JPS63186402A - 高抗磁力を有するフェライト磁石の製造方法 - Google Patents
高抗磁力を有するフェライト磁石の製造方法Info
- Publication number
- JPS63186402A JPS63186402A JP62018844A JP1884487A JPS63186402A JP S63186402 A JPS63186402 A JP S63186402A JP 62018844 A JP62018844 A JP 62018844A JP 1884487 A JP1884487 A JP 1884487A JP S63186402 A JPS63186402 A JP S63186402A
- Authority
- JP
- Japan
- Prior art keywords
- cr2o3
- al2o3
- ferrite magnet
- sio2
- cao
- 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
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 27
- 239000000203 mixture Substances 0.000 claims abstract description 13
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 18
- 239000013078 crystal Substances 0.000 abstract description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052593 corundum Inorganic materials 0.000 abstract description 10
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract description 10
- 229910052681 coesite Inorganic materials 0.000 abstract description 9
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 9
- 239000000377 silicon dioxide Substances 0.000 abstract description 9
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 9
- 229910052682 stishovite Inorganic materials 0.000 abstract description 9
- 229910052905 tridymite Inorganic materials 0.000 abstract description 9
- 230000004907 flux Effects 0.000 abstract description 7
- 230000006872 improvement Effects 0.000 abstract description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005245 sintering Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 6
- 230000007423 decrease Effects 0.000 description 7
- 239000000654 additive Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- -1 0.3wt% to 1.0wt% Chemical compound 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000005381 magnetic domain Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Landscapes
- Compounds Of Iron (AREA)
- Magnetic Ceramics (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62018844A JPS63186402A (ja) | 1987-01-28 | 1987-01-28 | 高抗磁力を有するフェライト磁石の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62018844A JPS63186402A (ja) | 1987-01-28 | 1987-01-28 | 高抗磁力を有するフェライト磁石の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63186402A true JPS63186402A (ja) | 1988-08-02 |
| JPH0542128B2 JPH0542128B2 (enrdf_load_stackoverflow) | 1993-06-25 |
Family
ID=11982867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62018844A Granted JPS63186402A (ja) | 1987-01-28 | 1987-01-28 | 高抗磁力を有するフェライト磁石の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63186402A (enrdf_load_stackoverflow) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6419847B1 (en) | 1998-11-26 | 2002-07-16 | Sumitomo Special Metals Co., Ltd. | Ferrite magnet powder and magnet using said magnet powder, and method for preparing them |
| US6478982B1 (en) | 1999-11-08 | 2002-11-12 | Sumitomo Special Metals Co. Ltd. | Ferrite magnet powder and magnet using the magnet powder, and method for preparing them |
| US6902685B2 (en) | 2001-05-24 | 2005-06-07 | Neomax Co., Ltd. | Oxide magnetic material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57145034A (en) * | 1981-03-02 | 1982-09-07 | Magune Kk | Cleavable magnetic iron oxide and its production |
| JPS6191017A (ja) * | 1984-07-25 | 1986-05-09 | エマン・ユジマツグ・エス・ア− | 酸化物をベ−スとする永久磁石用異方性磁性物質 |
-
1987
- 1987-01-28 JP JP62018844A patent/JPS63186402A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57145034A (en) * | 1981-03-02 | 1982-09-07 | Magune Kk | Cleavable magnetic iron oxide and its production |
| JPS6191017A (ja) * | 1984-07-25 | 1986-05-09 | エマン・ユジマツグ・エス・ア− | 酸化物をベ−スとする永久磁石用異方性磁性物質 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6419847B1 (en) | 1998-11-26 | 2002-07-16 | Sumitomo Special Metals Co., Ltd. | Ferrite magnet powder and magnet using said magnet powder, and method for preparing them |
| US6478982B1 (en) | 1999-11-08 | 2002-11-12 | Sumitomo Special Metals Co. Ltd. | Ferrite magnet powder and magnet using the magnet powder, and method for preparing them |
| US6902685B2 (en) | 2001-05-24 | 2005-06-07 | Neomax Co., Ltd. | Oxide magnetic material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0542128B2 (enrdf_load_stackoverflow) | 1993-06-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term |