What are some common surface treatment processes for 3D welding tables?

1. Mechanical Surface Treatment
Sandblasting: Using a high-speed stream of abrasive particles to impact the surface, cleaning impurities and increasing roughness, which is beneficial for subsequent coating adhesion.
Metal brushing: Creating linear patterns through grinding, enhancing the decorative effect and eliminating surface defects.
Polishing: Improving surface smoothness, reducing friction and fouling.
2. Chemical and Electrochemical Treatment
Phosphating: Forming a phosphate film on the surface to improve corrosion resistance and coating adhesion.
Passivation: Forming a protective film through chemical treatment to further seal surface pores.
Anodizing (suitable for aluminum, titanium, etc.): Electrolytically generating an oxide film to enhance wear resistance and aesthetics.
3. Coating and Plating Technologies
Spraying: Covering with an organic or inorganic coating layer, providing both protection and decoration.
Electroplating: Such as chrome plating and nickel plating, which can improve wear resistance, conductivity, and aesthetics.
PVD (Physical Vapor Deposition): Depositing a high-hardness thin film (such as titanium nitride) under vacuum conditions, significantly improving surface hardness.
4. Other Special Processes
Micro-arc oxidation: Generating a ceramic film on the surface of aluminum, magnesium, etc., through electrolysis, providing both high hardness and corrosion resistance.
Nitriding treatment: Such as the QPQ process, which can improve surface hardness with minimal deformation, suitable for precision components.