JPS54152198A - Manufacture of permanent magnet - Google Patents
Manufacture of permanent magnetInfo
- Publication number
- JPS54152198A JPS54152198A JP6014378A JP6014378A JPS54152198A JP S54152198 A JPS54152198 A JP S54152198A JP 6014378 A JP6014378 A JP 6014378A JP 6014378 A JP6014378 A JP 6014378A JP S54152198 A JPS54152198 A JP S54152198A
- Authority
- JP
- Japan
- Prior art keywords
- ferromagnetic powder
- magnetic field
- ferrite
- mold
- acid amide
- 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 obtain permanent magnet of excellent hear resistance and good magnetic characteristics by orientating, molding, and soldifying ferromagnetic powder by applying a magnetic field to a molten compound containing a ferromagnetic powder, a polyamide resin, and toluene sulfonic acid amide.
CONSTITUTION: A compound containing a ferromagnetic powder, e.g., Ba-ferrite, Sr-ferrite, etc., a polyamide resin, and toluene sulfonic acid amide is melted and then subjected to a magnetic field for the orientation, molding, and solidification of the ferromagnetic powder. For example, a molten compound composed of 86% Sr-ferrite of average grain size of 1.3 microns, 13.5% a polyamide resin, and 0.5% toluenesulfonic acid amide is cast into a mold at 270°C, and then the mold is pressed while being kept at 260°C and subjected to a magnetic field of a 1000 Oe in the direaction A-B. After cooling the mold, the magnetic field is released to obtain a rectangular molding. Thus, it is possible to make magnetic characteristics better by orientating the ferromagnetic powder and also to stabilize characteristic properties and shape even at a high temperature above 170°C.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53060143A JPS6037604B2 (en) | 1978-05-19 | 1978-05-19 | Permanent magnet manufacturing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53060143A JPS6037604B2 (en) | 1978-05-19 | 1978-05-19 | Permanent magnet manufacturing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54152198A true JPS54152198A (en) | 1979-11-30 |
JPS6037604B2 JPS6037604B2 (en) | 1985-08-27 |
Family
ID=13133618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53060143A Expired JPS6037604B2 (en) | 1978-05-19 | 1978-05-19 | Permanent magnet manufacturing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6037604B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59165403A (en) * | 1983-03-10 | 1984-09-18 | Matsushita Electric Ind Co Ltd | Resin magnet composition substance |
JPS601807A (en) * | 1983-06-17 | 1985-01-08 | Daiseru Hiyurusu Kk | Composition of magnetic material resin |
JPS60130104A (en) * | 1983-12-19 | 1985-07-11 | Daiseru Hiyurusu Kk | Magnetic composition |
JPS60136207A (en) * | 1983-12-23 | 1985-07-19 | Shin Kobe Electric Mach Co Ltd | Forming material for resin magnet and manufacture thereof |
JPS62212457A (en) * | 1986-03-12 | 1987-09-18 | Daiseru Hiyurusu Kk | Polyamide resin composition |
-
1978
- 1978-05-19 JP JP53060143A patent/JPS6037604B2/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59165403A (en) * | 1983-03-10 | 1984-09-18 | Matsushita Electric Ind Co Ltd | Resin magnet composition substance |
JPH0458681B2 (en) * | 1983-03-10 | 1992-09-18 | Matsushita Electric Ind Co Ltd | |
JPS601807A (en) * | 1983-06-17 | 1985-01-08 | Daiseru Hiyurusu Kk | Composition of magnetic material resin |
JPH0578162B2 (en) * | 1983-06-17 | 1993-10-28 | Daicel Huels Kk | |
JPS60130104A (en) * | 1983-12-19 | 1985-07-11 | Daiseru Hiyurusu Kk | Magnetic composition |
JPS60136207A (en) * | 1983-12-23 | 1985-07-19 | Shin Kobe Electric Mach Co Ltd | Forming material for resin magnet and manufacture thereof |
JPS62212457A (en) * | 1986-03-12 | 1987-09-18 | Daiseru Hiyurusu Kk | Polyamide resin composition |
Also Published As
Publication number | Publication date |
---|---|
JPS6037604B2 (en) | 1985-08-27 |
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