发明名称 |
CHROME-PLATED PART AND MANUFACTURING METHOD OF THE SAME |
摘要 |
An nickel plating layer (5a) intended for corrosion current distribution is formed over a body (2), and a 0.05 to 2.5 micrometers thick surface chrome plating layer (6) made of trivalent chromium is formed on the surface thereof using basic chromium sulfate as a source of metal. Further on the same, a not less than 7 nm thick chromium compound film (7) is formed by cathode acidic electrolytic chromatin. The corrosion distribution nickel plating layer (5a) has a function of forming a microporous structure, a microcrack structure, or the both of the same in the surface chrome plating layer (6). |
申请公布号 |
EP2201161(B8) |
申请公布日期 |
2015.03.11 |
申请号 |
EP20080828191 |
申请日期 |
2008.08.27 |
申请人 |
NISSAN MOTOR CO., LTD.;ATOTECH DEUTSCHLAND GMBH |
发明人 |
SUGAWARA, SOICHIRO;KOYASU, HIROAKI;SAKAI, HIROSHI;KEERS, GRANT;GEISSLER, JEANS-ERIC |
分类号 |
C25D5/34;C25D3/06;C25D3/10;C25D5/12;C25D5/48;C25D9/08 |
主分类号 |
C25D5/34 |
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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