Die casting can be nickel plated. Share with you the process of nickel plating on the surface of die cast aluminum.
Process flow of nickel plating on die casting aluminum surface
1. The surface is polished to remove the surface burr and edge (the shaker is washed with water after 2-3 minutes);
2. Acid pickling activation (the workpiece is soaked in the detergent for 2-3 minutes and then washed with water)
3. The workpiece is immersed in agent a before plating for 10 ~ 15 seconds and washed with water, and then the workpiece is immersed in agent B before plating for 10 ~ 15 seconds and then washed with water
4. Re dip zinc treatment (put the workpiece into pre-treatment agent a for 15 ~ 30 seconds and then wash it with hot water)
5. Nickel plating treatment (according to the proportion of 1:2:7 = A: B: water) is equipped with nickel plating agent, pH value is adjusted to 4.7 ± 0.2 with 10% ammonia water, and then water is added to the specified volume. According to the loading ratio of 0.5 ~ 1.5 DM2 / L, the plating solution is suspended in the plating solution with a loading ratio of 0.5 ~ 1.5 DM2 / L. the temperature is controlled at 90 ℃± 3 ℃, and the plating bath is evenly distributed. The required time depends on the coating thickness, generally 50 ~ 60 minutes of plating thickness About 20um); 6. Passivation of nickel layer (soak the workpiece in passivator for about 3 minutes and then dry or air dry).
Our company's aluminum die-casting can also be nickel-plated, which can meet customers' customized electroplating needs.