The coarse needle-like and lamellar tissue in Al-Si alloy are transformed into spherical or granular tissue through physical and chemical modification to reduce the puncture and splitting by needle and lamellar tissue on the matrix, making the metallographic structure more compact and uniform, and improving the mechanical properties and wear resistance properties.

Make the metal which are at high melting point, difficult to melt or easy to burn into the master alloy material which is easier to melt and be alloyed. Reduce the production process temperature and time, reduce energy consumption and metal loss, improve the actual metal yield, reduce the cost and emission of pollutants.

Through chemical reaction and physical intervention at high temperature, the impurities in the metal melt precipitate and separate to improve metal purity, improve metal mechanical properties and electrical conductivity.