Views: 0 Author: Site Editor Publish Time: 2024-12-19 Origin: Site
Aluminum alloy is an alloy material synthesized from aluminum and other metal elements in a certain proportion. Aluminum profiles refer to aluminum products with specific cross-sectional shapes made from aluminum alloy raw materials (aluminum ingots or aluminum rods) through extrusion, stretching and other processing processes. Simply put, aluminum alloy is the composition of materials, and aluminum profiles are finished products after aluminum alloy processing.
Aluminum profiles are divided into several categories according to application fields, shapes, surface treatments and alloy compositions. One is construction profiles, which are mainly used in the construction industry, such as door and window frames, windows, etc., and usually use 6063 aluminum alloy. Second, industrial profiles are mainly used to manufacture parts for various industrial equipment and machines. 6061 aluminum alloy and 6063 aluminum alloy are usually used. Finally, there are some transportation profiles and electronic profiles, which are used in automobiles, railways, and the casings of some electronic products.
The formation process of aluminum profiles is usually completed through the extrusion molding technology of aluminum alloys, that is, aluminum rods/ingots go through three processes of casting, extrusion and surface treatment to obtain different aluminum profiles. The main process of aluminum profiles includes the following steps:
Heating
The aluminum ingot or rod is heated to a suitable temperature (usually 450°C to 500°C) to make it soft and easy to extrusion.
Extrusion molding
The heated aluminum alloy raw materials are put into the extruder, and the aluminum alloy is pushed through a mold of a specific shape through high pressure to form aluminum profiles with different cross-sectional shapes.
Anodizing
Extruded aluminum alloy profiles must be anodized to enhance the corrosion resistance, wear resistance and appearance of the aluminum profile surface.
Sealing
Although the aluminum oxide film (i.e. anode film) generated during the anodizing process has a certain degree of corrosion resistance and hardness, there are tiny pores on the surface of the anode film (the pore diameter is about 5-50 nanometers). The purpose of the sealing treatment is to seal these. Tiny pores.
This process ensures the quality, appearance and performance of aluminum profiles, which are widely used in various fields such as construction, transportation, electronics, machinery, etc.
