JPH0344406B2 - - Google Patents
Info
- Publication number
- JPH0344406B2 JPH0344406B2 JP59129138A JP12913884A JPH0344406B2 JP H0344406 B2 JPH0344406 B2 JP H0344406B2 JP 59129138 A JP59129138 A JP 59129138A JP 12913884 A JP12913884 A JP 12913884A JP H0344406 B2 JPH0344406 B2 JP H0344406B2
- Authority
- JP
- Japan
- Prior art keywords
- ribbon
- amorphous alloy
- parts
- weight
- chromate
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 238000000576 coating method Methods 0.000 claims description 31
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims description 28
- 239000011248 coating agent Substances 0.000 claims description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 19
- 239000011347 resin Substances 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 16
- 239000011162 core material Substances 0.000 claims description 15
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims description 13
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 15
- 238000000137 annealing Methods 0.000 description 9
- 238000009413 insulation Methods 0.000 description 9
- 239000011229 interlayer Substances 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 6
- GIOZLVMCHDGNNZ-UHFFFAOYSA-N magnesium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium Chemical compound [Mg+2].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O GIOZLVMCHDGNNZ-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- RMISVBXFFXBNAD-UHFFFAOYSA-N calcium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium Chemical compound [Ca+2].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O RMISVBXFFXBNAD-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 101000803685 Homo sapiens Vacuolar protein sorting-associated protein 4A Proteins 0.000 description 1
- 101000803689 Homo sapiens Vacuolar protein sorting-associated protein 4B Proteins 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229910018540 Si C Inorganic materials 0.000 description 1
- 102100035085 Vacuolar protein sorting-associated protein 4A Human genes 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000005300 metallic glass Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
- H01F1/15383—Applying coatings thereon
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical Treatment Of Metals (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Soft Magnetic Materials (AREA)
Description
【発明の詳細な説明】
（技術分野）
積みあるいは巻きトランス用の鉄心材料に使用
する非晶質合金薄帯の表面に絶縁被膜を施すこと
に関してこの明細書で述べる技術内容は、該被膜
による非晶質合金薄帯の特性改善、またさらには
打抜性の改良に関連した開発成果を提案するとこ
ろにある。[Detailed Description of the Invention] (Technical Field) The technical content described in this specification regarding applying an insulating coating to the surface of an amorphous alloy ribbon used as a core material for a laminated or wound transformer is The purpose of this paper is to propose development results related to improving the properties of crystalline alloy ribbons and further improving punchability.
（背景技術）
Fe−Ｂ系およびFe−Ｂ−Si系などの溶融合金
を105〜106℃／秒程度の冷却速度で急冷凝固させ
ると、無秩序な原子配列をもつ板厚20〜50μｍ程
度の非晶質合金薄帯が得られる。(Background technology) When molten alloys such as Fe-B and Fe-B-Si are rapidly solidified at a cooling rate of about 10 5 to 10 6 °C/sec, a plate with a disordered atomic arrangement and a thickness of about 20 to 50 μm is formed. An amorphous alloy ribbon is obtained.
この非晶質合金薄帯は、軟磁性に優れ、殊に極
めて低い鉄損を有することから、トランスやモー
ターの鉄心材料として現在使用されているけい素
鋼板の有力の競合材料として注目されている。 This amorphous alloy ribbon has excellent soft magnetic properties and extremely low core loss, so it is attracting attention as a strong competitor to the silicon steel sheets currently used as core materials for transformers and motors. .
（問題点）
従来このような、非晶質合金薄帯（以下、リボ
ンという。）は、絶縁被膜を施すことなく裸のま
まで、巻きコアを作り、変圧器に組み上げるのが
常であつた。その理由は、適切な絶縁被膜が開発
されていなかつたためもあるが、非晶質合金自身
の高い比抵抗と、リボンの表面粗度が大きいた
め、積層リボン間の層間抵抗が高く、全損失への
渦流損の寄与が小さかつたからである。(Problem) Conventionally, such amorphous alloy ribbons (hereinafter referred to as ribbons) were used to be wound into cores without being coated with an insulating coating, and then assembled into transformers. . The reason for this is that an appropriate insulating film has not yet been developed, but due to the high resistivity of the amorphous alloy itself and the large surface roughness of the ribbon, the interlayer resistance between the laminated ribbons is high, leading to total loss. This is because the contribution of eddy current loss was small.
