发明名称 |
Method of decarburizing refining molten steel containing Cr |
摘要 |
A method of decarburizing refining molten steel containing Cr in such a manner that oxygen gas, inert gas or a mixture of inert gas and oxygen gas is blown to the surface of bath of molten steel containing Cr in a refining chamber and to a position below the surface of the steel bath. Inert gas is blown to the surface of the steel bath, and oxygen gas, the inert gas or a mixture of oxygen gas and inert gas is blown below the surface of the steel bath in a portion of or all of an overall period in which the concentration of C in the molten steel is in a range of 1 wt % and 0.05 wt %. Slag and molten steel are stirred so as to cause Cr2O3 in the slag and C in the molten steel to positively take part in a reaction represented by expression (1) below:Cr2O3+3C->2Cr+3CO(1)
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申请公布号 |
US5743938(A) |
申请公布日期 |
1998.04.28 |
申请号 |
US19960764438 |
申请日期 |
1996.12.12 |
申请人 |
KAWASAKI STEEL CORPORATION |
发明人 |
NISHIKAWA, HIROSHI;WASHIO, MASARU;KIKUCHI, NAOKI |
分类号 |
C21C5/35;C21C7/068;(IPC1-7):C21C5/35 |
主分类号 |
C21C5/35 |
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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