发明名称 |
Method of manufacturing a chromed bumper |
摘要 |
The present invention is a method for preparing and chroming a blank of steel. This method reduces time and cost to the assembly process. The method includes the following steps: heating steel slabs to a pre-determined temperature, hot rolling the steel slabs to a pre-determined width/thickness; spraying the steel strips with water to remove scaling; pickling the steel strips in acid to remove scaling; rinsing and drying the strips; cold rolling the strips with an electron beam textured tandem mill into strips having a pre-determined thickness; cold rolling the strips with an electron beam temper mill; and stamping the steel strips into a bumper.
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申请公布号 |
US6881282(B2) |
申请公布日期 |
2005.04.19 |
申请号 |
US20020683914 |
申请日期 |
2002.03.01 |
申请人 |
ISPAT INLAND, INC. |
发明人 |
DUPUIS LAWRENCE;KIEDAISCH KEVIN W.;BALA MARK;URBAN DENNIS |
分类号 |
B21D43/05;C21D8/02;C25D5/10;C25D5/36;(IPC1-7):B21D53/88 |
主分类号 |
B21D43/05 |
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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