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    • 4. 发明授权
    • Electropolishing aluminum and aluminum alloys
    • 电抛光铝和铝合金
    • US3970529A
    • 1976-07-20
    • US573186
    • 1975-04-30
    • Sylvia Martin
    • Sylvia Martin
    • C25F3/20C25F3/00
    • C25F3/20
    • A process and bath for electropolishing and brightening aluminum and aluminum alloys. The bath preferably contains from about 30 percent to about 95 percent phosphoric acid and from about five percent to about 70 percent of a poly (alkylene ether). A minor amount, generally from about 0.05 to about two percent, of a wetting agent may be added to the bath if desired. The bath forms a protective foamy film over the part being electroplated, thereby protecting the part against chemical attack by the bath. Further, the polyether additives are chemically and thermally stable in the electrolyte under normal bath operating conditions. The bath may be operated at low voltages ranging from about 15 to 100 volts.
    • 用于电解抛光和增亮铝和铝合金的工艺和浴。 该浴优选含有约30%至约95%的磷酸和约5%至约70%的聚(亚烷基醚)。 如果需要,可以将较少的量(通常为约0.05%至约2%)的润湿剂加入浴中。 该浴在电镀部分上形成保护性泡沫膜,从而保护该部件免受浴液的化学侵蚀。 此外,聚醚添加剂在正常的浴操作条件下在电解质中是化学和热稳定的。 浴可以在约15至100伏特的低电压下操作。