High precision 304 304L tp304 316 15-5ph custom size surface plate Mid Thick 201 stainless steel on plate square

Common surface treatment processes for stainless steel include mirror finish, sandblasting, coloring, wire drawing, acid washing, etc.

1 Mirror Surface

To improve the surface roughness of mechanically processed stainless steel materials and stainless steel surfaces treated with spot welding, electric welding, sub arc welding, and heat treatment, it is necessary to polish the products to obtain a highly smooth and glossy appearance, meeting the purpose of surface finishing of stainless steel products. According to the complexity of stainless steel products and different user requirements, methods such as mechanical polishing, chemical polishing, and electrochemical polishing can be used to achieve mirror gloss. The mirror gives people a feeling of high-end simplicity and a fashionable future. Stainless steel has a wide range of surface polishing, from ordinary matte treatment to soft polishing, to specific texture patterns and colors of polishing treatment, all the way to highly mirror polishing. This brings more choices for imaginative designers. Bright polishing should be careful not to produce glaring reflections or heat reactions. Special attention should be paid to the design of buildings facing sunny and sunken areas.

2 Sandblasting treatment

Sandblasting can be divided into two types: dry and wet sandblasting. Wet sandblasting has more advantages in terms of work efficiency compared to dry sandblasting, and can effectively improve the working environment of sandblasting operations. Liquid sandblasting generally uses a mixed medium of water, glass beads, or quartz sand. The mixed medium is propelled by compressed air to spray onto the surface of stainless steel at high speed. With the impact and cutting effects of particles in the medium on the surface of the component, the required cleanliness and roughness are achieved. Sandblasting has strong applications in engineering and surface technology, such as improving the viscosity of adhesive parts, removing dirt, optimizing surface burrs after mechanical processing, and surface matte treatment. The sandblasting process is more uniform and efficient than manual polishing, and using this method to treat stainless steel can create low-key and durable stainless steel products.

3 Coloring treatment

The colorful colors not only enhance the decorative and artistic properties of stainless steel, but also enhance its corrosion resistance and wear resistance. At present, the production process of colored stainless steel is relatively mature, and there are various methods for coloring the surface of stainless steel. The methods for coloring the surface of stainless steel include chemical oxidation coloring, electrochemical oxidation coloring, ion deposition oxide coloring, high-temperature oxidation coloring, and gas-phase cracking coloring. The phenomenon of mutual interference of light is the fundamental reason for the color development of colored stainless steel, and the physical parameters such as the thickness, chemical composition, microstructure, surface smoothness, and incident light of the oxide film layer of colored stainless steel determine the color tone.

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