The EAF state can be divided into normal state(ignite arc, insert well, main melting, rising temperature) and abnormal state(belly superheater, cover superheater, pole break ).

• 电弧炉的炉况分为正常炉况(点弧、穿井、主熔化、熔末升温)和异常炉况(电极高位断裂、炉盖过热、炉体过热)两种类型。