发明名称 |
B-column for motor vehicle |
摘要 |
A B-column comprises a component of a car body for a motor vehicle. The B-column constitutes a longitudinal steel profile. The invention provides that the longitudinal profile has a first longitudinal portion comprised of a martensitic material structure and a strength of more than 1400 N/mm2 and has a second longitudinal portion of higher ductility with a predominantly ferritic-perlitic material structure and a strength of below 850 N/mm2. The lower longitudinal portion is wider then the upper longitudinal portion and has an elongation at rupture which is below 25%.
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申请公布号 |
US2002104591(A1) |
申请公布日期 |
2002.08.08 |
申请号 |
US20010933143 |
申请日期 |
2001.08.20 |
申请人 |
GEHRINGHOFF LUDGER;KNAUP HANS-JURGEN |
发明人 |
GEHRINGHOFF LUDGER;KNAUP HANS-JURGEN |
分类号 |
B62D25/04;(IPC1-7):C22C38/00 |
主分类号 |
B62D25/04 |
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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