularly preferably 60 to 120 g / l Sodium tartrate dihydrate: 10 to 80 g / l, preferably 15 to 60 g / l, particularly preferably 20 to 40 g / l Sodium saccharinate: 1 to 5 g / l, preferably 2 to 4 g / l Sodium allyl sulfonate: 1.5 to 10 g / l, preferably 3.5 to
- Nickel sulfamate tetrahydrate 160 to 370 g / l, preferably 210 to 320 g / l Boric acid: 30 to 60 g / l Nickel bromide: 5 to 15 g / l, preferably 6 to 10 g / l Iron sulfamate pentahydrate: 30 to 125 g / l, preferably 45 to 95 g / l Sodium gluconate: 20 to 180 g / l, preferably 40 to 140 g / l, particularly preferably 60 to 120 g / l Sodium tartrate dihydrate: 10 to 80 g / l, preferably 15 to 60 g / l, particularly preferably 20 to 40 g / l Sodium saccharinate: 1 to 5 g / l, preferably 2 to 4 g / l Sodium allyl sulfonate: 1.5 to 10 g / l, preferably 3.5
- the method for electroplating the object to be plated using the plating solution of the present invention is not particularly limited.
- the object to be plated to pretreatment such as alkaline degreasing and acid activity, this is used as the plating solution of the present invention.
- the method of immersing etc. are mentioned.
- the conditions for electroplating are not particularly limited, and conditions for electroplating of ordinary iron-nickel alloys may be used.
- iron and nickel are used in combination at a liquid temperature of 20 to 60 ° C., and cathode current density 0 .5 to 3 A / dm 2 may be performed.
- the material to be plated which can be electroplated with the plating solution of the present invention is not particularly limited.
- the surface may be formed of a metal such as copper, nickel or stainless, a resin such as ABS or polyimide, etc. .
- the iron-nickel alloy plated product obtained by electroplating the object to be plated as described above has a low thermal expansion coefficient and high hardness.
- the ratio of iron and nickel is 55 to 70% of iron and 30 to 45% of nickel, preferably 56 to 64% of iron and 36 to 44% of nickel, where the total amount of both is 100%.
- the thermal expansion coefficient measured in the range of 25 to 400 ° C. is 4.5 ⁇ 10 ⁇ 6 / ° C. or less, preferably 4.0 ⁇ 10 ⁇ 6 / ° C. or less, particularly preferably 3.0 ⁇ 10 ⁇ 6 / ° C. or less, and 0.05 ⁇ 10 ⁇ 6 / ° C. or more.
- the thermal expansion coefficient is preferably measured, for example, under a nitrogen atmosphere.
- the iron-nickel alloy plated product having such properties has a uniform composition and a low coefficient of thermal expansion, and can be used as a metal mask, a wiring substrate in the field of power electronics, and the like.
- Example 1 Preparation of electroplating solutions for iron-nickel alloys: In water, 270 g / l of nickel sulfamate tetrahydrate, 30 g / l of boric acid, 7 g / l of nickel bromide, 87 g / l of iron sulfamate pentahydrate, 100 g / l of sodium gluconate, 25 g of sodium tartrate / L, saccharin sodium 3.2 g / l and sodium allyl sulfonate (36%) 16 ml / l were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 13.7 g / l, respectively.
- Example 2 Preparation of electroplating solutions for iron-nickel alloys: In water, 270 g / l nickel sulfamate tetrahydrate, 30 g / l boric acid, 7 g / l nickel bromide, 92 g / l iron sulfamate pentahydrate, 100 g / l sodium gluconate, 15 g sodium tartrate / L, saccharin sodium 3.2 g / l and sodium allyl sulfonate (36%) 16 ml / l were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 14.5 g / l, respectively.
- Example 3 Preparation of electroplating solutions for iron-nickel alloys: In water, 270 g / l of nickel sulfamate tetrahydrate, 30 g / l of boric acid, 7 g / l of nickel bromide, 87 g / l of iron sulfamate pentahydrate, 100 g / l of sodium gluconate, 60 g of sodium tartrate / L, saccharin sodium 3.2 g / l and sodium allyl sulfonate (36%) 16 ml / l were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 13.7 g / l, respectively.
- Comparative example 1 Preparation of electroplating solutions for iron-nickel alloys: In water, nickel sulfamate tetrahydrate 156 g / l, boric acid 30 g / l, nickel bromide 7 g / l, iron sulfamate pentahydrate 47 g / l, sodium gluconate 60 g / l, saccharin sodium 3. 2 g / l and 16 ml / l of sodium allyl sulfonate (36%) were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 30 g / l and 7.5 g / l, respectively.
- Comparative example 2 Preparation of electroplating solutions for iron-nickel alloys: In water, 270 g / l of nickel sulfamate tetrahydrate, 30 g / l of boric acid, 7 g / l of nickel bromide, 87 g / l of iron sulfamate pentahydrate, 100 g / l of sodium gluconate, malonic acid dihydrate Sodium 25 g / l, saccharin sodium 3.2 g / l and sodium allyl sulfonate (36%) 16 ml / l were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 13.7 g / l, respectively.
- Comparative example 3 Preparation of electroplating solutions for iron-nickel alloys: In water, 270 g / l nickel sulfamate tetrahydrate, 30 g / l boric acid, 7 g / l nickel bromide, 87 g / l iron sulfamate pentahydrate, 100 g / l sodium gluconate, sodium malate 15 g / l, saccharin sodium 3.2 g / l and sodium allyl sulfonate (36%) 16 ml / l were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 13.7 g / l, respectively.
- Example 4 Formation of iron-nickel alloy electroplating film: Electroplating was performed using the electroplating solution for iron-nickel alloys prepared in Examples 1 to 3 and Comparative Examples 1 to 3 by the following method.
- iron-nickel alloy electroplated film was obtained by immersing in an electroplating solution under the following conditions and electroplating with a target film thickness of 10 ⁇ m.
- the solution temperature was set to 40 ° C., and the stirring was changed to paddle stirring (6 m / min) to conduct electroplating.
- a nickel alloy electroplated film was obtained.
- Test example 1 Physical property measurement: The appearances of the plated films obtained in Examples 1 to 3 and Comparative Examples 1 to 3 were visually evaluated, and then the thermal expansion coefficient was measured in the range described in Table 1 in a nitrogen atmosphere, using a thermal, stress, and strain measuring device ( It was measured using SSI Nanotechnologies: TMA / SS 6100: load 50 mN: temperature rising rate 5 ° C./min). Further, the uniformity of the film composition was examined by XRF and evaluated by the following evaluation criteria. These results are shown in Table 1. Furthermore, when the mass ratio of iron-nickel in the film was determined by fluorescent X-ray analysis, the mass ratio of iron-nickel was all 64: 36 (rounded to the first decimal place). As a comparison, the same measurement was performed on a metallurgical Invar alloy (mass ratio of iron-nickel: 64:36).
- Example 5 Preparation of electroplating solutions for iron-nickel alloys: An electroplating solution for iron-nickel alloy was prepared in the same manner as in the electroplating solution for iron-nickel alloy of Example 1, except that the nickel sulfamate tetrahydrate was changed to 297 g / l.
- Example 6 Preparation of electroplating solutions for iron-nickel alloys: An electroplating solution for iron-nickel alloy was prepared in the same manner as in the electroplating solution for iron-nickel alloy of Example 1, except that the amount of nickel sulfamate tetrahydrate was set to 315 g / l.
- Example 7 Preparation of electroplating solutions for iron-nickel alloys: An electroplating solution for iron-nickel alloy was prepared in the same manner as in the electroplating solution for iron-nickel alloy of Example 1, except that the pH was adjusted to 3.4.
- Example 8 Preparation of electroplating solutions for iron-nickel alloys: An electroplating solution for iron-nickel alloy was prepared in the same manner as in the electroplating solution for iron-nickel alloy of Example 1, except that the pH was changed to 4.2.
- Example 9 Formation of iron-nickel alloy electroplating film: Electroplating was carried out in the same manner as in Example 5 using the electroplating solution for iron-nickel alloy prepared in Examples 5-8. In addition, using the electroplating solution for iron-nickel alloy prepared in Example 1, the solution temperature is 35 ° C. (Example 10), 55 ° C. (Example 11) or paddle agitation (6 m / min) (Example) Electroplating was carried out in the same manner as in Example 5 except that 12) was used. The iron-nickel mass ratio and the uniformity of the film composition were evaluated in the same manner as in Example 5. The results are shown in Table 2.
- Reference Example 1 Preparation of electroplating solutions for iron-nickel alloys: In water, 156 g / l of nickel sulfamate, 30 g / l of boric acid, 7 g / l of nickel bromide, 50 g / l of iron sulfamate, 60 g / l of sodium gluconate, 3.2 g / l of sodium saccharin and sodium allyl sulfonate (36 %) 16 ml / l was added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 30 g / l and 8 g / l, respectively.
- Reference example 2 Preparation of electroplating solutions for iron-nickel alloys: In water, 75 g / l of nickel sulfate, 55 g / l of nickel chloride, 40 g / l of boric acid, 40 g / l of ferrous sulfate, 60 g / l of sodium gluconate, 3.2 g / l of sodium saccharin and sodium allyl sulfonate (36% 16 ml / l was added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.0, and the contents of nickel and iron were 30 g / l and 8 g / l, respectively.
- Reference example 3 Formation of iron-nickel alloy electroplating film: Alkali degreasing (40 ° C., 10 minutes) and acid activity (room temperature, 30 seconds) were applied to a polyimide substrate (10 ⁇ 40 mm), and then the electroplating solution for iron-nickel alloy prepared in Reference Example 1 was as follows. The steel plate was immersed under the following conditions and electroplated at a target film thickness of 10 ⁇ m to obtain an iron-nickel alloy electroplated film.
- Reference example 4 Formation of iron-nickel alloy electroplating film: Electroplating was performed in the same manner as in Reference Example 3 except that the temperature was set to 40 ° C., to obtain an iron-nickel alloy electroplated film.
- Reference example 5 Formation of iron-nickel alloy electroplating film: Electroplating was carried out in the same manner as in Reference Example 3 except that the stirring was 6 m / min and the temperature was 40 ° C., to obtain an iron-nickel alloy electroplated film.
- Reference example 6 Formation of iron-nickel alloy electroplating film: Using the electroplating solution for iron-nickel alloy prepared in Reference Example 2, electroplating was performed in the same manner as in Reference Example 3 except that the temperature was set to 40 ° C., to obtain an iron-nickel alloy electroplating film.
- Reference Test Example 1 Physical property measurement: The appearance of the plated film obtained in Reference Examples 3 to 6 was visually evaluated, and then a stress, a micrometer ((a stock was made using a spiral stress meter (a spiral plating stress meter made by Yamamoto Plating Tester)). Hardness was measured using a micro Vickers hardness tester (manufactured by Akashi MFG. Co., Ltd .: load: 0.25 N) with Mitutoyo Corporation). In addition, using a thermal stress and strain measuring device (made by SII Nano Technology: TMA / SS 6100: load 50 mN: heating rate 5 ° C./min) at a thermal expansion coefficient of 25 to 200 ° C. in a nitrogen atmosphere. Measured. Furthermore, the mass ratio of iron-nickel in the film was determined by X-ray fluorescence analysis. The results are shown in Table 3.
- Reference Comparison Example 1 Comparison plating: An electroplating solution for iron-nickel alloy was prepared in the same manner as in Reference Example 2 except that sodium allyl sulfonate (36%) was not contained, and using this, electroplating of iron-nickel alloy was performed under the same conditions as in Reference Example 6. I got a film. The appearance of the film was not uniform. The mass ratio of iron-nickel in the film and the thermal expansion coefficient (/ ° C.) were measured in the same manner as in Test Example 1 for the obtained film. As a result, the mass ratio of iron-nickel was 64% of iron and 36% of nickel, and the thermal expansion coefficient (/ ° C.) at 25 to 200 ° C. was 8.6 ⁇ 10 ⁇ 6 / ° C.
- Reference example 7 Formation of iron-nickel alloy electroplating film: An electroplating solution for an iron-nickel alloy was prepared in the same manner as in Reference Example 2 except that sodium allyl sulfonate (36%) was changed to vinyl sulfonic acid, and using this, iron-nickel under the same conditions as in Reference Example 6. An alloy electroplated film was obtained. A uniform film appearance was obtained, and the iron-nickel mass ratio was 55% iron and 45% nickel. The coating has a low coefficient of thermal expansion and high hardness.
- Reference Example 8 Formation of iron-nickel alloy electroplating film: An electroplating solution for an iron-nickel alloy was prepared in the same manner as in Reference Example 2 except that sodium allyl sulfonate (36%) was used as propyne sulfonic acid, and iron was used under the same conditions as in Reference Example 6 using this. A nickel alloy electroplated film was obtained. The iron-nickel mass ratio of the obtained film was 62% iron and 38% nickel. The coating has a low coefficient of thermal expansion and high hardness.
- Reference Example 10 Formation of iron-nickel alloy electroplating film: After performing alkaline degreasing (55 ° C., 10 minutes) and acid activity (room temperature, 30 seconds) on a copper plate (60 ⁇ 80 mm), the electroplating solution for iron-nickel alloy prepared in Reference Example 9 is prepared under the following conditions It was immersed and electroplated to a target film thickness of 10 ⁇ m to obtain an iron-nickel alloy electroplated film.
