Simulation of Thermal Insulation of Top-Surface Slag Layers in Continuous Casting Mold

钢铁研究学报(英文版), 2011, 18(10): 29-33.

Simulation of Thermal Insulation of Top-Surface Slag Layers in Continuous Casting Mold

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1.National Engineering Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081, China

2.National Engineering Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081, China

3.National Engineering Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081, China

4.National Engineering Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081, China

关键词：连铸结晶器 , 保温 , 模拟 , 顶面 , 计算模型 , 计算结果 , 浇注速度 , 热行为

Simulation of Thermal Insulation of Top-Surface Slag Layers in Continuous Casting Mold

Keywords： thermal insulation , temperature distribution , heat flux , temperature drop ,

A computational model of thermal behavior of the top-surface slag layers in continuous casting mold was applied to interpret the thermal insulation of mold powder. The temperature drop of liquid steel caused by heat re moral at the interface of molten steel and slag in mold was proposed to evaluate the thermal insulation of mold slag. The calculation results show that slag consumption is one of important factor influencing the temperature drop, while the casting speed has no obvious effect on it. With the increase of slag consumption, the temperature drop is increased.

参考文献

[1]	C.A. Pinheiro;I.V. Samarasekera;J.K. Brimacombe .Mold Flux for Continuous Casting of Steel[J].Iron & Steelmaker,1995(7):41-43.
[2]	Goldschmit M B;Gonzalez J C;Dvorkin E N .Finite Element Model for Analyzing Liquid Slag Development During Continu- ous of Round Bars[J].Ironmaking and Steelmaking,1993,20(05):379.
[3]	Neumann F;Neal J;Pedroza M A.Mold Fluxes in High Speed Thin Slab Casting[A].Pittsburgh:ISS,1996:249.
[4]	Watanabe K;Suzuki M;Murakami K.Development of Mold Powder for High Speed Casting of Middle Carbon Steel[A].Pittsburgh:ISS,1996:265.
[5]	Lidefelt H;Hasselstrom P.Characterization of the Functional Properties of Mold Powders for Continuous Casting of Steel[A].London:Metals Society,1982:101.
[6]	刘承军,姜茂发.连铸保护渣的绝热保温性能[J].钢铁研究学报,2002(03):1-4.
[7]	Kishimoto M;Maeda M;Mori K.Thermal Conductivity and Specific Heat of Metallurgical Slags[A].Warrendale:Metallurgical Society of AIME,1984:891.
[8]	Ponsford F H;Mills K C;Grievson P.Physical and Thermal Properties of Aluminate Slag[A].Glasgow:Institute of Metals,1988:332.
[9]	Nagata K;Susa M;Goto K S .Thermal Conductivities of Slags for Ironmaking and Steelmaking[J].Tetsu To Hagane-Journal of the Iron and Steel Institute of Japan,1983,69:1417.
[10]	Nagata K;Goto K S.Heat Conductivity and Mean Free Path of Phonons in Metallurgical Slags[A].Warrendale:Metallurgical Society of AIME,1984:875.
[11]	R.M. McDAVID;B.G. THOMAS .Flow and Thermal Behavior of the Top Surface Flux/Powder Layers in Continuous Casting Molds[J].Metallurgical Transactions.B.Process Metallurgy,1996(4):672-685.
[12]	ZHANG Xian-zhuo.Metallurgical Transport Phenomena[M].Beijing:Metallurgical Engineering Press,1988

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