WO1998012362A1 - Solution de post-traitement de feuille de plaque d'acier presentant une soudabilite amelioree, plaque post-traitee et procede de production - Google Patents

Solution de post-traitement de feuille de plaque d'acier presentant une soudabilite amelioree, plaque post-traitee et procede de production Download PDF

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Publication number
WO1998012362A1
WO1998012362A1 PCT/JP1997/003313 JP9703313W WO9812362A1 WO 1998012362 A1 WO1998012362 A1 WO 1998012362A1 JP 9703313 W JP9703313 W JP 9703313W WO 9812362 A1 WO9812362 A1 WO 9812362A1
Authority
WO
WIPO (PCT)
Prior art keywords
post
plated steel
steel sheet
treatment
resin
Prior art date
Application number
PCT/JP1997/003313
Other languages
English (en)
Japanese (ja)
Inventor
Masahiro Kai
Jun-Ichi Fujimoto
Masanori Yoshikawa
Yoshiyuki Sugimoto
Original Assignee
Toyo Kohan Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyo Kohan Co., Ltd. filed Critical Toyo Kohan Co., Ltd.
Priority to JP51451998A priority Critical patent/JP3502393B2/ja
Priority to AU43190/97A priority patent/AU4319097A/en
Publication of WO1998012362A1 publication Critical patent/WO1998012362A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints

