镁合金电镀前处理中用什么代替氢氟酸以及含氟的物质

来源：百度知道 编辑：UC知道 时间：2024/06/21 15:58:31
镁合金电镀前处理中用什么代替氢氟酸以及含氟的物质，也就是说用什么取代氟化镁保护膜，而且不影响后续的浸锌和电镀。

This method produces a protective copper film on magnesium alloy and
improve adhesion between copper film and magnesium alloy substrate without pretreatment in other electrolyte like zincate process. In pyrophosphate based electrolyte
0.4M Na4P2O7 + 0.08M Cu2P2O7 + 0.24M CuSO4 + 0.05M NaF

displacement reaction occurred between copper and magnesium, then copper film formed on magnesium substrate. After copper displacement film formed, electroplating carried out applying DC and pulse
current in the same electrolyte.

为什么要替换掉氢氟酸呢？

用氟化氢铵