ところが、近時非晶質合金リボンの製造技術の
進歩に伴ない、表面が平滑になつて占積率が向上
するとともに、層間抵抗が減少し多層の巻コアを
作ると渦流損が増加する傾向にある。 However, with recent advances in manufacturing technology for amorphous alloy ribbons, the surface has become smoother and the space factor has improved, while interlayer resistance has decreased and eddy current loss tends to increase when a multilayer wound core is made. It is in.
（類似技術）
特開昭58−109171号公報は、加熱による非晶質
合金の脆化を避けるため、電子線硬化性樹脂の使
用が提案されている。しかしながら公知のよう
に、Fe−Ｂ−Si系非晶質合金の磁性を充分に発
揮させるには、350℃ないし400℃で磁場中焼鈍す
ることが必要である。前期有機樹脂では、この焼
鈍中に炭化し、所期の目的である層間抵抗を維持
することができない。(Similar Technology) JP-A-58-109171 proposes the use of an electron beam curable resin in order to avoid embrittlement of an amorphous alloy due to heating. However, as is known, in order to fully exhibit the magnetic properties of Fe-B-Si amorphous alloys, it is necessary to annealing them at 350°C to 400°C in a magnetic field. The organic resin is carbonized during this annealing and cannot maintain the desired interlayer resistance.
一方従来のけい素鋼板用の絶縁被膜は、焼付に
400℃以上の加熱を要するので、その単なる転用
はリボンの脆化、結晶化などをもたらすから非晶
質合金のリボンに対しては、絶縁被膜としてその
まま使用することが不可能である。 On the other hand, conventional insulation coatings for silicon steel sheets are susceptible to seizure.
Since heating to 400° C. or higher is required, mere diversion would result in embrittlement and crystallization of the ribbon, so it is impossible to use it directly as an insulating coating for amorphous alloy ribbons.
（発明の目的）
この種のリボンの占積率を低下させることな
く、渦流損、換言すれば全鉄損を減少させること
がこの発明の第１目的である。(Objective of the Invention) The first object of the present invention is to reduce the eddy current loss, in other words, the total iron loss, without reducing the space factor of this type of ribbon.
さらにまた、上記のリボン特性の改善にあわ
せ、リボンの打抜性を改善することがもう一つの
発明の目的である。 Furthermore, in addition to improving the ribbon properties described above, another object of the invention is to improve the punchability of the ribbon.
（発明の構成）
上記の各目的は、次の事項を骨子とする手順に
て有利に充足される。(Structure of the Invention) Each of the above objects can be advantageously achieved by a procedure based on the following matters.
第１発明：積みあるいは、巻きトランス用の鉄心
材料として使用する非晶質合金薄帯の表面に、
有機還元剤を含むクロム酸塩系の絶縁被膜を施
すことを特徴とする非晶質合金薄帯の特性改善
方法。First invention: On the surface of an amorphous alloy ribbon used as a core material for laminated or wound transformers,
A method for improving the properties of an amorphous alloy ribbon, characterized by applying a chromate-based insulating film containing an organic reducing agent.
第２発明；積みあるいは、巻きトランス用鉄心材
料として使用する非晶質合金薄帯の表面に、有
機樹脂と、有機還元剤を含むクロム酸塩系の絶
縁被膜を施すことを特徴とする非晶質合金薄帯
の特性、打抜き性改善方法。Second invention: An amorphous alloy characterized in that a chromate-based insulating coating containing an organic resin and an organic reducing agent is applied to the surface of an amorphous alloy ribbon used as a core material for a laminated or wound transformer. Properties of quality alloy ribbon and method for improving punching properties.
