Common Problems of Electroless Nickel Plating Bath Replenishment

Today, I will interpret the common problems of electroless nickel plating solution supplementation for you. If you want to know friends, please read the article below.

1. First take 100 mL of deionized water, then add 10 mL of plating solution, add 10 mL of ammonia water, 0.02 g of purpuric ammonia indicator, and finally use 0.1 mol of EDTA solution to titrate to purple as the terminal.

2. The amount of nickel sulfate added to the electroless nickel plating solution (g)=(27—2.7 times the EDTA titration number) and then multiplied by the cylinder opening volume L, the equal value is the value of nickel sulfate to be added (in grams) .

3. The value of adding sodium acetate is obtained by multiplying the obtained nickel sulfate by 0.74, which is the value of adding sodium acetate. Multiplying nickel by 0.37 is the supplementary value of the additive. (The sum of brightener A and complexing agent B, take half of each). (unit mL) Lactic acid is the supplementary value of nickel sulfate multiplied by 0.185 (unit mL).