COPPER-ALUMINUM COMPOSITE BOARD PREPARED BY MEANS OF MOLTEN ALUMINUM CONTINUOUS CASTING, AND PROCESS THEREOF

The present invention provides a copper-aluminum composite plate material prepared by aluminum liquid continuous casting and a process thereof, and belongs to the field of composite plate material technologies. The method includes: S1, heating an aluminum ingot to 700-800°C and smelting for 1-3 h; S2, degassing smelted aluminum liquid, and keeping the temperature and standing; S3, texturing a copper strip, and then cleaning; S4, heating the pretreated copper strip to 200-650°C; S5, under the protection of inert gas, continuously casting the treated aluminum liquid on the treated copper strip, performing quenching crystallization on a copper-aluminum composite material, and performing oxygen-free continuous casting; and S6, continuous rolling: rolling the continuously cast copper-aluminum composite material to obtain the copper-aluminum composite plate material prepared by aluminum liquid continuous casting. The copper-aluminum composite plate material prepared by aluminum liquid continuous casting according to the present invention has improved the wettability of an aluminum-copper metal interface, and has high bonding strength, small interface thickness, high composite strength, good mechanical properties, low cost, high efficiency and broad application prospects.