各発明とも実施に当つては、絶縁被膜の平均膜
厚を0.05ないし0.5μｍとすること、クロム酸塩系
絶縁被膜の焼付を200℃ないし400℃において、10
秒ないし120秒間に行なうこと、そして非晶質合
金薄帯の化学組成が、Fe74-82、B8-15、Si8-15、
C0-3であることが好適である。 In carrying out each invention, the average thickness of the insulating coating should be 0.05 to 0.5 μm, and the baking of the chromate-based insulating coating should be carried out at 200°C to 400°C.
to 120 seconds, and the chemical composition of the amorphous alloy ribbon is Fe 74-82 , B 8-15 , Si 8-15 ,
Preferably it is C 0-3 .
さて上記の目的の下に、低温でも焼付が可能な
ようにクロム酸塩系すなわち重クロム酸マグネシ
ウムや重クロム酸カルシウムなどを基本とし、さ
らに６価クロムを３価に還元するための還元剤を
多量に添加し、また有機樹脂の配合を行う。クロ
ム酸塩系絶縁被膜の平均膜厚については、0.05μ
ｍ未満では層間絶縁を確保し難く、一方0.5μｍを
こえると層間絶縁の面からはむしろ好都合であつ
ても、占積率を損なうので好ましくない。 Now, with the above purpose in mind, we use chromate-based materials such as magnesium dichromate and calcium dichromate to enable baking even at low temperatures, and we also use a reducing agent to reduce hexavalent chromium to trivalent chromium. A large amount is added and an organic resin is blended. The average thickness of the chromate-based insulation coating is 0.05μ.
If it is less than 0.5 μm, it is difficult to ensure interlayer insulation, while if it exceeds 0.5 μm, it is not preferable because it impairs the space factor, even if it is convenient from the standpoint of interlayer insulation.
それというのも非晶質合金のリボン厚が、20μ
ｍないし50μｍ程度に極めて薄いため、非磁性被
膜による占積率低下の影響が著しいからである。 This is because the ribbon thickness of the amorphous alloy is 20 μm.
This is because the non-magnetic film has a significant effect of decreasing the space factor because it is extremely thin, about 50 μm to 50 μm.
次にクロム酸塩系の絶縁被膜は、200℃ないし
400℃の低温でも焼付が可能になり、非晶質合金
を脆化させることなく、絶縁被膜を施すことがで
きる。なお焼付け温度を400℃より高くしても被
膜特性上は可能であるが、非晶質合金のリボンが
脆化し易くなるので、400℃以下に、また200℃未
満では、耐吸湿性などの被膜特性を満足し難くな
ることが留意事項である。また、焼付け時間につ
いても10秒ないし120秒の範囲が被膜特性と脆化
の兼ね合いからのぞましい。 Next, chromate-based insulation coatings are
Baking is now possible at temperatures as low as 400°C, making it possible to apply insulation coatings to amorphous alloys without embrittling them. Although it is possible to increase the baking temperature higher than 400°C in terms of film properties, the amorphous alloy ribbon becomes more likely to become brittle, so baking at temperatures below 400°C and below 200°C is recommended for coatings with moisture absorption resistance, etc. It should be noted that it becomes difficult to satisfy the characteristics. Furthermore, the baking time is preferably in the range of 10 seconds to 120 seconds in view of the balance between film properties and embrittlement.
上記絶縁被膜を施す非晶質合金薄帯の化学組成
については、Fe74-82、B8-15Si8-15、C0-3で示さ
れるものが好ましく、それというのは、一般に面
圧が大きく、高い層間絶縁が要求されるトランス
鉄心材料としては、高磁束密度と低鉄損が要求さ
れ、そのためにはFe−Ｂ−Si−Ｃ系殊に前記の
組成要領が好ましく、この領域外では鉄損が劣化
したり、アモルフアス形成能が低下するきらいが
ある。 The chemical composition of the amorphous alloy ribbon to which the above-mentioned insulating coating is applied is preferably one represented by Fe 74-82 , B 8-15 Si 8-15 , or C 0-3 , which generally means that the surface pressure For transformer core materials that require high interlayer insulation and high magnetic flux density, high magnetic flux density and low core loss are required.For this purpose, the Fe-B-Si-C system, especially the above-mentioned composition, is preferred; In this case, iron loss tends to deteriorate and the ability to form amorphous amorphous metal tends to decrease.
