Abstract: The GH2132 alloy (1.90% ~2. 30%Ti) has the problems of large loss of Ti element ( A[Ti]0. 37% ~ 0. 57% ) in ESR process, the Ti content in steel is only 1. 83% ~ 1. 89% in ESR middle and last period. By adopting (/% ) CaF： Al₂O₃： CaO： TiO₂ =75： 15： 5： 5 slag system to replace original CaF270% + Al₂O₂0% slag system, the unstable oxide (SiO₂ + FeO) in the slag is controlled to be less then 0. 6% , and die controlled melting rate of the smelting process decreases from 6. 1 -6. 3 kg/min to 5. 3 -5. 6 kg/min, etc technological measures, as a result, the Ti content in steel at ESR ingot each part is 2. 06% ~2. 21% , and the Ti burning loss A[Ti] decreases to 0. 19% ~0. 34%, ESR ingots are sampled to check the inclusions after forging, and it is found that the inclusions have also been significantly improved after the process adjustment. The class inclusions of D fine system is controlled below rating 0. 5, which meets the requirements.

摘要： GH2132合金（1.90%～2.30%Ti）重熔过程中Ti烧损量大（Δ[Ti]0.37%～0.57%）,重熔中、后期钢中Ti含量仅为1.83%～1.89%。通过采用（%）CaF₂:Al₂O₃:CaO:TiO₂=75:15:5:5渣系替代原CaF270%+Al₂O₃ 30%渣系,控制渣中不稳定氧化物（SiO₂+FeO）≤0.6%、冶炼过程熔速控制从原6.1～6.3 kg/min降至5.3～5.6 kg/min等工艺措施,电渣锭各部位的Ti含量为2.06%～2.21%,Ti烧损量Δ[Ti]降至0.19%～0.34%。电渣锭锻造开坯后取样对夹杂物进行检验,发现通过工艺调整后夹杂物也有明显改善效果,D类细系夹杂物控制在0.5级以下,符合供货要求。

关键词: GH2132合金电渣重熔, 渣系, 夹杂物