The production process of aluminium profiles
The production process of aluminum profiles mainly includes three steps: casting, extrusion and coloring (coloring mainly includes: oxidation, electrophoretic coating, fluorocarbon compound coating, powder coating, wood grain transfer, etc.).
Main process:
(1) Composition: Calculate the quantity of various alloy components based on the specific alloy grade to be produced and reasonably match various raw materials.
(2) Smelting: The prepared raw materials are added to the smelting furnace in accordance with the process requirements for melting. Through degassing and slag refining, impurities and gases in the melt are effectively removed.
(3) Casting: Under certain casting process conditions, molten aluminum is cooled through a deep well casting system and cast into various circular casting rods.
2. Extrusion
Extrusion is a means of profile forming. First, design and manufacture the mold based on the cross-section of the profile product, and then extrude the heated round cast bar from the mold through an extruder. The commonly used 6063 grade alloy also undergoes air-cooled quenching after extrusion and artificial aging treatment to complete heat treatment strengthening. Heat-treatable reinforcing alloys of different grades have different heat treatment schemes.
3. Coloring (mainly about the oxidation process here)
Oxidation: The surface of extruded aluminum alloy profiles is not corrosion-resistant and must be treated with anodic oxidation to enhance the corrosion resistance, wear resistance and appearance of aluminum. Almost all the high partition aluminum profiles produced by Jane High Partition Aluminum Profile Factory have been oxidized.
Main process:
(1) Surface pretreatment: The surface of the contour is cleaned by chemical or physical means to expose a pure matrix, which promotes the acquisition of a complete and dense artificial oxide film. Mirror-like or frosted (matte) surfaces can also be obtained through mechanical methods.
(2) Anodic oxidation: After surface pretreatment, under certain process conditions, the surface of the substrate undergoes anodic oxidation to form a dense, porous, and strongly adsorptive al2o3 film.
(3) Sealing: The pores of the porous oxide film formed by anodic oxidation are closed, which prevents the contamination of the oxide film and enhances its corrosion resistance and wear resistance. The oxide film is colorless and transparent. By taking advantage of the strong adsorption property of the oxide film before sealing, some metal salts are adsorbed and deposited in the pores of the film. Therefore, the appearance of the contour can be represented by many other colors besides the natural color (silver white), such as black, bronze, gold and stainless steel.
The company specializes in the production of aluminum casings, aluminum casing processing, aluminum alloy casings, power aluminum casings, mobile power bank casings, and heat sink casings, among other industrial profiles. It has won the hearts of many well-known domestic and foreign enterprises. The company is striving to become a trusted aluminum manufacturing service provider.
