Aluminum-strontium alloy can refine the eutectic silicon and primary silicon in the alloy, and improve the mechanical properties of the alloy. Its modification has good long-term performance and good remelting stability. The amount of strontium added is generally controlled between 0.02-0.04%. For example, the content of strontium in aluminum-strontium alloy is 10%, and the addition ratio is between 0.2-0.4%, which can guarantee the effect of deterioration. Generally, the aluminum-strontium alloy is added to the alloy, and the aluminum-strontium alloy is usually preheated to 200-300 degrees, and then added according to the proportion after removing the corresponding others.
