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公开(公告)号：US20200255915A1
公开(公告)日：2020-08-13
申请号：US16642433
申请日：2018-08-28
发明人： Fuliang LIAN , Gaofei LIANG , Hongxing CHEN , Shunli ZHAO , Bijun BAN , Xiujun LI , Gang XU
IPC分类号： C21D8/02 , C21D6/00 , C21D1/26 , C22C38/32 , C22C38/28 , C22C38/26 , C22C38/22 , C22C38/20 , C22C38/06 , C22C38/04 , C22C38/00
摘要： Disclosed are a high-strength multiphase steel tinned raw plate and a manufacturing method therefor, wherein the mass percentages of the components of the multiphase steel tinned raw plate are: 0.081%-0.14% of C, 0.2%-0.8% of Mn, 0.01%-0.09% of Al, 0.01%-0.03% of P, 0.002%-0.015% of N, also containing one or more than one of 0.001%-0.005% of B, 0.005%-0.05% of Cr, 0.001%-0.1% of Ti, 0.001%-0.2% of Nb, 0.005%-0.03% of Cu, 0.001%-0.008% of Mo, and the balance of Fe and other inevitable impurities; and satisfy: 0.21%
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2.发明申请公开(公告)号：US20200318224A1
公开(公告)日：2020-10-08
申请号：US16303779
申请日：2017-05-26
发明人： Fuliang LIAN , Bijun BAN , Gaofei LIANG
IPC分类号： C22C38/28 , C22C38/20 , C22C38/22 , C22C38/26 , C22C38/04 , C22C38/06 , C22C38/00 , C21D9/46 , C21D8/02
摘要： A high-strength high-elongation tinned primary plate and a double cold reduction method therefor. The tinned primary plate comprises the following components by weight from 0.065 to 0.12% of carbon, from 0.2 to 0.8% of manganese, from 0.003 to 0.015% of nitrogen, the remainder being iron and the inevitable trace impurities. The tinned primary plate is necessarily subjected to double cold reduction at a reduction of 5˜13% and a rolling tension of 50˜100 MPa. The tinned primary plate has a yield strength of Rp0.2≥520 MPa, and percentage elongations in rolling direction RD, 45° direction and perpendicular direction TD, which are all greater than or equal to 10% after bake-hardening.
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