A kind of silver plating solution pre-dissolving process
A technology of pre-dissolving and silver-plating solution, applied in the direction of electrolysis process, electrolysis components, cells, etc., can solve the problems affecting the uniformity of silver plating, the concentration cannot be improved, and the rise of silver ions, etc., so as to save raw materials for silver plating, Uniform thickness and improved product quality
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[0043] 1. Dissolving (preparing a silver-containing solution with a silver ion concentration of 80g / L)
[0044] Silver cyanide and potassium cyanide are used as raw materials; the volume of the prepared solution is 700L.
[0045] A. Calculate the required dosage of each drug according to the preparation amount and preparation concentration.
[0046] According to the calculation, 70KG of silver cyanide and 35KG of potassium cyanide are needed.
[0047] B. Add about 500L of pure water into the dissolving tank, then add 35KG of potassium cyanide, circulate the liquid medicine and raise the temperature (set the temperature at 60°C). Circulate for two hours until the potassium cyanide is completely dissolved.
[0048] C. Add 70KG silver cyanide to the solution, add pure water to 700L, and circulate the solution for 24 hours until the silver cyanide is completely dissolved.
[0049] D. Laboratory personnel take samples and analyze, and adjust the silver ion concentration to the t...
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