- Reference example 12 Formation of iron-nickel alloy electroplating film: After performing alkaline degreasing (55 ° C., 10 minutes) and acid activity (room temperature, 30 seconds) on a copper plate (60 ⁇ 80 mm), the electroplating solution for iron-nickel alloy prepared in Reference Example 9 is prepared under the following conditions It was immersed and electroplated to a target film thickness of 10 ⁇ m to obtain an iron-nickel alloy electroplated film.
- Reference test example 2 Physical property measurement: The appearances of the plated films obtained in Reference Examples 9 and 11 were visually evaluated, and then the thermal expansion coefficient was measured in a nitrogen atmosphere in the range described in Table 4 using a thermal, stress, and strain measuring device (manufactured by SII Nano Technology) : TMA / SS 6100: Load 50 mN: Temperature rise rate was measured using 5 ° C./min). Also, the uniformity of the film composition was examined by XRF and evaluated by the same evaluation criteria as before. These results are shown in Table 4.
- the present invention is expected to be applicable to new applications such as power electronics, as well as to be used for the same applications as the iron-nickel alloy of invar composition manufactured by melting. that's all
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Abstract
Provided are: an electroplating liquid for an iron-nickel alloy having low coefficient of thermal expansion, the electroplating liquid containing an unsaturated sulfonic acid compound represented by general formula (1): R-X-SO3Y (here, R denotes a vinyl group or an ethynyl group, X denotes an optionally substituted alkylene group or phenylene group, and Y denotes an alkali metal) and being characterized by further containing two or more carboxylic acid compounds, each of which has two or more carbon atoms, one or more carboxyl groups and two or more hydroxyl groups; and a method for obtaining an iron-nickel alloy having a wide temperature range and excellent performance by means of plating using an electroplating method that uses the electroplating liquid.
Description
本発明は、低熱膨張係数を有する鉄－ニッケル合金を形成させるための電気メッキ液およびこれを用いた電気メッキ方法に関する。
The present invention relates to an electroplating solution for forming an iron-nickel alloy having a low thermal expansion coefficient and an electroplating method using the same.
鉄－ニッケル合金は、特定の組成（インバー組成）になると低熱膨張係数および高硬度となることが知られている。このインバー組成の鉄－ニッケル合金は温度によって寸法が変化しないため、フォトマスク、バイメタル等に利用されている。
Iron-nickel alloys are known to have a low coefficient of thermal expansion and high hardness at a particular composition (invar composition). Since the iron-nickel alloy of this invar composition does not change in size with temperature, it is used for photomasks, bimetals, and the like.
このようなインバー組成の鉄－ニッケル合金は、通常溶製合金であるが、メッキによりインバー組成の鉄－ニッケル合金を直接析出させることができれば、用途が広がることは明らかである。
The iron-nickel alloy of such invar composition is usually a molten alloy, but it is obvious that the application can be expanded if the invar composition of iron-nickel alloy can be directly deposited by plating.
しかしながら、溶製で得られる鉄－ニッケル合金と、メッキで得られる鉄－ニッケル合金とは合金相が異なるため、単純にインバー組成と同じ組成になるような鉄－ニッケル合金をメッキで得ても、溶製のものと同様の性質は得られない。
However, since the alloy phase is different between the iron-nickel alloy obtained by melting and the iron-nickel alloy obtained by plating, even if the iron-nickel alloy is obtained by plating, the composition is simply the same as the invar composition. And properties similar to those made by melting are not obtained.
これまでメッキでインバー組成と同様の性質の鉄－ニッケル合金を析出させる技術としては、ニッケル塩、第一鉄塩、錯化剤および緩衝剤を含む水溶液中に平均粒径３μｍ以下の微粒子を分散させた鉄－ニッケル合金メッキ液で電気メッキを行った後、４００℃以上の熱処理を行う方法が報告されている（特許文献１、非特許文献１）。この技術により低熱膨張係数および高硬度を有する鉄－ニッケル合金が得られている。
Until now, as a technology to deposit an iron-nickel alloy with the same properties as the invar composition by plating, fine particles with an average particle diameter of 3 μm or less are dispersed in an aqueous solution containing nickel salt, ferrous salt, complexing agent and buffer. A method has been reported in which a heat treatment at 400 ° C. or higher is performed after electroplating using a plated iron-nickel alloy plating solution (Patent Document 1, Non-patent Document 1). This technique results in an iron-nickel alloy having a low coefficient of thermal expansion and high hardness.
しかしながら、上記技術では、メッキ液に微粒子を含有させることが必須であったり、撹拌の条件を制御することが必須であったり、更にはメッキ後にも熱処理が必須であるため、工程が煩雑であった。そのため、より簡便にインバー組成と同様の性質の鉄－ニッケル合金をメッキで得る技術が求められていた。
However, in the above technology, it is essential to contain fine particles in the plating solution, it is essential to control the stirring conditions, and furthermore, heat treatment is also required after plating, so the process is complicated. The Therefore, a technique for obtaining an iron-nickel alloy of the same property as the invar composition more simply has been required.
本出願人は、特定の不飽和スルホン酸化合物を含有する鉄－ニッケル合金用電気メッキ液により、上記問題を解決して、低熱膨張係数および高硬度を有する鉄－ニッケル合金を得ている（特許文献２）。
The applicant has solved the above problems with an electroplating solution for iron-nickel alloy containing a specific unsaturated sulfonic acid compound to obtain an iron-nickel alloy having a low thermal expansion coefficient and high hardness (patented) Literature 2).
上記のようなメッキで得られるインバー組成の鉄－ニッケル合金は光沢性が乏しかったり、また、通常の使用では問題はないが、更に幅広い温度帯で性能が維持できないなどの課題があった。
The iron-nickel alloy of the invar composition obtained by the plating as described above has problems such as poor gloss and no problem in ordinary use, but the performance can not be maintained in a wider temperature range.
本発明は上記課題を解決するために鋭意研究した結果、本発明者らは従来公知の不飽和スルホン酸化合物を含有する鉄－ニッケル合金用電気メッキ液に、特定の構造を有するカルボン酸化合物を２種以上含有させたメッキ液で電気メッキをすることにより、光沢性を有し、組成が均一で、幅広い温度帯で低熱膨張係数を有する鉄－ニッケル合金が得られることを見出し、本発明を完成させた。
As a result of intensive studies to solve the above problems, the present inventors have studied carboxylic acid compounds having a specific structure in electroplating solutions for iron-nickel alloys containing a conventionally known unsaturated sulfonic acid compound. It has been found that by electroplating with a plating solution containing two or more kinds, it is possible to obtain an iron-nickel alloy having glossiness, uniform composition, and low thermal expansion coefficient in a wide temperature range. It was completed.
すなわち、本発明は以下の一般式（１）
（ただし、Ｒはビニル基またはエチニル基、Ｘは置換されていてもよい、アルキレン基またはフェニレン基、Ｙはアルカリ金属を示す。）
で表される不飽和スルホン酸化合物を含有する鉄－ニッケル合金用電気メッキ液であって、
更に、カルボキシル基を１つ以上、ヒドロキシ基を２つ以上有し、炭素数が２つ以上であるカルボン酸化合物を２種以上含有することを特徴とする低熱膨張係数を有する鉄－ニッケル合金用電気メッキ液である。 That is, the present invention has the following general formula (1)
(However, R is a vinyl group or ethynyl group, X is an optionally substituted alkylene group or phenylene group, and Y is an alkali metal.)
And an electroplating solution for an iron-nickel alloy containing the unsaturated sulfonic acid compound represented by
Furthermore, for an iron-nickel alloy having a low thermal expansion coefficient characterized by containing two or more kinds of carboxylic acid compounds having one or more carboxyl groups and two or more hydroxy groups and having two or more carbon atoms. It is an electroplating solution.
で表される不飽和スルホン酸化合物を含有する鉄－ニッケル合金用電気メッキ液であって、
更に、カルボキシル基を１つ以上、ヒドロキシ基を２つ以上有し、炭素数が２つ以上であるカルボン酸化合物を２種以上含有することを特徴とする低熱膨張係数を有する鉄－ニッケル合金用電気メッキ液である。 That is, the present invention has the following general formula (1)
And an electroplating solution for an iron-nickel alloy containing the unsaturated sulfonic acid compound represented by
Furthermore, for an iron-nickel alloy having a low thermal expansion coefficient characterized by containing two or more kinds of carboxylic acid compounds having one or more carboxyl groups and two or more hydroxy groups and having two or more carbon atoms. It is an electroplating solution.
また、本発明は、被メッキ物を、上記低熱膨張係数を有する鉄－ニッケル合金用電気メッキ液で電気メッキすることを特徴とする低熱膨張係数を有する鉄－ニッケル合金の電気メッキ方法である。
The present invention is also a method of electroplating an iron-nickel alloy having a low thermal expansion coefficient, which comprises electroplating a material to be plated with the electroplating solution for an iron-nickel alloy having a low thermal expansion coefficient.
更に、本発明は、被メッキ物を、上記低熱膨張係数を有する鉄－ニッケル合金用電気メッキ液で電気メッキすることにより得られる低熱膨張係数を有する鉄－ニッケル合金メッキ被覆製品である。
Further, the present invention is an iron-nickel alloy plated article having a low thermal expansion coefficient obtained by electroplating a material to be plated with the above-mentioned electroplating solution for iron-nickel alloy having a low thermal expansion coefficient.
本発明によれば溶製で得られるインバー組成の鉄－ニッケル合金よりも幅広い温度帯で低熱膨張係数を有する鉄－ニッケル合金を、電気メッキのみで得ることができる。
According to the present invention, an iron-nickel alloy having a low thermal expansion coefficient in a wider temperature range than an iron-nickel alloy of invar composition obtained by melting can be obtained only by electroplating.
そのため、本発明は、溶製で製造されるインバー組成の鉄－ニッケル合金と同様な用途に用いることができるのは勿論のこと、パワーエレクトロニクス等の新たな用途への応用が期待できる。
Therefore, the present invention can be expected to be applied to new applications such as power electronics, as well as being applicable to the same application as the iron-nickel alloy of invar composition manufactured by melting.
本発明の低熱膨張係数を有する鉄－ニッケル合金用メッキ液（以下、「本発明メッキ液」という）に用いられる、カルボキシル基を１つ以上、ヒドロキシ基を２つ以上有し、炭素数が２つ以上であるカルボン酸化合物は、特に限定されないが、例えば、グルコン酸、ガラクトン酸、マンノン酸、酒石酸等のカルボン酸や、酒石酸ナトリウム、グルコン酸ナトリウム等の前記カルボン酸のアルカリ金属塩等が挙げられる。これらのカルボン酸化合物の中でも酒石酸ナトリウム、グルコン酸ナトリウムが好ましい。なお、上記カルボン酸化合物において、カルボキシル基やヒドロキシ基の数を計算する場合、カルボキシル基中のヒドロキシ基は、ヒドロキシ基の数には入れない。そのため、マロン酸やリンゴ酸は上記カルボン酸化合物には含まれない。これらカルボン酸化合物は本発明メッキ液に２種以上、好ましくは２種含有させる必要がある。
It has one or more carboxyl groups and two or more hydroxy groups, and has 2 carbon atoms, which is used in the plating solution for iron-nickel alloys having a low thermal expansion coefficient of the present invention (hereinafter referred to as "the plating solution of the present invention") The carboxylic acid compound having at least one is not particularly limited, and examples thereof include carboxylic acids such as gluconic acid, galactonic acid, mannonic acid, and tartaric acid, and alkali metal salts of the above carboxylic acids such as sodium tartrate and sodium gluconate. Be Among these carboxylic acid compounds, sodium tartrate and sodium gluconate are preferred. In addition, in the said carboxylic acid compound, when calculating the number of a carboxyl group or a hydroxyl group, the hydroxyl group in a carboxyl group is not put into the number of a hydroxyl group. Therefore, malonic acid and malic acid are not included in the above-mentioned carboxylic acid compound. It is necessary to incorporate two or more, preferably two, of these carboxylic acid compounds in the plating solution of the present invention.
本発明メッキ液における、カルボン酸化合物の含有量は、特に限定されないが、例えば、２種類の合計量として、３０～２６０ｇ／ｌ、好ましくは５５～２００ｇ／ｌ、特に好ましくは８０～１６０ｇ／ｌである。本発明メッキ液に、カルボン酸化合物として、グルコン酸ナトリウムと酒石酸ナトリウムの２種を用いる場合には、グルコン酸ナトリウムは、２０～１８０ｇ／ｌ、好ましくは４０～１４０ｇ／ｌ、特に好ましくは６０～１２０ｇ／ｌであり、酒石酸ナトリウムは、１０～８０ｇ／ｌ、好ましくは１５～６０ｇ／ｌ、特に好ましくは２０～４０ｇ／ｌである。またグルコン酸ナトリウム／酒石酸ナトリウムの濃度比は質量比で１０～１．２５、好ましくは６．５～１．５、特に好ましくは５～２．５である。
Although the content of the carboxylic acid compound in the plating solution of the present invention is not particularly limited, it is, for example, 30 to 260 g / l, preferably 55 to 200 g / l, particularly preferably 80 to 160 g / l as a total of two types. It is. When two kinds of sodium gluconate and sodium tartrate are used as a carboxylic acid compound in the plating solution of the present invention, sodium gluconate is 20 to 180 g / l, preferably 40 to 140 g / l, particularly preferably 60 to 60 It is 120 g / l and sodium tartrate is 10 to 80 g / l, preferably 15 to 60 g / l, particularly preferably 20 to 40 g / l. The concentration ratio of sodium gluconate / sodium tartrate is 10 to 1.25, preferably 6.5 to 1.5, particularly preferably 5 to 2.5 in mass ratio.
