Electroless plating is a special field in electronics plating and also called auto-catalytic plating, which is a chemical deposit process without additional power supplement. The basal parts can be plated provided that they are dipped into the flowing plating bath. Therefore，the electroless plating process is a plating process with excellent dispersive ability and very even plating layer. With the above advantages, the electroless plating process, especially the electroless nickel plating, is widely adopted in electronics plating. Mid-phosphorus and high-phosphorus electroless nickel plating processes are mainly used in the nickel plating layer on magnetic disc.
Electroless Nickel Plating Process Flow of Aluminum Parts and Magnesium Alloy Parts:
Process Flow
Product Application
1. Wax Removal
HN-DCR Wax Filth Remover
2. Hot Dip Degreasing
HN-526 Degreasing Powder for Aluminum Alloy
3. Light Etching
HN-220 Light Etching Agent for Aluminum-wheel
4. Cleansing
HN-230 Aluminum-wheel Cleaner
5. Zinc Deposit(1)
HN-200 Aluminum Non-cyanide Zincate Agent
6. Removing Zinc
7. Zinc Deposit(2)
8. Pre-nickel Plating
NICHEM-1000 Alkaline Electroless Nickel Plating Process
9. Electroless Nickel Plating
HN-MP Environmental-friendly Mid-phosphorus Electroless Nickel Plating Process
HN-HP Electrolss Nickel Plating Process
HN-GP Environmental-friendly High Phosphorus Electroless Nickel Plating Process
HN-HS Environmental-friendly Bright Electrolss Nickel Plating Process
Electroless Nickel Plating Process Flow of Steel Parts:
1. Removing Wax by Supersonic
2. Degreasing by Hot Dip
HN-132 Electroless Cleaner
3. Acid Etching
4. Electrolytic Cleaner
HN-E10 Electrolytic Cleaner
5. Activation
6. Electroless Nickel Plating