JPS57106447A - Mold for rare earth magnet - Google Patents
Mold for rare earth magnetInfo
- Publication number
- JPS57106447A JPS57106447A JP55184324A JP18432480A JPS57106447A JP S57106447 A JPS57106447 A JP S57106447A JP 55184324 A JP55184324 A JP 55184324A JP 18432480 A JP18432480 A JP 18432480A JP S57106447 A JPS57106447 A JP S57106447A
- Authority
- JP
- Japan
- Prior art keywords
- fins
- mold
- rare earth
- cooling
- suited
- 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
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Hard Magnetic Materials (AREA)
Abstract
PURPOSE: To increase the ratio of columnar crystal suited for a raw material for high performance magnet by attaching ≥1 pieces of fins to the outside circumference of a mold for rare earth magnets.
CONSTITUTION: It is more effective to part fins 1, 2 for cooling than to adhere these tightly. If the thickness of the fins is small, the subsequent cooling rate is increased without changing a initial cooling rate. Further, the larger the size of the fins, the better. The rate of cooling is higher with the sand blasted surfaces of the fins than with the specular surfaces thereof. Steel and cast iron are suited for the material of the mold. In the case of a round type mold, the provision of the fins in the central part in its height direction gives higher effect.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55184324A JPS57106447A (en) | 1980-12-25 | 1980-12-25 | Mold for rare earth magnet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55184324A JPS57106447A (en) | 1980-12-25 | 1980-12-25 | Mold for rare earth magnet |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57106447A true JPS57106447A (en) | 1982-07-02 |
Family
ID=16151330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55184324A Pending JPS57106447A (en) | 1980-12-25 | 1980-12-25 | Mold for rare earth magnet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57106447A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01272706A (en) * | 1988-04-21 | 1989-10-31 | Ibiden Co Ltd | Carbon mold for hot press |
JPH07171660A (en) * | 1991-08-22 | 1995-07-11 | W C Heraeus Gmbh | Method and casting mold for producing casting consisting of high-temperature crack-sensitive material |
-
1980
- 1980-12-25 JP JP55184324A patent/JPS57106447A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01272706A (en) * | 1988-04-21 | 1989-10-31 | Ibiden Co Ltd | Carbon mold for hot press |
JPH07171660A (en) * | 1991-08-22 | 1995-07-11 | W C Heraeus Gmbh | Method and casting mold for producing casting consisting of high-temperature crack-sensitive material |
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