JPS5782446A - Rare earth element-cobalt permanent magnet - Google Patents
Rare earth element-cobalt permanent magnetInfo
- Publication number
- JPS5782446A JPS5782446A JP55157907A JP15790780A JPS5782446A JP S5782446 A JPS5782446 A JP S5782446A JP 55157907 A JP55157907 A JP 55157907A JP 15790780 A JP15790780 A JP 15790780A JP S5782446 A JPS5782446 A JP S5782446A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- rare earth
- superior
- earth element
- ingot
- 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.)
- Granted
Links
Abstract
PURPOSE: To develop a rare earth element-Co permanent magnet with superior magnetic characteristics by casting an alloy consisting of Co, Sm and a specified metallic element so that most of the solidified structure is made columnar, pulverizing the ingot, and binding the powder with a binder.
CONSTITUTION: An Sm-Co-M alloy consisting of 21W28% Sm, 2.0W10% Al, Ag, Au, Pd, Pt, Ni, Zn, In, Sn or Pb which may be combined with Cu, and the balance Co is melted in an inert gaseous atmosphere and cast in a mold 1. By controlling the cooling rate after the casting, the cast alloy is solidified so that most of the solidified structure is composed of columnar crystals B. The ingot is subjected to soln. heat treatment, aged, and pulverized. This powder is press- molded with a polymer such as epoxy resin as a binder in a magnetic field, and the polymer is cured. Thus, a permanent magnet composed chiefly of Sm2Co17 type crystals and having superior magnetic characteristics such as superior re- sidual magnetic flux density and coercive force is obtd.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55157907A JPS5782446A (en) | 1980-11-10 | 1980-11-10 | Rare earth element-cobalt permanent magnet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55157907A JPS5782446A (en) | 1980-11-10 | 1980-11-10 | Rare earth element-cobalt permanent magnet |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5782446A true JPS5782446A (en) | 1982-05-22 |
JPS6111304B2 JPS6111304B2 (en) | 1986-04-02 |
Family
ID=15660044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55157907A Granted JPS5782446A (en) | 1980-11-10 | 1980-11-10 | Rare earth element-cobalt permanent magnet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5782446A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01158629A (en) * | 1987-07-27 | 1989-06-21 | Seiko Epson Corp | Actuator |
JPH01294234A (en) * | 1987-08-27 | 1989-11-28 | Seiko Epson Corp | Actuator |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62201101A (en) * | 1986-02-27 | 1987-09-04 | 丸栄日産株式会社 | Conductive footwear sole |
-
1980
- 1980-11-10 JP JP55157907A patent/JPS5782446A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01158629A (en) * | 1987-07-27 | 1989-06-21 | Seiko Epson Corp | Actuator |
JPH01294234A (en) * | 1987-08-27 | 1989-11-28 | Seiko Epson Corp | Actuator |
Also Published As
Publication number | Publication date |
---|---|
JPS6111304B2 (en) | 1986-04-02 |
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