JPH0340487B2 - - Google Patents
Info
- Publication number
- JPH0340487B2 JPH0340487B2 JP56084431A JP8443181A JPH0340487B2 JP H0340487 B2 JPH0340487 B2 JP H0340487B2 JP 56084431 A JP56084431 A JP 56084431A JP 8443181 A JP8443181 A JP 8443181A JP H0340487 B2 JPH0340487 B2 JP H0340487B2
- Authority
- JP
- Japan
- Prior art keywords
- poles
- magnetic
- permanent magnet
- cylindrical
- magnet
- 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.)
- Expired - Lifetime
Links
- 229910052712 strontium Inorganic materials 0.000 claims description 6
- 229910052788 barium Inorganic materials 0.000 claims description 5
- 229910052745 lead Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000004907 flux Effects 0.000 description 21
- 239000002245 particle Substances 0.000 description 13
- 229910000859 α-Fe Inorganic materials 0.000 description 13
- 230000005415 magnetization Effects 0.000 description 8
- 238000005245 sintering Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000005405 multipole Effects 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 2
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0205—Magnetic circuits with PM in general
- H01F7/021—Construction of PM
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56084431A JPS57199205A (en) | 1981-06-03 | 1981-06-03 | Cylindrical permanent magnet and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56084431A JPS57199205A (en) | 1981-06-03 | 1981-06-03 | Cylindrical permanent magnet and manufacture thereof |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6809188A Division JPH01144354A (ja) | 1988-03-24 | 1988-03-24 | ステッピングモーター用ロータ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57199205A JPS57199205A (en) | 1982-12-07 |
| JPH0340487B2 true JPH0340487B2 (ru) | 1991-06-19 |
Family
ID=13830390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56084431A Granted JPS57199205A (en) | 1981-06-03 | 1981-06-03 | Cylindrical permanent magnet and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57199205A (ru) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59216453A (ja) * | 1983-05-20 | 1984-12-06 | Hitachi Metals Ltd | 円筒状永久磁石の製造方法 |
| JPS59224103A (ja) * | 1983-06-03 | 1984-12-17 | Tohoku Metal Ind Ltd | 円筒状永久磁石 |
| JPS60108184U (ja) * | 1983-12-24 | 1985-07-23 | ティーディーケイ株式会社 | 円筒状フエライト磁石 |
| JPS61237405A (ja) * | 1985-04-12 | 1986-10-22 | Kanegafuchi Chem Ind Co Ltd | 多極着磁磁石 |
| JPS6377361A (ja) * | 1986-09-19 | 1988-04-07 | Hitachi Ltd | 永久磁石形回転子 |
| JPH01144354A (ja) * | 1988-03-24 | 1989-06-06 | Hitachi Metals Ltd | ステッピングモーター用ロータ |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53143008U (ru) * | 1977-04-18 | 1978-11-11 |
-
1981
- 1981-06-03 JP JP56084431A patent/JPS57199205A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57199205A (en) | 1982-12-07 |
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