Definitions

  • the present invention relates to post-treatment of a steel sheet for solder, and relates to a post-treatment liquid, a post-treatment plate, and a method for producing the same, which improve the wettability, aging, and corrosion resistance of solder.
  • tinned steel, lead-tinned steel, copper-plated steel, and zinc-plated steel that can be soldered change their appearance when exposed to the environment in which they are used, and are red. ⁇ occurs. Therefore, there is a need for a post-treatment method for a plated steel sheet to suppress a decrease in solderability due to the growth of an oxide film over time.
  • the use of highly corrosive, active fluxes containing chlorine tends to be refused in order to prevent the deterioration of corrosion resistance of substrates and the like. Even when used, a material with excellent solder wettability is required.
  • a plated steel sheet having a soldering property on one side and an electrical insulating property on the other side such as a liquid crystal frame.
  • a method of imparting electrical insulation to a plated steel sheet there is a method in which a film made of a vinyl chloride resin, a polyester resin, a polypropylene resin, a polyethylene resin, or the like is coated on the steel sheet. When these resin films are coated on a plated steel sheet, 180 to 250. The sheet must be heated to C. Even in this case, if the other side of the plated steel sheet is still plated, solderability and corrosion resistance are poor.
  • the present invention has excellent solder wettability even when a flux containing no chlorine is used on one side of a plated steel sheet, and the wettability of the solder does not deteriorate over time or even when heated.
  • the present invention provides a post-treatment liquid for a plated steel sheet comprising an aqueous acryl resin having an acid value of 150 or less, or
  • the anti-reflective pigment is characterized in that it is any one of ammonium chromate, sodium chromate, and barium metaborate.
  • the present invention also provides a post-treated plate obtained by applying the above-mentioned post-treatment solution to a plated steel sheet so that the dry thickness is 0.05 to 2 m.
  • the present invention provides a post-treated plate in which one side of a plated steel sheet is coated with the above-mentioned post-treatment liquid so that the dry thickness becomes 0.05 to 2 ⁇ m, and the other side is coated with a resin film. Is also an object of the invention.
  • the present invention also relates to a method for manufacturing a post-treated plate, characterized in that the above-mentioned post-treatment liquid is applied to a plated steel sheet so as to have a dry thickness of 0.05 to 2 m and dried. I do.
  • the above-mentioned post-treatment liquid is applied to one side of the plated steel sheet so as to have a dry thickness of 0.05 to 2 and dried, and then the other side is coated with a resin film.
  • a method of manufacturing a post-processed plate characterized by the above is also an object of the invention.
  • FIG. 1 shows the acid value of the aqueous acryl resin contained in the post-treatment liquid of the present invention and the solder wetting. It is a figure which shows the relationship with sex. BEST MODE FOR CARRYING OUT THE INVENTION
  • a post-treatment liquid containing an aqueous acryl resin having an acid value of 150 or less as a main component is applied to a plated steel sheet so as to have a dry thickness of 0.05 to 2 m and dried.
  • a method of manufacturing the same and a steel sheet in which one side of a plated steel sheet is subjected to the above-mentioned post-treatment and the other side is coated with a resin film having electrical insulating properties, and a method of manufacturing the same.
  • the treated plated steel sheet has excellent solderability even when chlorine-free flux is used, does not deteriorate the solder wettability even after aging or heating, and also has excellent corrosion resistance.
  • the aqueous acryl resin is a polymer or copolymer of an acryl monomer having a carboxylic acid, and does not particularly limit a polymerization method such as aqueous solution polymerization and emulsion polymerization.
  • the acid value number of milligrams of potassium hydroxide required to neutralize the free fatty acid contained in 1 g of the resin
  • the acid value of the water-based acrylic resin greatly affects the solder wettability, which is a particularly important property in the present invention.
  • the wettability is inferior, on the other hand, when it is less than 150, the inventors have found that the solder wettability is remarkably excellent and arrived at the present invention.
  • an anti-pigment pigment When corrosion resistance is particularly required, an anti-pigment pigment must be added to the acrylic resin. However, in this case, although corrosion resistance is improved, there is a disadvantage that solder wettability is reduced.
  • the present inventors have found that the addition of a water-soluble rosin to an acrylic resin improves solder wettability again. At that time, since the viscosity increases, it is necessary to limit the amount of the acrylic resin to be added. The added amount is preferably from 100 to 600 g Z1. If it is less than 100 g Zl, there is no effect of improving the solderability and the corrosion resistance is reduced. On the other hand, when the amount exceeds 600 g Zl, the effect of improving the solderability is saturated, and when mixed with a water-soluble resin, the viscosity increases, and gelation may occur, which is not preferable.
  • Waterproof pigments include ammonium chromate, sodium chromate, and barium metaborate , Ammonium dichromate, sodium dichromate, potassium dichromate, etc. It is preferably one of barium.
  • the added amount is preferably 1 to 30 g / 1. If it is less than 1 g1, there is no effect of improving the corrosion resistance, and if it exceeds 3 Og, the effect of improving the corrosion resistance is saturated, the solderability is remarkably reduced, the viscosity is increased, and gelation may occur. • Addition of anti-pigment to acrylic resin reduces solder wettability. However, we have found that the addition of water-soluble rosin significantly improves solder wettability.
  • the water-solubilized mouth gin is obtained by a method of neutralizing the sulfonic acid group in the abietic acid molecule, which is a main component of the mouth gin, with an amine salt or the like to obtain rosin stone.
  • the added amount is preferably 1 to 100 g Z1. If it is less than 1 g / 1, there is no effect of improving the solderability, and if it exceeds 100 g Z1, the film becomes sticky and the film formability and corrosion resistance are poor.
  • a crosslinking agent may be added in order to improve solvent resistance and fingerprint resistance.
  • the cross-linking agent include an epoxy group, an aziridine group, a carbodiimide group, an isocyanate group, a compound containing a polyvalent hydroxyl group, and an amino resin, and any of them may be used.
  • the addition amount is preferably from 1 to 30 g / 1. If it is less than 1 g / 1, there is no effect of improving the solvent resistance and fingerprint resistance, and if it exceeds 30 g Z1, the processing solution may solidify over time.
  • the pH of the post-treatment solution is suitably in the range of 3 to 10. If it is less than 3, the stability of the treatment liquid is poor, and if it exceeds 10, the drying property of the treated film is poor.
  • the post-treatment liquid obtained as described above is applied to one or both sides of a steel sheet.
  • the application method is not particularly limited, such as an immersion method, a roll coating method, a curtain flow coating method, and a spray coating method.
  • immersion method e.g., a roll coating method
  • curtain flow coating method e.g., a curtain flow coating method
  • spray coating method e.g., a spray coating method
  • the post-treatment liquid is applied so that the film thickness after drying is 0.05 to 2 m.
  • the coated steel sheet to which the post-treatment solution is applied is heated and dried at a temperature of 50 to 250 ° C. to evaporate moisture in order to form a post-treatment film.
  • the drying temperature 50 to 15 CTC is sufficient if it is only necessary to evaporate the water.
  • the corrosion resistance is slightly inferior. If the thickness of the film is less than 0.05 ⁇ m, not only sufficient solderability and fingerprint resistance cannot be obtained, but also corrosion resistance is remarkably poor. If the thickness exceeds 2 m, the effect of improving the characteristics is saturated and the cost advantage is lost.
  • the specifications of the plated steel sheet are not particularly limited. Either method, such as hot-dip plating or electric plating, can provide a plating having a sufficient effect.
  • the type of plating applied to the steel sheet such as copper plating, nickel plating, tin plating, lead-tin alloy plating, zinc plating, alloy zinc plating, and composite zinc plating, is also selected according to the application. You.
  • the applicable resin film may be polyester having a thickness of 5 to 300 m, Includes films made of vinyl chloride, polypropylene, and polyethylene.
  • a polyester film is particularly preferable because it has excellent electrical insulation properties over a wide range of temperatures. If the thickness of the resin film is less than 5 m, little effect is obtained in terms of electrical insulation, and if it exceeds 300 m, it is not preferable in terms of economy.
  • a known method may be applied to the method for coating the resin film on the plated steel sheet, and is not particularly limited.
  • the resin film may be adhered to the surface of the plated steel sheet via an adhesive.
  • an adhesive for example, one or more of acrylic resin, epoxy resin, nylon resin, urethane resin, vinyl resin, synthetic rubber resin, fuanol resin, olefin resin, or polyester resin Good.
  • the thickness of the adhesive is preferably in the range of 0.1 to 10 m in dry thickness. If it is less than 0.1 m, the adhesive strength is extremely reduced, and if it exceeds 10 m, it is not preferable in terms of economy.
  • the adhesive may be in any form of a solution, a powder, a paste, or a film, and may be a resin film coated with an adhesive.
  • An annealed and temper rolled steel sheet (sheet thickness 0.5 mm) is used as After performing degreasing and cleaning treatment by sulfuric acid pickling, electro-zinc plating, electro-zinc alloy plating, or nickel plating was performed.
  • the post-treatment liquids shown in Tables 1 and 2 were applied to both sides or one side of these plated steel sheets by a roll coating method, and dried at 90 temperatures. In the case of a plated steel sheet coated with a post-treatment solution on both sides, this was used as the test material. In the case of a plated steel sheet having only one side coated with a post-treatment liquid, the steel sheet was further heated to a sheet temperature of 200 ° C., and a resin film was laminated on the other side to obtain a test material.
  • Tables 1 to 3 show the conditions for sample preparation, and Tables 4 to 6 show the evaluation results. The evaluation was performed for the following items.
  • S ODERCHE CKER MODEL SAT-2000, manufactured by RHE SCA
  • % Solder flux Lapix RA, manufactured by Nippon Handa Kogyo
  • Lapix RMA a weak active flux containing no chlorine
  • JISZ 3282 A sample in which the above flux was applied to H60A was immersed in 2 mm, the length of the solder wetted was measured, and the solder wettability was evaluated based on the following criteria. The test was performed in two ways: immediately after sample preparation and after 500 hours of aging at constant temperature and humidity (60 ° C, 95% RH).
  • a salt spray test was conducted for 96 hours in accordance with JIS Z 2371, and the occurrence of redness was visually observed, and the corrosion resistance was evaluated based on the following criteria.
  • PET polyethylene phthalate
  • ⁇ rif Dk ren
  • PE polyethylene
  • Section p33 ⁇ 4 Treatment solution composition (g c) Acrylic leather Resin cloth Resin film Film number Acrylic water-soluble water-proof pigment Surface acid value Thickness thickness Resin resin ⁇ m ⁇ m
  • the plated steel sheet coated with the post-treatment liquid of the present invention has excellent solder wettability even when a flux containing no chlorine is used, which is not inferior even with time, and also excellent in corrosion resistance. Further, the post-treatment liquid of the present invention is applied to one side of a plated steel sheet, and the other side is coated with a resin film having electrical insulation properties.
  • the coated steel sheet has excellent solderability and corrosion resistance of the above-described various types. Also, since it is excellent in processing adhesion of a resin film, it can be very advantageously applied to precision electronic equipment.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

