Chemical components and manufacturing process of aluminum alloy material

The invention belongs to the technical field of aluminum alloy material processing, and relates to a chemical component ratio and a manufacturing process of an aluminum alloy material. The preparation method of the aluminum alloy material comprises the following steps: adding a certain proportion of other metal elements into an aluminum ingot of which the aluminum content is greater than or equal to 99.7%, sufficiently stirring, purifying a melt and standing in a melting furnace, and further refining grains, degassing and filtering the melt purity in a launder, thereby obtaining the aluminum alloy material. And a novel aluminum alloy material of an alloy round ingot or square ingot is obtained through a direct-cooling continuous casting system. An existing process route is utilized, implementation is easy, under the existing manufacturing process conditions, the using performance of a piston, an air cylinder head and the like of an automobile engine in the high-temperature and high-hydrogen atmosphere is met,