Electrolytic action of the surface of the metal attached to a layer of metal film process, to prevent corrosion. Weldability, conductivity, and enhance the role of aesthetic technology. Usually plating is gold, silver, nickel, zinc, tin.
Advantages: After plating the surface layer of high gloss, beautiful metal appearance, is a surface treatment process to meet most of the electronic components.
2: anodic oxidation
Mainly aluminum anodic oxidation, is the use of electrochemical principles, in the aluminum and aluminum alloy surface to generate a layer of aluminum oxide film. This oxide film has special characteristics such as protective, decorative, insulating, and abrasion resistance
Advantages:It can enhance the strength and realize any color except white. It can realize nickel-free sealing and meet the requirement of nickel-free in Europe, America and other countries.
3: Electrophoresis
Used for stainless steel, aluminum alloy, etc. It can make the products show various colors and keep the metallic luster, meanwhile, it can enhance the surface performance and have better anticorrosion performance.
Advantages: can do multi-color surface treatment, can realize the surface treatment of complex structure; and can cooperate with sandblasting, polishing, drawing subsequent process.
4, micro-arc oxidation
In the electrolyte solution (generally weak alkaline solution) to apply high voltage to generate ceramicized surface film layer of the process, the process is a physical discharge and electrochemical oxidation synergistic results.
Advantages: ceramic texture, mostly used for appearance, and good heat dissipation performance, but a single color and higher cost.
5, PVD vacuum plating
Physical vapor deposition, is the main use of physical processes to deposit thin films of technology.
Advantages: the metal surface can be coated with high hard plating, high wear-resistant metal ceramic decorative plating
6, powder coating
is the use of powder spraying equipment (electrostatic spraying machine) to the surface of the powder coating to the workpiece, under the action of electrostatic discharge, the powder will be adsorbed on the surface of the workpiece uniformly, the formation of a powder coating; powder coating after high-temperature baking and curing of flattening, into the powder coating. The powder coating is baked at high temperature, leveled and cured to become the final coating with different effects (different kinds of effects of powder coating).
Rich in color, high gloss, matte optional; lower cost, suitable for construction furniture products and chassis shells, etc., masking defects ability
7, metal drawing
is through the abrasive products on the surface of the workpiece to form a line pattern, play a decorative effect of a means of surface treatment. According to the different patterns after drawing can be divided into: straight drawing, messy drawing, ripple, spinning.
Advantages: drawing treatment can make the metal surface to obtain non-mirror-like metal luster, and at the same time, drawing treatment can also eliminate the subtle defects on the metal surface.
8, sandblasting
Using compressed air as a driving force to form a high-speed jet beam will be sprayed at high speed to the surface of the workpiece to be processed, so that the surface of the surface of the workpiece outside the appearance or shape of the change, to obtain a certain degree of cleanliness and a different degree of roughness of a process.
Advantages: Realize different reflective or matte. It can clean the tiny burrs on the surface of the workpiece and make the surface of the workpiece smoother.
9, polishing
A finishing process that utilizes flexible polishing tools and abrasive particles or other polishing media on the surface of the workpiece.
Advantages: does not change any physical properties of the material, can be used as a pretreatment process for other surface treatment.
Advantages.