Abstract:Targeted at the poor and unstable quality of the cooling water for aluminum alloy slab casting of one enterprise, the reasons for this problem were analyzed from such aspects as the operation mode of the cooling water system, slab casting process, production method, and makeup water quality. By improving the equipment operation mode, stabilizing the production capacity and casting process, regularly sampling, analyzing and testing the water quality, and exploring the water replenishment law, the cooling water quality was significantly improved, met the requirements of casting process, and effectively improved the quality of flat ingots.