Aluminum and aluminum alloys have a series of advantages such as light weight, high strength, corrosion resistance and recyclability. They are widely used in building materials, decoration, aerospace, automation industry, etc. A large number of aluminum products can be recycled after reaching the end of their service life. Due to the mixture of various grades of aluminum alloys, scrap aluminum contains various impurities and pores. After remelting, the comprehensive mechanical properties of the recycled aluminum alloy are seriously affected and cannot reach the mechanical standards of original aluminum. Therefore, how to regenerate scrap aluminum and make its performance close to or reach that of original aluminum is currently a topic that needs to be studied urgently.

The flux refining method developed based on the adsorption purification principle is a simple, fast and most effective method to remove gases and inclusions from aluminum melts. It has been recognized by domestic and foreign researchers as an aluminum melt purification treatment technology with great economic benefits and broad prospects. Lanthanum, as a relatively cheap rare earth element, has been widely studied in alloy microstructure optimization. Therefore, for the refining of waste aluminum melts and alloys, it is necessary to explore and analyze the influence of rare earth flux on the properties of aluminum melts and their alloys.

Research shows that rare earth composite flux has a good purification effect on aluminum liquid, removes hydrogen and other gases and other inclusions in aluminum liquid, reduces the porosity of the sample, reduces casting defects, and thus improves hardness. At the same time, rare earth elements also have the effect of refining and modifying, reducing and homogenizing the size of the grains, hindering the movement of dislocations in the recycled aluminum alloy, thereby improving its hardness.

Suzhou KP Chemical Co., Ltd can provide some rare earth salts are used to add to rare earth composite flux such as Lanthanum chloride, Cerium chloride, Lanthanum cerium chloride, Lanthanum fluoride, Cerium fluoride, Lanthanum carbonate and Cerium carbonate. Please contact info@szkpchem.com or 086-18915544907.