发明授权
- 专利标题： Method for producing killed steels for continuous casting
- 专利标题（中）： 生产连续铸造的顽固钢的方法
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申请号： US818348申请日： 1977-07-22
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公开(公告)号： US4152140A公开(公告)日： 1979-05-01
- 发明人: Sankichi Hori , Yasunori Owada , Akihiko Kusano
- 申请人： Sankichi Hori , Yasunori Owada , Akihiko Kusano
- 申请人地址： JPX Tokyo
- 专利权人： Nippon Steel Corporation
- 当前专利权人： Nippon Steel Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX51-89856 19760728; JPX52-22366 19770302; JPX52-22367 19770302; JPX52-22368 19770302; JPX52-25008 19770302
- 主分类号： C21C7/06
- IPC分类号： C21C7/06 ; C21C7/10
摘要：
A method for producing a killed molten steel for continuous casting, which comprises;A step of preparing a molten steel with a blow-off carbon content not less than 0.05% in a converter,A step of pouring the molten steel to a ladle, andA step of degassing the molten steel in vacuum degassing vessel under a vacuum within a range of from 10 to 300 mmHg, with addition of at least one element selected from the group consisting of Al, Si and Mn, while stepwisely adjusting the vacuum in correspondence to the degree of decarburization of the molten steel.
公开/授权文献
- US5791979A Grinding vacuum shroud 公开/授权日：1998-08-11