发明授权
- 专利标题： Weldable black steel sheet
- 专利标题（中）： 可焊黑钢板
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申请号： US499554申请日： 1995-07-10
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公开(公告)号： US5641578A公开(公告)日： 1997-06-24
- 发明人: Naoto Yoshimi , Masaaki Yamashita , Toshiyuki Ookuma , Tatsuya Miyoshi , Toyofumi Watanabe , Tsutomu Watanabe
- 申请人： Naoto Yoshimi , Masaaki Yamashita , Toshiyuki Ookuma , Tatsuya Miyoshi , Toyofumi Watanabe , Tsutomu Watanabe
- 申请人地址： JPX Tokyo
- 专利权人： NKK Corporation
- 当前专利权人： NKK Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX2-126610 19900518; JPX2-211700 19900813; JPX2-211701 19900813; JPX3-080488 19910320
- 主分类号： B05D7/14
- IPC分类号： B05D7/14 ; B05D7/24 ; B32B15/08 ; C09D7/00 ; C09D7/12 ; C09D201/00 ; C23C22/00 ; C23C22/24 ; C23C22/84 ; B32B15/18
摘要：
A black steel sheet having a sufficiently small coating thickness to allow the welding of the steel sheet, and yet exhibiting an excellently black surface. It is a steel sheet having a surface plated with zinc or a zinc alloy, and carrying a chromate film formed on its plated surface, and a black film formed on the chromate film from a composition comprising specific proportions of a thermosetting resin and a black dye, which are both soluble in an organic solvent, and having a sufficiently small thickness. The composition may further contain a solid lubricant, or a granular rust-inhibitive pigment, or both.
公开/授权文献
- US4667149A Precision nondestructive testing of metals 公开/授权日：1987-05-19