Title: Analysis of aluminum alloy extrusion production process Body text: Aluminum alloy profile is widely used in modern industry, and its production process mainly includes extrusion process. The extrusion process is to melt the aluminum alloy and pass the molten metal through the mold under high temperature and pressure through the extruder to obtain the profile of the required shape and size. The following will be detailed analysis of aluminum alloy profile extrusion production process. First of all, raw material preparation and handling is an important part of the extrusion process. The raw materials of aluminum alloy extrusion are mainly aluminum alloy ingots or aluminum alloy rods. Before production, the raw materials need to be strictly inspected to ensure that their chemical composition and physical properties meet the standards. At the same time, it is also necessary to clean the raw materials and remove the oxidation skin to remove the impurities on the surface of the raw materials and improve the surface quality of the extruded profiles. Secondly, mold design and manufacturing is the key to the extrusion process. The design of the mold needs to be carried out according to the shape and size requirements of the profile, and the mechanical properties and appearance requirements of the profile need to be considered. The material of the mold is generally cemented carbide or ceramic, which has good wear resistance and high temperature resistance. In the mold manufacturing process, it is necessary to use high-precision processing equipment to ensure the size and shape accuracy of the mold. Thirdly, the setting of extrusion process parameters has an important impact on the quality and production efficiency of profiles. Extrusion process parameters include extrusion temperature, extrusion speed, extrusion pressure, etc. These parameters need to be reasonably set according to the performance of the raw material, the design of the mold and the shape and size requirements of the profile. In actual production, it is necessary to find the best extrusion process parameters through continuous testing and adjustment. In the extrusion process, quality control is the key to ensure the quality of profiles. The temperature, speed, pressure and other parameters in the extrusion process need to be monitored in real time to ensure that their stability is in the best range. At the same time, it is also necessary to check the appearance quality of the profile, such as surface smoothness, dimensional accuracy, etc., to discover and deal with quality problems in time. Finally, the product post-treatment and quality inspection is the last link in the extrusion process. Product post-treatment mainly includes stress relief annealing, surface treatment, etc., in order to improve the mechanical properties and service life of profiles. Quality testing includes a comprehensive inspection of the profile's size, mechanical properties, appearance quality, etc., to ensure that it meets national standards and customer requirements. To sum up, the extrusion production process of aluminum alloy profiles is a complex and precise process, which requires strict control of each link in order to produce high-quality and high-performance aluminum alloy profiles.