开发了Trich-6861氯化物体系三价铬电镀新工艺.通过赫尔槽试验测得不同电流密度下的镀铬速率维持在0.077~0.181 μm/min,且不随电镀时间延长而改变.镀层厚度在0.4 μm以上,表面呈蓝白色,光滑、无裂纹,中性盐雾试验120 h不变色,恒定湿热试验、冷热冲击试验、人造汗液测试和抗化学污染测试均合格.生产实践表明,该工艺镀液性能稳定,操作简单,便于维护,顾客满意度较高.
参考文献
[1] | 郭崇武,赖奂汶.新型硫酸盐三价铬镀铬液和镀层性能的研究[J].电镀与精饰,2012(01):9-12. |
[2] | GYLLENSPETZ J;RENTON S .Trivalent chromium electroplating baths and electroplating therefrom[P].US,3954574,1976-05-04. |
[3] | BARCLAY D J;MORGAN W M .Method and composition for electroplating chromium and its alloys and the method of manufacture of the composition[P].US,4141803,1979-02-27. |
[4] | TOMASZEWSKL T W .Trivalent chromium electrolyte and process employing reducing agents[P].US,4477315,1984-10-16. |
[5] | SEYB E J JR;BROWN L A .Control of anode gas evolution in trivalent chromium plating bath[P].US,4543167,1985-09-24. |
[6] | REYNOLDS B D .Apparatus and process to regenerate a trivalent chromium bath[P].US,5269905,1993-12-14. |
[7] | IBRAHIM S K;WATSON A;GAWNE D T .The role of formic acid and methanol on speciation rate and quality in the electrodeposition of chromium from trivalent electrolytes[J].Transactions of the Institute of Metal Finishing,1997,75(05):181-188. |
[8] | 曾华梁;吴仲达;陈钧武.电镀工艺手册[M].北京:机械工业出版社,1989:821-823. |
[9] | 李国华,赖奂汶,黄清安.三价铬镀液中配体的作用[J].材料保护,2005(12):44-46. |
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