发明名称 |
Process for refining molten steel containing chromium |
摘要 |
A chromium-containing steel refining process which is employed in a decarburizing refining of chromium-containing steel includes a step of blowing oxygen and inert gas below the upper surface level of molten steel for performing decarburizing reaction there, and a step of blowing oxygen-containing gas above the upper surface level of the molten steel, for the purpose of burning carbon monoxide gas produced from the upper surface of the molten steel, which oxygen-containing gas includes therein oxygen at least 0.2 times as much as the amount of the oxygen blown below the upper surface level of the molten steel.
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申请公布号 |
US4272287(A) |
申请公布日期 |
1981.06.09 |
申请号 |
US19800147558 |
申请日期 |
1980.05.08 |
申请人 |
DAIDO TOKUSHUKO KABUSHIKI KAISHA |
发明人 |
YAJIMA, TADAMASA;KITAGAWA, SHUZO;HATA, HIROMI |
分类号 |
C21C7/00;C21C5/00;C21C5/35;(IPC1-7):C21C7/02 |
主分类号 |
C21C7/00 |
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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