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气阀钢NCF3015Φ280 mm×1700 mm电极(/%:0.03~0.08C,13.5~15.5Cr,30~33.5Ni,1.7~2.1Al,2.4~2.9Ti,0.65~0.80Mo,0.65~0.80Nb,0.002~0.006B)经全同轴式惰性气体保护电渣重熔成Φ340 mm0.80 t电渣锭。在使用三元预熔渣70CaF_(2)-15Al_(2)O_(3)-15CaO以熔速为4 kg/min的全氩气保护条件下,试验了气阀钢NCF3015电渣过程中Al、Ti烧损的烧损量及Si的变化情况