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    • 29. 发明申请
    • ELECTROLYTIC CODEPOSITION OF ZINC AND GRAPHITE AND RESULTING PRODUCT
    • ZINC和石墨和结果产品的电解代谢
    • WO1984002149A1
    • 1984-06-07
    • PCT/US1982001689
    • 1982-12-01
    • FORD MOTOR COMPANYFORD-WERKE AKTIENGESELLSCHAFTFORD FRANCE S.A.FORD MOTOR COMPANY LIMITEDDONAKOWSKI, William, A.MORGAN, John, R.
    • FORD MOTOR COMPANYFORD-WERKE AKTIENGESELLSCHAFTFORD FRANCE S.A.FORD MOTOR COMPANY LIMITED
    • C25D05/48
    • C23C22/24C25D5/48C25D15/02
    • A high lubricity codeposit of zinc and graphite, and an improved method for depositing the codeposit. The coating is characterized by a coefficient of friction equal to or less than .130, and a high resistance to corrosion evidenced by no red rust in a salt spray environment for 72 hours and no destruction due to corrosion in an industrial environment, containing sulphur dioxide, for four months. When the codeposit additionally has a chromate outer coating, the system has a coefficient of friction equal to or less than .112 and has no red rust in a salt spray environment for at least 120 hours. The codeposit is applied by immersing a cleansed metallic substrate in an acidic zinc plating electrolyte containing at least 40 g/l zinc ions and 30-110 g/l insoluble bulk graphite, with a pH of 5-5.7. The cell of which the electrolyte is a part is energized to plate out a codeposit; the graphite is continuously agitated while in solution, the agitation being periodically interrupted to allow the graphite to settle and saturate the zinc interface as it is plating out.
    • 锌和石墨的高润滑性共沉积,以及用于沉积共沉积物的改进方法。 该涂层的特征在于等于或小于0.130的摩擦系数,以及在盐雾环境中72小时内没有红锈证明的高耐腐蚀性,并且在包含二氧化硫的工业环境中没有腐蚀破坏 ,四个月。 当共沉积物另外具有铬酸盐外涂层时,该系统的摩擦系数等于或小于0.112,并且在盐雾环境中没有红锈至少120小时。 通过将清洁的金属基材浸渍在含有至少40g / l锌离子和30-110g / l不溶大块状石墨的酸性镀锌电解液中,pH为5-5.7,来施加共沉积。 电解质部分的电池被通电以平整共沉积物; 石墨在溶液中持续搅拌,搅拌周期性地中断,以使石墨在电镀时使锌界面沉淀并饱和。