JPS6320488A - Treatment of amorphous magnetic metal - Google Patents
Treatment of amorphous magnetic metalInfo
- Publication number
- JPS6320488A JPS6320488A JP16386086A JP16386086A JPS6320488A JP S6320488 A JPS6320488 A JP S6320488A JP 16386086 A JP16386086 A JP 16386086A JP 16386086 A JP16386086 A JP 16386086A JP S6320488 A JPS6320488 A JP S6320488A
- Authority
- JP
- Japan
- Prior art keywords
- amorphous magnetic
- metal
- magnetic metal
- etching
- lapping
- 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.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 27
- 239000002184 metal Substances 0.000 title claims abstract description 24
- 238000005530 etching Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 16
- 239000012779 reinforcing material Substances 0.000 abstract description 10
- 239000006061 abrasive grain Substances 0.000 abstract description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 229910021578 Iron(III) chloride Inorganic materials 0.000 abstract description 2
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 abstract description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 abstract description 2
- 230000002463 transducing effect Effects 0.000 abstract 2
- 239000002131 composite material Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Landscapes
- ing And Chemical Polishing (AREA)
- Magnetic Heads (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、アモルファス磁性金属の処理方法に係り、
特にラッピング処理後にエツチング処理を加えることに
よって、加工変質層をなくして電磁変換特性の向上を図
った。アモルファス磁性金属の処理方法に関するもので
ある。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for treating amorphous magnetic metal,
In particular, by adding an etching process after the lapping process, we were able to eliminate the process-affected layer and improve the electromagnetic characteristics. The present invention relates to a method for processing amorphous magnetic metal.
耐摩耗性に優れ、加工精度が良好なフェライトが磁気ヘ
ッド材料として長（用いられてきたが、近年、メタル媒
体、蒸着媒体などの高抗磁力媒体の出現により、飽和磁
束密度が小さいゆえに書込能力に限界があるフェライト
に代わって飽和磁束密度がフェライトに比べて非常に大
きいメタル系材料１例えばアモルファス磁性金属が高抗
磁力媒体用の磁気ヘッド材料として用いられている。ア
モルファス磁性金属は、１０〜５０μｍ程度の薄い箔と
して製造されるので。Ferrite, which has excellent wear resistance and good processing accuracy, has long been used as a magnetic head material, but in recent years, with the advent of high coercive force media such as metal media and vapor deposited media, it has become difficult to write due to its low saturation magnetic flux density. In place of ferrite, which has a limited ability, metal-based materials with a saturation magnetic flux density that is much higher than that of ferrite, such as amorphous magnetic metals, are used as magnetic head materials for high coercive force media. It is manufactured as a thin foil of ~50 μm.
アモルファス磁性金属を磁気ヘッド材料として使用する
場合にはアモルファス磁性金属の両側に補強材を接合し
ている。アモルファス磁性金属を用いたビデオ用の磁気
ヘッドは２例えば次のような過程を経て製造されている
。すなわち。When amorphous magnetic metal is used as the magnetic head material, reinforcing materials are bonded to both sides of the amorphous magnetic metal. Video magnetic heads using amorphous magnetic metal are manufactured through the following process, for example. Namely.
アモルファス磁性金属と補強材の複合体を分割してコア
ブロック半休を形成し、該コアブロック半休に巻線用溝
およびギャップを形成した後。After dividing the composite of the amorphous magnetic metal and the reinforcing material to form core block halves, and forming winding grooves and gaps in the core block halves.
該コアブロック半休同士を接合してコアブロックを形成
し、該コアブロックをスライスして一枚のアモルファス
磁性金属が二枚の補強材によって挟着された。いわゆる
サンドインチ構造のコアを形成した後、該コアに巻線を
装着したものである。コアブロック半体形成の基礎とな
るアモルファス磁性金属と補強材の複合体は。A core block was formed by joining the core block halves together, and the core block was sliced to sandwich one piece of amorphous magnetic metal between two pieces of reinforcing material. After forming a core with a so-called sand inch structure, a winding wire is attached to the core. The composite of amorphous magnetic metal and reinforcing material is the basis for forming the core block halves.
複数のアモルファス磁性金属と複数の補強材が交互に積
層接合されたものである。A plurality of amorphous magnetic metals and a plurality of reinforcing materials are alternately laminated and bonded.
なお、アモルファス磁性金属と補強材の複合体として、
コアブロック半体形成の基礎となるもののほか、−枚の
アモルファス磁性金属が二枚の補強材によって挟着され
た。いわゆるサンドインチ構造のコア半休も含まれる。In addition, as a composite of amorphous magnetic metal and reinforcing material,
In addition to serving as the basis for forming the core block halves, -2 sheets of amorphous magnetic metal were sandwiched between two reinforcing materials. It also includes a so-called sand inch structure with a half-core core.
この場合。in this case.
コア半休の接合によってコアは形成される。いずれにし
ろ、積層接合の前に、所定の大きさに切断されたアモル
ファス磁性金属には回転定盤と研削砥粒による機械加工
、いわゆるラッピング処理がなされている。The core is formed by joining the core halves. In any case, before lamination and bonding, the amorphous magnetic metal cut to a predetermined size is subjected to machining using a rotating surface plate and grinding abrasive, that is, a so-called lapping process.
ラッピング処理は、アモルファス磁性金属の表面を平滑
にするとともに所定の厚さを得るためなされているが、
湿式ラッピング処理（砥粒は酸化アルミニウムまたは炭
化ケイ素、砥粒径は５〜１０μｍ、加工力は大きい）で
あるため。Lapping treatment is performed to smooth the surface of amorphous magnetic metal and to obtain a predetermined thickness.
