The invention provides a
casting rolling device and method for an aluminum
alloy plate blank, belongs to the field of aluminum
alloy casting-rolling equipment and production, and aims at solving the technical problems of the
casting rolling method for producing thick aluminum
alloy plate blanks. The device comprises a casting port, a platform, a casting-rolling roller, an
electromagnetic field generating device and / or a
pulse power supply, and a water spraying cooling device. The casting rolling method comprises the following steps: mixing materials of the aluminum alloy based on the content ratio of each component, and
smelting into a melt; conveying the aluminum alloy melt into the casting port of the device to form a standing plate so as to form a solidified housing with proper thickness on the surface of the plate blank; starting the water spraying cooling device, the
electromagnetic field generating device and / or the
pulse power supply to perform casting-rolling after the standing plate is formed; stopping casting-rolling after the plate blank reaches a certain length, so as to obtain the aluminum alloy plate blank. With the adoption of the device and the method, a casting-rolling area can be prevented from early solidifying, so that the segregation of the plate blank can be reduced; in addition, the melt can be prevented from
pollution while a structure is refined.