本発明メッキ液に用いられる一般式（１）
で表される不飽和スルホン酸化合物は、上記式において、Ｒはビニル基またはエチニル基であり、好ましくはビニル基である。また、Ｘは置換されていてもよい、アルキレン基またはフェニレン基であり、好ましくは置換されていないアルキレン基またはフェニレン基であり、より好ましくは置換されていないアルキレン基である。置換基としては炭素数１～３のアルキル基、ハロゲン、ヒドロキシル基等が挙げられ、アルキレン基としては炭素数１～１０のもの、好ましくは炭素数１～３のもの、より好ましくは炭素数１のものが挙げられる。更に、Ｙはアルカリ金属であり、好ましくはリチウム、ナトリウム、カリウムであり、より好ましくはナトリウムである。
General formula (1) used for the plating solution of the present invention
In the unsaturated sulfonic acid compound represented by the above formula, R is a vinyl group or an ethynyl group, preferably a vinyl group. In addition, X is an optionally substituted alkylene group or phenylene group, preferably an unsubstituted alkylene group or phenylene group, and more preferably an unsubstituted alkylene group. Examples of the substituent include an alkyl group having 1 to 3 carbon atoms, a halogen, a hydroxyl group and the like, and an alkylene group having 1 to 10 carbon atoms, preferably 1 to 3 carbon atoms, more preferably 1 carbon atom The ones of Furthermore, Y is an alkali metal, preferably lithium, sodium, potassium, more preferably sodium.
より具体的な不飽和スルホン酸化合物としては、アリルスルホン酸ナトリウム、ビニルスルホン酸ナトリウム、プロピンスルホン酸ナトリウム等が挙げられ、好ましくはアリルスルホン酸ナトリウムである。これらの不飽和スルホン酸化合物は、１種または２種以上を組み合わせて用いても良い。
More specific examples of unsaturated sulfonic acid compounds include sodium allyl sulfonate, sodium vinyl sulfonate, sodium propyne sulfonate and the like, with preference given to sodium allyl sulfonate. These unsaturated sulfonic acid compounds may be used alone or in combination of two or more.
本発明メッキ液における、不飽和スルホン酸化合物の含有量は１～１０質量％（以下、単に「％」という）、好ましくは４～８％である。
The content of the unsaturated sulfonic acid compound in the plating solution of the present invention is 1 to 10% by mass (hereinafter simply referred to as "%"), preferably 4 to 8%.
本発明メッキ液のベースとなる鉄－ニッケル合金用電気メッキ液としては、特に限定されないが、例えば、鉄イオン、ニッケルイオン、グルコン酸等の錯化剤、ホウ酸、酢酸等の緩衝剤を含有する従来公知のものが挙げられる。より具体的な鉄－ニッケル合金用電気メッキ液としては、塩化物液、硫酸塩液、硫酸塩－塩化物液、シアン液、クエン酸液、ピロリン酸液、ワット液、スルファミン酸液等が挙げられる。これらの中でもワット液、スルファミン酸液が好ましい。
The electroplating solution for iron-nickel alloys, which is the base of the plating solution of the present invention, is not particularly limited, and includes, for example, iron ion, nickel ion, complexing agents such as gluconic acid, and buffering agents such as boric acid and acetic acid. Conventionally known ones. More specific examples of electroplating solutions for iron-nickel alloys include chloride solution, sulfate solution, sulfate-chloride solution, cyan solution, citric acid solution, pyrophosphoric acid solution, watt solution, sulfamic acid solution, etc. Be Among these, watt liquid and sulfamic acid liquid are preferable.
また、本発明メッキ液には、上記した鉄－ニッケル合金用電気メッキ液に、更にコバルト、モリブデン、タングステンを含有させてもよい。この場合のコバルト、モリブデン、タングステンの添加量は特に限定されず、例えば０.１～１００ｇ／ｌ、好ましくは０.５～５０ｇ／ｌである。また、コバルト源としては、硫酸コバルト、スルファミン酸コバルト、モリブデン酸ナトリウム、タングステン酸ナトリウム等が挙げられる。
The plating solution of the present invention may further contain cobalt, molybdenum and tungsten in the above-mentioned electroplating solution for iron-nickel alloy. The amount of cobalt, molybdenum and tungsten added in this case is not particularly limited, and is, for example, 0.1 to 100 g / l, preferably 0.5 to 50 g / l. Moreover, cobalt sulfate, cobalt sulfamate, sodium molybdate, sodium tungstate etc. are mentioned as a cobalt source.
なお、本発明メッキ液には、上記した鉄－ニッケル合金用電気メッキ液において、特に鉄を５～２０ｇ／ｌ、好ましくは７．５～１７．５ｇ／ｌ、特に好ましくは１０～１５ｇ/ｌ、ニッケルを３０～７０ｇ／ｌ、好ましくは４０～６０ｇ／ｌ含有させたものを用いることが好ましい。
In the plating solution of the present invention, the above-mentioned electroplating solution for iron-nickel alloy is especially 5 to 20 g / l, preferably 7.5 to 17.5 g / l, particularly preferably 10 to 15 g / l of iron. It is preferable to use one containing 30 to 70 g / l, preferably 40 to 60 g / l of nickel.
以下に、本発明メッキ液の好ましい態様として、ワット液、スルファミン酸液の組成を記載する。
Below, the composition of a watt liquid and a sulfamic acid liquid is described as a preferable aspect of this invention plating liquid.
＜ワット液＞
硫酸ニッケル６水和物：８０～２３０ｇ／ｌ、好ましくは１１０～２００ｇ／ｌ
塩化ニッケル６水和物：４０～８０ｇ／ｌ、好ましくは５０～７０ｇ／ｌ
ホウ酸：３０～６０ｇ／ｌ
硫酸第一鉄７水和物：２５～１００ｇ／ｌ、好ましくは３７．５～７５ｇ／ｌ
グルコン酸ナトリウム： ２０～１８０ｇ／ｌ、好ましくは４０～１４０ｇ／ｌ、特に好ましくは６０～１２０ｇ／ｌ
酒石酸ナトリウム２水和物： １０～８０ｇ／ｌ、好ましくは１５～６０ｇ／ｌ、特に好ましくは２０～４０ｇ／ｌ
サッカリン酸ナトリウム：１～５ｇ／ｌ、好ましくは２～４ｇ／ｌ
アリルスルホン酸ナトリウム：１.５～１０ｇ／ｌ、好ましくは３.５～８.５ｇ／ｌ <Watt liquid>
Nickel sulfate hexahydrate: 80 to 230 g / l, preferably 110 to 200 g / l
Nickel chloride hexahydrate: 40 to 80 g / l, preferably 50 to 70 g / l
Boric acid: 30 to 60 g / l
Ferrous sulfate heptahydrate: 25 to 100 g / l, preferably 37.5 to 75 g / l
Sodium gluconate: 20 to 180 g / l, preferably 40 to 140 g / l, particularly preferably 60 to 120 g / l
Sodium tartrate dihydrate: 10 to 80 g / l, preferably 15 to 60 g / l, particularly preferably 20 to 40 g / l
Sodium saccharinate: 1 to 5 g / l, preferably 2 to 4 g / l
Sodium allyl sulfonate: 1.5 to 10 g / l, preferably 3.5 to 8.5 g / l
硫酸ニッケル６水和物：８０～２３０ｇ／ｌ、好ましくは１１０～２００ｇ／ｌ
塩化ニッケル６水和物：４０～８０ｇ／ｌ、好ましくは５０～７０ｇ／ｌ
ホウ酸：３０～６０ｇ／ｌ
硫酸第一鉄７水和物：２５～１００ｇ／ｌ、好ましくは３７．５～７５ｇ／ｌ
グルコン酸ナトリウム： ２０～１８０ｇ／ｌ、好ましくは４０～１４０ｇ／ｌ、特に好ましくは６０～１２０ｇ／ｌ
酒石酸ナトリウム２水和物： １０～８０ｇ／ｌ、好ましくは１５～６０ｇ／ｌ、特に好ましくは２０～４０ｇ／ｌ
サッカリン酸ナトリウム：１～５ｇ／ｌ、好ましくは２～４ｇ／ｌ
アリルスルホン酸ナトリウム：１.５～１０ｇ／ｌ、好ましくは３.５～８.５ｇ／ｌ <Watt liquid>
Nickel sulfate hexahydrate: 80 to 230 g / l, preferably 110 to 200 g / l
Nickel chloride hexahydrate: 40 to 80 g / l, preferably 50 to 70 g / l
Boric acid: 30 to 60 g / l
Ferrous sulfate heptahydrate: 25 to 100 g / l, preferably 37.5 to 75 g / l
Sodium gluconate: 20 to 180 g / l, preferably 40 to 140 g / l, particularly preferably 60 to 120 g / l
Sodium tartrate dihydrate: 10 to 80 g / l, preferably 15 to 60 g / l, particularly preferably 20 to 40 g / l
Sodium saccharinate: 1 to 5 g / l, preferably 2 to 4 g / l
Sodium allyl sulfonate: 1.5 to 10 g / l, preferably 3.5 to 8.5 g / l
＜スルファミン酸液＞
スルファミン酸ニッケル４水和物：１６０～３７０ｇ／ｌ、好ましくは２１０～３２０ｇ／ｌ
ホウ酸：３０～６０ｇ／ｌ
臭化ニッケル：５～１５ｇ／ｌ、好ましくは６～１０ｇ／ｌ
スルファミン酸鉄５水和物：３０～１２５ｇ／ｌ、好ましくは４５～９５ｇ／ｌ
グルコン酸ナトリウム： ２０～１８０ｇ／ｌ、好ましくは４０～１４０ｇ／ｌ、特に好ましくは６０～１２０ｇ／ｌ
酒石酸ナトリウム２水和物： １０～８０ｇ／ｌ、好ましくは１５～６０ｇ／ｌ、特に好ましくは２０～４０ｇ／ｌ
サッカリン酸ナトリウム：１～５ｇ／ｌ、好ましくは２～４ｇ／ｌ
アリルスルホン酸ナトリウム：１.５～１０ｇ／ｌ、好ましくは３.５～８.５ｇ／ｌ <Sulfamic acid solution>
Nickel sulfamate tetrahydrate: 160 to 370 g / l, preferably 210 to 320 g / l
Boric acid: 30 to 60 g / l
Nickel bromide: 5 to 15 g / l, preferably 6 to 10 g / l
Iron sulfamate pentahydrate: 30 to 125 g / l, preferably 45 to 95 g / l
Sodium gluconate: 20 to 180 g / l, preferably 40 to 140 g / l, particularly preferably 60 to 120 g / l
Sodium tartrate dihydrate: 10 to 80 g / l, preferably 15 to 60 g / l, particularly preferably 20 to 40 g / l
Sodium saccharinate: 1 to 5 g / l, preferably 2 to 4 g / l
Sodium allyl sulfonate: 1.5 to 10 g / l, preferably 3.5 to 8.5 g / l
スルファミン酸ニッケル４水和物：１６０～３７０ｇ／ｌ、好ましくは２１０～３２０ｇ／ｌ
ホウ酸：３０～６０ｇ／ｌ
臭化ニッケル：５～１５ｇ／ｌ、好ましくは６～１０ｇ／ｌ
スルファミン酸鉄５水和物：３０～１２５ｇ／ｌ、好ましくは４５～９５ｇ／ｌ
グルコン酸ナトリウム： ２０～１８０ｇ／ｌ、好ましくは４０～１４０ｇ／ｌ、特に好ましくは６０～１２０ｇ／ｌ
酒石酸ナトリウム２水和物： １０～８０ｇ／ｌ、好ましくは１５～６０ｇ／ｌ、特に好ましくは２０～４０ｇ／ｌ
サッカリン酸ナトリウム：１～５ｇ／ｌ、好ましくは２～４ｇ／ｌ
アリルスルホン酸ナトリウム：１.５～１０ｇ／ｌ、好ましくは３.５～８.５ｇ／ｌ <Sulfamic acid solution>
Nickel sulfamate tetrahydrate: 160 to 370 g / l, preferably 210 to 320 g / l
Boric acid: 30 to 60 g / l
Nickel bromide: 5 to 15 g / l, preferably 6 to 10 g / l
Iron sulfamate pentahydrate: 30 to 125 g / l, preferably 45 to 95 g / l
Sodium gluconate: 20 to 180 g / l, preferably 40 to 140 g / l, particularly preferably 60 to 120 g / l
Sodium tartrate dihydrate: 10 to 80 g / l, preferably 15 to 60 g / l, particularly preferably 20 to 40 g / l
Sodium saccharinate: 1 to 5 g / l, preferably 2 to 4 g / l
Sodium allyl sulfonate: 1.5 to 10 g / l, preferably 3.5 to 8.5 g / l
本発明メッキ液を用いて被メッキ物に電気メッキする方法は、特に限定されず、例えば、被メッキ物に、アルカリ脱脂、酸活性等の前処理を行った後、これを本発明メッキ液に浸漬する方法等が挙げられる。
The method for electroplating the object to be plated using the plating solution of the present invention is not particularly limited. For example, after subjecting the object to be plated to pretreatment such as alkaline degreasing and acid activity, this is used as the plating solution of the present invention. The method of immersing etc. are mentioned.
