氰化镀锌层表面发雾故障分析及排除

Failure Analysis and Elimination of Fogging on the Surface of Cyanide Zinc Plating

运用鱼骨分析法,从"人、机、料、法、环"5个方面对氰化镀锌层表面发雾故障情况进行分析和排除。造成氰化镀锌层发雾的主要原因是主槽液中的金属杂质离子以及有机杂质偏高。排故人员通过添加过量的除杂剂和颗粒活性炭,辅以过滤处理后,故障得到彻底解决。另外,在槽液健康维护和生产操作方面给予了一些建议,以供参考。

The failure of fogging on the surface of cyanide zinc plating was analyzed and eliminated from five aspects of“human,machine,material,measurement and environment”by the fishbone analytical method.The main reason of causing the fogging was that the metal impurity ions and organic matters in the main plating bath were high.The failure was completely solved by the trouble-shooters through adding an excessive amount of purifier and granular activated carbon,coupled with filtering.In addition,some suggestions on the maintenance of bath solution and production operations were given for reference.