研究了钨表面镀前处理及预镀铬、镍，然后镀金的工艺条件；
The paper studied the pre treatment for electroplating the surface of tungsten and technical conditions for chromate treatment, nickel and gold plating, determined the functions of cladding material.
采用“活化-预镀镍”前处理方法，能有效提高镀层的结合力。
The adhesion can be improved greatly with the activation pretreatment and pre-nickel plating.
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