发明名称 |
Process for producing alloy steel powder. |
摘要 |
<p>A process for producing alloy steel powder, particularly, low-oxygen, low-carbon alloy steel powder is disclosed. The process comprises: preparing molten steel which contains at least one easily oxidizable element selected from the group consisting of chromium, manganese, vanadium, niobium, boron and silicon; atomizing said molten steel by means of an atomizing agent containing a non-oxidizing medium to provide as-atomized alloy steel powder containing 0.2% by weight or less of oxygen and 0.1% by weight or more of carbon; decarburizing the resulting powder by maintaining it in an atmosphere containing at least H2 and H2O gases under specified conditions; and cooling the thus decarburized alloy steel powder to room temperature in an inert or reducing atmosphere.</p> |
申请公布号 |
EP0108175(A1) |
申请公布日期 |
1984.05.16 |
申请号 |
EP19820305820 |
申请日期 |
1982.11.02 |
申请人 |
SUMITOMO METAL INDUSTRIES, LTD. |
发明人 |
KUBO, TOSHIHIKO;ICHIDATE, MINORU;TAMURA, EIJIRO;KARASUNO, ISAMU;UMINO, MASAHIDE |
分类号 |
B22F1/00;B22F9/08;(IPC1-7):22F9/08;22F1/00 |
主分类号 |
B22F1/00 |
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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