发明名称 |
Process for producing sintered ferrous alloys |
摘要 |
A method for producing a sintered ferrous alloy containing at least one alloying element whose standard free energy for oxide formation at 1,000 DEG C. is 11,000 cal/g mol O2 or less is described. The method comprises a sintering procedure comprising steps of elevating the temperature of a green compact comprising said at least one alloying element, sintering it in a sintering furnace and cooling it, wherein the pressure in the sintering furnace is maintained at between about 0.2 and 500 Torr by supplying a reducing gas during at least a part of the sintering procedure under reduced pressure.
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申请公布号 |
US4614638(A) |
申请公布日期 |
1986.09.30 |
申请号 |
US19850805413 |
申请日期 |
1985.12.06 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
KUROISHI, NOBUHITO;OSADA, MITSUO;HARA, AKIO |
分类号 |
B22F3/10;B22F3/24;C22C33/02;(IPC1-7):B22F1/00 |
主分类号 |
B22F3/10 |
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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