Because it is a wet lapping process (the abrasive grains are aluminum oxide or silicon carbide, the abrasive grain size is 5 to 10 μm, and the processing power is large).
表面のあらさば０．５μ−と粗く、加工変質層は１〜５
μｍと大きい。このラッピング処理には。The surface roughness is as rough as 0.5 μ-, and the process-altered layer is 1 to 5.
It is as large as μm. For this wrapping process.
表面が粗いため接着剤のぬれ面積が大きく、補強材との
接着強度が大きいという利点があるが。Because the surface is rough, there is a large wetted area for the adhesive, which has the advantage of high adhesive strength with reinforcing materials.
その反面、加工変質層が大きいため電磁変換特性が悪い
という問題点がある。この問題点を解決するため、ラッ
ピング処理の代わりに機械的ボリシング処理（砥粒はダ
イヤモンド、砥粒径は０．５ μｍ、加工力は小さい）
が考えられる。On the other hand, there is a problem in that the electromagnetic conversion characteristics are poor because the process-affected layer is large. In order to solve this problem, instead of lapping, mechanical borishing (abrasive grains are diamond, abrasive grain diameter is 0.5 μm, processing force is small)
is possible.
機械的ボリシング処理によれば、加工変質層は０．０５
〜０．１μｍと小さく、電磁変換特性２例えば記録再生
出力は、ラッピング処理に比べて８ミリＶＴＲ用で約３
ｄＢ向上する。しかし、その反面２表面のあらさば０．
０３μｍと細かく１表面は鏡面になって接着強度は小さ
くなるので。According to the mechanical boring process, the process-altered layer is 0.05
It is small at ~0.1 μm, and the electromagnetic conversion characteristics 2 For example, the recording and playback output is about 3 for an 8 mm VTR compared to wrapping processing.
Improve by dB. However, on the other hand, the roughness on the surface of 2 is 0.
As fine as 0.3 μm, one surface becomes a mirror surface and the adhesive strength becomes small.
ラッピング処理の代わりに機械的ポリシング処理を到底
採用できない。Mechanical polishing cannot be used in place of lapping.
この発明は、このような従来技術の問題点を解決する目
的でなされたものである。The present invention was made to solve the problems of the prior art.
（問題点を解決するための手段〕
上記問題点を解決するための手段を以下説明する。この
発明は、所定の大きさに切断されたアモルファス磁性金
属をラッピング処理した後にエツチング処理を加えたも
のである。(Means for Solving the Problems) Means for solving the above problems will be explained below.This invention is a method in which an amorphous magnetic metal cut into a predetermined size is lapped and then etched. It is.
エツチング処理によって表面のあらさはそのままに、加
工変質層が除去される。The etching process removes the damaged layer while leaving the surface rough.
エツチング処理は、塩化第２鉄水溶液または王水＋塩酸
による化学的エツチング処理である。The etching process is a chemical etching process using a ferric chloride aqueous solution or aqua regia + hydrochloric acid.
エツチング処理によって１表面は表面の凹凸がそのまま
の形で削り取られる。このとき、加工変質層も削り取ら
れて、加工変質層はなくなる。Through the etching process, one surface is etched away with the surface irregularities intact. At this time, the work-affected layer is also scraped off, and the work-affected layer disappears.
このようにして得られたアモルファス磁性金属と補強材
の複合体は、以後の加工工程に耐える充分な接着強度を
有するとともに８係る複合体を使用した８ミリＶＴＲ用
の磁気ヘッドの記録再生出力は２図のＡのように、従来
のラッピング処理だけの磁気ヘッド（図のＢ）に比較し
て使用周波数帯域で約３ｄＢ向上した。The composite of the amorphous magnetic metal and reinforcing material thus obtained has sufficient adhesive strength to withstand subsequent processing steps, and the recording/reproducing output of a magnetic head for an 8 mm VTR using the composite is As shown in A in Figure 2, the frequency band used is improved by approximately 3 dB compared to the conventional magnetic head that only undergoes wrapping processing (B in the figure).
以上説明してきたように、この発明は、ラッピング処理
後にエツチング処理を加えたものである。それゆえ９表
面のあらさはそのままに。As explained above, in the present invention, etching processing is added after lapping processing. Therefore, the roughness of the 9 surface remains the same.
加工変質層が削り取られる。したがって、この発明によ
れば、電磁変換特性は向上するという効果が得られる。The process-altered layer is scraped off. Therefore, according to the present invention, the effect of improving electromagnetic conversion characteristics can be obtained.
図はこの発明と従来技術の周波数特性を示す図である。 The figure shows the frequency characteristics of the present invention and the prior art.
Claims (1)
ラッピング処理した後にエッチング処理を加えたことを
特徴とするアモルファス磁性金属の処理方法1. A method for processing amorphous magnetic metal, characterized in that an etching process is added after lapping the amorphous magnetic metal cut into a predetermined size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16386086A JPS6320488A (en) | 1986-07-14 | 1986-07-14 | Treatment of amorphous magnetic metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16386086A JPS6320488A (en) | 1986-07-14 | 1986-07-14 | Treatment of amorphous magnetic metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6320488A true JPS6320488A (en) | 1988-01-28 |
Family
ID=15782134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16386086A Pending JPS6320488A (en) | 1986-07-14 | 1986-07-14 | Treatment of amorphous magnetic metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6320488A (en) |
-
1986
- 1986-07-14 JP JP16386086A patent/JPS6320488A/en active Pending
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