摘要：试验了Incoloy825合金电极（/%：0.01C,0.21Si,0.41Mn,0.007S,0.019P,22.33Cr,39.08Ni,3.04Mo,2.14Cu,1.17Ti,0.17A1）由3t中频炉＋3t AOD冶炼,并经抽锭电渣重熔成280mm×325 mm坯（/%：0.01C,0.210.23Si,0.40Mn,0.005S,0.0230.024P,22.4822.50Cr,39.1039.13Ni,3.053.07Mo,2.142.15Cu,1.001.10Ti,0.150.18Al）。试验表明,Incoloy825合金方坯抽锭电渣重熔过程中,由于Ti烧损,渣中TiO2含量不断增加,熔渣的粘度也不断上升,导致钢渣不易分离。通过改进抽锭电渣重熔渣系配比,采用（/%）57CaF2,15CaO,5MgO,15Al2O3,5SiO2,3TiO2渣系以及控制电极熔化速度680kg/h,重熔过程加0.43kg/t铝粒以控制Ti烧损,使Incoloy825合金铸坯表面质量明显改善。

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