JPS57116705A - Manufacture of metallic magnetic powder - Google Patents
Manufacture of metallic magnetic powderInfo
- Publication number
- JPS57116705A JPS57116705A JP56002311A JP231181A JPS57116705A JP S57116705 A JPS57116705 A JP S57116705A JP 56002311 A JP56002311 A JP 56002311A JP 231181 A JP231181 A JP 231181A JP S57116705 A JPS57116705 A JP S57116705A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- compound
- particles
- metallic
- iron
- 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 an Al compound and an Si compound to powder of a metallic compound consisting essentially of iron oxyhydroxide or iron oxide, heat treating the powder, and carrying out reduction underheating.
CONSTITUTION: An Al compound and an Si compound are stuck to the particle surfaces of powder of a metallic compound consisting essentially of iron oxyhydroxide or iron oxide. The powder is heat treated at 500W1,000°C, and holes formed by the dehydration in the particles are sealed to decrease the surface area. Reduction under heating is then carried out at about 300W600°C in a reducting atmosphere of gaseous hydrogen or the like. By this method sintering among the particles of the powder and the deformation of the particles are inhibited effectively, and 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 |
---|---|---|---|
JP56002311A JPS57116705A (en) | 1981-01-10 | 1981-01-10 | Manufacture of metallic magnetic powder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56002311A JPS57116705A (en) | 1981-01-10 | 1981-01-10 | Manufacture of metallic magnetic powder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57116705A true JPS57116705A (en) | 1982-07-20 |
Family
ID=11525800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56002311A Pending JPS57116705A (en) | 1981-01-10 | 1981-01-10 | Manufacture of metallic magnetic powder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57116705A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03116414A (en) * | 1990-08-31 | 1991-05-17 | Konica Corp | Magnetic recording medium |
-
1981
- 1981-01-10 JP JP56002311A patent/JPS57116705A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03116414A (en) * | 1990-08-31 | 1991-05-17 | Konica Corp | Magnetic recording medium |
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