電気メッキの条件は、特に限定されず、通常の鉄－ニッケル合金の電気メッキの条件を用いればよく、例えば、液温２０～６０℃で、アノードに鉄、ニッケルを併用し、陰極電流密度０．５～３Ａ／ｄｍ２で行えばよい。また、電気メッキの際にはパドル等で撹拌することが好ましい。
The conditions for electroplating are not particularly limited, and conditions for electroplating of ordinary iron-nickel alloys may be used. For example, iron and nickel are used in combination at a liquid temperature of 20 to 60 ° C., and cathode current density 0 .5 to 3 A / dm 2 may be performed. Moreover, it is preferable to stir by a paddle etc. in the case of electroplating.
なお、電気メッキの条件として、メッキ液の温度を高くすれば得られる鉄－ニッケル合金における鉄の比率が低くなり、また、撹拌速度を早くすれば鉄の比率は高くなり、更に、メッキ液の鉄濃度を相対的に下げれば鉄の比率が低くなる傾向がわかっているため、当業者であればこれらの条件の調整により鉄－ニッケル合金における鉄とニッケルの比率を制御することもできる。
As a condition of electroplating, if the temperature of the plating solution is raised, the ratio of iron in the obtained iron-nickel alloy decreases, and if the stirring speed is increased, the ratio of iron increases, and furthermore, the plating solution It is known that those skilled in the art can control the ratio of iron to nickel in the iron-nickel alloy by adjusting these conditions, since it is known that the relative reduction in iron concentration tends to lower the ratio of iron.
本発明メッキ液で電気メッキすることができる被メッキ物は特に限定されず、例えば、表面が、銅、ニッケル、ステンレス等の金属、ＡＢＳ、ポリイミド等の樹脂等で形成されたもの等が挙げられる。
The material to be plated which can be electroplated with the plating solution of the present invention is not particularly limited. For example, the surface may be formed of a metal such as copper, nickel or stainless, a resin such as ABS or polyimide, etc. .
上記のようにして被メッキ物に電気メッキして得られる鉄－ニッケル合金メッキ被覆製品は、低熱膨張係数および高硬度を有する。具体的には、鉄とニッケルの比率が、両者の合計量を１００％として、鉄が５５～７０％およびニッケルが３０～４５％、好ましくは鉄が５６～６４％およびニッケルが３６～４４％であり、２５～４００℃の範囲で測定される熱膨張係数が４．５×１０－６／℃以下、好ましくは４.０×１０－６／℃以下、特に好ましくは３．０×１０－６／℃以下、０．０５×１０－６／℃以上である。なお、熱膨張係数は、例えば、窒素雰囲気下で測定されることが好ましい。
The iron-nickel alloy plated product obtained by electroplating the object to be plated as described above has a low thermal expansion coefficient and high hardness. Specifically, the ratio of iron and nickel is 55 to 70% of iron and 30 to 45% of nickel, preferably 56 to 64% of iron and 36 to 44% of nickel, where the total amount of both is 100%. The thermal expansion coefficient measured in the range of 25 to 400 ° C. is 4.5 × 10 −6 / ° C. or less, preferably 4.0 × 10 −6 / ° C. or less, particularly preferably 3.0 × 10 − 6 / ° C. or less, and 0.05 × 10 −6 / ° C. or more. The thermal expansion coefficient is preferably measured, for example, under a nitrogen atmosphere.
このような性質を有する鉄－ニッケル合金メッキ被覆製品は、組成が均一で、低熱膨張係数を有するためメタルマスク、パワーエレクトロニクス分野の配線基板等に利用することができる。
The iron-nickel alloy plated product having such properties has a uniform composition and a low coefficient of thermal expansion, and can be used as a metal mask, a wiring substrate in the field of power electronics, and the like.
以下、本発明を実施例を挙げて詳細に説明するが、本発明はこれら実施例に何ら限定されるものではない。
EXAMPLES Hereinafter, the present invention will be described in detail by way of examples, but the present invention is not limited to these examples.
実 施 例 １
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル・４水和物２７０ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄・５水和物８７ｇ／ｌ、グルコン酸ナトリウム１００ｇ／ｌ、酒石酸ナトリウム２５ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ５０．７ｇ／ｌおよび１３．７ｇ／ｌであった。 Example 1
Preparation of electroplating solutions for iron-nickel alloys:
In water, 270 g / l of nickel sulfamate tetrahydrate, 30 g / l of boric acid, 7 g / l of nickel bromide, 87 g / l of iron sulfamate pentahydrate, 100 g / l of sodium gluconate, 25 g of sodium tartrate / L, saccharin sodium 3.2 g / l and sodium allyl sulfonate (36%) 16 ml / l were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 13.7 g / l, respectively.
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル・４水和物２７０ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄・５水和物８７ｇ／ｌ、グルコン酸ナトリウム１００ｇ／ｌ、酒石酸ナトリウム２５ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ５０．７ｇ／ｌおよび１３．７ｇ／ｌであった。 Example 1
Preparation of electroplating solutions for iron-nickel alloys:
In water, 270 g / l of nickel sulfamate tetrahydrate, 30 g / l of boric acid, 7 g / l of nickel bromide, 87 g / l of iron sulfamate pentahydrate, 100 g / l of sodium gluconate, 25 g of sodium tartrate / L, saccharin sodium 3.2 g / l and sodium allyl sulfonate (36%) 16 ml / l were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 13.7 g / l, respectively.
実 施 例 ２
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル・４水和物２７０ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄・５水和物９２ｇ／ｌ、グルコン酸ナトリウム１００ｇ／ｌ、酒石酸ナトリウム１５ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ５０．７ｇ／ｌおよび１４．５ｇ／ｌであった。 Example 2
Preparation of electroplating solutions for iron-nickel alloys:
In water, 270 g / l nickel sulfamate tetrahydrate, 30 g / l boric acid, 7 g / l nickel bromide, 92 g / l iron sulfamate pentahydrate, 100 g / l sodium gluconate, 15 g sodium tartrate / L, saccharin sodium 3.2 g / l and sodium allyl sulfonate (36%) 16 ml / l were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 14.5 g / l, respectively.
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル・４水和物２７０ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄・５水和物９２ｇ／ｌ、グルコン酸ナトリウム１００ｇ／ｌ、酒石酸ナトリウム１５ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ５０．７ｇ／ｌおよび１４．５ｇ／ｌであった。 Example 2
Preparation of electroplating solutions for iron-nickel alloys:
In water, 270 g / l nickel sulfamate tetrahydrate, 30 g / l boric acid, 7 g / l nickel bromide, 92 g / l iron sulfamate pentahydrate, 100 g / l sodium gluconate, 15 g sodium tartrate / L, saccharin sodium 3.2 g / l and sodium allyl sulfonate (36%) 16 ml / l were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 14.5 g / l, respectively.
実 施 例 ３
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル・４水和物２７０ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄・５水和物８７ｇ／ｌ、グルコン酸ナトリウム１００ｇ／ｌ、酒石酸ナトリウム６０ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ５０．７ｇ／ｌおよび１３．７ｇ／ｌであった。 Example 3
Preparation of electroplating solutions for iron-nickel alloys:
In water, 270 g / l of nickel sulfamate tetrahydrate, 30 g / l of boric acid, 7 g / l of nickel bromide, 87 g / l of iron sulfamate pentahydrate, 100 g / l of sodium gluconate, 60 g of sodium tartrate / L, saccharin sodium 3.2 g / l and sodium allyl sulfonate (36%) 16 ml / l were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 13.7 g / l, respectively.
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル・４水和物２７０ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄・５水和物８７ｇ／ｌ、グルコン酸ナトリウム１００ｇ／ｌ、酒石酸ナトリウム６０ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ５０．７ｇ／ｌおよび１３．７ｇ／ｌであった。 Example 3
Preparation of electroplating solutions for iron-nickel alloys:
In water, 270 g / l of nickel sulfamate tetrahydrate, 30 g / l of boric acid, 7 g / l of nickel bromide, 87 g / l of iron sulfamate pentahydrate, 100 g / l of sodium gluconate, 60 g of sodium tartrate / L, saccharin sodium 3.2 g / l and sodium allyl sulfonate (36%) 16 ml / l were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 13.7 g / l, respectively.
比 較 例 １
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル・４水和物１５６ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄・５水和物４７ｇ／ｌ、グルコン酸ナトリウム６０ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ３０ｇ／ｌおよび７．５ｇ／ｌであった。 Comparative example 1
Preparation of electroplating solutions for iron-nickel alloys:
In water, nickel sulfamate tetrahydrate 156 g / l, boric acid 30 g / l, nickel bromide 7 g / l, iron sulfamate pentahydrate 47 g / l, sodium gluconate 60 g / l, saccharin sodium 3. 2 g / l and 16 ml / l of sodium allyl sulfonate (36%) were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 30 g / l and 7.5 g / l, respectively.
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル・４水和物１５６ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄・５水和物４７ｇ／ｌ、グルコン酸ナトリウム６０ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ３０ｇ／ｌおよび７．５ｇ／ｌであった。 Comparative example 1
Preparation of electroplating solutions for iron-nickel alloys:
In water, nickel sulfamate tetrahydrate 156 g / l, boric acid 30 g / l, nickel bromide 7 g / l, iron sulfamate pentahydrate 47 g / l, sodium gluconate 60 g / l, saccharin sodium 3. 2 g / l and 16 ml / l of sodium allyl sulfonate (36%) were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 30 g / l and 7.5 g / l, respectively.
比 較 例 ２
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル・４水和物２７０ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄・５水和物８７ｇ／ｌ、グルコン酸ナトリウム１００ｇ／ｌ、マロン酸二ナトリウム２５ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ５０．７ｇ／ｌおよび１３．７ｇ／ｌであった。 Comparative example 2
Preparation of electroplating solutions for iron-nickel alloys:
In water, 270 g / l of nickel sulfamate tetrahydrate, 30 g / l of boric acid, 7 g / l of nickel bromide, 87 g / l of iron sulfamate pentahydrate, 100 g / l of sodium gluconate, malonic acid dihydrate Sodium 25 g / l, saccharin sodium 3.2 g / l and sodium allyl sulfonate (36%) 16 ml / l were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 13.7 g / l, respectively.
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル・４水和物２７０ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄・５水和物８７ｇ／ｌ、グルコン酸ナトリウム１００ｇ／ｌ、マロン酸二ナトリウム２５ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ５０．７ｇ／ｌおよび１３．７ｇ／ｌであった。 Comparative example 2
Preparation of electroplating solutions for iron-nickel alloys:
In water, 270 g / l of nickel sulfamate tetrahydrate, 30 g / l of boric acid, 7 g / l of nickel bromide, 87 g / l of iron sulfamate pentahydrate, 100 g / l of sodium gluconate, malonic acid dihydrate Sodium 25 g / l, saccharin sodium 3.2 g / l and sodium allyl sulfonate (36%) 16 ml / l were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 13.7 g / l, respectively.
比 較 例 ３
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル・４水和物２７０ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄・５水和物８７ｇ／ｌ、グルコン酸ナトリウム１００ｇ／ｌ、リンゴ酸ナトリウム１５ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ５０．７ｇ／ｌおよび１３．７ｇ／ｌであった。 Comparative example 3
Preparation of electroplating solutions for iron-nickel alloys:
In water, 270 g / l nickel sulfamate tetrahydrate, 30 g / l boric acid, 7 g / l nickel bromide, 87 g / l iron sulfamate pentahydrate, 100 g / l sodium gluconate, sodium malate 15 g / l, saccharin sodium 3.2 g / l and sodium allyl sulfonate (36%) 16 ml / l were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 13.7 g / l, respectively.
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル・４水和物２７０ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄・５水和物８７ｇ／ｌ、グルコン酸ナトリウム１００ｇ／ｌ、リンゴ酸ナトリウム１５ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ５０．７ｇ／ｌおよび１３．７ｇ／ｌであった。 Comparative example 3
Preparation of electroplating solutions for iron-nickel alloys:
In water, 270 g / l nickel sulfamate tetrahydrate, 30 g / l boric acid, 7 g / l nickel bromide, 87 g / l iron sulfamate pentahydrate, 100 g / l sodium gluconate, sodium malate 15 g / l, saccharin sodium 3.2 g / l and sodium allyl sulfonate (36%) 16 ml / l were added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 13.7 g / l, respectively.
実 施 例 ４
鉄－ニッケル合金電気メッキ皮膜の形成：
以下の方法で、実施例１～３、比較例１～３で調製した鉄－ニッケル合金用電気メッキ液を用いて、電気メッキをした。 Example 4
Formation of iron-nickel alloy electroplating film:
Electroplating was performed using the electroplating solution for iron-nickel alloys prepared in Examples 1 to 3 and Comparative Examples 1 to 3 by the following method.
鉄－ニッケル合金電気メッキ皮膜の形成：
以下の方法で、実施例１～３、比較例１～３で調製した鉄－ニッケル合金用電気メッキ液を用いて、電気メッキをした。 Example 4
Formation of iron-nickel alloy electroplating film:
Electroplating was performed using the electroplating solution for iron-nickel alloys prepared in Examples 1 to 3 and Comparative Examples 1 to 3 by the following method.
