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 ›› 2006, Vol. 27 ›› Issue (6): 15-17.

• 试验研究 • 上一篇    下一篇

连铸过程结晶器内液态保护渣中MnO含量变化模型

王新月,金山同,苍大强   

  1. 北京科技大学冶金与生态工程学院,北京100083
  • 收稿日期:2006-04-24 出版日期:2006-11-01 发布日期:2023-03-01
  • 作者简介:王新月(1978-),女,博士研究生,连铸系列保护渣配方设计 研究及产品开发。

Model for Changing of MnO Content in Mold Flux during Concasting

Wang Xinyue, Jin Shantong , Gang Daqiang   

  1. School of Metallurgical and Ecological Engineering, University of Science and Technology, Beijing 100083
  • Received:2006-04-24 Published:2006-11-01 Online:2023-03-01

摘要: 根据建立的MnO含量变化模型得出,增大反应的表观速率常数k、渣-钢界面面积和反应时间,则保护渣中MnO含量增加。保护渣中MnO初始含量和初始[Mn]亦影响保护渣中MnO含量的变化。实验表明,16Mn钢Φ300mm坯连铸过程保护渣中初始MnO含量为1.5%,30min后提高到2.2%;Q235钢板坯连铸时,保护渣初始(MnO)量从0%提高到2.51%时,保护渣的熔化温度由1069℃降到1063℃,1300℃粘度由0.165Pa.s降至0.142Pa.s。

关键词: 结晶器, 保护渣, MnO含量, 模型

Abstract:  Based on established a model for changing of MnO content, it was obtained that with increasing apparent rate constant k, flux-steel interfacial area and reacting time, the MnO content in flux increased. The initial (MnO) and initial [Mn] influenced MnO content in flux. The test results showed that during steel 16Mn 4)300 mm billet concasting, the initial MnO content in flux was 1. 5% , after casting for 30 min it increased to 2. 2% ; and during steel Q235 slab casting, as initial (MnO) in flux increased from 0% to 2. 51% , the melting temperature of flux decreased from 1 069 Y to 1 063 ℃ , of which the viscosity at 1 300 ℃ decreased from 0. 165 Pa , s to 0. 142 Pa • s.

Key words:  , Mold, Flux, MnO Content, Model