| 摘要 |
Aluminum containing 1-8% alloyed zinc is free from grease and organic contaminants, e.g. by the use of alkaline and etching cleaners; cathodically cleaned employing sulfuric acid, to free it of any oxide film, and then subjected to cathodic deposition of cyanide and borate salts. A bronze coating (58-88% tin) is then electrodeposited on to the aluminum up to one hour after. A final, lustrous decorative coating e.g. of chromium or nickel, may then be electrodeposited thereon. |
