JPS56155508A - Manufacture of oxide permanent magnet - Google Patents
Manufacture of oxide permanent magnetInfo
- Publication number
- JPS56155508A JPS56155508A JP5768780A JP5768780A JPS56155508A JP S56155508 A JPS56155508 A JP S56155508A JP 5768780 A JP5768780 A JP 5768780A JP 5768780 A JP5768780 A JP 5768780A JP S56155508 A JPS56155508 A JP S56155508A
- Authority
- JP
- Japan
- Prior art keywords
- mixed
- powders
- sintered
- mold
- average grain
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000000843 powder Substances 0.000 abstract 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
- C04B35/2683—Other ferrites containing alkaline earth metals or lead
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Magnetic Ceramics (AREA)
- Hard Magnetic Materials (AREA)
Abstract
PURPOSE:To contrive the improvement of a magnetic characteristic without loosing moldability by a method wherein powders which are of over 1.0mum and under 1.0mum in average grain size are mixed up to mold a magnetic field and sintered, in the grinding process of MO.6Fe2O3 (M is a kind of Ba, Sr and Pb.). CONSTITUTION:Raw materials BaCO3 and Fe2O3 are weighed, mixed with alumina for inhibiting a crystal growth such as calcium carbonate for accelerating ferrous and baked primarily and then, ground by means of a wet grinder to obtain the powders whose average grain sizes are over 1.0mum and under 1.0mum. The both powders are mixed up together to mold the field and to be sintered. Thereby, the orientation degree and density can be improved and the magnetic characteristic enables to largely be improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55057687A JPS6050324B2 (en) | 1980-04-30 | 1980-04-30 | Manufacturing method of oxide permanent magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55057687A JPS6050324B2 (en) | 1980-04-30 | 1980-04-30 | Manufacturing method of oxide permanent magnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56155508A true JPS56155508A (en) | 1981-12-01 |
| JPS6050324B2 JPS6050324B2 (en) | 1985-11-08 |
Family
ID=13062848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55057687A Expired JPS6050324B2 (en) | 1980-04-30 | 1980-04-30 | Manufacturing method of oxide permanent magnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6050324B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0272932A3 (en) * | 1986-12-24 | 1989-06-14 | Maghemite Inc. | Production of strontium ferrite magnets |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007129168A (en) * | 2005-11-07 | 2007-05-24 | Kaneka Corp | Resin magnet composition and method of manufacturing same |
-
1980
- 1980-04-30 JP JP55057687A patent/JPS6050324B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0272932A3 (en) * | 1986-12-24 | 1989-06-14 | Maghemite Inc. | Production of strontium ferrite magnets |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6050324B2 (en) | 1985-11-08 |
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