Classification of aluminum alloy processing technology

Cast aluminum alloys can be divided into aluminum-silicon alloys, aluminum-copper alloys, aluminum-magnesium alloys, aluminum-zinc alloys and aluminum dilute alloys according to their chemical composition. Among them, aluminum-silicon alloys are simple Aluminum-silicon alloy (cannot be strengthened by heat treatment, lower mechanical properties, good casting performance), special aluminum-silicon alloy (can be strengthened by heat treatment, higher mechanical properties, good casting performance).
       ; The aluminum alloy profile is divided into several strands through the shunt hole and re-assembled in the welding chamber. Due to the existence of the shunt bridge, a rigid zone for metal flow is inevitably formed at the bottom of the bridge, which makes the diffusion and bonding speed of metal atoms slower. Layer conduction reduces the density of the metal structure. For aluminum alloy profiles, it is inevitable that there will be welds when extruding profiles with a split combined die; but a good weld can prevent the profile from appearing such as black bands after surface treatment. To ensure the quality of the weld, the metal at the weld in the welding chamber must be fully diffused and bonded. Otherwise, looseness, coarse particles, and uneven organization of other parts will be formed to save energy and reduce consumption. Therefore, the degree of deformation should be greater, especially The metal deformation of the welding chamber should be large to form a large hydrostatic pressure. With the application of thermal insulation technology to aluminum alloy profiles, the thermal insulation performance of aluminum alloy doors and windows has been greatly improved, which is one of the main reasons why thermal insulation aluminum alloy doors and windows are favored by more and more builders.
       ;Aluminum alloys are divided into two categories: cast aluminum alloys, which are used in the as-cast state; deformed aluminum alloys, which can withstand pressure processing. Can be processed into various shapes and specifications of aluminum alloys. Mainly used for the manufacture of aviation equipment , Building doors and windows, etc.

According to the processing method, aluminum alloys can be divided into deformed aluminum alloys and cast aluminum alloys. Deformed aluminum alloys are divided into non-heat-treatable reinforced aluminum alloys and heat-treatable reinforced aluminum alloys. The non-heat-treatable reinforced type cannot be improved by heat treatment, and can only be strengthened by cold working deformation. It mainly includes high-purity aluminum, industrial high-purity aluminum, industrial pure aluminum, and anti-rust aluminum. Heat-treatable reinforced aluminum alloys can be passed through Heat treatment methods such as quenching and aging to improve mechanical properties can be divided into duralumin, forged aluminum, super-duralumin and special aluminum alloys.

      Aluminum alloy density Low, but relatively high strength, close to or exceeding high-quality steel, good plasticity, can be processed into various profiles, with excellent electrical conductivity, thermal conductivity and corrosion resistance, widely used in industry, and the amount of use is second only to steel.
      < /span>Aluminum alloys are divided into two categories: cast aluminum alloys, used in the as-cast state; deformed aluminum alloys, can withstand pressure processing, and can be processed into aluminum alloys of various shapes and specifications. Mainly used for the manufacture of aviation equipment, Building doors and windows, etc.
       Aluminum alloys can be divided into deformed aluminum alloys and cast aluminum alloys according to processing methods. Deformed aluminum alloys are divided into non-heat-treatable reinforced aluminum alloys and heat-treatable reinforced aluminum alloys. Non-heat-treatable reinforced aluminum alloys The mechanical properties cannot be improved by heat treatment, and can only be strengthened by cold working deformation. It mainly includes high-purity aluminum, industrial high-purity aluminum, industrial pure aluminum, and anti-rust aluminum. Heat-treatable reinforced aluminum alloys can be quenched and aging, etc. Heat treatment means to improve the mechanical properties, it can be divided into duralumin, forged aluminum, super duralumin and special aluminum alloy.