さてFe78B10Si12組成の合金を溶解し、単ロー
ル法で５cm巾、30cmμｍ厚の非晶質合金リボンを
つくつた。 Now, an alloy with a composition of Fe 78 B 10 S i12 was melted and an amorphous alloy ribbon 5 cm wide and 30 cm μm thick was produced using a single roll method.
次いで第１発明に従い、
重クロム酸マグネシウム 100重量部
エチレングリコール 30重量部
の水溶液をロールコータで非晶質合金リボンに施
し350℃で60秒間焼付けた。 Next, according to the first invention, an aqueous solution of 100 parts by weight of magnesium dichromate and 30 parts by weight of ethylene glycol was applied to the amorphous alloy ribbon using a roll coater and baked at 350°C for 60 seconds.
塗布量は、平均膜厚が0.1μｍになるよう塗布液
の濃度を調整した。 Regarding the coating amount, the concentration of the coating liquid was adjusted so that the average film thickness was 0.1 μm.
無処理リボンの占積率は81.3％、被膜付きリボ
ンでは81.2％であり、絶縁被膜による占積率の低
下はほとんどなく、また、被膜焼付けの加熱によ
つては非晶質合金リボンの脆化することはなかつ
た。 The space factor of the untreated ribbon is 81.3%, and the filmed ribbon is 81.2%, so there is almost no decrease in the space factor due to the insulating film, and the heating for baking the film may cause embrittlement of the amorphous alloy ribbon. There was nothing to do.
この絶縁被膜を施したリボンを直径６cmのトロ
イダルコアとして、減圧下200A／ｍの磁場中で
370℃１時間の焼鈍を行ないそのまま冷却した。
このトロイダルコアの50Hz、1.3Tでの鉄損
W13/50、0.11W／Kgであり、無処理リボンの
0.15W／Kgより優れていた。 The ribbon with this insulating coating was used as a toroidal core with a diameter of 6 cm, and it was placed in a magnetic field of 200 A/m under reduced pressure.
It was annealed at 370°C for 1 hour and then cooled.
Iron loss of this toroidal core at 50Hz, 1.3T
W 13/50 , 0.11W/Kg, untreated ribbon
It was better than 0.15W/Kg.
さらにこの絶縁被膜処理によつて、トランス油
中に長時間浸漬した場合に発生した磁性劣化も生
ずることなく、耐油性の向上が認められた。 Furthermore, by this insulating coating treatment, the magnetic deterioration that occurs when immersed in transformer oil for a long time did not occur, and the oil resistance was improved.
次に第２発明においては、上記のクロム酸塩被
膜中に、酢酸ビニル樹脂、アクリル樹脂およびメ
ラミン樹脂などの有機樹脂を含有させる。 Next, in the second invention, organic resins such as vinyl acetate resin, acrylic resin, and melamine resin are contained in the above-mentioned chromate coating.
このような有機樹脂の配合によつて層間抵抗が
増大することもあるが、それ以上にリボンの打抜
性向上に寄与する。 Although the interlayer resistance may increase due to the blending of such an organic resin, it contributes more to improving the punchability of the ribbon.
モーターのような電動回転機のローターやステ
ーターを作るには、エツチング等も可能である
が、工業的には打抜加工が最適であり、クリアラ
ンスの設定や金型材質の選択もカエリ高さを小さ
くする上で打抜性は重要であるが、被打抜材料側
からの改善は、表面潤滑の向上で対処することが
できる。この目的のためには、クロム酸塩被膜中
に有機樹脂を含有させるのが極めて有効であるこ
とが見出された。打抜性の向上のためには、クロ
ム酸塩100重量部に対して有機樹脂を25重量部以
上配合することが必要であり、とくに少くとも
0.05μｍ以上、好ましくは0.1μｍ以上の膜厚を有
する被膜を施すことが必要である。配合有機樹脂
量を100重量部以上にすることも打抜性の面から
は有利であるが、過剰の有機樹脂を配合したクロ
ム酸塩系絶縁被膜は、さきに触れた単味の有機樹
脂と同様に、焼鈍によつて層間絶縁を損なう欠点
がある。これらから有機樹脂の配合量は25重量部
ないし100重量部がのぞましい。 To make the rotor and stator of electric rotating machines such as motors, etching etc. are possible, but punching is the most suitable for industrial use, and clearance settings and mold material selection are also important in controlling the burr height. Although punchability is important in reducing the size, improvements in the material to be punched can be achieved by improving surface lubrication. It has been found that the inclusion of an organic resin in the chromate coating is extremely effective for this purpose. In order to improve punchability, it is necessary to mix 25 parts by weight or more of organic resin with 100 parts by weight of chromate, especially at least
It is necessary to apply a coating having a thickness of 0.05 μm or more, preferably 0.1 μm or more. Although it is advantageous from the viewpoint of punchability to incorporate an organic resin amount of 100 parts by weight or more, a chromate-based insulating coating containing an excessive amount of organic resin is inferior to the plain organic resin mentioned earlier. Similarly, annealing has the disadvantage of compromising interlayer insulation. From these, the amount of organic resin blended is preferably 25 parts by weight to 100 parts by weight.
