Casting method for preventing sand burning and mold core sintering

The invention provides a casting method for preventing burnt-on sand and mold core sintering, which comprises the following steps: S1, manufacturing a mold core of a cooling pipeline, enabling a pre-buried pipeline to penetrate through two sides of a sand box after box closing, connecting the pre-buried pipeline with a molten salt circulating system, and pressurizing to ensure no leakage; s2, a heating system is started to enable the molten salt in the storage tank to be kept in a liquid state, a first valve is opened, and the molten salt is conveyed to a cooling pipeline through a circulating pump to continuously bake the mold core; s3, the temperature of the molten salt is kept at 200-500 DEG C, casting is carried out based on the mold core, and then continuous cooling is carried out; s4, the first valve is closed, the second valve is opened, the fused salt is collected into the storage tank for heat preservation storage, the circulation system is cut off, and the fused salt in the working storage tank is e