7 major processes for surface treatment of metal sofa legs

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There are many surface treatment processes for metal sofa legs. There are 7 mainstream surface processing processes in the market. Most of the surface treatment of accessories in the early stage is to change the mechanical, physical, and chemical properties of the surface of the base material to improve the surface protection technology of the product's corrosion resistance and wear resistance. The traditional surface treatment methods mainly include: galvanizing, electrophoresis, bluing, blackening, passivation, phosphating, spraying, coloring, baking paint, impregnation, shot blasting, etc.



Forming an oxide film on aluminum products or other alloys, anodizing can provide hardness and wear resistance, has good heat resistance and insulation, and improves corrosion resistance. The yield level of anodizing is related to the cost of the final product. The key to improving the oxidation yield lies in the appropriate amount of oxidant, the appropriate temperature, and the current density, which requires structural parts manufacturers to continuously explore and seek breakthroughs in the production process.




Using compressed air as the power, the impact of high-speed sand flow is used to clean and coarsen the metal surface, improve the fatigue resistance of the workpiece, increase the adhesion between it and the coating, and extend the durability of the coating.


Chrome plating

Good surface finish, no rust spots, chrome plating can prevent material corrosion, furniture hardware accessories, and automotive industry use a lot, the advantage is that it will not cause a lot of deformation, and can increase the hardness of the product.



Powder spraying

Good environmental protection, powder can be recycled, powder spraying process is rich in colors. Improve the fatigue resistance of the workpiece, increase the adhesion between it and the coating, and extend the durability of the coating.



Spraying / oil spraying

With the help of pressure, the liquid material is dispersed into uniform and fine droplets applied to the surface of the coated object with high production efficiency, rich colors, and a good anti-corrosion effect.




Polishing refers to the use of mechanical, chemical, or electrochemical effects to reduce the surface roughness of the workpiece to obtain a bright and flat surface. It is a modification process of the workpiece surface using polishing tools and abrasive particles or other polishing materials. For different polishing processes: rough polishing (basic polishing process), medium polishing (finishing process), and fine polishing (glazing process), the selection of suitable polishing wheels can achieve the best polishing effect and improve polishing efficiency.



Metal brushing

Metal brushing refers to the process of grinding the product to form a film layer containing the metal component on the metal surface, clearly showing every tiny trace so that the matte metal has a fine hair-like luster. It makes the sofa legs have both fashion and technological elements.