Zinc and aluminum die casting silver layer to stripping?

     A safe electrochemical stripping methods are: sodium chloride 20 ~ 50g / L, pure water l000mL / L, at room temperature, Investment casting  stripping, stripping parts as the anode (cathode stainless steel plate), the anode current density of 2A / dm2.

     Another has the effect of stripping precious metal recovery method: silver cyanide 65g / L, potassium cyanide, 68g / L, at 20 ~ 30 íŠ, and be back piece as the anode current density of 0.3 ~ 0.5A / dm2, Lost wax casting the net back up. This retreat can be used as silver plating solution recovery of additional liquid.