銅板（６０×８０ｍｍ）に、アルカリ脱脂（５５℃、１０分）および酸活性（室温、３０秒）を行った後、実施例１～３、比較例１～３で調製した鉄－ニッケル合金用電気メッキ液に以下の条件で浸漬して目標膜厚１０μｍで電気メッキをして鉄－ニッケル合金電気メッキ皮膜を得た。なお、比較例２で調製した鉄－ニッケル合金用電気メッキ液については、上記条件のうち、液温を４０℃に、撹拌をパドル撹拌（６ｍ／ｍｉｎ）に代えて電気メッキをして鉄－ニッケル合金電気メッキ皮膜を得た。
After performing alkaline degreasing (55 ° C., 10 minutes) and acid activity (room temperature, 30 seconds) on a copper plate (60 × 80 mm), for iron-nickel alloys prepared in Examples 1 to 3 and Comparative Examples 1 to 3 The iron-nickel alloy electroplated film was obtained by immersing in an electroplating solution under the following conditions and electroplating with a target film thickness of 10 μm. Regarding the electroplating solution for iron-nickel alloy prepared in Comparative Example 2, among the above conditions, the solution temperature was set to 40 ° C., and the stirring was changed to paddle stirring (6 m / min) to conduct electroplating. A nickel alloy electroplated film was obtained.
＜メッキ条件＞
メッキ時間：６０分
液温：４５℃
アノード：鉄、ニッケル
陰極電流密度：１Ａ／ｄｍ２
撹拌：パドル撹拌（３ｍ／ｍｉｎ） <Plating conditions>
Plating time: 60 minutes Liquid temperature: 45 ° C
Anode: iron, nickel cathode current density: 1A / dm 2
Stirring: Paddle stirring (3 m / min)
メッキ時間：６０分
液温：４５℃
アノード：鉄、ニッケル
陰極電流密度：１Ａ／ｄｍ２
撹拌：パドル撹拌（３ｍ／ｍｉｎ） <Plating conditions>
Plating time: 60 minutes Liquid temperature: 45 ° C
Anode: iron, nickel cathode current density: 1A / dm 2
Stirring: Paddle stirring (3 m / min)
試 験 例 １
物性測定：
実施例１～３および比較例１～３で得られたメッキ皮膜について、外観を目視で評価した後、熱膨張係数を窒素雰囲気下、表１に記載の範囲で熱・応力・歪測定装置（エスアイアイ・ナノテクノロジー製：ＴＭＡ／ＳＳ ６１００：荷重５０ｍＮ：昇温速度５℃／ｍｉｎ）を用いて測定した。また、皮膜組成の均一性をＸＲＦで調べ、以下の評価基準で評価した。これらの結果を表１に示した。更に、皮膜中の鉄－ニッケルの質量比を蛍光Ｘ線分析法で求めたところ、鉄－ニッケルの質量比は、何れも６４：３６であった（小数点一桁を四捨五入）。なお、比較として冶金インバー合金（鉄－ニッケルの質量比は、６４：３６）についても同様の測定を行った。 Test example 1
Physical property measurement:
The appearances of the plated films obtained in Examples 1 to 3 and Comparative Examples 1 to 3 were visually evaluated, and then the thermal expansion coefficient was measured in the range described in Table 1 in a nitrogen atmosphere, using a thermal, stress, and strain measuring device ( It was measured using SSI Nanotechnologies: TMA / SS 6100: load 50 mN: temperature rising rate 5 ° C./min). Further, the uniformity of the film composition was examined by XRF and evaluated by the following evaluation criteria. These results are shown in Table 1. Furthermore, when the mass ratio of iron-nickel in the film was determined by fluorescent X-ray analysis, the mass ratio of iron-nickel was all 64: 36 (rounded to the first decimal place). As a comparison, the same measurement was performed on a metallurgical Invar alloy (mass ratio of iron-nickel: 64:36).
物性測定：
実施例１～３および比較例１～３で得られたメッキ皮膜について、外観を目視で評価した後、熱膨張係数を窒素雰囲気下、表１に記載の範囲で熱・応力・歪測定装置（エスアイアイ・ナノテクノロジー製：ＴＭＡ／ＳＳ ６１００：荷重５０ｍＮ：昇温速度５℃／ｍｉｎ）を用いて測定した。また、皮膜組成の均一性をＸＲＦで調べ、以下の評価基準で評価した。これらの結果を表１に示した。更に、皮膜中の鉄－ニッケルの質量比を蛍光Ｘ線分析法で求めたところ、鉄－ニッケルの質量比は、何れも６４：３６であった（小数点一桁を四捨五入）。なお、比較として冶金インバー合金（鉄－ニッケルの質量比は、６４：３６）についても同様の測定を行った。 Test example 1
Physical property measurement:
The appearances of the plated films obtained in Examples 1 to 3 and Comparative Examples 1 to 3 were visually evaluated, and then the thermal expansion coefficient was measured in the range described in Table 1 in a nitrogen atmosphere, using a thermal, stress, and strain measuring device ( It was measured using SSI Nanotechnologies: TMA / SS 6100: load 50 mN: temperature rising rate 5 ° C./min). Further, the uniformity of the film composition was examined by XRF and evaluated by the following evaluation criteria. These results are shown in Table 1. Furthermore, when the mass ratio of iron-nickel in the film was determined by fluorescent X-ray analysis, the mass ratio of iron-nickel was all 64: 36 (rounded to the first decimal place). As a comparison, the same measurement was performed on a metallurgical Invar alloy (mass ratio of iron-nickel: 64:36).
＜皮膜組成の均一性の評価基準＞
評価 内容
○ ：５箇所測定し、ばらつきが平均値より±３％以内
× ：５箇所測定し、ばらつきが平均値より±３％以上 <Evaluation criteria for uniformity of film composition>
Evaluation Contents ○: Measured at 5 locations, variation is ± 3% or less from the average value ×: Measured at 5 locations, variation is ± 3% or more from the average value
評価 内容
○ ：５箇所測定し、ばらつきが平均値より±３％以内
× ：５箇所測定し、ばらつきが平均値より±３％以上 <Evaluation criteria for uniformity of film composition>
Evaluation Contents ○: Measured at 5 locations, variation is ± 3% or less from the average value ×: Measured at 5 locations, variation is ± 3% or more from the average value
この結果よりグルコン酸ナトリウムと酒石酸ナトリウムを２種混合すること皮膜中の鉄６４％の皮膜において光沢外観、良好な組成均一性を有することおよび幅広い温度領域で低熱膨張率を示すことが分かった。
From these results, it was found that the mixture of two types of sodium gluconate and sodium tartrate had a glossy appearance, a good composition uniformity and a low thermal expansion coefficient in a wide temperature range in a film of iron 64% in the film.
実 施 例 ５
鉄－ニッケル合金用電気メッキ液の調製：
実施例１の鉄－ニッケル合金用電気メッキ液において、スルファミン酸ニッケル・４水和物を２９７ｇ／ｌとする以外は同様にして、鉄－ニッケル合金用電気メッキ液を調製した。 Example 5
Preparation of electroplating solutions for iron-nickel alloys:
An electroplating solution for iron-nickel alloy was prepared in the same manner as in the electroplating solution for iron-nickel alloy of Example 1, except that the nickel sulfamate tetrahydrate was changed to 297 g / l.
鉄－ニッケル合金用電気メッキ液の調製：
実施例１の鉄－ニッケル合金用電気メッキ液において、スルファミン酸ニッケル・４水和物を２９７ｇ／ｌとする以外は同様にして、鉄－ニッケル合金用電気メッキ液を調製した。 Example 5
Preparation of electroplating solutions for iron-nickel alloys:
An electroplating solution for iron-nickel alloy was prepared in the same manner as in the electroplating solution for iron-nickel alloy of Example 1, except that the nickel sulfamate tetrahydrate was changed to 297 g / l.
実 施 例 ６
鉄－ニッケル合金用電気メッキ液の調製：
実施例１の鉄－ニッケル合金用電気メッキ液において、スルファミン酸ニッケル・４水和物を３１５ｇ／ｌとする以外は同様にして、鉄－ニッケル合金用電気メッキ液を調製した。 Example 6
Preparation of electroplating solutions for iron-nickel alloys:
An electroplating solution for iron-nickel alloy was prepared in the same manner as in the electroplating solution for iron-nickel alloy of Example 1, except that the amount of nickel sulfamate tetrahydrate was set to 315 g / l.
鉄－ニッケル合金用電気メッキ液の調製：
実施例１の鉄－ニッケル合金用電気メッキ液において、スルファミン酸ニッケル・４水和物を３１５ｇ／ｌとする以外は同様にして、鉄－ニッケル合金用電気メッキ液を調製した。 Example 6
Preparation of electroplating solutions for iron-nickel alloys:
An electroplating solution for iron-nickel alloy was prepared in the same manner as in the electroplating solution for iron-nickel alloy of Example 1, except that the amount of nickel sulfamate tetrahydrate was set to 315 g / l.
実 施 例 ７
鉄－ニッケル合金用電気メッキ液の調製：
実施例１の鉄－ニッケル合金用電気メッキ液において、ｐＨを３．４とする以外は同様にして、鉄－ニッケル合金用電気メッキ液を調製した。 Example 7
Preparation of electroplating solutions for iron-nickel alloys:
An electroplating solution for iron-nickel alloy was prepared in the same manner as in the electroplating solution for iron-nickel alloy of Example 1, except that the pH was adjusted to 3.4.
鉄－ニッケル合金用電気メッキ液の調製：
実施例１の鉄－ニッケル合金用電気メッキ液において、ｐＨを３．４とする以外は同様にして、鉄－ニッケル合金用電気メッキ液を調製した。 Example 7
Preparation of electroplating solutions for iron-nickel alloys:
An electroplating solution for iron-nickel alloy was prepared in the same manner as in the electroplating solution for iron-nickel alloy of Example 1, except that the pH was adjusted to 3.4.
実 施 例 ８
鉄－ニッケル合金用電気メッキ液の調製：
実施例１の鉄－ニッケル合金用電気メッキ液において、ｐＨを４．２とする以外は同様にして、鉄－ニッケル合金用電気メッキ液を調製した。 Example 8
Preparation of electroplating solutions for iron-nickel alloys:
An electroplating solution for iron-nickel alloy was prepared in the same manner as in the electroplating solution for iron-nickel alloy of Example 1, except that the pH was changed to 4.2.
鉄－ニッケル合金用電気メッキ液の調製：
実施例１の鉄－ニッケル合金用電気メッキ液において、ｐＨを４．２とする以外は同様にして、鉄－ニッケル合金用電気メッキ液を調製した。 Example 8
Preparation of electroplating solutions for iron-nickel alloys:
An electroplating solution for iron-nickel alloy was prepared in the same manner as in the electroplating solution for iron-nickel alloy of Example 1, except that the pH was changed to 4.2.
実 施 例 ９
鉄－ニッケル合金電気メッキ皮膜の形成：
実施例５～８で調製した鉄－ニッケル合金用電気メッキ液を用いて、実施例５と同様にして、電気メッキをした。また、実施例１で調製した鉄－ニッケル合金用電気メッキ液を用いて液温を３５℃（実施例１０）、５５℃（実施例１１）または撹拌をパドル撹拌（６ｍ／ｍｉｎ）（実施例１２）にする以外は実施例５と同様にして、電気メッキをした。鉄－ニッケルの質量比と皮膜組成の均一性を実施例５と同様にして評価した。その結果を表２に示した。 Example 9
Formation of iron-nickel alloy electroplating film:
Electroplating was carried out in the same manner as in Example 5 using the electroplating solution for iron-nickel alloy prepared in Examples 5-8. In addition, using the electroplating solution for iron-nickel alloy prepared in Example 1, the solution temperature is 35 ° C. (Example 10), 55 ° C. (Example 11) or paddle agitation (6 m / min) (Example) Electroplating was carried out in the same manner as in Example 5 except that 12) was used. The iron-nickel mass ratio and the uniformity of the film composition were evaluated in the same manner as in Example 5. The results are shown in Table 2.
鉄－ニッケル合金電気メッキ皮膜の形成：
実施例５～８で調製した鉄－ニッケル合金用電気メッキ液を用いて、実施例５と同様にして、電気メッキをした。また、実施例１で調製した鉄－ニッケル合金用電気メッキ液を用いて液温を３５℃（実施例１０）、５５℃（実施例１１）または撹拌をパドル撹拌（６ｍ／ｍｉｎ）（実施例１２）にする以外は実施例５と同様にして、電気メッキをした。鉄－ニッケルの質量比と皮膜組成の均一性を実施例５と同様にして評価した。その結果を表２に示した。 Example 9
Formation of iron-nickel alloy electroplating film:
Electroplating was carried out in the same manner as in Example 5 using the electroplating solution for iron-nickel alloy prepared in Examples 5-8. In addition, using the electroplating solution for iron-nickel alloy prepared in Example 1, the solution temperature is 35 ° C. (Example 10), 55 ° C. (Example 11) or paddle agitation (6 m / min) (Example) Electroplating was carried out in the same manner as in Example 5 except that 12) was used. The iron-nickel mass ratio and the uniformity of the film composition were evaluated in the same manner as in Example 5. The results are shown in Table 2.
以上の結果より、鉄－ニッケルの質量比は、メッキ液中のニッケル濃度、ｐＨ、液温、撹拌速度を調整することにより、調整可能なことが分かった。
From the above results, it was found that the mass ratio of iron-nickel can be adjusted by adjusting the concentration of nickel in the plating solution, pH, solution temperature, and stirring speed.
参 考 例 １
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル１５６ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄５０ｇ／ｌ、グルコン酸ナトリウム６０ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ３０ｇ／ｌおよび８ｇ／ｌであった。 Reference Example 1
Preparation of electroplating solutions for iron-nickel alloys:
In water, 156 g / l of nickel sulfamate, 30 g / l of boric acid, 7 g / l of nickel bromide, 50 g / l of iron sulfamate, 60 g / l of sodium gluconate, 3.2 g / l of sodium saccharin and sodium allyl sulfonate (36 %) 16 ml / l was added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 30 g / l and 8 g / l, respectively.