第２発明に従い
重クロム酸マグネシウム 100重量
アクリル樹脂 40重量部
エチレングリコール 30重量部
の水溶液を、ロールコータでFe78、B10、Si12組
成の非晶質合金リボンに施し、350℃で60秒間焼
付けた。 According to the second invention, an aqueous solution containing 100 parts by weight of magnesium dichromate, 40 parts by weight of acrylic resin, and 30 parts by weight of ethylene glycol was applied to an amorphous alloy ribbon having a composition of Fe 78 , B 10 , and Si 12 using a roll coater, and heated at 350°C for 60 seconds. Burnt.
塗布量は、平均膜厚が0.2μｍになるように塗布
液の濃度を調整した。 Regarding the coating amount, the concentration of the coating liquid was adjusted so that the average film thickness was 0.2 μm.
無処理リボンの占積率は81.3％、被膜付きリボ
ンでは81.1％であり、絶縁被膜による占積率の低
下はほとんどなかつた。 The space factor of the untreated ribbon was 81.3%, and the coated ribbon was 81.1%, and there was almost no decrease in the space factor due to the insulating coating.
この絶縁被膜を施したリボンを直径６cmのトロ
イダルコアとして、減圧下200A／ｍの磁場中で、
370℃１時間の焼鈍を行ない、そのまま冷却した。
このトロイダルコアの50Hz、1.3Tでの鉄損W13/50
は0.11W／Kgであり、無処理リボンの0.15W／Kg
より優れていた。 Using this insulating coated ribbon as a toroidal core with a diameter of 6 cm, the ribbon was placed in a magnetic field of 200 A/m under reduced pressure.
Annealing was performed at 370°C for 1 hour, and the product was cooled as it was.
Iron loss of this toroidal core at 50Hz, 1.3T W 13/50
is 0.11W/Kg, and 0.15W/Kg for untreated ribbon.
It was better.
さらにこの絶縁被膜処理によつて、トランス油
中に長時間浸漬した場合に発生した磁性劣化も生
ずることなく、耐油性の向上が認められた。 Furthermore, by this insulating coating treatment, the magnetic deterioration that occurs when immersed in transformer oil for a long time did not occur, and the oil resistance was improved.
次に無処理リボンでは、SKD1金型にて1.5萬回
しか打抜けなかつたが、第２発明による被膜処理
リボンでは、５萬回まで打抜くことができた。 Next, the untreated ribbon could be punched only 1.5 million times using the SKD1 mold, but the coated ribbon according to the second invention could be punched up to 50,000 times.
（実施例）
実施例 １
巾２cm、板厚28μｍのFe78B10Si12非晶質合金リ
ボンに重クロム酸マグネシウム100重量部、エチ
レングリコール40重量部を含む水溶液を塗布した
後、300℃で90秒間焼付け、0.05μｍ厚の絶縁被膜
を施した。占積率は80.8％であり、減圧下磁場中
焼鈍後の鉄損W13/50は0.13W／Kgであつた。(Example) Example 1 After applying an aqueous solution containing 100 parts by weight of magnesium dichromate and 40 parts by weight of ethylene glycol to an Fe 78 B 10 Si 12 amorphous alloy ribbon with a width of 2 cm and a plate thickness of 28 μm, the ribbon was heated at 300°C. Baking was performed for 90 seconds to form an insulating film with a thickness of 0.05 μm. The space factor was 80.8%, and the iron loss W 13/50 after annealing in a magnetic field under reduced pressure was 0.13 W/Kg.
