JPS5563806A - Manufacture of permanent magnet material - Google Patents
Manufacture of permanent magnet materialInfo
- Publication number
- JPS5563806A JPS5563806A JP13691878A JP13691878A JPS5563806A JP S5563806 A JPS5563806 A JP S5563806A JP 13691878 A JP13691878 A JP 13691878A JP 13691878 A JP13691878 A JP 13691878A JP S5563806 A JPS5563806 A JP S5563806A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- retentivity
- rare
- replacing
- copper
- 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
Abstract
PURPOSE: To improve retentivity without lowering residual magnetic flux density, by replacing with manganese a part of copper in a magnet alloy consisting of rare- earth elements and cobalt added with copper.
CONSTITUTION: An ingot or sintered powder of the composition expressed by the general formula R[CO1-u-v(Cu+Mn)uFev]z, where R represents one or more rare-earth elements, such as Sm, Ce, Y, is melted at 1100W1250°C and further it is subjected to aging at 500W900°C, and thereby a permanent magnet is formed. Here, u, v, and z are such that 0.02<u≤0.25, 0.02≤v≤0.45, 7<z<8.8. By replacing a part of Cu with Mn in this way, it is possible to improve retentivity without lowering residual magnetic flux density. Further, by adding one or more of Hf, Zr, Ti, V, Nb, Ta, Si, Mg, Zn, Mo, Cr, Al, it is possible to make it easy to operate heat treatment for exhibiting retentivity.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13691878A JPS5563806A (en) | 1978-11-07 | 1978-11-07 | Manufacture of permanent magnet material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13691878A JPS5563806A (en) | 1978-11-07 | 1978-11-07 | Manufacture of permanent magnet material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5563806A true JPS5563806A (en) | 1980-05-14 |
Family
ID=15186610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13691878A Pending JPS5563806A (en) | 1978-11-07 | 1978-11-07 | Manufacture of permanent magnet material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5563806A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56166357A (en) * | 1980-05-23 | 1981-12-21 | Shin Etsu Chem Co Ltd | Permanent magnet alloy containing rare earth metal |
JPS58151447A (en) * | 1982-03-01 | 1983-09-08 | Matsushita Electric Ind Co Ltd | Permanent magnet material and its manufacture |
JPS58157939A (en) * | 1982-03-10 | 1983-09-20 | Matsushita Electric Ind Co Ltd | Permanent magnet alloy |
-
1978
- 1978-11-07 JP JP13691878A patent/JPS5563806A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56166357A (en) * | 1980-05-23 | 1981-12-21 | Shin Etsu Chem Co Ltd | Permanent magnet alloy containing rare earth metal |
JPH0227426B2 (en) * | 1980-05-23 | 1990-06-18 | Shinetsu Chem Ind Co | |
JPS58151447A (en) * | 1982-03-01 | 1983-09-08 | Matsushita Electric Ind Co Ltd | Permanent magnet material and its manufacture |
JPS58157939A (en) * | 1982-03-10 | 1983-09-20 | Matsushita Electric Ind Co Ltd | Permanent magnet alloy |
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