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル１５６ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄５０ｇ／ｌ、グルコン酸ナトリウム６０ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ３０ｇ／ｌおよび８ｇ／ｌであった。 Reference Example 1
Preparation of electroplating solutions for iron-nickel alloys:
In water, 156 g / l of nickel sulfamate, 30 g / l of boric acid, 7 g / l of nickel bromide, 50 g / l of iron sulfamate, 60 g / l of sodium gluconate, 3.2 g / l of sodium saccharin and sodium allyl sulfonate (36 %) 16 ml / l was added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 30 g / l and 8 g / l, respectively.
参 考 例 ２
鉄－ニッケル合金用電気メッキ液の調製：
水に、硫酸ニッケル７５ｇ／ｌ、塩化ニッケル５５ｇ／ｌ、ホウ酸４０ｇ／ｌ、硫酸第一鉄４０ｇ／ｌ、グルコン酸ナトリウム６０ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.０であり、ニッケルと鉄の含有量はそれぞれ３０ｇ／ｌおよび８ｇ／ｌであった。 Reference example 2
Preparation of electroplating solutions for iron-nickel alloys:
In water, 75 g / l of nickel sulfate, 55 g / l of nickel chloride, 40 g / l of boric acid, 40 g / l of ferrous sulfate, 60 g / l of sodium gluconate, 3.2 g / l of sodium saccharin and sodium allyl sulfonate (36% 16 ml / l was added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.0, and the contents of nickel and iron were 30 g / l and 8 g / l, respectively.
鉄－ニッケル合金用電気メッキ液の調製：
水に、硫酸ニッケル７５ｇ／ｌ、塩化ニッケル５５ｇ／ｌ、ホウ酸４０ｇ／ｌ、硫酸第一鉄４０ｇ／ｌ、グルコン酸ナトリウム６０ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.０であり、ニッケルと鉄の含有量はそれぞれ３０ｇ／ｌおよび８ｇ／ｌであった。 Reference example 2
Preparation of electroplating solutions for iron-nickel alloys:
In water, 75 g / l of nickel sulfate, 55 g / l of nickel chloride, 40 g / l of boric acid, 40 g / l of ferrous sulfate, 60 g / l of sodium gluconate, 3.2 g / l of sodium saccharin and sodium allyl sulfonate (36% 16 ml / l was added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.0, and the contents of nickel and iron were 30 g / l and 8 g / l, respectively.
参 考 例 ３
鉄－ニッケル合金電気メッキ皮膜の形成：
ポリイミド製の基板（１０×４０ｍｍ）に、アルカリ脱脂（４０℃、１０分）および酸活性（室温、３０秒）を行った後、参考例１で調製した鉄－ニッケル合金用電気メッキ液に以下の条件で浸漬して目標膜厚１０μｍで電気メッキをして鉄－ニッケル合金電気メッキ皮膜を得た。 Reference example 3
Formation of iron-nickel alloy electroplating film:
Alkali degreasing (40 ° C., 10 minutes) and acid activity (room temperature, 30 seconds) were applied to a polyimide substrate (10 × 40 mm), and then the electroplating solution for iron-nickel alloy prepared in Reference Example 1 was as follows. The steel plate was immersed under the following conditions and electroplated at a target film thickness of 10 μm to obtain an iron-nickel alloy electroplated film.
鉄－ニッケル合金電気メッキ皮膜の形成：
ポリイミド製の基板（１０×４０ｍｍ）に、アルカリ脱脂（４０℃、１０分）および酸活性（室温、３０秒）を行った後、参考例１で調製した鉄－ニッケル合金用電気メッキ液に以下の条件で浸漬して目標膜厚１０μｍで電気メッキをして鉄－ニッケル合金電気メッキ皮膜を得た。 Reference example 3
Formation of iron-nickel alloy electroplating film:
Alkali degreasing (40 ° C., 10 minutes) and acid activity (room temperature, 30 seconds) were applied to a polyimide substrate (10 × 40 mm), and then the electroplating solution for iron-nickel alloy prepared in Reference Example 1 was as follows. The steel plate was immersed under the following conditions and electroplated at a target film thickness of 10 μm to obtain an iron-nickel alloy electroplated film.
＜メッキ条件＞
メッキ時間：３０分
液温：５０℃
アノード：鉄、ニッケル
陰極電流密度：２Ａ／ｄｍ２
撹拌：パドル撹拌（３ｍ／ｍｉｎ） <Plating conditions>
Plating time: 30 minutes Liquid temperature: 50 ° C
Anode: iron, nickel cathode current density: 2A / dm 2
Stirring: Paddle stirring (3 m / min)
メッキ時間：３０分
液温：５０℃
アノード：鉄、ニッケル
陰極電流密度：２Ａ／ｄｍ２
撹拌：パドル撹拌（３ｍ／ｍｉｎ） <Plating conditions>
Plating time: 30 minutes Liquid temperature: 50 ° C
Anode: iron, nickel cathode current density: 2A / dm 2
Stirring: Paddle stirring (3 m / min)
参 考 例 ４
鉄－ニッケル合金電気メッキ皮膜の形成：
温度を４０℃とする以外は参考例３と同様にして電気メッキをして鉄－ニッケル合金電気メッキ皮膜を得た。 Reference example 4
Formation of iron-nickel alloy electroplating film:
Electroplating was performed in the same manner as in Reference Example 3 except that the temperature was set to 40 ° C., to obtain an iron-nickel alloy electroplated film.
鉄－ニッケル合金電気メッキ皮膜の形成：
温度を４０℃とする以外は参考例３と同様にして電気メッキをして鉄－ニッケル合金電気メッキ皮膜を得た。 Reference example 4
Formation of iron-nickel alloy electroplating film:
Electroplating was performed in the same manner as in Reference Example 3 except that the temperature was set to 40 ° C., to obtain an iron-nickel alloy electroplated film.
参 考 例 ５
鉄－ニッケル合金電気メッキ皮膜の形成：
撹拌を６ｍ／ｍｉｎ、温度を４０℃とする以外は参考例３と同様にして電気メッキをして鉄－ニッケル合金電気メッキ皮膜を得た。 Reference example 5
Formation of iron-nickel alloy electroplating film:
Electroplating was carried out in the same manner as in Reference Example 3 except that the stirring was 6 m / min and the temperature was 40 ° C., to obtain an iron-nickel alloy electroplated film.
鉄－ニッケル合金電気メッキ皮膜の形成：
撹拌を６ｍ／ｍｉｎ、温度を４０℃とする以外は参考例３と同様にして電気メッキをして鉄－ニッケル合金電気メッキ皮膜を得た。 Reference example 5
Formation of iron-nickel alloy electroplating film:
Electroplating was carried out in the same manner as in Reference Example 3 except that the stirring was 6 m / min and the temperature was 40 ° C., to obtain an iron-nickel alloy electroplated film.
参 考 例 ６
鉄－ニッケル合金電気メッキ皮膜の形成：
参考例２で調製した鉄－ニッケル合金用電気メッキ液を用い、温度を４０℃とする以外は参考例３と同様にして電気メッキをして鉄－ニッケル合金電気メッキ皮膜を得た。 Reference example 6
Formation of iron-nickel alloy electroplating film:
Using the electroplating solution for iron-nickel alloy prepared in Reference Example 2, electroplating was performed in the same manner as in Reference Example 3 except that the temperature was set to 40 ° C., to obtain an iron-nickel alloy electroplating film.
鉄－ニッケル合金電気メッキ皮膜の形成：
参考例２で調製した鉄－ニッケル合金用電気メッキ液を用い、温度を４０℃とする以外は参考例３と同様にして電気メッキをして鉄－ニッケル合金電気メッキ皮膜を得た。 Reference example 6
Formation of iron-nickel alloy electroplating film:
Using the electroplating solution for iron-nickel alloy prepared in Reference Example 2, electroplating was performed in the same manner as in Reference Example 3 except that the temperature was set to 40 ° C., to obtain an iron-nickel alloy electroplating film.
参 考 試 験 例 １
物性測定：
参考例３～６で得られたメッキ皮膜について、外観を目視で評価した後、スパイラル応力計（（株）山本鍍金試験器社製：スパイラル鍍金応力計）を用いて応力、マイクロメータ（（株）ミツトヨ社製）で延展性、マイクロビッカース硬度計（（株）明石製作所社製：荷重０.２５Ｎ）を用いて硬度を測定した。また、熱膨張係数を窒素雰囲気下、２５～２００℃の範囲で熱・応力・歪測定装置（エスアイアイ・ナノテクノロジー製：ＴＭＡ／ＳＳ ６１００：荷重５０ｍＮ：昇温速度５℃／ｍｉｎ）を用いて測定した。更に、皮膜中の鉄－ニッケルの質量比を蛍光Ｘ線分析法で求めた。これらの結果を表３に示した。 Reference Test Example 1
Physical property measurement:
The appearance of the plated film obtained in Reference Examples 3 to 6 was visually evaluated, and then a stress, a micrometer ((a stock was made using a spiral stress meter (a spiral plating stress meter made by Yamamoto Plating Tester)). Hardness was measured using a micro Vickers hardness tester (manufactured by Akashi MFG. Co., Ltd .: load: 0.25 N) with Mitutoyo Corporation). In addition, using a thermal stress and strain measuring device (made by SII Nano Technology: TMA / SS 6100: load 50 mN: heating rate 5 ° C./min) at a thermal expansion coefficient of 25 to 200 ° C. in a nitrogen atmosphere. Measured. Furthermore, the mass ratio of iron-nickel in the film was determined by X-ray fluorescence analysis. The results are shown in Table 3.
物性測定：
参考例３～６で得られたメッキ皮膜について、外観を目視で評価した後、スパイラル応力計（（株）山本鍍金試験器社製：スパイラル鍍金応力計）を用いて応力、マイクロメータ（（株）ミツトヨ社製）で延展性、マイクロビッカース硬度計（（株）明石製作所社製：荷重０.２５Ｎ）を用いて硬度を測定した。また、熱膨張係数を窒素雰囲気下、２５～２００℃の範囲で熱・応力・歪測定装置（エスアイアイ・ナノテクノロジー製：ＴＭＡ／ＳＳ ６１００：荷重５０ｍＮ：昇温速度５℃／ｍｉｎ）を用いて測定した。更に、皮膜中の鉄－ニッケルの質量比を蛍光Ｘ線分析法で求めた。これらの結果を表３に示した。 Reference Test Example 1
Physical property measurement:
The appearance of the plated film obtained in Reference Examples 3 to 6 was visually evaluated, and then a stress, a micrometer ((a stock was made using a spiral stress meter (a spiral plating stress meter made by Yamamoto Plating Tester)). Hardness was measured using a micro Vickers hardness tester (manufactured by Akashi MFG. Co., Ltd .: load: 0.25 N) with Mitutoyo Corporation). In addition, using a thermal stress and strain measuring device (made by SII Nano Technology: TMA / SS 6100: load 50 mN: heating rate 5 ° C./min) at a thermal expansion coefficient of 25 to 200 ° C. in a nitrogen atmosphere. Measured. Furthermore, the mass ratio of iron-nickel in the film was determined by X-ray fluorescence analysis. The results are shown in Table 3.
以上の結果より、上記メッキ液により、電気メッキだけで熱処理を行わなくても低熱膨張係数および高硬度を有する鉄－ニッケル合金皮膜が得られることがわかった。また、低熱膨張係数が得られる鉄－ニッケル合金の組成は鉄５８％およびニッケル４２％付近にあることがわかった。
From the above results, it was found that an iron-nickel alloy film having a low thermal expansion coefficient and high hardness can be obtained by the above plating solution without performing heat treatment only by electroplating. Also, it was found that the composition of the iron-nickel alloy which can obtain a low thermal expansion coefficient is around 58% iron and 42% nickel.
参 考 比 較 例 １
比較メッキ：
アリルスルホン酸ナトリウム（３６％）を含まない以外は、参考例２と同様に鉄－ニッケル合金用電気メッキ液を調製し、これを用いて参考例６と同様の条件で鉄－ニッケル合金電気メッキ皮膜を得た。なお、皮膜の外観は均一ではなかった。得られた皮膜について試験例１と同様にして皮膜中の鉄－ニッケルの質量比と、熱膨張係数（／℃）を測定した。その結果、鉄－ニッケルの質量比は鉄６４％およびニッケル３６％であり、２５～２００℃の熱膨張係数（／℃）は８.６×１０－６／℃であった。 Reference Comparison Example 1
Comparison plating:
An electroplating solution for iron-nickel alloy was prepared in the same manner as in Reference Example 2 except that sodium allyl sulfonate (36%) was not contained, and using this, electroplating of iron-nickel alloy was performed under the same conditions as in Reference Example 6. I got a film. The appearance of the film was not uniform. The mass ratio of iron-nickel in the film and the thermal expansion coefficient (/ ° C.) were measured in the same manner as in Test Example 1 for the obtained film. As a result, the mass ratio of iron-nickel was 64% of iron and 36% of nickel, and the thermal expansion coefficient (/ ° C.) at 25 to 200 ° C. was 8.6 × 10 −6 / ° C.
