JPS6043898B2 - Magnetic alloy for magnetic head - Google Patents
Magnetic alloy for magnetic headInfo
- Publication number
- JPS6043898B2 JPS6043898B2 JP53040287A JP4028778A JPS6043898B2 JP S6043898 B2 JPS6043898 B2 JP S6043898B2 JP 53040287 A JP53040287 A JP 53040287A JP 4028778 A JP4028778 A JP 4028778A JP S6043898 B2 JPS6043898 B2 JP S6043898B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- alloy
- resistance
- head
- wear resistance
- 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
Landscapes
- Magnetic Heads (AREA)
- Soft Magnetic Materials (AREA)
Description
【発明の詳細な説明】
本発明は耐摩耗性にすぐれかつ耐歪性にすぐれた磁気ヘ
ッドに適した磁性合金に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic alloy that has excellent wear resistance and distortion resistance and is suitable for magnetic heads.
従来テープレコーダ用ヘッド合金としてはＮｉ−Ｆｅ系
磁性合金、即ちパーマロイが利用されてきたが、耐摩耗
性が悪いことから近年高硬度パーマロイと称されるいく
つかの合金が提示され、実用されている。Conventionally, Ni-Fe magnetic alloys, namely permalloy, have been used as head alloys for tape recorders, but due to poor wear resistance, several alloys called high-hardness permalloys have been proposed and put into practical use in recent years. There is.
しかしこれらのパーマロイは原料が高価であること、あ
るいはＴｉ、Ａｌ等を含むため熱処理がむずカルいこと
等から高価である難点があつた。そこで本発明において
はＣｒ、Ｎｂ、Ｍｎという一般的な成分を用い、かつ熱
処理は炉冷相当（５０゜／Ｈ〜３０００／ Ｈ）で磁歪
が−２×１０−０〜１×１０−０になり耐摩耗性、耐歪
性にすぐれた合金を提示するものである。However, these permalloys have the disadvantage that they are expensive because their raw materials are expensive, and because they contain Ti, Al, etc., heat treatment is difficult. Therefore, in the present invention, common components such as Cr, Nb, and Mn are used, and the heat treatment is equivalent to furnace cooling (50°/H to 3000/H) to reduce the magnetostriction to -2 x 10-0 to 1 x 10-0. This provides an alloy with excellent wear resistance and strain resistance.
先に我々はＮｉ−Ｎｂ−Ｍｏ−Ｆｅ系で硬度がそれほど
高くなくてもＮｉ−Ｆｅ−Ｍｏ系に比べ耐摩耗性がよい
ことを提示したが本発明においてはＭｏをより安価なＣ
ｒにおきかえるとともに耐歪性を考慮しＦｅ量をコント
ロールすることによりさらにヘッド用として実用上適し
た合金を得た。Previously, we showed that the Ni-Nb-Mo-Fe system has better wear resistance than the Ni-Fe-Mo system even if its hardness is not so high, but in the present invention, we replaced Mo with the cheaper C.
By changing the alloy to r and controlling the amount of Fe in consideration of strain resistance, an alloy that is more practically suitable for use in heads was obtained.
実施例を説明する。An example will be explained.
所定部分に配合したインゴットを溶製し熱間、冷間加工
をほどこしてＯ、５をの板材を得た。The ingots blended in predetermined portions were melted and subjected to hot and cold working to obtain O.5 plate materials.
この板から４５φ×３３φリングと１０×１５０の長方
形小片、さらにヘッドシールドケース（但し頭穴なし）
を絞り加工により得た。これに１１００℃×渕→徐冷の
処理を施し通常状態での磁気特性、エポキシ樹脂モール
ド後の磁気特性、ストレインゲージ法による磁歪、オー
トリバース型テープレコーダ実装による耐摩耗性を調べ
た。結果を表１、表２に示す。但し表２中の耐摩耗性は
、Ｃ−６０テープ４００Ｈ実走後の摩耗量て表わした。
表１
この結果から明らかなように本発明成分はモールドによ
る圧縮の応力に対し磁歪が適切な範囲であり耐モールド
性、即ち耐歪性がよく耐摩耗性にすぐれている。From this board, a 45φ x 33φ ring and a 10 x 150 rectangular piece, and a head shield case (but without a head hole)
was obtained by drawing. This was subjected to a process of slow cooling from 1100°C to the edge, and its magnetic properties under normal conditions, magnetic properties after epoxy resin molding, magnetostriction using the strain gauge method, and wear resistance when mounted on an auto-reverse tape recorder were investigated. The results are shown in Tables 1 and 2. However, the abrasion resistance in Table 2 is expressed as the amount of wear after actual running of C-60 tape 400H.
