1. Casting is the first process in the production of aluminum. The first process is: (1) Ingredients: According to the detailed alloy trademarks that need to be produced, calculate the increase of various alloy components, and rationally allocate various raw materials. (2) Smelting: The prepared raw materials are melted in the melting furnace according to the technical requirements, and the slag and gas in the melt are effectively removed through the degassing and slag removal methods. (3) Forging: Under certain forging technical conditions, the molten aluminum is cooled and forged to form round cast rods of various specifications through a deep well forging system. 2. Kneading: Kneading is the technique of profile forming. First, design and manufacture a mold according to the product section of the profile, and use an industrial aluminum profile
profile kneading machine to extrude the heated round cast rod from the mold. The commonly used trademark 6063 alloy also uses an air-cooling quenching process and subsequent artificial aging process during kneading to complete heat treatment strengthening. Heat treatable strengthening alloys with different trademarks have different heat treatment guidelines. 3. Coloring (The oxidation process will be discussed first here) Oxidation: The surface of the kneaded aluminum alloy profile is not strong in corrosion resistance, and it must be surface treated by anodizing to increase the corrosion resistance and wear resistance of the aluminum material. The performance and the aesthetics of the surface. The main process is: (1) Surface pre-treatment: clean the surface of the profile by chemical or physical methods to expose the pure matrix, in order to obtain a perfect and fine artificial oxide film. It is also possible to obtain a mirror or matte (matt) surface by mechanical manipulation. (2) Anodizing: The surface of the pre-treated profiles will undergo anodization on the surface of the substrate under certain technical conditions to form a fine, porous, and strong adsorption AL203 film. (3) Sealing: The pores of the porous oxide film formed after anodization are closed to enhance the anti-pollution, corrosion resistance and wear resistance of the oxide film. The oxide film is colorless and transparent. Using the strong adsorption of the oxide film before sealing, the adsorption and accumulation of some metal salts in the film pores can make the surface of the profile flash a lot of colors other than the natural color (silver white), such as: black, bronze, Golden yellow and stainless steel color, etc. ————The article comes from the Internet. If there is any infringement, please contact to delete it.
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