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发明公开
CN106245074A 一种防变色电镀银的电镀液及其电镀工艺 无效 - 驳回

一种防变色电镀银的电镀液及其电镀工艺
摘要：
本发明公开了一种防变色电镀银的电镀液及其电镀工艺。本发明的电镀工艺包括如下步骤：1)工件镀前处理；2)温自来水冲洗；3)冷自来水冲洗；4)第一次蒸馏水洗；5)电镀液镀银；6)第二次蒸馏水洗；7)浸入浸渍液；8)第三次蒸馏水洗；9)冷风吹干。本发明的电镀工艺可以防止银在铜、镍等金属上被置换出，还可以防止镀银层在含有硫及硫化物的潮湿空气中以及紫外光照射条件下易变色、发黄的现象。
摘要（英）：

The invention discloses an electroplating solution and process for anti-discoloration electroplated silver. The electroplating process comprises the following steps of (1) workpiece treatment before electroplating, (2) warm tap water flushing, (3) cold tap water flushing, (4) primary distilling washing, (5) silver electroplating through the electroplating solution; (6) secondary distilling washing, (7) impregnating solution impregnating, (8) distilling washing for the third time, and (9) cold air drying. According to the electroplating process for the anti-discoloration electroplated silver, the silver can be prevented from being replaced on copper, nickel and other metal, and the phenomenon that a silver electroplating layer is prone to being discolored and yellowed in humid air containing sulfur and sulfide and under the condition of ultraviolet irradiation can further be prevented.

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