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 ›› 2010, Vol. 31 ›› Issue (6): 50-52.

• 工艺技术 • 上一篇    下一篇

低氧含量GCr15轴承钢生产工艺实践

巩飞1,董大西1,刘勇1,杨锋功1,战东平2,姜周华2   

  1. 1石家庄钢铁有限责任公司炼钢厂,石家庄053001:
    2东北大学材料与冶金学院,沈阳110004
  • 收稿日期:2010-06-28 出版日期:2010-12-01 发布日期:2022-10-28
  • 作者简介:巩 飞(1968-),男,高级工程师,1991年华东冶金学院毕业,特殊钢冶炼、精炼和连铸工艺研究。

Practice of Production Technology for Bearing Steel GCr15 with Low Oxygen Content

Gong Fei1, Dong Daxi1 , Liu Yong1 , Yang Fenggong1, Zhan Dongping2 , Jiang Zhouhua2   

  1. 1 Steelmaking Plant, Shijiazhuang Iron and Steel Co Ltd, Shijiazhuang 050031 ;
    2 School of Materials and Metallurgy, Northeastern University, Shenyang 110004
  • Received:2010-06-28 Published:2010-12-01 Online:2022-10-28

摘要: 针对石钢60 t LD-LF-VD-CC生产工艺,通过开发高碳低氧出钢、控制LD出钢下渣量、LF到位白渣技术、轴承钢专用精炼造渣工艺、分阶段吹氩工艺、优化连铸工艺等系统控制技术,使GCr15轴承钢平均全氧含量(T[O])明显降低,平均T[O]从原工艺的9.6×10-6降低到6.34×10-6,T[O]≤7×10-6的炉数占到总炉数的82.8%,工艺改进效果显著。

关键词: 60 t LD-LF-VD-CC, 轴承钢GCr15, 氧含量

Abstract: According to the 60 t LD-LF-VD-CC production process at Shijiazhuang steel, the average total oxygen content (T[O] ) in bearing steel GCrl5 decreases obviously by improving a series of process control technology such as tapping at condition of high carbon and low oxygen content in steel, controlling LD tapping slag amount, white slag technology at LF refining station, applying special slagging process for bearing steel, changing argon blowing rate at different refining period and optimizing casting process, the average T[O] decreases from original 9. 6 x 10-6 to 6. 34 x 10-6 and the heats with T[O] ≤7 X 10-6 account for 82. 8% of the total melting heats to get marked effect by improved process.

Key words: 60 t LD-LF-VD-CC, Bearing Steel GCr15, Oxygen Content