Aluminum alloy wheel electroplating process originated in America. Because of the perfect combination of the light aluminum alloy and the decorative chromium, the luxury cars present gorgeous and unique assisting with the aluminum alloy wheels. However, the plating on casting aluminum is different from that on steel base. Each process and technical parameter need to be studied and tested seriously, starting from pre-treatment and pre-plating to the real copper plating, nickel plating or chromium plating.
The Process Flow of Aluminum Pieces Electroless Nickel Plating:
The process flow
The product application
1. Wax Remover
HN-DCR Versatile Wax Cleaner
2. Oil Remover
HN-E50 Electrolytic Cleaner for Zn/Al Parts
3. Cleansing
HN-330 Aluminum-wheel Cleaner
4. Zinc Deposit (1)
HN-3000 Aluminum Alloy Zinc Agent
5. Dezincification
1:1 Nitric Acid
6. Zinc Deposit （2）
7. Pre-electroplating (Cu, Ni)
8. Acid Copper
HN-Exultra Bright Acid Copper Plating Process
9. Semi-bright Nickel
HM-M102 Semi-bright Nickel Plating Process
10. High-sulfur Nickel
HN-60 High-sulfur Nickel Plating Process
11. Full-bright Nickel
HN-TP Full-bright Nickel Plating Process
12. Sealing Nickel Plating
HN-S88 Sealing Nickel Plating Process
13. Decorative Chromium
HN-82 Decorative Chromium Plating Process