碳含量及连铸工艺参数对宽厚板坯结晶器热流的影响

特殊钢 ›› 2014, Vol. 35 ›› Issue (4): 36-40.

碳含量及连铸工艺参数对宽厚板坯结晶器热流的影响

王旭东¹, 尹少华¹, 孔令伟¹, 姚曼¹, 张晓兵², 陆洪周², 王雄², 倪涛²,

1大连理工大学材料科学与工程学院，大连116024；
2江苏沙钢集团，张家港215625

收稿日期:2014-02-24 出版日期:2014-08-01 发布日期:2022-09-03
作者简介:王旭东(1979-),男，博士(大连理工大学)，副教授,2001年大连理工大学(本科)毕业,连铸结晶器热、力联合检测、模拟及其应用的研究。
基金资助:
国家自然科学基金项目(51004012) 、
国家高技术研究发展计划(863)项目(2009AA04Z134）
和中国博士后科学基金项目(2012M520621/2013T60511)资助

Effect of Carbon Content and Casting Parameters on Heat Flux of Mold for Wide-Thick Slab during Concasting Process

Wang Xudong¹, Yin Shaohua¹, Kong Lingwei¹, Yao Man¹, Zhang Xiaobing², Lu Hongzhou², Wang Xiong², Ni Tao²

1 School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024;
2 Jiangsu Shagang Group, Zhangjiagang 215625

Received:2014-02-24 Published:2014-08-01 Online:2022-09-03

摘要/Abstract

摘要： 对钢厂0.07%~0.18%C钢220~320 mm×1 800~2700 mm宽厚板的连铸过程进行了一年的在线检测与统计,研究了不同碳含量的钢种的拉速(0.65~1.2 m/min),钢水过热度(13~35℃),结晶器进水温度(27~35℃)和结晶器液位(775~810 mm)等工艺参数对结晶器铜板热流的影响。结果表明,浇铸220 mm板坯的结晶器热流随拉速增加而上升,但拉速>1.05 m/min时热流不再增大;对具有包晶反应的钢种,宽面与窄面热流随钢液过热度的增加而增大,但进水温度升高,热流降低;受包晶相变收缩的影响,浇铸0.13%C钢时结晶器热流最低。

Abstract: The in-line examination and statistics on casting process for 220 ~ 320 mm x 1 800 ~ 2 700 mm wide-thick slab of 0.07% ~0,18% C steel have been carried out for one year at steel work to study the effect of process parameters including casting rate (0.65 ~ 1. 2 m/min), liquid superheating extent (13-35 ℃), mold inlet water temperature (27 -35°C) and mold liquid level (775 -810 mm) on heat flux of mold copper plate during casting process of steel grades containing different C%. Results show that with casting 220 mm slab with increasing casting rate the mold heat flux increases, but as casting rate more than 1. 05 m/min, the heat flux doesn't increase again； for the steel grades with peritectic reaction, with increasing liquid superheating extent the heat flux of wide and narrow face o£ slab increases, but with increasing inlet water temperature the heat flux decreases ； due to the effect of peritectic phase transformation, during casting 0.13% C steel the mold heat flux is lowest.

王旭东, 尹少华, 孔令伟, 姚曼, 张晓兵, 陆洪周, 王雄, 倪涛. 碳含量及连铸工艺参数对宽厚板坯结晶器热流的影响[J]. 特殊钢, 2014, 35(4): 36-40.

Wang Xudong, Yin Shaohua, Kong Lingwei, Yao Man, Zhang Xiaobing, Lu Hongzhou, Wang Xiong, Ni Tao. Effect of Carbon Content and Casting Parameters on Heat Flux of Mold for Wide-Thick Slab during Concasting Process[J]. Special Steel, 2014, 35(4): 36-40.