发明名称 |
Metal product having improved luster after painting |
摘要 |
A metal product, such as cold rolled steel sheet, has a surface comprising a plurality of flat, smooth facets which are preferably 50 to 100 mu m across and which make up at least 30% of the area of the surface. The facets may be formed either by pressing a network of valleys in a flat, smooth surface or by flattening the peaks of a rough surface.
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申请公布号 |
US4917962(A) |
申请公布日期 |
1990.04.17 |
申请号 |
US19870077812 |
申请日期 |
1987.07.27 |
申请人 |
CENTRE DE RECHERCHES METALLURGIQUES-CENTRUM VOOR RESEARCH IN DE METALLURGIE |
发明人 |
CRAHAY, JEAN R.;BRAGARD, ADOLPHE A. |
分类号 |
B21B1/22 |
主分类号 |
B21B1/22 |
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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