Method for reducing defects of tail section billet of high-alloy stainless steel billet

The invention discloses a method for reducing defects of a tail section billet of a high-alloy stainless steel billet. The method is applied to the continuous casting production process of high-alloystainless steel, and comprises the following content: the cooling water amount of a secondary cooling zone for continuous casting secondary cooling is adjusted, the drawing speed is adjusted orderly according to the weight of a tundish, and the capping mode and the capping time of a crystallizer are controlled. According to the method for reducing the defects of the tail section billet of the high-alloy stainless steel billet, the problem that in the continuous casting production process, the tail section billet is poor in structure density, and consequently central looseness or even layeringoccurs can be solved, meanwhile, feeding of the middle section of the cast billet is strengthened, shrinkage cavities and looseness of the tail section billet are controlled at the cut tail part to the maximum extent, the roll