Experimental Research of Mold Powder Entrapment in Wide Slab Caster Mold
SUN Yanhui1,WEI Yaohuan1,CAI Kaike1,HE Kuangnian2,XIAO Jiguang2
1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;2. Technology Center, Shaoguan Iron and Steel Co., Ltd., Shaoguan 512123, Guangdong, China
Abstract：According to four widths of wide slab caster mold, a water model with 1∶1 ratio was used to study the effect of argon injection of nozzle,immersion depth of nozzle,ports number of nozzle,bottom shape of nozzle, casting speed and width of the mold on the flow patterns in the mold.Different mechanisms of mold powder entrapment in different regions of mold were observed: in SEN region,the powder entrapment is caused by vortex and level fluctuations;at 1/4 width from narrow face caused by level fluctuations; and near narrow faces caused by “quasivortex” and flow cuts.Thus， the powder entrapment in the mold has relation to various process parameters. The powder entrapment can be reduced by optimization of technological parameters.
孙彦辉;韦耀环;蔡开科;何矿年;肖寄光. 宽板坯连铸结晶器内卷渣现象试验研究[J]. 钢铁, 2007, 42(11): 31-0.
SUN Yanhui;WEI Yaohuan;CAI Kaike;HE Kuangnian;XIAO Jiguang. Experimental Research of Mold Powder Entrapment in Wide Slab Caster Mold. Iron and Steel, 2007, 42(11): 31-0.
2007, Vol. 42 
