Manufacturing method for strengthening aluminum alloy plate through high-strength heat treatment of air cushion furnace quenching

The invention discloses a manufacturing method of an aluminum alloy plate capable of being strengthened through air cushion furnace quenching and high-strength heat treatment, and relates to the technical field of high-strength heat treatment aluminum alloy plates capable of being strengthened through aluminum alloy strip quenching and strip cold hardening. The technical problem that the mechanical property of an existing aluminum alloy plate needs to be improved is solved. The manufacturing method comprises the following steps: weighing raw materials, casting an aluminum alloy solution, carrying out homogenizing annealing treatment, milling a surface, coating aluminum, heating, carrying out hot rolling, carrying out cold rolling, cleaning and trimming, carrying out solid solution quenching and deformation treatment, naturally aging, carrying out cold hardening and shearing. According to the method, the surface quality of the aluminum alloy plate can be enhanced through high-strength heat treatment of quenchi