A kind of gold-palladium alloy electroplating solution and its preparation method and electroplating process
A technology of gold-palladium alloy and electroplating process, which is applied in the field of gold-palladium alloy electroplating solution and its preparation, and electroplating process, which can solve the problems of complex process and control, and reduce the conductivity, solderability and corrosion resistance of the coating
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Embodiment 1
[0106] A kind of preparation method of gold-palladium alloy electroplating solution, the gold concentrated solution that elemental gold content is 750g and the palladium concentrated solution that elemental palladium content is 300g are mixed, then add ethylenediamine 6kg in mixed solution, add sodium acetate conductive salt 2kg, auxiliary agent 0.5kg, then add a small amount of deionized water to make up to 100L, mix evenly, obtain the gold-palladium alloy electroplating solution whose mass ratio of gold concentrated solution and palladium concentrated solution is 2.5:1 in terms of metal element content.
Embodiment 2
[0108] A kind of preparation method of gold-palladium alloy electroplating liquid is that the gold concentrated solution that elemental gold content is 900g and the palladium concentrated solution that elemental palladium content is 400g are mixed, then add triethanolamine 6kg in mixed solution, add ammonium acetate conductive salt 2kg, Auxiliary agent 3kg, then add a small amount of deionized water to make the volume 100L, mix evenly, obtain the gold-palladium alloy electroplating solution whose mass ratio of gold concentrated solution and palladium concentrated solution is 2.25:1 in terms of metal element content.
Embodiment 3
[0110] A kind of preparation method of gold-palladium alloy electroplating liquid, the gold concentrated solution that elemental gold content is 1000g and the palladium concentrated solution that elemental palladium content is 200g are mixed, then add triethanolamine 10kg in mixed solution, add potassium citrate conductive salt 1kg , auxiliary agent 2kg, then add a small amount of deionized water to be fixed to 100L, mix uniformly, obtain the gold-palladium alloy electroplating solution that the ratio of gold concentrated solution and palladium concentrated solution mass is 5: 1 in metal elemental content.
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