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考察了本工作第一部分中所提出的新的电渣过程化学反应及传质横型对SAE1020钢实验室交流电渣重熔的适用性,重熔试验在容量为1t的250kVA电渣炉上进行。锭子名义直径为200mm,相直的电极直径为76mm;所用渣系分别为70wt-％CaF_2+30wt-％Al_2O_3(在Ar气氛下)和50wt-％CaF_2+30wt-％Al_2O_3+20wt-％CaO(在空气中)。重熔过程达稳定状态后分别向渣池分点加入FeO或Ca粉,以使体系内产生不连续的氧化-还原反应。用该模型估计锭子和渣的化学成分,结果表明,在试验条件下,该模型与实际重熔过程的观测值非常相符。
The new electroslag process chemical reaction and mass transfer transverse type proposed in the first part of this work were investigated for the applicability of SAE1020 steel in laboratory AC reflow remelting. The remelting test was carried out on a 250kVA electroslag furnace with a capacity of 1t. The nominal diameter of the spindles is 200 mm and the diameter of the straight electrodes is 76 mm. The slag systems used are 70 wt-% CaF 2 + 30 wt-% Al 2 O 3 (under Ar atmosphere) and 50 wt-% CaF 2 + 30 wt-% Al 2 O 3 + 20 wt-% CaO in the air). Remelting process up to a steady state were added to the slag pool separately FeO or Ca powder, so that the system produces discontinuous oxidation-reduction reaction. The model was used to estimate the chemical composition of the spindle and slag. The results showed that the model was in good agreement with the actual remelting process under the experimental conditions.