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叶片钢1Cr12Ni2Mo2VN电极坯母材（/%:0.10C,0.24Si,0.81Mn,0.013P,0.002S,11.75Cr,2.63Ni,1.70Mo,0.32V,0.033N）的生产流程为30 t EAF-VOD-LF-2.67 t铸锭-退火-Φ250 mm锻坯。通过将ANF-6二元渣改成高纯度、低杂质NEUD06预熔四元渣,平均熔速由5.27 kg/min降低至3.5~4.0 kg/min等工艺措施,成功地生产出Φ430mm叶片钢1Cr12Ni2Mo2VN电渣锭（/%:0.10~0.12C,0.75~0.86Mn,0.21~0.24Si,0.011~0.014P,0.0001S,11.76~11.82Cr,2.54~2.61Ni,1.63~1.71Mo,0.31~0.32V,0.039N）。检验结果表明,电渣锭的组织为马氏体+0.5%~1.5% δ-铁素体,非金属夹杂物总和为1.5~2.0级,[O]15×10-6~17×10-6,[H]1.24×10-6~1.47×10-6,保证了电渣钢的质量。 相似文献
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