High Precise Aluminum Die Casting Profiles Wood Grain Printed For Window OEM

ISO OEM Precision Aluminum Die Casting Profiles For Windows

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Electrochemical oxidation, aluminum and aluminum alloy chemical oxidation treatment equipment is simple, easy to operate, high production efficiency, no power consumption, wide application range, not subject to the size and shape of the parts. Oxide film thickness of about 5 ~ 20 microns (hard anodic oxidation film thickness up to 60 ~ 200 microns), has high hardness, good heat resistance and insulation, corrosion resistant ability higher than that of chemical oxidation film, porous, has good adsorption capacity.

Spray: external protection and decoration for equipment, usually based on oxidation. The aluminum parts should be pretreated before coating to make the coating and workpiece combine firmly. There are three general methods

1. Phosphating (phosphate method) 2, chromization (chromification without chromium) 3, chemical oxidation.

Anodic oxidation: the process by which electrolysis is applied to a thin layer of metal or alloy on some metal surface. Brush plating for local plating or repair. Roll plating for small pieces, such as fasteners, washers, pins, etc. By electroplating, it is possible to obtain decorative protective and functional surface layers on mechanical products, as well as repair parts for wear and machining errors. Plating solution is acidic, alkaline and acidic and neutral solution with chromium mixture added, regardless of the plating method, and to hang plating products and contact plating tank, plating solution, etc should have a certain degree of generality.

Chemical polishing chemical polishing is the use of aluminum and aluminum alloy manufacture in selective since the dissolution of acidic or alkaline electrolyte solution, to leveling system of polishing surface, in order to reduce its surface roughness, PH of chemical processing method. This kind of polishing method has the advantages of simple equipment, no power supply, no external dimension limit, high speed and low processing cost. The purity of aluminum and aluminum alloy has a great influence on the quality of chemical polishing. The higher the purity, the better the polishing quality, and the worse the contrast.

Passivation is the method to turn the metal surface into a state that is not easily oxidized, and to slow the corrosion rate of the metal.