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公开(公告)号:US3700485A
公开(公告)日:1972-10-24
申请号:US3700485D
申请日:1970-04-10
发明人: RUBIN ROBERT G
CPC分类号: C23C14/025 , C23C14/021 , C23C14/541 , Y10S428/938 , Y10T428/12757 , Y10T428/12792
摘要: ADHERENT VACUUM VAPOR DEPOSITED ZINC COATINGS ARE PROVIDED FERROUS SUBSTRATES BY INITIALLY VACUUM VAPOR COATING THE SUBSTRATES WITH A FIRST METAL COMPRISING EITHER ALUMINUM OR MAGNESIUM AND THEREAFTER VACUUM VAPOR COATING THE SUBSTRATES WITH ZINC. THE TEMPERATURE OF A SUBSTRATE DURING THE COATING PROCEDURE AND THE ELAPSED TIME BETWEEN APPLICATION OF THE SUCCESSIVE COATINGS ARE CONTROLLED WITHIN CRITICAL LIMITS.