Aluminum Die Casting Surface Finished
The purpose of Aluminum Die Casting Surface Finished is to increase its corrosion resistance, wear ability, improve the air tightness performance and resistance to fatigue fracture, The common aluminum die-cast surface finished are as follows:
1) Anodized of Aluminum Die Casting Surface Finished
Anodizing method is using DC, AC DC electrolysis principle, a layer of an oxide film is formed in the parts or the surface of the article, in order to increase the resist capacity and beautiful appearance. For aluminum, chromic acid anodizing, oxalic acid anodizing, the sulfuric acid anodizing, hard anodized, magnetic anodizing and phosphoric acid anodizing. Points, from the color of the surface treatment can be divided into black anodized color anodized.
2） Chrome plated of Aluminum Die Casting Surface Finished
Chrome plated is using parts as cathode, and the formation of the coating material as an anode, and both of them placed in a slot in the plating liquid, and then pass to the DC or AC and DC, so that the formation of the coating material ionized from plating solution Miles ran toward the surface of the aluminum die casting parts firmly to different thickness of the coating formed there on enchanted.
3) Shot Blast of Aluminum Die Casting Surface Finished
The purpose of shot blast is to make the surface of the aluminum alloy castings (1-1.5 mm) plastically deformed crystal lattice distortion, to improve alloy fatigue fracture and resistance to stress corrosion cracking, and extend the life of the casting.
4) Powder coating of Aluminum Die Casting Surface Finished
powder coating is Spray electrostatic as we usually talked, it is using electrostatic generator to make plastic powder charged, adsorbed on the iron surface, then 180 ~ 220 ℃ baking powder melting adhesion to metal surfaces, spray products used for indoor useof the box, the film presents a flat or matte finish.Spray powder mainly acrylic powder, a polyester powder.
Anodic Oxidation, Aluminum or Aluminum Alloy products for the anode in the electrolyte solution for power handling, the use of electrolysis to the surface of the alumina film process, known as the anodized aluminum and aluminum alloy. After anodizing, the aluminum surface can generate a few microns or a few hundred microns of oxide film. Than the natural oxide film of aluminum, corrosion resistance, abrasion resistance and decoration has significantly improved and enhanced.
The main Aluminum Die Casting Surface Finished purposes are:
(1) improve the wear-resistant parts, corrosion resistance and weather resistance to corrosion.
(2) oxidation of a transparent film, coloring made from a variety of color film.
(3) as a capacitor dielectric film.
(4) binding with the organic coating. For coating the bottom.
(5) for the bottom of plating
Electrophoretic Paint (electrophoretic coating), also known as the electrophoretic coating, electrophoresis is becoming increasingly popular with the defects of conventional spray constantly emerge. Electrophoretic paint industry began to replace old ones, electrophoresis paint from the anode to the cathode electrophoretic paint, electrophoretic paint from a single component to the two-component electrophoretic paint, electrophoretic paint development also contributed to the development of the electrophoretic coating, so that more Products to use the spray technology but the use of electrophoresis.