JPS57116712A - Manufacture of metallic magnetic powder - Google Patents
Manufacture of metallic magnetic powderInfo
- Publication number
- JPS57116712A JPS57116712A JP56002318A JP231881A JPS57116712A JP S57116712 A JPS57116712 A JP S57116712A JP 56002318 A JP56002318 A JP 56002318A JP 231881 A JP231881 A JP 231881A JP S57116712 A JPS57116712 A JP S57116712A
- 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.)
- Pending
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 sticking a Zn compound to powder of a metallic compound consisting essentially of iron oxyhydroxide or iron oxide, heat treating the powder, further sticking an Si compound to the powder, granulating this powder, and carrying out reduction under heating.
CONSTITUTION: A Zn compound is stuck to the particle surfaces of powder of a metallic compound consisting essentially of iron oxyhydroxide or iron oxide, and the powder is heat treated at 200W500°C. After further sticking an Si compound to the particle surfaces, the powder is granulated and reduced under heating at about 300W600°C in a reducing atmosphere of gaseous 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 magnetic powder with superior magnetic characteristics is obtd.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56002318A JPS57116712A (en) | 1981-01-10 | 1981-01-10 | Manufacture of metallic magnetic powder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56002318A JPS57116712A (en) | 1981-01-10 | 1981-01-10 | Manufacture of metallic magnetic powder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57116712A true JPS57116712A (en) | 1982-07-20 |
Family
ID=11525973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56002318A Pending JPS57116712A (en) | 1981-01-10 | 1981-01-10 | Manufacture of metallic magnetic powder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57116712A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02280301A (en) * | 1989-04-20 | 1990-11-16 | Toda Kogyo Corp | Magnetic iron oxide particle powder |
-
1981
- 1981-01-10 JP JP56002318A patent/JPS57116712A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02280301A (en) * | 1989-04-20 | 1990-11-16 | Toda Kogyo Corp | Magnetic iron oxide particle powder |
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