比較メッキ：
アリルスルホン酸ナトリウム（３６％）を含まない以外は、参考例２と同様に鉄－ニッケル合金用電気メッキ液を調製し、これを用いて参考例６と同様の条件で鉄－ニッケル合金電気メッキ皮膜を得た。なお、皮膜の外観は均一ではなかった。得られた皮膜について試験例１と同様にして皮膜中の鉄－ニッケルの質量比と、熱膨張係数（／℃）を測定した。その結果、鉄－ニッケルの質量比は鉄６４％およびニッケル３６％であり、２５～２００℃の熱膨張係数（／℃）は８.６×１０－６／℃であった。 Reference Comparison Example 1
Comparison plating:
An electroplating solution for iron-nickel alloy was prepared in the same manner as in Reference Example 2 except that sodium allyl sulfonate (36%) was not contained, and using this, electroplating of iron-nickel alloy was performed under the same conditions as in Reference Example 6. I got a film. The appearance of the film was not uniform. The mass ratio of iron-nickel in the film and the thermal expansion coefficient (/ ° C.) were measured in the same manner as in Test Example 1 for the obtained film. As a result, the mass ratio of iron-nickel was 64% of iron and 36% of nickel, and the thermal expansion coefficient (/ ° C.) at 25 to 200 ° C. was 8.6 × 10 −6 / ° C.
参 考 例 ７
鉄－ニッケル合金電気メッキ皮膜の形成：
アリルスルホン酸ナトリウム（３６％）をビニルスルホン酸とする以外は、参考例２と同様に鉄－ニッケル合金用電気メッキ液を調製し、これを用いて参考例６と同様の条件で鉄－ニッケル合金電気メッキ皮膜を得た。均一な皮膜外観が得られ、鉄－ニッケルの質量比は鉄５５およびニッケル４５％であった。この皮膜は低熱膨張係数および高硬度を有する。 Reference example 7
Formation of iron-nickel alloy electroplating film:
An electroplating solution for an iron-nickel alloy was prepared in the same manner as in Reference Example 2 except that sodium allyl sulfonate (36%) was changed to vinyl sulfonic acid, and using this, iron-nickel under the same conditions as in Reference Example 6. An alloy electroplated film was obtained. A uniform film appearance was obtained, and the iron-nickel mass ratio was 55% iron and 45% nickel. The coating has a low coefficient of thermal expansion and high hardness.
鉄－ニッケル合金電気メッキ皮膜の形成：
アリルスルホン酸ナトリウム（３６％）をビニルスルホン酸とする以外は、参考例２と同様に鉄－ニッケル合金用電気メッキ液を調製し、これを用いて参考例６と同様の条件で鉄－ニッケル合金電気メッキ皮膜を得た。均一な皮膜外観が得られ、鉄－ニッケルの質量比は鉄５５およびニッケル４５％であった。この皮膜は低熱膨張係数および高硬度を有する。 Reference example 7
Formation of iron-nickel alloy electroplating film:
An electroplating solution for an iron-nickel alloy was prepared in the same manner as in Reference Example 2 except that sodium allyl sulfonate (36%) was changed to vinyl sulfonic acid, and using this, iron-nickel under the same conditions as in Reference Example 6. An alloy electroplated film was obtained. A uniform film appearance was obtained, and the iron-nickel mass ratio was 55% iron and 45% nickel. The coating has a low coefficient of thermal expansion and high hardness.
参 考 例 ８
鉄－ニッケル合金電気メッキ皮膜の形成：
アリルスルホン酸ナトリウム（３６％）をプロピンスルホン酸とする以外は、参考例２と同様に鉄－ニッケル合金用電気メッキ液を調製し、これを用いて参考例６と同様の条件で鉄－ニッケル合金電気メッキ皮膜を得た。得られた皮膜の鉄－ニッケルの質量比は鉄６２％およびニッケル３８％であった。この皮膜は低熱膨張係数および高硬度を有する。 Reference Example 8
Formation of iron-nickel alloy electroplating film:
An electroplating solution for an iron-nickel alloy was prepared in the same manner as in Reference Example 2 except that sodium allyl sulfonate (36%) was used as propyne sulfonic acid, and iron was used under the same conditions as in Reference Example 6 using this. A nickel alloy electroplated film was obtained. The iron-nickel mass ratio of the obtained film was 62% iron and 38% nickel. The coating has a low coefficient of thermal expansion and high hardness.
鉄－ニッケル合金電気メッキ皮膜の形成：
アリルスルホン酸ナトリウム（３６％）をプロピンスルホン酸とする以外は、参考例２と同様に鉄－ニッケル合金用電気メッキ液を調製し、これを用いて参考例６と同様の条件で鉄－ニッケル合金電気メッキ皮膜を得た。得られた皮膜の鉄－ニッケルの質量比は鉄６２％およびニッケル３８％であった。この皮膜は低熱膨張係数および高硬度を有する。 Reference Example 8
Formation of iron-nickel alloy electroplating film:
An electroplating solution for an iron-nickel alloy was prepared in the same manner as in Reference Example 2 except that sodium allyl sulfonate (36%) was used as propyne sulfonic acid, and iron was used under the same conditions as in Reference Example 6 using this. A nickel alloy electroplated film was obtained. The iron-nickel mass ratio of the obtained film was 62% iron and 38% nickel. The coating has a low coefficient of thermal expansion and high hardness.
参 考 例 ９
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル２７０ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄８７ｇ／ｌ、グルコン酸ナトリウム１００ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ５０．７ｇ／ｌおよび１３．７ｇ／ｌであった。 Reference Example 9
Preparation of electroplating solutions for iron-nickel alloys:
In water, 270 g / l nickel sulfamate, 30 g / l boric acid, 7 g / l nickel bromide, 87 g / l iron sulfamate, 100 g / l sodium gluconate, 3.2 g / l sodium saccharin and sodium allyl sulfonate (36 %) 16 ml / l was added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 13.7 g / l, respectively.
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル２７０ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄８７ｇ／ｌ、グルコン酸ナトリウム１００ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ５０．７ｇ／ｌおよび１３．７ｇ／ｌであった。 Reference Example 9
Preparation of electroplating solutions for iron-nickel alloys:
In water, 270 g / l nickel sulfamate, 30 g / l boric acid, 7 g / l nickel bromide, 87 g / l iron sulfamate, 100 g / l sodium gluconate, 3.2 g / l sodium saccharin and sodium allyl sulfonate (36 %) 16 ml / l was added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 13.7 g / l, respectively.
参 考 例 １０
鉄－ニッケル合金電気メッキ皮膜の形成：
銅板（６０×８０ｍｍ）に、アルカリ脱脂（５５℃、１０分）および酸活性（室温、３０秒）を行った後、参考例９で調製した鉄－ニッケル合金用電気メッキ液に以下の条件で浸漬して目標膜厚１０μｍで電気メッキをして鉄－ニッケル合金電気メッキ皮膜を得た。 Reference Example 10
Formation of iron-nickel alloy electroplating film:
After performing alkaline degreasing (55 ° C., 10 minutes) and acid activity (room temperature, 30 seconds) on a copper plate (60 × 80 mm), the electroplating solution for iron-nickel alloy prepared in Reference Example 9 is prepared under the following conditions It was immersed and electroplated to a target film thickness of 10 μm to obtain an iron-nickel alloy electroplated film.
鉄－ニッケル合金電気メッキ皮膜の形成：
銅板（６０×８０ｍｍ）に、アルカリ脱脂（５５℃、１０分）および酸活性（室温、３０秒）を行った後、参考例９で調製した鉄－ニッケル合金用電気メッキ液に以下の条件で浸漬して目標膜厚１０μｍで電気メッキをして鉄－ニッケル合金電気メッキ皮膜を得た。 Reference Example 10
Formation of iron-nickel alloy electroplating film:
After performing alkaline degreasing (55 ° C., 10 minutes) and acid activity (room temperature, 30 seconds) on a copper plate (60 × 80 mm), the electroplating solution for iron-nickel alloy prepared in Reference Example 9 is prepared under the following conditions It was immersed and electroplated to a target film thickness of 10 μm to obtain an iron-nickel alloy electroplated film.
＜メッキ条件＞
メッキ時間：６０分
液温：４５℃
アノード：鉄、ニッケル
陰極電流密度：１Ａ／ｄｍ２
撹拌：パドル撹拌（３ｍ／ｍｉｎ） <Plating conditions>
Plating time: 60 minutes Liquid temperature: 45 ° C
Anode: iron, nickel cathode current density: 1A / dm 2
Stirring: Paddle stirring (3 m / min)
メッキ時間：６０分
液温：４５℃
アノード：鉄、ニッケル
陰極電流密度：１Ａ／ｄｍ２
撹拌：パドル撹拌（３ｍ／ｍｉｎ） <Plating conditions>
Plating time: 60 minutes Liquid temperature: 45 ° C
Anode: iron, nickel cathode current density: 1A / dm 2
Stirring: Paddle stirring (3 m / min)
参 考 例 １１
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル２７０ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄７６．５ｇ／ｌ、グルコン酸ナトリウム１００ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ５０．７ｇ／ｌおよび１２．０ｇ／ｌであった。 Reference Example 11
Preparation of electroplating solutions for iron-nickel alloys:
In water, 270 g / l nickel sulfamate, 30 g / l boric acid, 7 g / l nickel bromide, 76.5 g / l iron sulfamate, 100 g / l sodium gluconate, 3.2 g / l sodium saccharin and sodium allyl sulfonate (36%) 16 ml / l was added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 12.0 g / l, respectively.
鉄－ニッケル合金用電気メッキ液の調製：
水に、スルファミン酸ニッケル２７０ｇ／ｌ、ホウ酸３０ｇ／ｌ、臭化ニッケル７ｇ／ｌ、スルファミン酸鉄７６．５ｇ／ｌ、グルコン酸ナトリウム１００ｇ／ｌ、サッカリンナトリウム３.２ｇ／ｌおよびアリルスルホン酸ナトリウム（３６％）１６ｍｌ／ｌを添加、混合し、鉄－ニッケル合金用電気メッキ液を調製した。このメッキ液のｐＨは３.８であり、ニッケルと鉄の含有量はそれぞれ５０．７ｇ／ｌおよび１２．０ｇ／ｌであった。 Reference Example 11
Preparation of electroplating solutions for iron-nickel alloys:
In water, 270 g / l nickel sulfamate, 30 g / l boric acid, 7 g / l nickel bromide, 76.5 g / l iron sulfamate, 100 g / l sodium gluconate, 3.2 g / l sodium saccharin and sodium allyl sulfonate (36%) 16 ml / l was added and mixed to prepare an electroplating solution for iron-nickel alloy. The pH of this plating solution was 3.8, and the contents of nickel and iron were 50.7 g / l and 12.0 g / l, respectively.
参 考 例 １２
鉄－ニッケル合金電気メッキ皮膜の形成：
銅板（６０×８０ｍｍ）に、アルカリ脱脂（５５℃、１０分）および酸活性（室温、３０秒）を行った後、参考例９で調製した鉄－ニッケル合金用電気メッキ液に以下の条件で浸漬して目標膜厚１０μｍで電気メッキをして鉄－ニッケル合金電気メッキ皮膜を得た。 Reference example 12
Formation of iron-nickel alloy electroplating film:
After performing alkaline degreasing (55 ° C., 10 minutes) and acid activity (room temperature, 30 seconds) on a copper plate (60 × 80 mm), the electroplating solution for iron-nickel alloy prepared in Reference Example 9 is prepared under the following conditions It was immersed and electroplated to a target film thickness of 10 μm to obtain an iron-nickel alloy electroplated film.
鉄－ニッケル合金電気メッキ皮膜の形成：
銅板（６０×８０ｍｍ）に、アルカリ脱脂（５５℃、１０分）および酸活性（室温、３０秒）を行った後、参考例９で調製した鉄－ニッケル合金用電気メッキ液に以下の条件で浸漬して目標膜厚１０μｍで電気メッキをして鉄－ニッケル合金電気メッキ皮膜を得た。 Reference example 12
Formation of iron-nickel alloy electroplating film:
After performing alkaline degreasing (55 ° C., 10 minutes) and acid activity (room temperature, 30 seconds) on a copper plate (60 × 80 mm), the electroplating solution for iron-nickel alloy prepared in Reference Example 9 is prepared under the following conditions It was immersed and electroplated to a target film thickness of 10 μm to obtain an iron-nickel alloy electroplated film.
＜メッキ条件＞
メッキ時間：６０分
液温：３０℃
アノード：鉄、ニッケル
陰極電流密度：１Ａ／ｄｍ２
撹拌：パドル撹拌（３ｍ／ｍｉｎ） <Plating conditions>
Plating time: 60 minutes Liquid temperature: 30 ° C
Anode: iron, nickel cathode current density: 1A / dm 2
Stirring: Paddle stirring (3 m / min)
メッキ時間：６０分
液温：３０℃
アノード：鉄、ニッケル
陰極電流密度：１Ａ／ｄｍ２
撹拌：パドル撹拌（３ｍ／ｍｉｎ） <Plating conditions>
Plating time: 60 minutes Liquid temperature: 30 ° C
Anode: iron, nickel cathode current density: 1A / dm 2
Stirring: Paddle stirring (3 m / min)
参 考 試 験 例 ２
物性測定：
参考例９、１１で得られたメッキ皮膜について、外観を目視で評価した後、熱膨張係数を窒素雰囲気下、表４に記載の範囲で熱・応力・歪測定装置（エスアイアイ・ナノテクノロジー製：ＴＭＡ／ＳＳ ６１００：荷重５０ｍＮ：昇温速度５℃／ｍｉｎ）を用いて測定した。また、皮膜組成の均一性をＸＲＦで調べ、これまでと同様の評価基準で評価した。これらの結果を表４に示した。 Reference test example 2
Physical property measurement:
The appearances of the plated films obtained in Reference Examples 9 and 11 were visually evaluated, and then the thermal expansion coefficient was measured in a nitrogen atmosphere in the range described in Table 4 using a thermal, stress, and strain measuring device (manufactured by SII Nano Technology) : TMA / SS 6100: Load 50 mN: Temperature rise rate was measured using 5 ° C./min). Also, the uniformity of the film composition was examined by XRF and evaluated by the same evaluation criteria as before. These results are shown in Table 4.
