JPS6261111B2 - - Google Patents
Info
- Publication number
- JPS6261111B2 JPS6261111B2 JP11815784A JP11815784A JPS6261111B2 JP S6261111 B2 JPS6261111 B2 JP S6261111B2 JP 11815784 A JP11815784 A JP 11815784A JP 11815784 A JP11815784 A JP 11815784A JP S6261111 B2 JPS6261111 B2 JP S6261111B2
- Authority
- JP
- Japan
- Prior art keywords
- steel strip
- magnetic steel
- amorphous magnetic
- magnetic
- alkoxide
- 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
Links
- 230000005291 magnetic effect Effects 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- -1 zirconium alkoxide Chemical class 0.000 claims description 9
- 238000002425 crystallisation Methods 0.000 claims description 6
- 230000008025 crystallization Effects 0.000 claims description 6
- 229910052726 zirconium Inorganic materials 0.000 claims description 6
- 238000004381 surface treatment Methods 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims 1
- 239000000696 magnetic material Substances 0.000 description 9
- 239000010408 film Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 7
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 230000005389 magnetism Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- FIPWRIJSWJWJAI-UHFFFAOYSA-N Butyl carbitol 6-propylpiperonyl ether Chemical compound C1=C(CCC)C(COCCOCCOCCCC)=CC2=C1OCO2 FIPWRIJSWJWJAI-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229960005235 piperonyl butoxide Drugs 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1229—Composition of the substrate
- C23C18/1241—Metallic substrates
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
- C23C18/1208—Oxides, e.g. ceramics
- C23C18/1216—Metal oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Chemical Treatment Of Metals (AREA)
Description
（産業上の利用分野）
本発明は非晶質磁性鋼帯の表面に非晶質を維持
するための必要条件である結晶化温度以下の温度
で絶縁性を付与、更に材料の磁性に好ましくない
圧縮応力による磁性の劣化の要因を極力避けるた
め、熱膨張率の小さな酸化物皮膜を得る表面処理
方法に関するものである。
ここで非晶質磁性鋼帯とは原子配列が液体のよ
うにランダムな構造をもつ磁性材料用鋼帯で溶融
金属を冷却基板上で超急冷する事により製造する
事が出来る。
金属成分としてはFe、Ｂ、Si、Ｃなどが主成
分である。
（従来の技術）
非晶質磁性鋼帯は結晶材料にくらべて磁気特性
がすぐれている事によつて省エネルギーの点から
近年大いに注目されている材料であるが、巻鉄心
或は積層鉄心として使用の際、層間の渦流損を押
えるため表面に絶縁性被膜を施すことが好まし
い。
非晶質磁性材料が通常20乃至60μｍと薄く、又
結晶化温度以上の温度では結晶化が進むために好
ましくは膜厚が0.2μｍ程度以下の薄い皮膜を結
晶化温度以下の温度で形成させる必要がある。
磁性材料の表面処理が磁性材料表面に圧縮応力
を与える様に働くと、磁性が劣化するため、それ
を避け、出来うれば張力がかかる様な表面皮膜が
好ましく、そのためには熱膨張率が磁性材料より
小さい特性を有する皮膜が好ましい。
しかし非晶質磁性材料の熱膨張率は非常に小さ
く表面処理皮膜の構成成分の選択も極く限られ
る。
1984年４月開催の国際応用磁気学会（Inter
Mag.）の発表（予稿集AP―15）によればSiO2コ
ーテイングの例があるが、フイルム状にしたもの
はストレスにより磁気特性（鉄損）のばらつきを
生じやすく粉状にしてその欠点を逃げている。し
かし粉状のコーテイングは鉄心加工時の密着性に
問題があると考えられる。
（発明が解決しようとする問題点）
本発明の目的はこの様な背景をもとに非晶質磁
性鋼帯の表面に鋼帯の磁性への悪影響を押え、極
めて薄く均質に、好ましい特性の一つである絶縁
性を有する金属酸化物（セラミツクス）皮膜を結
晶化温度以下の温度で充分焼成する表面処理法を
提供することにある。
本発明の酸化物皮膜は熱膨張率が極めて小さく
磁性材料の磁性を少なくとも劣化させる度合の少
ないZrO2或はZrO2とSiO2の化合物を主成分とす
るものである。勿論巻鉄心或は積鉄心に成形した
場合その層間絶縁抵抗付与により渦流損失は大幅
に低下する。
（問題点を解決するための手段）
本発明の骨子とするところは、ジルコニウムア
ルコキシドあるいはジルコニウムアルコキシドと
