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传统的电渣重熔工艺存在着污染环境和比电耗过高的弊病。本工作探索到L-4和F-3(48％CaO、48％Al_2O_3、4％MgO)两种新渣系,将其在不同条件下进行了炉气中含氟量、比电耗和熔速的实测,并就采用新渣系重熔时沿锭高方向化学元素及渣成分、电渣锭高、低倍和机械性能、钢中氧和氧化物夹杂含量、氢行为、电渣锭密度和二次晶轴间距等进行了测定,证实了低、无氟渣的优越性。 文中对采用新渣系能降低比电耗和提高熔速的原因进行了讨论,并给出了实测结果;对新工艺条件下电极端头形状的形成机理给予了定性分析,还导出了相应的计算渣池电阻的数学公式:
The traditional electroslag remelting process has the disadvantages of polluting the environment and exceeding the power consumption. In this work, two new slag systems, L-4 and F-3 (48% CaO, 48% Al_2O_3 and 4% MgO) were explored and their contents of fluorine, Speed of the measured, and the use of new slag system remelting along the ingot along the direction of chemical elements and slag composition, ESR ingot high and low times and mechanical properties, steel oxygen and oxide inclusions, hydrogen behavior, electroslag ingot density And secondary crystal axis spacing were measured, confirmed the low, non-fluoride slag superiority. In this paper, the reason why the new slag system can reduce the specific power consumption and increase the melting rate is discussed, and the measured results are given. The formation mechanism of the electrode tip shape under the new process conditions is given qualitative analysis, and the corresponding Mathematical formula to calculate slag resistance: