CAJ | 학술논문

对双极串联电渣重熔工艺原理、等效电路和供电特性进行理论分析，得到电极间距离、电极浸入渣池的深度和填充比是影响电流在渣池中的路径和分配比例的主要影响因素，并对双极串联渣池温度场进行数值模拟。结果表明，双极串联供电使渣池中高温区上移，较传统单极供电渣池中高温区远离渣金界面，有利于提高熔化速度而不影响钢锭凝固质量；双极串联抽锭电渣重熔工业试验结果证明，熔化速度增加2倍情况下钢锭内部凝固质量良好，表明渣池高温区上移减弱了熔化速度和钢锭凝固质量之间的关系。
대쌍겁천련전사중용공예원리、등효전로화공전특성진행이론분석，득도전겁간거리、전겁침입사지적심도화전충비시영향전류재사지중적로경화분배비례적주요영향인소，병대쌍겁천련사지온도장진행수치모의。결과표명，쌍겁천련공전사사지중고온구상이，교전통단겁공전사지중고온구원리사금계면，유리우제고용화속도이불영향강정응고질량；쌍겁천련추정전사중용공업시험결과증명，용화속도증가2배정황하강정내부응고질량량호，표명사지고온구상이감약료용화속도화강정응고질량지간적관계。
In this paper, the power characteristics of electroslag remelting with bifilar mode is analyzed theoret-ically, the results show that the interelectrode distanced,the depth of electrodes immersed into the molten slag pool and the electrode filling ratio are the main factors which affect the current path and its distribution in the slag pool. And the temperature field in slag pool with bifilar mode is simulated numerically, the results show the fact that the power supply in double electrode series moves up the high-temperature region in the slag pool which contributes to increase the rate of melting with the solidification quality of the ingots not influenced , compared with the high-temperature region far away from the metal-slag interface in the traditional single pow-er supply. Besides, the industrial tests have shown that the ESR ingot with bifilar mode has a good internal so-lidification quality when its melting speed is increased to two times, indicating that the relationship between the melting speed and the ingot solidification quality is weaken on the condition that the high-temperature re-gion moves up.