发明名称 |
Surface treatment chemicals and bath for aluminum or its alloy and surface treatment method |
摘要 |
A surface treatment chemicals for aluminum or its alloy consisting essentially of 10-1000 parts by weight of niobium ion and/or tantalum ion, and 1-50 parts by weight of effective fluorine ion, and optionally 10-500 parts by weight of zirconium ion and/or titanium ion and 10-500 parts by weight of phosphate ion. A surface treatment bath is produced by diluting the surface treatment chemicals so as to have a pH of 1.5-4.0. Excellent resistance to blackening by boiling water and adhesion to an overlying polymer coating film can be obtained by a surface treatment using this bath.
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申请公布号 |
US5296052(A) |
申请公布日期 |
1994.03.22 |
申请号 |
US19900561423 |
申请日期 |
1990.08.01 |
申请人 |
NIPPON PAINT CO., LTD. |
发明人 |
IKEDA, SATOSHI;MEGURO, SHIGEYUKI |
分类号 |
C23C22/34;C23C22/36;(IPC1-7):C23C22/34 |
主分类号 |
C23C22/34 |
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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