なお上記リボンのみの占積率は、80.8％また
W13/50は0.16W／Kgであつた。 The space factor of the above ribbon alone is 80.8% or
W 13/50 was 0.16W/Kg.
実施例 ２
絶縁被膜厚を0.2μｍとする他は、実施例１と同
様に処理した。占積率は80.6％であり、減圧下磁
場中焼鈍後のW13/50は0.12W／Kgであつた。Example 2 The same process as in Example 1 was carried out except that the thickness of the insulating coating was 0.2 μm. The space factor was 80.6%, and the W 13/50 after annealing in a magnetic field under reduced pressure was 0.12 W/Kg.
実施例 ３
５cm巾、30μｍ厚のFe78B10Si12非晶質合金リボ
ンに重クロム酸マグネシウム５重量部、重クロム
酸カルシウム50重量部、エチレングリコール30部
の塗布液を塗り、350℃で60秒間焼付け、0.1μｍ
厚の絶縁被膜を施した。占積率は81.2％であり、
減圧下磁場中焼鈍後のW13/50は0.11W／Kgであつ
た。Example 3 A coating solution containing 5 parts by weight of magnesium dichromate, 50 parts by weight of calcium dichromate, and 30 parts of ethylene glycol was applied to a Fe 78 B 10 Si 12 amorphous alloy ribbon 5 cm wide and 30 μm thick, and heated at 350°C. Baked for 60 seconds, 0.1μm
A thick insulating coating was applied. The occupancy rate is 81.2%,
W 13/50 after annealing in a magnetic field under reduced pressure was 0.11 W/Kg.
なお上記リボンのみ占積率は81.3％であり
W13/50は0.15W／Kgであつた。 The space factor for the above ribbon alone is 81.3%.
W 13/50 was 0.15W/Kg.
以上は、第１発明の各実施例であるが、以下第
２発明のそれについて述べる。 Although the embodiments of the first invention have been described above, the embodiments of the second invention will be described below.
実施例 ４
実施例１と同じ非晶質合金のリボンに重クロム
酸マグネシウム100重量部、酢酸ビニル樹脂20重
量部アクリル樹脂20重量部、エチレングリコール
30重量部を含む水溶液を塗布した後、300℃で90
秒間焼付け、0.1μｍの絶縁被膜を施した。占積率
は80.8％減圧下磁場中焼鈍後の鉄損W13/50は
0.13W／Kg、打抜回数は、3.5萬回であつた。こ
れに対し上記リボンのみの打抜回数は1.5萬回で
あつた。Example 4 100 parts by weight of magnesium dichromate, 20 parts by weight of vinyl acetate resin, 20 parts by weight of acrylic resin, and ethylene glycol were added to the same amorphous alloy ribbon as in Example 1.
After applying an aqueous solution containing 30 parts by weight, 90%
A 0.1 μm insulating film was applied by baking for a second. The space factor is 80.8%, and the iron loss W after annealing in a magnetic field under reduced pressure is 13/50.
It was 0.13W/Kg and the number of punches was 3.5 million times. On the other hand, the number of punchings for the above-mentioned ribbon alone was 1.5 million times.
実施例 ５
絶縁被膜を0.5μｍとする他は、実施例１と同様
に処理した。占積率は80.1％、減圧下磁場中焼鈍
後のW13/50は0.11W／Kg、打抜回数は６萬回であ
つた。Example 5 The same process as in Example 1 was carried out except that the thickness of the insulating film was 0.5 μm. The space factor was 80.1%, the W 13/50 after annealing in a magnetic field under reduced pressure was 0.11 W/Kg, and the number of punches was 60,000.
