发明名称 |
Trivalent chromium electroplating baths and method |
摘要 |
An aqueous trivalent chromium plating bath having low temperature stability comprising trivalent chromium ions preferably in a concentration of at least 0.2 M, sulphate ions preferably in a concentration of at least 0.3 M, a weak complexing agent for the chromium ions in a concentration of at least 0.1 M, and fluoride ions in a concentration of at least 0.025 M. The bath preferably also contains chloride ions in a concentration of at least 0.1 M.
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申请公布号 |
US4107004(A) |
申请公布日期 |
1978.08.15 |
申请号 |
US19770853326 |
申请日期 |
1977.11.21 |
申请人 |
INTERNATIONAL LEAD ZINC RESEARCH ORGANIZATION, INC. |
发明人 |
WARD, JOHN JOSEPH BERNARD;BARNES, CLIVE |
分类号 |
C25D3/06;(IPC1-7):C25D3/06 |
主分类号 |
C25D3/06 |
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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