The Surface Finish Of Metal Parts
The advantage of the Surface Finishing of metal parts
1.1 Reflectivity and appearance
1.2 Tarnish resistance
1.3 Ability to bond to rubber (e.g., vulcanizing)
1.4 Hardness
1.5 Enhanced electrical conductivity
1.6 Wear resistance
1.7 Chemical resistance
1.8 Electrical resistance
1.9 Electrical conductivity
Please select the best process according to your requirement of part.
| COST | Surface Finish | Final finish | Industry & Technics | |
|---|---|---|---|---|
| 1 | Cheap | No cosmetic requirements. Surface imperfections (cold shut, rubs, surface porosity, lubricant build-up, etc.) are acceptable | Used as-cast or with protective coatings: Anodize (non-decorative) Chromate (yellow, clear) | Internal parts, (aluminium die casting, extrusion) |
| 2 | Medium | Imperfect Surface (cold shut, rubs, surface porosity, etc.), that can be removed by spot polishing or can be covered by heavy powder coating paint, are acceptable. | Power coating, Painting, Sand blast, Silk Screen Printing, Vibratory Finishing, Phosphating, E-coating | Led display, Motor controller, Telecom (aluminium die casting, Zinc die casting, mg die casting, AL Extrusion, cnc machining) |
| 3 | Expensive | Slight surface imperfections that can be removed by agreed-upon means are acceptable. | Decorative Coatings: Plating, Polished Finish, painting | Special Decorative Parts, chair leg, smart home (aluminium die casting, zinc die casting, cnc machining) |
Powder Coating
Sand-blasting
PAINTING
Vibration Finish
Anodized
Electrophoresis (E-Coating)
Plating
Heat Treatment
Polish
Impregnation
Phosphating
Silk Screen Printing