Processing preparation method and application of material for large aluminum alloy die casting

The invention relates to a processing preparation method and application of a material for large-scale aluminum alloy die casting, and the preparation method comprises the following steps: step 1, calculating the theoretical addition amount of each element according to the weight required by production; 2, according to the component proportion, AL, Fe and Si raw materials are firstly added and evenly stirred to be melted, and aluminum-iron-silicon alloy melt is obtained; step 3, purifying the aluminum-iron-silicon alloy melt; 4, other needed element metals are added for alloy smelting; step 5, detecting the content of each element in the furnace, and refining after the content meets the standard requirements; step 6, detecting the alloy melt obtained by refining, and standing and cooling after the alloy melt is detected to be qualified; 7, performing high-pressure die casting after the components are detected to be qualified; and 8, after die casting is completed, a die casting is taken out and put into fire