La présente invention concerne une solution de post-traitement qui a une mouillabilité à la soudure élevée et de plus, une excellente résistance à la corrosion, même lorsqu'un flux ne contenant pas un chlore est utilisé. L'invention, qui concerne également un procédé de post-traitement utilisant cette solution, concerne aussi une plaque post-traitée obtenue en appliquant cette solution de post-traitement, et concerne enfin un procédé de production de cette plaque. Cette solution de post-traitement contient 100 à 600 g/l d'une résine acrylique de type aqueux dont l'indice d'acide ne dépasse pas 150, 1 à 30 g/l de pigment antirouille, 1 à 100 g/l de colophane rendue hydrosoluble et/ou 1 à 30 g/l de réticulant. On applique cette solution de post-traitement de façon que l'épaisseur à sec soit de 0,05 νm à 2 νm.
PCT/JP1997/003313 1996-09-20 1997-09-19 Solution de post-traitement de feuille de plaque d'acier presentant une soudabilite amelioree, plaque post-traitee et procede de production WO1998012362A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP51451998A JP3502393B2 (ja) 1996-09-20 1997-09-19 後処理板およびその製造方法
AU43190/97A AU4319097A (en) 1996-09-20 1997-09-19 Post-treating solution of plated steel sheet having improved solderability, post-treated plate and method of production thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8/269119 1996-09-20
JP26911996 1996-09-20

