A kind of process method of cyanide-free silver plating
A technology of cyanide-free silver plating and process method, which is applied in the field of electrochemical silver plating process, can solve the problems of cumbersome silver plating process, high cost, and numerous procedures, and achieve the effects of reducing production cost, improving efficiency, and high circulation volume
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Embodiment 1
[0060] Select the appropriate size of copper particles.
[0061] First of all, it is necessary to remove the oil, sweat and dust on the surface of the copper particles, and the copper particles can be wiped with paper towels or non-woven fabrics.
[0062] The copper pellets are then rinsed under running water.
[0063] Then put the copper particles into the silver-plating tank and drive the plated parts through the filter of the silver-plating tank to carry out uniform rolling cycle, so that the copper particles are uniformly electroplated in the cyanide-free solution. Wherein, include silver nitrate, conductive salt, complexing agent, potassium carbonate, potassium hydroxide and gloss agent in the described cyanide-free solution, described silver nitrate, described conductive salt, described complexing agent, described potassium carbonate, The contents of the potassium hydroxide and the gloss agent are respectively 20g / L, 120g / L, 120g / L, 25g / L, 80g / L and 15mL / L. The cyanide...
Embodiment 2
[0066] Select the appropriate size of copper particles.
[0067] First of all, it is necessary to remove the oil, sweat and dust on the surface of the copper particles, and the copper particles can be wiped with paper towels or non-woven fabrics.
[0068] The copper pellets are then rinsed under running water.
[0069] Then put the copper particles into the silver-plating tank and drive the plated parts through the filter of the silver-plating tank to carry out uniform rolling cycle, so that the copper particles are uniformly electroplated in the cyanide-free solution. Wherein, include silver nitrate, conductive salt, complexing agent, potassium carbonate, potassium hydroxide and gloss agent in the described cyanide-free solution, described silver nitrate, described conductive salt, described complexing agent, described potassium carbonate, The contents of the potassium hydroxide and the gloss agent are respectively 30g / L, 130g / L, 130g / L, 30g / L, 90g / L and 20mL / L. The cyanide...
Embodiment 3
[0072] Select the appropriate size of copper particles.
[0073] First of all, it is necessary to remove the oil, sweat and dust on the surface of the copper particles, and the copper particles can be wiped with paper towels or non-woven fabrics.
[0074] The copper pellets are then rinsed under running water.
[0075] Then put the copper particles into the silver-plating tank and drive the plated parts through the filter of the silver-plating tank to carry out uniform rolling cycle, so that the copper particles are uniformly electroplated in the cyanide-free solution. Wherein, include silver nitrate, conductive salt, complexing agent, potassium carbonate, potassium hydroxide and gloss agent in the described cyanide-free solution, described silver nitrate, described conductive salt, described complexing agent, described potassium carbonate, The contents of the potassium hydroxide and the gloss agent are respectively 40g / L, 140g / L, 140g / L, 35g / L, 100g / L and 25mL / L. The cyanid...
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