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Surface treatment of superplastic zinc alloy

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专利汇可以提供Surface treatment of superplastic zinc alloy专利检索,专利查询,专利分析的服务。并且PURPOSE: To electrolytically treat the surface of a superplastic Zn alloy without dissolving Zn in the alloy in the formation of an electrolytic film on the alloy surface, by using an aqueous soln. contg. oxalic acid and a salt of an org. acid at specified concns. as an electrolytic bath and carrying out AC electrolysis.
CONSTITUTION: In the surface treatment of a superplastic Zn alloy having 1:1W 4:1 ratio of Zn:Al, the alloy surface is cleaned by degreasing with trichlene and subjected to AC electrolytic treatment in an electrolytic bath made of aqueous soln. contg. ≤30wt% oxalic acid and 0.5W5wt% salt of an org. acid such as sodium gluconate, potassium oxalate or sodium tartrate as a Zn dissolution inhibitor. Thus, an electrolytic protective film with superior dyeability can be formed without dissolving Zn contained in the alloy into the electrolytic bath.
COPYRIGHT: (C)1982,JPO&Japio,下面是Surface treatment of superplastic zinc alloy专利的具体信息内容。

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