JPS57116708A - Manufacture of metallic magnetic powder - Google Patents
Manufacture of metallic magnetic powderInfo
- Publication number
- JPS57116708A JPS57116708A JP56002314A JP231481A JPS57116708A JP S57116708 A JPS57116708 A JP S57116708A JP 56002314 A JP56002314 A JP 56002314A JP 231481 A JP231481 A JP 231481A JP S57116708 A JPS57116708 A JP S57116708A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- compound
- metallic
- iron
- under heating
- 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
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Hard Magnetic Materials (AREA)
Abstract
PURPOSE: To obtain metallic magnetic powder with superior magnetic characteristics by simultaneously sticking an Al compound and an Si compound to powder of a metallic compound consisting essentially of iron oxyhydroxide or iron oxide, granulating the powder, and carrying out reduction under heating.
CONSTITUTION: An Al compound and an Si compound are simultaneously stuck to the particle surfaces of powder of a metallic compound consisting essentially of iron oxyhydroxide or iron oxide. The powder is granulated and reduced under heating at atout 300W600°C in a reducing gaseous atmosphere of gaseuous hydrogen or the like. By this method the reduction under heating can be carried out sufficiently and uniformly while effectively inhibiting sintering among the granules and the particles of the powder and the deformation of the particles. As a result, iron-base metallic magentic powder with superior magnetic characteristics is obtd.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56002314A JPS57116708A (en) | 1981-01-10 | 1981-01-10 | Manufacture of metallic magnetic powder |
US06/337,149 US4400337A (en) | 1981-01-10 | 1982-01-05 | Method for production of metal magnetic particles |
EP82100091A EP0056257B1 (en) | 1981-01-10 | 1982-01-08 | Method for production of metal magnetic particles |
DE8282100091T DE3261979D1 (en) | 1981-01-10 | 1982-01-08 | Method for production of metal magnetic particles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56002314A JPS57116708A (en) | 1981-01-10 | 1981-01-10 | Manufacture of metallic magnetic powder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57116708A true JPS57116708A (en) | 1982-07-20 |
JPH0152442B2 JPH0152442B2 (en) | 1989-11-08 |
Family
ID=11525870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56002314A Granted JPS57116708A (en) | 1981-01-10 | 1981-01-10 | Manufacture of metallic magnetic powder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57116708A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0441235U (en) * | 1990-08-09 | 1992-04-08 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52134858A (en) * | 1976-05-07 | 1977-11-11 | Kanto Denka Kogyo Kk | Method of making magnetic recording magnetic powder containing iron as main constituent |
-
1981
- 1981-01-10 JP JP56002314A patent/JPS57116708A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52134858A (en) * | 1976-05-07 | 1977-11-11 | Kanto Denka Kogyo Kk | Method of making magnetic recording magnetic powder containing iron as main constituent |
Also Published As
Publication number | Publication date |
---|---|
JPH0152442B2 (en) | 1989-11-08 |
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