JPS58157941A - Permanent magnet alloy - Google Patents
Permanent magnet alloyInfo
- Publication number
- JPS58157941A JPS58157941A JP57039812A JP3981282A JPS58157941A JP S58157941 A JPS58157941 A JP S58157941A JP 57039812 A JP57039812 A JP 57039812A JP 3981282 A JP3981282 A JP 3981282A JP S58157941 A JPS58157941 A JP S58157941A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- magnet alloy
- composition
- heat treatment
- alloy
- 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
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- Hard Magnetic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はＲ２’０１７系金属間化合物（ただしＲは希土
類金属）を主体とする永久磁石合金に関するものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a permanent magnet alloy mainly composed of an R2'017 intermetallic compound (where R is a rare earth metal).
従来のＲ２Ｃ０１？系金属間化合物を主体とした永久磁
石合金としては、その配合組成にＳｓ 、 ｃｏ。Conventional R2C01? Permanent magnetic alloys mainly composed of intermetallic compounds include Ss and co.
ｗｅ、ｃｕの基本４元素あるいはそれに添加物を加えた
もので構成されており、高性能な永久磁石合金が得られ
るとされていた。It is composed of the four basic elements of we and cu, or additives added to them, and was said to produce a high-performance permanent magnet alloy.
しかしながら、従来のこの種の永久磁石合金に共通して
いえることは高い飽和磁束密度（Ｂｒ）を得るために多
量のｙｅを含んでいた。このため、保磁力（Ｈｅ）がか
なり犠牲になっていた。However, a common feature of conventional permanent magnet alloys of this type is that they contain a large amount of ye in order to obtain a high saturation magnetic flux density (Br). For this reason, the coercive force (He) was considerably sacrificed.
このようなことから最近ではこの保磁力（Ｈｅ）を高め
るために添加物を加えたり、温度９時間を段階的に変化
させるなどの複雑な熱処理工程が開発されているがいま
だ、十分満足できるものが得られるにいたっていない。For this reason, complex heat treatment processes such as adding additives and changing the temperature stepwise over 9 hours have recently been developed to increase the coercive force (He), but these are still not fully satisfactory. has not yet been achieved.
本発明は以上のような従来の欠点を除去するものであり
、焼結後複雑な熱処理をしなくても安定した保磁力の得
られる永久磁石合金を提供することを目的とするもので
ある。The present invention eliminates the above-mentioned conventional drawbacks, and aims to provide a permanent magnet alloy that can obtain stable coercive force without complicated heat treatment after sintering.
以下、本発明の一実施例について説明する。An embodiment of the present invention will be described below.
重量％で２７％のＳＢ、５１．１％のｃｏ 、１ｏａ
％のＯｕ、８％のＭｎ、３％のＭ（Ｍとして２．２％の
Ｚｒと０．８％のＺｎ ）からなる材料を真空溶解しｓ
Ｎ２ ガスを用いたジェットミル粉砕機により微粉砕
粉を作り、この微粉砕粉を１２ＫＯ６の磁界中でａｔｏ
ｎ／ｃＪの圧力で金型を用いて成形する。Weight% 27% SB, 51.1% co, 1 oa
A material consisting of % Ou, 8% Mn, and 3% M (2.2% Zr and 0.8% Zn as M) was melted in vacuum.
Finely pulverized powder is made using a jet mill using N2 gas, and this finely pulverized powder is atomized in a magnetic field of 12KO6.
Molding is performed using a mold at a pressure of n/cJ.
この成形体を真空中で１１８ ｏ’ｃの温度で６０分間
焼結し、８００°Ｃまでを３〜６°Ｏ１５＋で急冷し、
その後は２ｏＯ０Ｃまで１０°Ｃ／分にて徐冷して永久
磁石合金を得た。This compact was sintered in vacuum at a temperature of 118 o'c for 60 minutes, quenched to 800°C at 3-6° O15+,
Thereafter, it was slowly cooled to 2oOOC at a rate of 10°C/min to obtain a permanent magnet alloy.
この永久磁石合金の磁気特性は下記の第１表に示す通り
である。さらにこの永久磁石合金を従来と同様に真空中
で８００°Ｃにて６０分間加熱しその後２００８Ｃまで
６°Ｃ１５＋で徐冷する熱処理を行ったものの磁気特性
を比較のため第１表に並記した。The magnetic properties of this permanent magnet alloy are shown in Table 1 below. Furthermore, this permanent magnet alloy was heat treated in a vacuum at 800°C for 60 minutes and then slowly cooled to 2008°C at 6°C 15+, and the magnetic properties are listed in Table 1 for comparison. .
第 １ 表
この結果、本発明の永久磁石合金は熱処理をしてもしな
くてもその性能に大差のないことが明らかである。Table 1 As a result, it is clear that there is no significant difference in performance of the permanent magnet alloy of the present invention whether it is heat treated or not.
また、添加物Ｍを変えた場合の磁気特性を第２表に示す
が、これは全て前述の製造法と同じ方法で製造され、熱
処理を施さないもののデータである。Further, Table 2 shows the magnetic properties when the additive M is changed, but all of these data are for products manufactured by the same method as described above and without heat treatment.
以上のよ、うに本発明の永久磁石合金は構成されるため
、熱処理を施さずに安定した磁気特性が得られ、生産性
の向上が計れコスト面でも有利になるなどの効果をもち
、工業的価値の大なるものである。As described above, since the permanent magnet alloy of the present invention is constructed, stable magnetic properties can be obtained without heat treatment, productivity can be improved, and it is advantageous in terms of cost. It is of great value.
Claims (1)
合せ）、４３〜６１％のＣＯ，Ｓ〜１２％のＣｕ、ｓ
〜１２％のＭｎ、１〜５％のＭ（ただしＭはＺｒ 、Ｚ
ｎ 、 Ｔｉ 、ＨｆおよびＭＯのうち少なくとも１種
以上）の組成からなることを特徴とする永久磁石合金。[Claims] 22 to 28% R (RFib, a combination of one or more rare earth metals, mainly aS), 43 to 61% CO, and S to 12% by weight. Cu,s
~12% Mn, 1~5% M (where M is Zr, Z
A permanent magnet alloy characterized by having a composition of at least one of n, Ti, Hf, and MO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57039812A JPS58157941A (en) | 1982-03-12 | 1982-03-12 | Permanent magnet alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57039812A JPS58157941A (en) | 1982-03-12 | 1982-03-12 | Permanent magnet alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58157941A true JPS58157941A (en) | 1983-09-20 |
Family
ID=12563375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57039812A Pending JPS58157941A (en) | 1982-03-12 | 1982-03-12 | Permanent magnet alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58157941A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111489888A (en) * | 2019-01-28 | 2020-08-04 | 日立金属株式会社 | Method for producing R-T-B sintered magnet |
-
1982
- 1982-03-12 JP JP57039812A patent/JPS58157941A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111489888A (en) * | 2019-01-28 | 2020-08-04 | 日立金属株式会社 | Method for producing R-T-B sintered magnet |
| CN111489888B (en) * | 2019-01-28 | 2024-01-02 | 株式会社博迈立铖 | Method for producing R-T-B sintered magnet |
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