extruded aluminum for sign making

Aug 16, 2022

Aluminum Co., Ltd. specializes in the production of extruded aluminum for sign making, mainly using 6063 or 6061 alloy, and its production process is: casting, extrusion and oxidation.

1. Casting is the first process of aluminum profile production, which is mainly divided into three steps: component ratio, melting furnace melting, and round rod deep well casting.

2. Extrusion Extrusion is a method of contouring. Aluminum designs and manufactures molds based on the cross-section of the profile products, and uses an extruder to extrude the heated round cast rods from the mold. During the extrusion process, 6063 or 6061 alloy also uses the air-cooling quenching process and the subsequent artificial aging process to complete the heat treatment strengthening. Different heat treatment strengthened alloys have different heat treatment systems. A

3. Oxidation: The surface corrosion resistance of extruded aluminum for sign making is poor, and surface treatment must be carried out by anodizing to improve the corrosion resistance, wear resistance and appearance of aluminum materials.

The oxidation process is roughly divided into three steps: surface pretreatment, anodizing and sealing. The extruded aluminum for sign making after oxidation, the oxide film is colorless and transparent. Before the sealing, the strong adsorption of the oxide film is used, and some metal salts are adsorbed and deposited in the pores of the film, which can make the outline appearance show many colors other than the original color (silver white), such as black, bronze.

After the above three steps, the extruded aluminum for sign making gets a perfect surface and achieves perfect advertising and instruction effects.

extruded aluminum for sign making

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