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Metal Surface Treatment Process Pk, Who More People?
Jul 10, 2017

As we all know, metal surface treatment technology is involved in the metal industry. Nowadays, the surface treatment technology active in the metal industry is "uneven". In the face of various surface treatment processes on the market, who is the real people? Today, we'll take you to the bottom of the story.

1, Alloy catalytic liquid technology

The alloy catalytic solution is suitable for all kinds of metal materials and can be catalyzed as long as it can be soaked. At room temperature to 83 ℃ or so can be processed products. Processing, the general immersion in the metal length of about 15-20 minutes, soaked with water washed clean, natural air-dry can be used. Seal preservation at ambient temperature and pressure for up to 3-5 years will not deteriorate. The technology of alloy catalytic liquid is applied in the fields of petroleum, chemical industry, aviation and automobile. It has the environmental characteristics of the industry people alike.

2. Mechanical Polishing

Mechanical polishing mainly by cutting, material surface plastic deformation removed by the polished convex part and get smooth surface polishing method, general use of oil stone, wool wheel, sandpaper and so on, to manual operation, special parts such as the surface of the body, can use turntable and other ancillary tools, surface quality requirements can be used super polishing method.

This technique can be used to achieve Ra0.008μm surface roughness, is the highest of all kinds of polishing methods, optical lens mold is often used in this way.

3, coating phosphating

Coating phosphating to thin film phosphating, film thickness generally in the 1~5um, the most suitable for the bottom of the paint, the thinner film, then coated on the film of the film resistance to mechanical deformation higher, the gloss and adhesion properties of the film is also the best.

After phosphating treatment, the corrosion process will be limited to the place where the coating is damaged, because the remaining parts are still firmly bonded with the matrix, and are non phosphating membranes, which form no micro-cells, thus inhibiting the corrosion of the film.

4, Electroplating

Electroplating is the process of depositing a thin layer of other metals or alloys on certain metal surfaces using an electrolytic principle, which is to prevent metal oxidation by attaching a layer of metal film to the surface of a metal or other material workpiece by electrolysis.

Electroplating to improve wear resistance, conductivity, reflective, corrosion resistance and enhance the role of beauty. The outer layer of many coins is also plated.

5, Electrophoresis

Electrophoresis is an electrophoretic coating at the yin and yang Poles, applied to the voltage action, with the charge of the coating ions moved to the cathode, and the cathode surface produced by the action of the alkaline material to form insoluble, deposited on the workpiece surface.

Electrophoresis paint film has the advantages of fullness, uniformity, smoothness and smoothness of coating, and the hardness, adhesion, corrosion resistance, impact performance and permeability of electrophoretic film are better than other coating processes.

6, anodizing

Anodic oxidation is the electrochemical oxidation of metals or alloys. Aluminum and its alloys in the corresponding electrolyte and specific process conditions, due to the effect of external current, on the aluminum products (anode) formation of a layer of oxide film process. Anodic oxidation, if not specifically indicated, usually refers to sulfuric acid anodizing.

Surface treatment technology has become an indispensable link in the use of aluminum alloy, and the anodic oxidation technology is the most widely used and most successful.