发明授权
US07690417B2 Thin cast strip with controlled manganese and low oxygen levels and method for making same
有权
具有控制锰和低氧水平的薄铸带和制造相同的方法
- 专利标题: Thin cast strip with controlled manganese and low oxygen levels and method for making same
- 专利标题(中): 具有控制锰和低氧水平的薄铸带和制造相同的方法
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申请号: US11469686申请日: 2006-09-01
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公开(公告)号: US07690417B2公开(公告)日: 2010-04-06
- 发明人: Rama Ballav Mahapatra , David J. Sosinsky
- 申请人: Rama Ballav Mahapatra , David J. Sosinsky
- 申请人地址: US NC Charlotte
- 专利权人: Nucor Corporation
- 当前专利权人: Nucor Corporation
- 当前专利权人地址: US NC Charlotte
- 代理机构: Hahn, Loeser & Parks, LLP
- 代理商 Arland T. Stein
- 主分类号: B22D11/06
- IPC分类号: B22D11/06
摘要:
A method for making a thin cast strip with reduced meniscus marks includes assembling a pair of casting rolls laterally positioned to form a nip therebetween, preparing molten steel having a carbon content in the range of 0.01 to 0.3% by weight, a manganese content between 0.1 and 0.8% by weight, a silicon content between 0.05 and 0.5% by weight, a calcium content between 0.0008 and 0.004% by weight, an aluminum content between 2 and 500 ppm by weight, having a free oxygen content below about 50 ppm at 1600° C., forming a casting pool of the molten steel supported on casting surfaces of the casting rolls above the nip, and counter-rotating the casting rolls cause thin strip to be casted downwardly from the nip.
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