ケイ素のアルコキシドを含む有機溶媒溶液を、磁
性鋼帯表面に塗布、乾燥焼付ける事により熱分解
させZrO2或はZrO2とSiO2の混合物乃至化合物と
推定される皮膜を形成させるものであるが結晶の
成長度が低くＸ線回折等による確認は出来ていな
い。しかしジルコニウムアルコキシドあるいはジ
ルコニウムアルコキシドとケイ素のアルコキシド
を含む有機溶媒溶液が空気中の湿分により加水分
解されても或は加水分解されなくても磁性材料が
350℃乃至400℃で焼鈍されたあとは最終的には
ZrO2或はSiO2の混合酸化物或は化合物の皮膜が
形成されているものと考えられる。
これらの酸化物或は混合酸化物の焼結体の膨張
率は可成り小さい事が期待出来、従つて焼鈍後磁
性材料に好ましくない圧縮応力を出来るだけ小さ
く、場合によつては磁性に好ましい張力を与える
事も期待出来る。勿論鋼板表面のこれら酸化物皮
膜による絶縁性の向上は巻鉄心或は積層鉄心とし
て使用する場合、渦流損の増を抑え鉄損の低下に
効果がある。
（実施例）
以下実施例をあげて具体的に説明する。
実施例
Fe80.5原子％（以下同じ）、B12％、Si6.5％、
C1％を主成分とする板厚40±２μ、板幅100mmの
非晶質磁性鋼帯に下記の処理液およびとの
混合溶液を塗布し、200℃の大気中で乾操巻鉄心
として360℃N2気流中で１時間の磁場焼鈍をした
後、磁性を測定した。
塗布剤
：ZrO2として５重量％のジルコニウム―ｎ
―ブトキシドを含む酢酸ブチル溶液
：SiO2として５重量％のシリコンテトラエ
トキシドを含む酢酸エチル溶液
ZrO2：SiO2がモル比で１：１になる様混合、
混合後直ちに塗布
磁性測定結果は次表のとおりである。
(Field of Industrial Application) The present invention imparts insulation to the surface of an amorphous magnetic steel strip at a temperature below the crystallization temperature, which is a necessary condition for maintaining the amorphous state, and furthermore, it is undesirable for the magnetism of the material. The present invention relates to a surface treatment method for obtaining an oxide film with a small coefficient of thermal expansion in order to avoid as much as possible the cause of magnetic deterioration due to compressive stress. Here, the amorphous magnetic steel strip is a steel strip for magnetic materials whose atomic arrangement is random like that of a liquid, and can be manufactured by ultra-quenching molten metal on a cooling substrate. The main metal components are Fe, B, Si, C, etc. (Prior art) Amorphous magnetic steel strip is a material that has attracted much attention in recent years from the viewpoint of energy saving due to its superior magnetic properties compared to crystalline materials, but it has not been used as a wound core or a laminated core. At this time, it is preferable to apply an insulating coating to the surface in order to suppress eddy current loss between layers. Since the amorphous magnetic material is usually as thin as 20 to 60 μm and crystallization progresses at temperatures above the crystallization temperature, it is necessary to form a thin film with a thickness of preferably about 0.2 μm or less at a temperature below the crystallization temperature. There is. If the surface treatment of the magnetic material acts to apply compressive stress to the surface of the magnetic material, the magnetism will deteriorate, so to avoid this, it is preferable to create a surface coating that can be applied with tension. Coatings with properties smaller than the material are preferred. However, the coefficient of thermal expansion of amorphous magnetic materials is extremely small, and the selection of constituent components of the surface treatment film is extremely limited. The International Society of Applied Magnetics (Inter) was held in April 1984.
