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 (3): 27-29.

所属专题: 齿轮钢

• 工艺技术 • 上一篇    下一篇

110 t EAF-LF-RH-CC-连轧流程 Φ110 mm ~ Φ150 mm 22CrMoH齿轮钢的试制

曹燕光1,王毛球1,徐 乐1,刘剑辉1,董 瀚1,胡芳忠2, 孙 维2   

  1. 1钢铁研究总院特殊钢研究所,北京100081 ;
    2马鞍山钢铁股份有限公司,马鞍山243000
  • 收稿日期:2014-12-19 出版日期:2015-06-01 发布日期:2022-08-17
  • 作者简介:曹燕光(1985-),男,博士研究生(钢铁研究总院),2009年北京科技大学(本科)毕业,合金结构钢研究。

Pilot Production of Φ110 mm ~ Φ150 mm Gear Steel 22CrMoH by 110 t EAF-LF-RH-CC-Continuous Rolling Flowsheet

Cao Yanguang1, Wang Maoqiu1 ,Xu Le1, Liu Jianhui1 , Dong Han1, Hu Fangzhong2 ,Sun Wei2   

  1. 1 Institute fbr Special Steels, Central Iron and Steel Research Institute, Beijing 100081 ;
    2 Ma’anshan Iron and Steel Co Ltd, Ma'anshan 243000
  • Received:2014-12-19 Published:2015-06-01 Online:2022-08-17

摘要: 通过电弧炉留钢操作,控制EAF终点[C]≥0.10%,LF精炼白渣时间≥30 min,利用淬透性预测模型微调钢水中元素含量,控制中间包钢水过热度15~30℃、结晶器、铸流和末端电磁搅拌等工艺措施,试制的Φ110mm~Φ150 mm 22CrMoH齿轮钢(/%:0.20~0.22C,0.26~0.28Si,0.73~0.75Mn,0.007~0.012P,0.001~0.004S,1.05~1.09Cr,0.37~0.39Mo)的氧含量为8×10-6~10×10-6,轧材J15△HRC值≤4,夹杂物≤1.0级,低倍组织≤1.0级。

关键词: 22CrMoH齿轮钢, 110 t EAF-LF-RH-CC流程, 淬透性带宽, 氧含量, 试制

Abstract: With the process measures including using arc furnace heels operation, controlling EAF end [ C ] ≥ 0. 10% , LF refining white slag time ≥30 min, using hardenability calculated model to micro-adjusting the elements content in liquid, controlling tundish liquid overheating extent 15 ~30 °C , mold, strands and end electromagnetic stirring, the oxygen content in pilot production of Φ110 mm ~ Φ150 mm gear steel 22CrMoH (/% : 0.20-0.22C, 0.26- 0.28Si, 0.73-0.75Mn, 0.007-0.012P, 0.001 -0.004S, 1.05-1.09Cr, 0.37-0.39Mo) is 8x10-6 -10x10-6 , the rolled products J15 △HRC value ≤4, the rating of inclusions ≤1. 0, and the rating of macro-structure ≤1. 0.

Key words: Gear steel 22CrMoH, 110 t EAF-LF-RH-CC Flowsheet, Hardenability Band Width, Oxygen Content, Pilot Production