专利内容由知识产权出版社提供
专利名称：Method for producing corrosion and wear
resistant protective coatings on magnesiumand magnesium alloys
发明人：SCHMELING, EDITH LUISE,ROSCHENBLECK,
BENNO, PROF.DR.-ING.,WEIDEMANN,MICHAEL HANS
申请号：EP104236.8申请日：190310公开号：EP0333048A1公开日：190920
摘要：To produce corrosion- and wear-resistant protective coatings on magnesium ormagnesium alloys by anodic oxidation, use is made of a low-alkali aqueous electrolyticbath which contains… a) borate or sulphate anions, and… b) phosphate and fluoride orchloride ions… and which is adjusted to a pH of 5 to 11, preferably 8 to 9. The applieddirect current is interrupted for a short time or partially reversed in order to permit theformation of magnesium phosphate and magnesium fluoride or chloride and, possibly,magnesium aluminate. This produces coatings without or with only very slight inherentcoloration which can readily be coloured and which yield a good adhesive base forlacquer coatings or post-treatments.
申请人：ELECTRO CHEMICAL ENGINEERING GMBH
地址：Poststrasse 9 Zug CH
国籍：CH
代理机构：Eggert, Hans-Gunther, Dr.
更多信息请下载全文后查看