比較例 １
絶縁被膜膜厚を1μｍとする他は、実施例４と
同様に処理したところ占積率78.7％、W13/50は
0.15W／Kgに劣化したが打抜回数は８萬回であつ
た。Comparative Example 1 When treated in the same manner as in Example 4 except that the insulation coating film thickness was 1 μm, the space factor was 78.7% and W 13/50 was
It deteriorated to 0.15W/Kg, but the number of punches was still 80,000.
比較例 ２
実施例４において有機樹脂を含まないクロム酸
塩系塗布液を用いたほか、実施例４と同様に処理
したところ実施例１とほぼ同じく占積率は80.8
％、W13/50は0.13W／Kgであつたが打抜回数は2.5
萬回であつた。Comparative Example 2 In addition to using a chromate-based coating liquid that does not contain organic resin, the same treatment as in Example 4 was performed, and the space factor was 80.8, which was almost the same as in Example 1.
%, W 13/50 was 0.13W/Kg, but the number of punches was 2.5
It was a million times.
（発明の効果）
以上のようにして、第１発明では非晶質合金リ
ボンの特性の著しい改善、そして第２発明ではさ
らに打抜性の改善が有利に実現される。(Effects of the Invention) As described above, in the first invention, the characteristics of the amorphous alloy ribbon are significantly improved, and in the second invention, the punching property is further improved.
Claims (1)
て、使用する非晶質合金薄帯の表面に、 有機還元剤を含むクロム酸塩系の絶縁被膜を施
すこと を特徴とする非晶質合金薄帯の特性改善方法。 ２ 積みあるいは、巻きトランス用の鉄心材料と
して使用する非晶質合金薄帯の表面に、有機樹脂
と有機還元剤を含むクロム酸塩系の絶縁被膜を施
すことを特徴とする、非晶質合金薄帯の特性、打
抜き性改善方法。[Claims] 1. An amorphous alloy characterized in that a chromate-based insulating coating containing an organic reducing agent is applied to the surface of an amorphous alloy ribbon used as an iron core material for a laminated or wound transformer. A method for improving the properties of high quality alloy ribbon. 2. An amorphous alloy characterized by applying a chromate-based insulating coating containing an organic resin and an organic reducing agent to the surface of an amorphous alloy ribbon used as a core material for a laminated or wound transformer. Characteristics of thin ribbon and methods for improving punching properties.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12913884A JPS618903A (en) | 1984-06-25 | 1984-06-25 | Characteristics of amorphous alloy thin belt and improvement of dieing workability thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12913884A JPS618903A (en) | 1984-06-25 | 1984-06-25 | Characteristics of amorphous alloy thin belt and improvement of dieing workability thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS618903A JPS618903A (en) | 1986-01-16 |
| JPH0344406B2 true JPH0344406B2 (en) | 1991-07-05 |
Family
ID=15002054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12913884A Granted JPS618903A (en) | 1984-06-25 | 1984-06-25 | Characteristics of amorphous alloy thin belt and improvement of dieing workability thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS618903A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61136660A (en) * | 1984-12-05 | 1986-06-24 | Kawasaki Steel Corp | Amorphous iron alloy having small iron loss and superior suitability to treatment with insulating film |
| JPS63103098A (en) * | 1986-10-20 | 1988-05-07 | Nippon Steel Corp | Surface treatment of amorphous alloy material |
| JP2716064B2 (en) * | 1988-04-11 | 1998-02-18 | 日本ケミコン株式会社 | Magnetic ribbon and magnetic core |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58197803A (en) * | 1982-05-14 | 1983-11-17 | Yaskawa Electric Mfg Co Ltd | Forming method for inter-layer insulating film made of amorphous magnetic material |
| JPS5925998A (en) * | 1982-07-22 | 1984-02-10 | Nippon Steel Corp | Magnetic amorphous alloy material having superior insulating property and corrosion resistance |
-
1984
- 1984-06-25 JP JP12913884A patent/JPS618903A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58197803A (en) * | 1982-05-14 | 1983-11-17 | Yaskawa Electric Mfg Co Ltd | Forming method for inter-layer insulating film made of amorphous magnetic material |
| JPS5925998A (en) * | 1982-07-22 | 1984-02-10 | Nippon Steel Corp | Magnetic amorphous alloy material having superior insulating property and corrosion resistance |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS618903A (en) | 1986-01-16 |
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