Preparation method of chemical nickel-plating solution
A technology of electroless nickel plating and preparation method, which is applied in the direction of liquid chemical plating, metal material coating process, coating, etc., and can solve the problem of nickel plating solution scrapping, solution stability is not high, and electroless nickel plating scrap solution treatment process is complicated and other problems, to achieve the effect of fine electroless nickel plating and good bonding force
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[0020] Example 1
[0021] A preparation method of electroless nickel plating solution, the process conditions are as follows:
[0022] (1) Inject 1 / 3 volume of pure water into the nominal roughening tank, add sulfuric acid according to the process requirements of 1ml / L concentration, and then add acetic acid according to the process requirements of 1ml / L concentration, adjust the pH to 1.5, and finally use The pure water fills the roughening tank with the volume required for the process, and then the temperature of the solution in the tank is heated to 40°C and sealed for later use.
[0023] (2) Inject 1 / 3 volume of purified water into the nominal sensitization tank, add stannous chloride according to the process requirement of 5g / L concentration, then add hydrochloric acid according to the process requirement of concentration 1ml / L, and finally use purified water Fill the roughening tank with the volume required for the process, and then heat the temperature of the solution in the...
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[0027] Example 2
[0028] A preparation method of electroless nickel plating solution, the process conditions are as follows:
[0029] (1) Inject 1 / 3 volume of pure water into the nominal roughening tank, add sulfuric acid according to the process requirements of 3ml / L concentration, and add acetic acid according to the process requirements of 3ml / L concentration, adjust the pH to 2.0, and finally use The pure water fills the roughening tank with the volume required for the process, and then the temperature of the solution in the tank is heated to 45°C and sealed for later use.
[0030] (2) Inject 1 / 3 volume of purified water into the nominal sensitization tank, add stannous chloride according to the process requirement of 8g / L concentration, then add hydrochloric acid according to the process requirement of concentration 2ml / L, and finally use purified water Fill the roughening tank with the volume required by the process, and then heat the temperature of the solution in the tank ...
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[0033] Example 3
[0034] A preparation method of electroless nickel plating solution, the process conditions are as follows:
[0035] (1) Inject 1 / 3 volume of purified water into the nominal roughening tank, add sulfuric acid according to the process requirements of 5ml / L concentration, and add acetic acid according to the process requirements of 5ml / L concentration, adjust the pH to 2.5, and finally use The pure water fills the roughing tank with the volume required by the process, and then the temperature of the solution in the tank is heated to 55°C and sealed for use.
[0036] (2) Inject 1 / 3 volume of pure water into the nominal sensitization tank, add stannous chloride according to the process requirement of 10g / L concentration, then add hydrochloric acid according to the process requirement of concentration 3ml / L, and finally use purified water Fill the roughening tank with the volume required for the process, and then heat the temperature of the solution in the tank to 55°...
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