发明名称 |
Method of treating a permanent magnet alloy |
摘要 |
The reversible temperature coefficient of magnetization of a permanent magnet alloy is lowered by (a) heating the alloy at about 1200 degrees C. for 2 hours, (b) quenching the alloy in ice water, (c) heating the alloy at about 850 degrees C. for 2 hours, (d) lowering the temperature to about 700 degrees C. and heating for one hour, (e) lowering the temperature to about 600 degrees C. and heating for one hour, (f) lowering the temperature to about 500 degrees C. and heating for one hour, (g) lowering the temperature to about 400 degrees C. and heating for four hours, and (h) lowering the temperature to about 280 degrees C. and heating for 12 hours. The method is particularly effective in lowering the reversible temperature coefficient of magnetization of the permanent magnet alloy Sm2Cu1.6Zr0.16Fe3.3Co12.
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申请公布号 |
US4213802(A) |
申请公布日期 |
1980.07.22 |
申请号 |
US19790033940 |
申请日期 |
1979.04.27 |
申请人 |
U S OF AMERICA ARMY SECRETARY |
发明人 |
BERGNER, ROBERT L;LEUPOLD, HERBERT A;ROTHWARF, FREDERICK;TAUBER, ARTHUR |
分类号 |
H01F1/055;(IPC1-7):H01F1/02 |
主分类号 |
H01F1/055 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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