JPS644403A - Production of magnetic power for resin bonded rare earth-iron permanent alloy - Google Patents
Production of magnetic power for resin bonded rare earth-iron permanent alloyInfo
- Publication number
- JPS644403A JPS644403A JP62157595A JP15759587A JPS644403A JP S644403 A JPS644403 A JP S644403A JP 62157595 A JP62157595 A JP 62157595A JP 15759587 A JP15759587 A JP 15759587A JP S644403 A JPS644403 A JP S644403A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- alloy
- rare earth
- gaseous
- aging treatment
- 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
- 229920005989 resin Polymers 0.000 title abstract 3
- 239000011347 resin Substances 0.000 title abstract 3
- 239000000956 alloy Substances 0.000 title 1
- 229910045601 alloy Inorganic materials 0.000 title 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title 1
- 229910052742 iron Inorganic materials 0.000 title 1
- 239000000843 powder Substances 0.000 abstract 8
- 230000032683 aging Effects 0.000 abstract 4
- 229910000521 B alloy Inorganic materials 0.000 abstract 3
- 229910000640 Fe alloy Inorganic materials 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract 2
- 239000001257 hydrogen Substances 0.000 abstract 2
- 239000006247 magnetic powder Substances 0.000 abstract 2
- 238000000748 compression moulding Methods 0.000 abstract 1
- 229910001004 magnetic alloy Inorganic materials 0.000 abstract 1
- 229910052761 rare earth metal Inorganic materials 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 229920003002 synthetic resin Polymers 0.000 abstract 1
- 239000000057 synthetic resin Substances 0.000 abstract 1
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
- Hard Magnetic Materials (AREA)
Abstract
PURPOSE:To produce magnetic alloy powder having excellent coercive force by executing grinding of a sintered body in gaseous hydrogen at the time of producing magnetic powder for a resin bonded permanent magnet by subjecting rare earth-iron alloy powder to compression molding, sintering, aging treatment, grinding and aging treatment. CONSTITUTION:An R-Fe-B alloy (R is a rare earth element including Y) is melted by an arc in an inert gaseous atmosphere of Ar, etc., and is then cast into an ingot at the time of producing the R-Fe-B alloy powder to be used for producing the permanent magnet by binding the powder of the R-Fe-B alloy with a synthetic resin. After this ingot is ground by a stamp mill, the powder is pulverized by a vibration mill. The fine powder formed in such a manner is compressively molded in a magnetic field and is sintered and oil quenched in a gaseous Ar atmosphere; thereafter, the powder is subjected to the aging treatment for one hour at 600 deg.C in the gaseous Ar and is further subjected to exposing and grinding in a gaseous hydrogen treatment under 1-10kg/cm<2> pressure; the powder is in succession subjected to the aging treatment for 3hr. The magnetic powder for the resin bonded rare earth-iron alloy permanent magnet having extremely large coercive force is obtd.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62157595A JPS644403A (en) | 1987-06-26 | 1987-06-26 | Production of magnetic power for resin bonded rare earth-iron permanent alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62157595A JPS644403A (en) | 1987-06-26 | 1987-06-26 | Production of magnetic power for resin bonded rare earth-iron permanent alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS644403A true JPS644403A (en) | 1989-01-09 |
Family
ID=15653145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62157595A Pending JPS644403A (en) | 1987-06-26 | 1987-06-26 | Production of magnetic power for resin bonded rare earth-iron permanent alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS644403A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03214607A (en) * | 1990-01-19 | 1991-09-19 | Fuji Elelctrochem Co Ltd | Manufacture of bonded magnet |
| JPH03214608A (en) * | 1990-01-19 | 1991-09-19 | Fuji Elelctrochem Co Ltd | Manufacture of bonded magnet |
| JPH03214609A (en) * | 1990-01-19 | 1991-09-19 | Fuji Elelctrochem Co Ltd | Manufacture of bonded magnet |
-
1987
- 1987-06-26 JP JP62157595A patent/JPS644403A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03214607A (en) * | 1990-01-19 | 1991-09-19 | Fuji Elelctrochem Co Ltd | Manufacture of bonded magnet |
| JPH03214608A (en) * | 1990-01-19 | 1991-09-19 | Fuji Elelctrochem Co Ltd | Manufacture of bonded magnet |
| JPH03214609A (en) * | 1990-01-19 | 1991-09-19 | Fuji Elelctrochem Co Ltd | Manufacture of bonded magnet |
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