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Electroless Nickel Plating on Aluminum Alloy

    虽然有许多关于铝合金直接化学镀镍的报道,但老的浸锌工艺仍有不少采用,下面摘录的是一个普通浸锌化镀工艺:

A.工艺流程:
除油酸洗……→第一次浸锌30~50S→冷水清洗→1:1硝酸退锌→第二次浸锌10~30s→冷水清洗→碱性化学镀镍→酸性化学镀镍→……
B.浸锌配方:
NaOH 50g/L
ZnO 5g/L
三氯化铁 2g/L
酒石酸钾钠 50g/L
硝酸钠 1g/L
室温
C.碱性化学镀镍配方:
硫酸镍 25g/L
次亚磷酸钠 25g/L
焦磷酸钠 50g/L
PH10~11
室温
5分钟


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