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Zinc barrel plating on 20 steel ring and coating performance
Author(s): 
Pages: 14-16
Year: Issue:  3
Journal: Electroplating & Finishing

Keyword:  钢套环滚镀锌性能三价铬钝化;
Abstract: 开发了一种20钢套环的滚镀锌工艺.镀液组成和工艺条件为:氯化锌65~70 g/L,氯化钾210~220 g/L,硼酸30~40g/L,BH-51柔软剂20~40 mL/L,BH-51光亮剂1~3 mL/L,温度30~40℃,pH 4.8~5.6,电流密度3.0~5.0 A/din2,装载量30~40kg,滚筒转速7~8r/min,时间25~35 min.本工艺的电镀时间短,所得镀锌层的厚度、外观、结合力、硬度及耐蚀性等均符合相应的国标要求.
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