10.3969/j.issn.1003-8620.2015.02.012
叶片钢1Cr12Ni2Mo2VN 1.1 t电渣锭重熔工艺的优化
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NEU_D06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Φ430 mm叶片钢1Cr12Ni2Mo2VN电渣锭(/%:0.10 ~0.12C,0.75 ~0.86Mn,0.21 ~ 0.24Si,0.011~0.014P,0.000 1S,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.
叶片钢1Cr12Ni2Mo2VN、电渣重熔、夹杂物、工艺优化
36
TG3;TK2
国家高技术研究发展计划资助项目863计划2012AA03A502
2015-04-23(万方平台首次上网日期,不代表论文的发表时间)
共4页
44-47