物性測定：
参考例９、１１で得られたメッキ皮膜について、外観を目視で評価した後、熱膨張係数を窒素雰囲気下、表４に記載の範囲で熱・応力・歪測定装置（エスアイアイ・ナノテクノロジー製：ＴＭＡ／ＳＳ ６１００：荷重５０ｍＮ：昇温速度５℃／ｍｉｎ）を用いて測定した。また、皮膜組成の均一性をＸＲＦで調べ、これまでと同様の評価基準で評価した。これらの結果を表４に示した。 Reference test example 2
Physical property measurement:
The appearances of the plated films obtained in Reference Examples 9 and 11 were visually evaluated, and then the thermal expansion coefficient was measured in a nitrogen atmosphere in the range described in Table 4 using a thermal, stress, and strain measuring device (manufactured by SII Nano Technology) : TMA / SS 6100: Load 50 mN: Temperature rise rate was measured using 5 ° C./min). Also, the uniformity of the film composition was examined by XRF and evaluated by the same evaluation criteria as before. These results are shown in Table 4.
本発明は、溶製で製造されるインバー組成の鉄－ニッケル合金と同様な用途に用いることができるのは勿論のこと、パワーエレクトロニクス等の新たな用途への応用が期待できる。
以 上 The present invention is expected to be applicable to new applications such as power electronics, as well as to be used for the same applications as the iron-nickel alloy of invar composition manufactured by melting.
that's all
以 上 The present invention is expected to be applicable to new applications such as power electronics, as well as to be used for the same applications as the iron-nickel alloy of invar composition manufactured by melting.
that's all
Claims (19)
- 以下の一般式（１）
で表される不飽和スルホン酸化合物を含有する鉄－ニッケル合金用電気メッキ液であって、
更に、カルボキシル基を１つ以上、ヒドロキシ基を２つ以上有し、炭素数が２つ以上であるカルボン酸化合物を２種以上含有することを特徴とする低熱膨張係数を有する鉄－ニッケル合金用電気メッキ液。 The following general formula (1)
And an electroplating solution for an iron-nickel alloy containing the unsaturated sulfonic acid compound represented by
Furthermore, for an iron-nickel alloy having a low thermal expansion coefficient characterized by containing two or more kinds of carboxylic acid compounds having one or more carboxyl groups and two or more hydroxy groups and having two or more carbon atoms. Electroplating solution. - カルボン酸化合物が、酒石酸ナトリウムおよびグルコン酸ナトリウムである請求項１記載の低熱膨張係数を有する鉄－ニッケル合金用電気メッキ液。 The electroplating solution for iron-nickel alloys with low thermal expansion coefficient according to claim 1, wherein the carboxylic acid compounds are sodium tartrate and sodium gluconate.
- 酒石酸ナトリウムを１０～８０ｇ／ｌ含有するものである請求項２記載の低熱膨張係数を有する鉄－ニッケル合金用電気メッキ液。 The electroplating solution for iron-nickel alloys with low thermal expansion coefficient according to claim 2, which contains 10 to 80 g / l of sodium tartrate.
- 不飽和スルホン酸化合物が、アリルスルホン酸ナトリウム、ビニルスルホン酸ナトリウムおよびプロピンスルホン酸ナトリウムからなる群から選ばれる１種または２種以上である請求項１～３の何れかに記載の低熱膨張係数を有する鉄－ニッケル合金用電気メッキ液。 The low thermal expansion coefficient according to any one of claims 1 to 3, wherein the unsaturated sulfonic acid compound is one or more selected from the group consisting of sodium allyl sulfonate, sodium vinyl sulfonate and sodium propyne sulfonate. Electroplating solution for iron-nickel alloy having.
- 鉄を５～２０ｇ／ｌおよびニッケルを３０～７０ｇ／ｌ含有するものである請求項１～４の何れかに記載の低熱膨張係数を有する鉄－ニッケル合金用電気メッキ液。 5. The electroplating solution for iron-nickel alloys with low thermal expansion coefficient according to any one of claims 1 to 4, which contains 5 to 20 g / l of iron and 30 to 70 g / l of nickel.
- 鉄－ニッケル合金用電気メッキ液が、ワット液またはスルファミン酸液である請求項１～５の何れかに記載の低熱膨張係数を有する鉄－ニッケル合金用電気メッキ液。 The electroplating solution for iron-nickel alloys having a low thermal expansion coefficient according to any one of claims 1 to 5, wherein the electroplating solution for iron-nickel alloys is a watt solution or a sulfamic acid solution.
- 低熱膨張係数を有する鉄－ニッケル合金が、鉄とニッケルの比率が両者の合計量を１００質量％として、鉄が５５～７０質量％およびニッケルが３０～４５質量％であり、２５～４００℃の範囲で測定される熱膨張係数が４.５×１０－６／℃以下である請求項１～６の何れかに記載の低熱膨張係数を有する鉄－ニッケル合金用電気メッキ液。 An iron-nickel alloy having a low thermal expansion coefficient has a ratio of iron and nickel of 55 to 70% by mass of iron and 30 to 45% by mass of nickel at a total content of 100% by mass, 25 to 400 ° C. The electroplating liquid for iron-nickel alloys with a low thermal expansion coefficient according to any one of claims 1 to 6, wherein the thermal expansion coefficient measured in the range is 4.5 × 10 -6 / ° C or less.
- 被メッキ物を、請求項１～７の何れかに記載の低熱膨張係数を有する鉄－ニッケル合金用電気メッキ液で電気メッキすることを特徴とする低熱膨張係数を有する鉄－ニッケル合金の電気メッキ方法。 Electroplating of an iron-nickel alloy having a low thermal expansion coefficient characterized in that an object to be plated is electroplated with the electroplating solution for an iron-nickel alloy having a low thermal expansion coefficient according to any one of claims 1 to 7 Method.
- 電気メッキを、撹拌して浴温２０～６０℃でアノードに鉄、ニッケルを併用し、陰極電流密度０．５～３Ａ／ｄｍ２で行う請求項８記載の低熱膨張係数を有する鉄－ニッケル合金の電気メッキ方法。 Electroplating, stirred iron anode at a bath temperature 20 ~ 60 ° C., the combination of nickel, iron having a low thermal expansion coefficient as claimed in claim 8, wherein performing at cathode current density 0.5 ~ 3A / dm 2 - nickel alloy Electroplating method.
- 被メッキ物を、請求項１～７の何れかに記載の低熱膨張係数を有する鉄－ニッケル合金用電気メッキ液で電気メッキすることにより得られる低熱膨張係数を有する鉄－ニッケル合金メッキ被覆製品。 An iron-nickel alloy plated product having a low thermal expansion coefficient obtained by electroplating a material to be plated with the electroplating solution for an iron-nickel alloy having a low thermal expansion coefficient according to any one of claims 1 to 7.
- 鉄－ニッケル合金用電気メッキ浴に、更に、以下の一般式（１）
で表される不飽和スルホン酸化合物を含有させたことを特徴とする低熱膨張係数および高硬度を有する鉄－ニッケル合金用電気メッキ浴。 In addition to the electroplating bath for iron-nickel alloys, the following general formula (1)
An electroplating bath for an iron-nickel alloy having a low thermal expansion coefficient and a high hardness, characterized by containing the unsaturated sulfonic acid compound represented by - 不飽和スルホン酸化合物が、アリルスルホン酸ナトリウム、ビニルスルホン酸ナトリウムおよびプロピンスルホン酸ナトリウムからなる群から選ばれる１種または２種以上である請求項１１記載の低熱膨張係数および高硬度を有する鉄－ニッケル合金用電気メッキ浴。 The iron having a low thermal expansion coefficient and high hardness according to claim 11, wherein the unsaturated sulfonic acid compound is one or more selected from the group consisting of sodium allyl sulfonate, sodium vinyl sulfonate and sodium propyne sulfonate. -Electroplating bath for nickel alloy.
- 鉄を４～２０ｇ／ｌおよびニッケルを２０～７０ｇ／ｌ含有するものである請求項１１または１２記載の低熱膨張係数および高硬度を有する鉄－ニッケル合金用電気メッキ浴。 The electroplating bath for iron-nickel alloys with low thermal expansion coefficient and high hardness according to claim 11 or 12, which contains 4 to 20 g / l of iron and 20 to 70 g / l of nickel.
- 鉄－ニッケル合金用電気メッキ浴が、ワット浴またはスルファミン酸浴である請求項１１～１３の何れかに記載の低熱膨張係数および高硬度を有する鉄－ニッケル合金用電気メッキ浴。 The electroplating bath for iron-nickel alloys with a low thermal expansion coefficient and high hardness according to any of claims 11 to 13, wherein the electroplating bath for iron-nickel alloys is a Watts bath or a sulfamic acid bath.
- 低熱膨張係数および高硬度を有する鉄－ニッケル合金が、鉄とニッケルの比率が両者の合計量を１００質量％として、鉄が５５～６４質量％およびニッケルが３６～４５質量％であり、熱膨張係数が９.０×１０－６／℃以下であり、ビッカース硬度が２００ＨＶ以上である請求項１１～１４の何れかに記載の低熱膨張係数および高硬度を有する鉄－ニッケル合金用電気メッキ浴。 Iron-nickel alloy with low thermal expansion coefficient and high hardness, the ratio of iron and nickel is 55 to 64% by mass of iron and 36 to 45% by mass of nickel with the total amount of both being 100% by mass, and thermal expansion The electroplating bath for iron-nickel alloys having a low thermal expansion coefficient and a high hardness according to any one of claims 11 to 14, wherein the coefficient is not more than 9.0 × 10 -6 / ° C. and the Vickers hardness is not less than 200 HV.
- 被メッキ物を、請求項１１～１５の何れかに記載の低熱膨張係数および高硬度を有する鉄－ニッケル合金用電気メッキ浴で電気メッキすることを特徴とする低熱膨張係数および高硬度を有する鉄－ニッケル合金の電気メッキ方法。 An iron having a low thermal expansion coefficient and a high hardness, characterized in that an object to be plated is electroplated in an electroplating bath for an iron-nickel alloy having a low thermal expansion coefficient and a high hardness according to any one of claims 11 to 15. -Method of electroplating nickel alloy.
- 電気メッキ後に、熱処理を行わない請求項１６記載の低熱膨張係数および高硬度を有する鉄－ニッケル合金の電気メッキ方法。 The method of electroplating an iron-nickel alloy with low thermal expansion coefficient and high hardness according to claim 16, wherein heat treatment is not performed after electroplating.
- 被メッキ物を、請求項１１～１５の何れかに記載の低熱膨張係数および高硬度を有する鉄－ニッケル合金用電気メッキ浴で電気メッキすることにより得られる低熱膨張係数および高硬度を有する鉄－ニッケル合金メッキ被覆製品。 Iron having a low thermal expansion coefficient and high hardness obtained by electroplating an object to be plated with an electroplating bath for an iron-nickel alloy having a low thermal expansion coefficient and high hardness according to any one of claims 11 to 15 Nickel alloy plated coated products.
- 電気メッキ後に、熱処理を行わない請求項１８記載の低熱膨張係数および高硬度を有する鉄－ニッケル合金メッキ被覆製品。 An iron-nickel alloy plated article having a low coefficient of thermal expansion and high hardness according to claim 18, wherein no heat treatment is performed after electroplating.
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| JPS51117932A (en) * | 1975-03-31 | 1976-10-16 | Oxy Metal Industries Corp | Bright nickelliron electrodeposition bath and method of electrodeposition |
| JP2006524292A (en) * | 2003-04-24 | 2006-10-26 | ナノインバー カンパニー リミテッド | Nanoinvar alloy and method for producing the same |
| JP6084899B2 (en) * | 2013-06-07 | 2017-02-22 | 株式会社Ｊｃｕ | Electroplating bath for iron-nickel alloy having low thermal expansion coefficient and high hardness, and electroplating method using the same |
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| JP5478292B2 (en) | 2010-02-18 | 2014-04-23 | 京都市 | Method for producing iron-nickel alloy plating film having high hardness and low thermal expansion coefficient |
| DE102010055968A1 (en) * | 2010-12-23 | 2012-06-28 | Coventya Spa | Substrate with corrosion-resistant coating and process for its preparation |
| TWI580822B (en) * | 2012-04-19 | 2017-05-01 | 迪普索股份有限公司 | Copper-nickel alloy electroplating bath and electroplating method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS51117932A (en) * | 1975-03-31 | 1976-10-16 | Oxy Metal Industries Corp | Bright nickelliron electrodeposition bath and method of electrodeposition |
| JP2006524292A (en) * | 2003-04-24 | 2006-10-26 | ナノインバー カンパニー リミテッド | Nanoinvar alloy and method for producing the same |
| JP6084899B2 (en) * | 2013-06-07 | 2017-02-22 | 株式会社Ｊｃｕ | Electroplating bath for iron-nickel alloy having low thermal expansion coefficient and high hardness, and electroplating method using the same |
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