Chemical nickel-phosphate plating solution
A technology for electroless nickel-phosphorus plating and plating solution, applied in the field of electroless plating, can solve problems such as increasing the cost of sewage treatment, and achieve the effects of increasing the plating speed and corrosion resistance.
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Embodiment 1
[0022] The preparation of electroless nickel-phosphorus alloy plating solution: according to the ratio of nickel sulfate 27g / L, sodium hypophosphite 27.9g / L, lactic acid 14.5g / L, sodium acetate 15g / L, inorganic additive (ferrous sulfate) 40mg / L Prepare electroless nickel-phosphorus alloy plating solution, use 1mol / LH 2 SO 4 Adjust the pH to 4.4.
[0023] Electroless nickel-phosphorus plating: put a 1.5×2cm iron substrate in the above-mentioned electroless nickel-phosphorus alloy plating solution with a constant temperature in a water bath after alkali washing, water washing, and hydrochloric acid activation. The temperature is 90°C. Dry, get electroless nickel-phosphorus alloy.
[0024] Use an electronic balance to weigh the mass before and after plating, and calculate the plating speed of electroless nickel plating.
[0025] The calculation results show that the plating rate of the electroless nickel-phosphorus alloy plating is 18.29 μm / h.
[0026] The plating speed of th...
Embodiment 2
[0028] Preparation of electroless nickel plating solution: according to the ratio of nickel sulfate 27g / L, sodium hypophosphite 27.9g / L, lactic acid 14.5g / L, sodium acetate 15g / L, inorganic additive (ferrous sulfate) 60mg / L Phosphorus plating solution for nickel plating, use 1mol / L H 2 SO 4 Adjust the pH to 4.4.
[0029] The plating process of electroless nickel-phosphorus alloy plating is the same as that in Example 1.
[0030] Use an electronic balance to weigh the mass before and after plating, and calculate the plating speed of electroless nickel-phosphorus alloy plating.
[0031] The calculation results show that the plating speed of electroless nickel-phosphorus plating is 18.88μm / h, which is 10.41% higher than that of the basic electroless nickel plating solution formula.
Embodiment 3
[0033] Preparation of electroless nickel plating solution: according to the ratio of nickel sulfate 27g / L, sodium hypophosphite 27.9g / L, lactic acid 14.5g / L, sodium acetate 15g / L, inorganic additive (cobalt sulfate) 60mg / L to prepare chemical plating Nickel phosphorus plating solution, with 1mol / L H 2 SO 4 Adjust the pH to 4.4.
[0034] The plating process of electroless nickel-phosphorus alloy plating is the same as that in Example 1.
[0035] Use an electronic balance to weigh the mass before and after plating, and calculate the plating speed of electroless nickel-phosphorus alloy plating.
[0036] The calculation results show that the plating speed of electroless nickel-phosphorus plating is 18.11 μm / h, which is 5.90% higher than that of the basic electroless nickel plating solution.
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