Table 1 As is clear from these results, the components of the present invention have magnetostriction within an appropriate range for the compressive stress caused by molding, have good mold resistance, that is, good strain resistance, and are excellent in abrasion resistance.
またＡｌ，Ｔｉ等が入つていないので通常の水素炉処理
（水素露点−５０℃）でも着色することなく特に外観を
重視するケース用としては有利である。本発明において
Ｆｅを５．０〜１１．８％としたのはこれ以上少なくな
ると磁気特性が充分でなく、これ以上多くなると耐歪性
が悪くなりやすいためである。Furthermore, since it does not contain Al, Ti, etc., it does not become colored even when treated in a normal hydrogen furnace (hydrogen dew point -50°C), making it advantageous for cases where appearance is particularly important. The reason why Fe is set at 5.0 to 11.8% in the present invention is that if the amount is less than this, the magnetic properties are insufficient, and if it is more than this, the strain resistance tends to deteriorate.
Ｎｂは耐摩耗性を上げるために効果があるが０．５％以
下だとその効果が少く３％を越えると価格的に不利であ
る。Nb is effective in increasing wear resistance, but if it is less than 0.5%, the effect is small, and if it exceeds 3%, it is disadvantageous in terms of cost.
ＣｒとＭｎは所定成分以外では磁気特性が不適となる。
以上述べたように本発明合金は成分の簡単な組合せによ
り安価で耐摩耗性および耐歪性の優れたヘッドコア・ヘ
ッドケース、なかでもヘッドケースを作るうえで有用で
ある。Cr and Mn have unsuitable magnetic properties when the components are not in the specified range.
As described above, the alloy of the present invention is useful for producing head cores and head cases, especially head cases, which are inexpensive and have excellent wear resistance and distortion resistance due to the simple combination of ingredients.
Claims (1)
．０％、Ｃｒ０．５〜１０．０％、Ｍｎ３％以下残部Ｎ
ｉからなりかつ磁歪が−２×１０＾−＾６〜１×１０＾
−＾６である耐摩耗性および耐歪性の優れた磁気ヘッド
用磁性合金。1% by weight: Fe5.0-11.8%, Nb0.5-3
．． 0%, Cr0.5-10.0%, Mn3% or less balance N
i and magnetostriction is -2×10^-^6 to 1×10^
-^6, a magnetic alloy for magnetic heads with excellent wear resistance and strain resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53040287A JPS6043898B2 (en) | 1978-04-07 | 1978-04-07 | Magnetic alloy for magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53040287A JPS6043898B2 (en) | 1978-04-07 | 1978-04-07 | Magnetic alloy for magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54133422A JPS54133422A (en) | 1979-10-17 |
| JPS6043898B2 true JPS6043898B2 (en) | 1985-10-01 |
Family
ID=12576383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53040287A Expired JPS6043898B2 (en) | 1978-04-07 | 1978-04-07 | Magnetic alloy for magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6043898B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0233600A (en) * | 1988-07-22 | 1990-02-02 | Tech Res & Dev Inst Of Japan Def Agency | Arming of fuse for missile |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3837933A (en) * | 1971-03-13 | 1974-09-24 | Foundation Res Inst Electric A | Heat treated magnetic material |
-
1978
- 1978-04-07 JP JP53040287A patent/JPS6043898B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0233600A (en) * | 1988-07-22 | 1990-02-02 | Tech Res & Dev Inst Of Japan Def Agency | Arming of fuse for missile |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54133422A (en) | 1979-10-17 |
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