Mag.) (Proceedings AP-15), there is an example of SiO 2 coating, but film-formed coatings tend to cause variations in magnetic properties (iron loss) due to stress, and powder-formed coatings can overcome this drawback. running away However, powder coating is thought to have problems with adhesion during core processing. (Problems to be Solved by the Invention) Based on this background, the purpose of the present invention is to form an extremely thin and homogeneous surface of an amorphous magnetic steel strip with favorable characteristics while suppressing the negative effect on the magnetism of the steel strip. An object of the present invention is to provide a surface treatment method for sufficiently firing a metal oxide (ceramics) film having an insulating property at a temperature below the crystallization temperature. The oxide film of the present invention is mainly composed of ZrO 2 or a compound of ZrO 2 and SiO 2 which has an extremely small coefficient of thermal expansion and is less likely to degrade the magnetism of the magnetic material. Of course, when formed into a wound core or a laminated core, the eddy current loss is significantly reduced by providing interlayer insulation resistance. (Means for Solving the Problems) The gist of the present invention is to apply an organic solvent solution containing zirconium alkoxide or zirconium alkoxide and silicon alkoxide to the surface of a magnetic steel strip, and dry and bake it to thermally decompose it. It forms a film that is presumed to be ZrO 2 or a mixture or compound of ZrO 2 and SiO 2 , but the degree of crystal growth is so low that it cannot be confirmed by X-ray diffraction or the like. However, even if an organic solvent solution containing zirconium alkoxide or zirconium alkoxide and silicon alkoxide is hydrolyzed by moisture in the air, or even if it is not hydrolyzed, a magnetic material is produced.
After being annealed at 350℃ to 400℃, the final
It is thought that a film of a mixed oxide or compound of ZrO 2 or SiO 2 is formed. The expansion coefficient of the sintered body of these oxides or mixed oxides can be expected to be quite small, so that the compressive stress that is undesirable for the magnetic material after annealing can be minimized, and in some cases, the tensile stress that is favorable for the magnetic material can be minimized. You can also expect it to give you. Of course, the improvement in insulation by these oxide films on the surface of the steel sheet is effective in suppressing the increase in eddy current loss and reducing iron loss when used as a wound core or a laminated core. (Example) The present invention will be specifically explained below with reference to Examples. Example: Fe80.5 atomic% (same below), B12%, Si6.5%,
An amorphous magnetic steel strip with a thickness of 40±2μ and a width of 100mm, mainly composed of C1%, was coated with the following treatment solution and a mixed solution of Magnetism was measured after magnetic field annealing for 1 hour in a N 2 stream. Coating agent: 5% by weight zirconium-n as ZrO 2
- Butyl acetate solution containing butoxide: Ethyl acetate solution containing 5% by weight silicon tetraethoxide as SiO 2 Mix so that the molar ratio of ZrO 2 :SiO 2 is 1:1,
Apply immediately after mixing The magnetic measurement results are shown in the table below.
【表】
（発明の効果）
以上説明したように本発明によれば非晶質磁性
鋼帯の表面に絶縁性を有する金属酸化物皮膜を形
成することができるので渦流損失を大幅に低下さ
せることができ実用上の効果は極めて大きい。[Table] (Effects of the Invention) As explained above, according to the present invention, it is possible to form an insulating metal oxide film on the surface of an amorphous magnetic steel strip, thereby significantly reducing eddy current loss. The practical effect is extremely large.
Claims (1)
コキシドあるいはジルコニウムアルコキシドとケ
イ素のアルコキシドを含む有機溶媒溶液を塗布
し、前記非晶質磁性鋼の結晶化温度以下の温度
で、乾繰、焼付けを行ない金属酸化物より成る絶
縁性被膜を形成することを特徴とする非晶質磁性
鋼帯の表面処理法。1. Apply zirconium alkoxide or an organic solvent solution containing zirconium alkoxide and silicon alkoxide to the surface of an amorphous magnetic steel strip, and perform drying and baking at a temperature below the crystallization temperature of the amorphous magnetic steel. A surface treatment method for an amorphous magnetic steel strip characterized by forming an insulating film made of metal oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11815784A JPS60262978A (en) | 1984-06-11 | 1984-06-11 | Surface treatment of amorphous magnetic steel strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11815784A JPS60262978A (en) | 1984-06-11 | 1984-06-11 | Surface treatment of amorphous magnetic steel strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60262978A JPS60262978A (en) | 1985-12-26 |
| JPS6261111B2 true JPS6261111B2 (en) | 1987-12-19 |
Family
ID=14729507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11815784A Granted JPS60262978A (en) | 1984-06-11 | 1984-06-11 | Surface treatment of amorphous magnetic steel strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60262978A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0316507Y2 (en) * | 1986-02-26 | 1991-04-09 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970009411B1 (en) * | 1994-06-30 | 1997-06-13 | 한국과학기술연구원 | Method for forming insulating film on ribbon of amorphous magnetic alloy |
-
1984
- 1984-06-11 JP JP11815784A patent/JPS60262978A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0316507Y2 (en) * | 1986-02-26 | 1991-04-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60262978A (en) | 1985-12-26 |
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