Aluminum alloy plate strip cast rolling equipment

The utility model discloses aluminum alloy plate strip cast-rolling equipment, which belongs to the technical field of aluminum alloy rolling, and is characterized in that a two-stage degassing box is designed, an adding port of a grain refiner is arranged at the inlet end and/or the outlet end of the two-stage degassing box, and residues of gas in alloy can be effectively reduced by utilizing twice stirring of the two-stage degassing box, so that the service life of the aluminum alloy plate strip is prolonged, and the service life of the aluminum alloy plate strip is prolonged. In addition, the temperature fluctuation of the inlet end and the outlet end of the two-stage degassing box can be reduced and controlled within the range of +/-1 DEG C through two-time temperature control adjustment of the two-stage degassing box, so that absorption of a grain refiner (namely aluminum-titanium-boron wires) is facilitated, and the heat conductivity of the aluminum alloy is improved. The refining effect is improved, so