在真空自耗电弧熔炼过程中,头部补缩期作为熔炼的最后操作阶段,补缩质量的好坏将直接影响到铸锭头部组织的好坏及切头量的多少,进而影响铸锭成材率的高低。利用DOE试验方法,将大规格钛及钛合金铸锭切头损失有效减小,并给出了影响因素,获得并验证了最优化的补缩工艺参数,减少了铸锭的切头损失。 In the process of vacuum consumable arc melting, the head refill period is the final operation phase of smelting. The quality of shrinkage will have a direct impact on the quality of ingot head tissue and the amount of cut head, thus affecting the casting Ingot into the rate of high and low. Using the DOE test method, the head loss of the large size titanium and titanium alloy ingot is effectively reduced, and the influencing factors are given. The optimum technological parameters of the shrinking process are obtained and verified, and the cutting head loss of the ingot is reduced.