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 ›› 2011, Vol. 32 ›› Issue (3): 17-19.

• 综述 • 上一篇    下一篇

电渣重熔用预熔渣的开发和应用

姜周华,董艳伍,张新法,杨帆   

  1. 东北大学材料与冶金学院,沈阳110004
  • 收稿日期:2010-12-17 出版日期:2011-06-01 发布日期:2022-10-17
  • 作者简介:姜周华(1963-),男,博士,教授,《特殊钢》编委,1983年东北大学毕业,钢铁冶金。

Development and Application of Premelted Slag for Electroslag Remelting Process

Jiang Zhouhua, Dong Yanwu, Zhang Xinfa , Yang Fan   

  1. School of Materials and Metallurgy, Northeastern University, Shenyang 110004
  • Received:2010-12-17 Published:2011-06-01 Online:2022-10-17

摘要: 预熔渣是电渣重熔生产高质量和高端合金材料的必要造渣原料..实验研究了新渣料和预熔渣在湿 度90%大气下存放的增重率;新渣料中石灰含量对渣料吸潮性能的影响;新渣料和预熔渣对重熔过程钢中氢含量 的影响。应用结果表明,用电熔法制成预熔渣进行电渣重熔,吨钢电耗降低100 -200 kWh,钢锭成材率提高3%以 上,电渣锭无损探伤合格率大幅提高,显著降低钢中氢含量和改善钢锭表面质量。

关键词: 电渣重熔, 预熔渣, 氢, 质量控制, 保护气氛

Abstract: Premelted slag is a necessary flux addition for electroslag remelting process to produce high quality and superalloy materials. The weight gain rate of fresh and premelted slag in atmosphere with 90% relative humidity, the influence of lime content in fresh slag on moisture absorption performance of slag and the effect of fresh slag and premelted slag on hydrogen content in steel during electroslag remelting (ESR) process have been tested and studied. Application results show that as the premehed slag manufactured by electro-fusion method is used in ESR process, the electric power consumption per ton steel decreases by 100 -200 kWh, the yield of products increases by more than 3% , the qualified rate of ESR ingot by nondestructive test obviously increases, the hydrogen content in steel greatly lowers and the surface quality of ESR ingot is improved.

Key words: ESR, Premelted Slag, Hydrogen, Quality Control, Shielding Atmosphere