What processes do aluminum alloy profiles go through to become all-aluminum furniture?

by:Zeyi     2021-10-31
As a new type of health and environmental protection industry, all-aluminum home decoration has received the attention and respect of the state and government. Many all-aluminum home improvement companies have said a lot about the advantages of all-aluminum home improvement, but they did not disclose much about the manufacturing of aluminum alloy materials. In fact, the main processes used by aluminum alloy profile manufacturers to produce aluminum alloy profiles are casting, extrusion and oxidation. One. Casting: Casting is the first process in aluminum production. The main processes include batching, smelting, and casting: (1) Batching: According to the specific alloy grades produced, calculate the added amount of various alloy components and reasonably match various raw materials. (2) Smelting: According to the requirements of the smelting process, the prepared raw materials are added to the smelting furnace, and the methods of degassing and slag removal refining are used to effectively remove impurities and gases in the melt. (3) Casting: Under certain casting process conditions, through the deep well casting system, the aluminum liquid is cooled and cast into round bars of various specifications. 2. Extrusion: Extrusion is an important means of profile forming. First of all, a mold is designed and manufactured according to the cross-section of the profile, and the heated round cast rod is extruded from the mold by the extruder. There are also air-cooled quenching process and artificial aging process to complete the heat treatment and strengthening. Different grades of heat-treatable and strengthened alloys have different heat treatment systems. three. Oxidation: The surface corrosion resistance of extruded aluminum alloy profiles is not strong, and anodizing treatment must be carried out to improve the corrosion resistance, wear resistance and appearance of aluminum. Main process: (1) Surface pretreatment: clean the surface of the profile with chemical or physical methods to expose the pure matrix to obtain a complete and dense artificial oxide film. Mirror or matte (matte) surfaces can also be obtained by mechanical methods. (2) Anodization: Under certain process conditions, the surface of the profile after surface pretreatment will undergo anodization to form a dense, porous, and strong adsorption film. (3) Sealing: Seal the pores of the porous oxide film formed after anodic oxidation 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, some metal salts are adsorbed and deposited in the pores of the film, making the appearance of the profile showing a variety of colors other than the natural colors (silver white) such as black, bronze, golden, and stainless steel. Although all-aluminum home furnishing is a new star in the home furnishing industry, with the expansion of aluminum applications and the healthy and green advantages of aluminum alloy profiles, all-aluminum home furnishing has become an important supplement to solid wood and panel home furnishings, and it has also received increasing attention and favor from consumers.
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