Publications (1)

Publication Number Publication Date
WO1998012362A1 true WO1998012362A1 (fr) 1998-03-26

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PCT/JP1997/003313 WO1998012362A1 (fr) 1996-09-20 1997-09-19 Solution de post-traitement de feuille de plaque d'acier presentant une soudabilite amelioree, plaque post-traitee et procede de production

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JP (1) JP3502393B2 (fr)
AU (1) AU4319097A (fr)
WO (1) WO1998012362A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003213454A (ja) * 2002-01-18 2003-07-30 Toyo Kohan Co Ltd 電子部品用表面処理鋼板およびその製造方法
JP2004218051A (ja) * 2003-01-17 2004-08-05 Toyo Kohan Co Ltd 後処理めっき鋼板
JP2004218050A (ja) * 2003-01-17 2004-08-05 Toyo Kohan Co Ltd めっき鋼板用後処理液、それを用いた後処理めっき鋼板、およびその製造方法
JP2005054256A (ja) * 2003-08-06 2005-03-03 Ishihara Chem Co Ltd スズ又はスズ合金メッキ表面の後処理液、及び後処理方法
JP2008179754A (ja) * 2006-12-27 2008-08-07 Asahi Kagaku Kogyo Co Ltd 塗布液およびクリヤーコート鋼板
CN103409744A (zh) * 2013-07-25 2013-11-27 鲁东大学 一种水溶性改性松香制品、封闭剂及其应用

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60197881A (ja) * 1984-03-21 1985-10-07 Daido Kohan Kk アルミニウム―亜鉛合金めっき鋼板の表面処理法
JPS6123767A (ja) * 1984-07-11 1986-02-01 Nisshin Steel Co Ltd 高耐食性表面処理鋼板
JPS6123768A (ja) * 1984-07-12 1986-02-01 Nisshin Steel Co Ltd 高耐食性表面処理鋼板
JPH01290778A (ja) * 1988-05-19 1989-11-22 Toyo Kohan Co Ltd めっき鋼板の後処理方法
JPH02179883A (ja) * 1988-12-29 1990-07-12 Nisshin Steel Co Ltd めっき鋼板のクロメート処理方法
JPH04318179A (ja) * 1991-04-18 1992-11-09 Daido Steel Sheet Corp アルミニウム−亜鉛合金めっき鋼板の製造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60197881A (ja) * 1984-03-21 1985-10-07 Daido Kohan Kk アルミニウム―亜鉛合金めっき鋼板の表面処理法
JPS6123767A (ja) * 1984-07-11 1986-02-01 Nisshin Steel Co Ltd 高耐食性表面処理鋼板
JPS6123768A (ja) * 1984-07-12 1986-02-01 Nisshin Steel Co Ltd 高耐食性表面処理鋼板
JPH01290778A (ja) * 1988-05-19 1989-11-22 Toyo Kohan Co Ltd めっき鋼板の後処理方法
JPH02179883A (ja) * 1988-12-29 1990-07-12 Nisshin Steel Co Ltd めっき鋼板のクロメート処理方法
JPH04318179A (ja) * 1991-04-18 1992-11-09 Daido Steel Sheet Corp アルミニウム−亜鉛合金めっき鋼板の製造方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003213454A (ja) * 2002-01-18 2003-07-30 Toyo Kohan Co Ltd 電子部品用表面処理鋼板およびその製造方法
JP2004218051A (ja) * 2003-01-17 2004-08-05 Toyo Kohan Co Ltd 後処理めっき鋼板
JP2004218050A (ja) * 2003-01-17 2004-08-05 Toyo Kohan Co Ltd めっき鋼板用後処理液、それを用いた後処理めっき鋼板、およびその製造方法
JP2005054256A (ja) * 2003-08-06 2005-03-03 Ishihara Chem Co Ltd スズ又はスズ合金メッキ表面の後処理液、及び後処理方法
JP2008179754A (ja) * 2006-12-27 2008-08-07 Asahi Kagaku Kogyo Co Ltd 塗布液およびクリヤーコート鋼板
CN103409744A (zh) * 2013-07-25 2013-11-27 鲁东大学 一种水溶性改性松香制品、封闭剂及其应用

Also Published As

Publication number Publication date
AU4319097A (en) 1998-04-14
JP3502393B2 (ja) 2004-03-02

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