ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2015, Vol. 36 ›› Issue (2): 44-47.

• 工艺技术 • 上一篇    下一篇

叶片钢1Cr12Ni2Mo2VN 1.1 t 电渣锭重熔工艺的优化

严清忠1,陈 列1,李发文1,佐辉1,吴彬1,鲁延明1,李 征1,赵海东1,成国光2   

  1. 1. 西宁特殊钢股份公司二炼分厂,西宁810005 ;
    2. 北京科技大学冶金与生态工程学院,北京100083;
  • 收稿日期:2014-10-24 出版日期:2015-04-01 发布日期:2022-08-23
  • 作者简介:严清忠(1971-),男,工程师,1996年北京科技大学(本科)毕业,电渣冶金工艺技术研究。
  • 基金资助:
    国家高技术研究发展计划资助项目(863计划) (2012AA03A502)

Optimization on Remelting Process of 1.1 t ESR Ingot of Blade Steel 1Cr12Ni2Mo2VN

Yan Qingzhong1 , Chen Lie1 , Li Fawen1 , Zuo Hui1 , Wu Bin1 , Lu Yanming1 , Li Zheng1 , Zhao Haidong1 , Cheng Guoguang2   

  1. 1. No2 Steelmaking Plant, Xining Special Steel Co Ltd, Xining 810005;
    2. Metallurgical and Ecological School, University of Science and Technology, Beijing 100083;
  • Received:2014-10-24 Published:2015-04-01 Online:2022-08-23

摘要: 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。

关键词: 叶片钢1Cr12Ni2Mo2VN, 电渣重熔, 夹杂物, 工艺优化

Abstract: The production flowsheet of electrode of blade steel 1Cr12Ni2Mo2VN (/% : 0.10C, 0.24Si, 0.81 Mn, 0.013P, 0. 002S, 11.75Cr, 2.63Ni, 1.70Mo, 0.32V, 0.033N) is 30 t EAF-VOD-LF-2.67 t ingot casting-annealing- Φ250 mm bloom forging process. With the process measures including to modify ANF-6 binary slag to high cleanliness low inclusion NEU_D06 premelting quaternary slag, decrease the average remelting rate from 5.27 kg/min to 3.5-4.0 kg/min, the Φ430 mm blade steel 1Cr12Ni2Mo2VN ESR ingots (/% : 0.10-0.12C, 0.75-0.86Mn, 0.21-0.24Si, 0.011-0.014P, 0.000IS, 11.76-11.82Cr, 2.54-2.61Ni, 1.63-1.71Mo, 0.31-0.32V, 0.039N) are successfully produced. Examination results show that the structure of ESR ingot is martensite +0.5% 〜1.5% δ ferrite , total rating of nonmetallic inclusions is 1.5-2.0, the [O] is 15 x 10-6-17 X 10-6 and the [H] is 1.24 x 10-6-1.47 x 10-6 to insure the quality of ESR steel.

Key words: Blade Steel 1Cr12Ni2Mo2VN, ESR, Inclusion, Process Optimization