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707(2x) Nickel-free Black Tin Alloy Plating Chemical additivesTechnology
707 nickel-free black tin alloy technology is a new product pioneered by our company,leading environmental trends. It can be widely applied in various components which closely contact with human skin, including buttons, zippers, toys, jewelry, lighting, digital products,etc. To overcome the shortcomings of ordinary nickel-free black nickel electroplating processing, such as high content of cobalt, unsteadiness, leaded and the shortcoming of black ruthenium electroplating processing whose acidity and cost is high. Firstly, cobalt content in this bath is about 0.8g/L, only one-tenth of ordinary nickel-free black nickel electroplating processing. Secondly its component is simple and operation needs no special experience. It let you get rid of the previously view of nickel-free black nickel electroplating processing.
The plating chemicals Process features:
1Cobalt content is low(less than 1g/l),the coating is without magnetic, lead-free, non-radioactive and it meets the latest European standards.
2Keep work even at a concentration of 12 Be°,do not affect the blackness.
3Low viscosity and cobalt content,less waters consumption and cost is decreased dramatically.
4Bath is stable and in strong alkaline, pH (10-12) changed little, metal ions of tin and cobalt will not be decomposition and precipitation.
5Compare to ordinary nickel-free black nickel electroplating processing, it has high current efficiency and completes plating quickly, for example, barrel plating usually just needs 5-6minutes(17Be°).
6Pure black coating, without blue color.
7Daily consumption is controllable and available, all additives and main salt are in the certain range so that it is convenient for computer automation control.
Make up method:
Heat 707 nickel-free black tin alloy make-up agent to above 30°C , it can be used after testing the pH-value.
707(2x) Nickel free Black Tin Alloy Plating Chemicals