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Home > Industry news > 铝合金压铸件电镀六大工艺介绍(2)

铝合金压铸件电镀六大工艺介绍(2)

Release Date:2023-10-10 Content Comes From:http://jlwjdd.com/en/

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钣金冲压件电镀首先是温度,宜控制在25℃左右,过低应适当延长除垢时间,过高则应缩短时间,夏季往往是铝合金起泡的高发期,所以在夏天一定要有冷冻降温设备。


  其次是浓度,一般分别以50%磷酸、25%硝酸、0-5%氢氟酸和20-25%除垢剂按体积比例混合,严禁不加水。钣金冲压件电镀


  zui后是时间,型材铝除垢时间适当长些,宜控制在2-3分钟,而压铸铝宜控制在0.5-1分钟。钣金冲压件电镀


  对于含镁较高的铝合金在除垢之前必须以下工艺,才能获得结合力良好的镀层。以下浸蚀工艺为:硫酸15%vol,时间2-5分钟,温度80℃。以下除垢工艺为:硝酸50%,温度15-25℃,时间1-2分钟,再沉锌。

钣金冲压件电镀,汽车配件电镀,电镀锌镍合金,苏州电镀,昆山电镀,太仓电镀,上海电镀厂家"

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