Surface quality control method in ultrahigh-strength electroslag steel ingot smelting process

The invention discloses a surface quality control method in an ultrahigh-strength electroslag steel ingot smelting process, which comprises slag system control, power distribution parameter control and crystallizer cooling system control, and comprises the following steps of: designing five-element slag system component content, designing corresponding power distribution parameters and designing crystallizer cooling water flow; the problems of discontinuous slag film and heavy skin on the surface of an electroslag ingot when a crystallizer lifting ingot pulling type slab electroslag furnace is used for producing high alloy steel are solved, and the effect is remarkable. 本发明公开了一种超高强电渣钢锭冶炼过程表面质量控制方法，包括控制渣系、配电参数和结晶器冷却制度，本发明通过对五元渣系组元成分含量的设计，相应配电参数的设计，和结晶器冷却水流量的设计，解决了使用抬结晶器抽锭式板坯电渣炉生产高合金钢存在的渣膜不连续，电渣锭表面重皮问题，效果显著。