1. Technological process of ABS plastic plating
degreasing → water washing → roughening → water washing → colloidal palladium activation → water washing → gel release → water washing → chemical nickel plating → water washing → nickel electroplating → water washing →copper electroplating→ water washing→ chrome electroplating→ water washing→drying
2. Main process introduction
2.1 Degreasing:remove oil and reducing its surface tension, endowing it with surface hydrophilicity.
2.2 Roughening:improve surface roughness and increase surface area to increase the adhesion between metal coatings and plastics; Make the plastic surface change from hydrophobic to hydrophilic, and all parts are evenly wetted with water to evenly adsorb metal ions.
2.3 Colloidal palladium activation:a layer of easily oxidized material is adsorbed on the surface of the product, so that Redox can occur during the activation treatment, and a precious metal film with catalytic effect can be formed on the surface of the product.
2.4 Gel release:generate a layer of palladium metal film on the surface of the product.
2.5 Chemical nickel plating:plating a layer of nickel on the surface of the workpiece to strengthen the conductive layer.
2.6 Electroplating:plating the required coating on the surface of the product.
3.Solution preparation
Pre-nickel plating solution: Ni(SO3NH2)2 400~600mL/L
NiCl2 5~15g/L
H3BO3 40~60g/L
Nickel plating solution: Ni(SO3NH2)2 400~600mL/L
NiCl2 5~15g/L
H3BO3 40~60g/L
Softening agent 8~12mL/L
Brightening agent 0.2~0.8mL/L
4.Common faults and solutions
| Common faults |
Cause of occurrence |
Solution |
| Pitted spot |
Impurities in electroplating water |
Using deionized water |
| Solid impurities in the electroplating bath |
Strengthen filtering |
| Excessive coarsening |
Adjusting the roughening process |
| Pinhole |
Uneven air stirring in electroplating tank |
Improve air stirring |
| Exposed plastic |
Electroplating tank contaminated with roughening solution |
Prevent coarsening solution from entering the plating bath |
| Insufficient thickness of chemical nickel plating |
Adjust the nickel plating solution within the process range |
| Yellowing |
Chromium layer too thin |
Increase chromium plating current |
| Scorch |
Excessive current in the local part of the product |
Reduce current |
| Rust |
Poor conductivity of hanging tools |
Make a new hanging tool |
| Strong corrosive media present in the environment |
improve environment |
| Bubbling |
Poor material performance |
Select electroplating grade ABS |
| Excessive or poor roughening |
Reduce or increase the coarsening level appropriately |
5.Packaging & Shipping
We can pack it by pallet, or according to the customers' specific requirements.
Port: Shanghai/Ningbo
6. Our Services
In order to guarantee the customers are able fully to operate the machine, if the customer need, we can help customer training, includes:
(1) Correct operating mode
(2) Correct maintenance way
(3) Correct technological process control
(4) Remove simple problem
All the electroplating machine of our company have already been widely used in electroplating area.
Any doubt please contact us.
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Custom ABS Plastic Electroplating Machine PLC Control 220V / 50HZ Images
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