Al Si alloy has the following uses:
1. In the silicon content of more than Al-Si eutectic point (Si 11.7%) of the aluminum silicon alloy, silicon particles can obviously improve the alloy's wear resistance, the composition of a wide range of wear resistant alloy.
2. Used in the manufacture of low strength of the shape of complex castings, such as cover, motor shell, bracket, etc., are also used as brazing solder.
3. Al Si alloy is a kind of strong composite material, in the process of making steel instead of pure aluminum can improve the utilization rate of the alloy, and can purify the steel liquid, improve the quality of steel. Aluminum deoxidation steel ingot, commonly referred to as, calm steel, due to aluminum deoxidation is oxidized into alumina can refine austenite grain, so the aluminum deoxidation steel has good comprehensive mechanical properties.
4. Silicon aluminum alloy density of small, low thermal expansion coefficient, good casting properties and wear resistance, the casting alloy castings with high ability against impact and good high pressure tight of, and the service life is greatly improved. Often used in the production of aerospace vehicle and auto parts.
