320mm×480mm大方坯凝固过程数值模拟及验证  

Numerical Simulation and Verification of Solidification Process for 320 mm×480 mm Bloom

作　　者：高维[1] 李京社[1] 杨树峰[1] GAO Wei LI Jingshe YANG Shufeng(School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China)

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083

出　　处：《工业加热》2016年第6期31-34,共4页Industrial Heating

摘　　要：以某钢厂的大方坯连铸机为研究对象,采用商业软件Pro CAST建立凝固模型,并通过射钉实验和红外线测温对模型进行验证,确保模型的准确性。将模型推广到轴承钢、弹簧钢和低合金钢,发现都能很好的与实际匹配,说明建立的大方坯凝固模型能够模拟该连铸机生产的所有钢种。经计算,轴承钢的液芯为21.31 m;弹簧钢的液芯为20.50 m;低合金钢的液芯为19.94 m。In combination with the actual situation of a bloom continuous caster,a mathematical model was established to investigate the solidification using Pro CAST package,which was validated by comparing the shell thickness achieved by the nail shooting experiment and the surface temperature achieved by infrared measurement to improve the accuracy of the mathematical model. The mathematical model,which matched with the solidification process of the bearing steel,the cord steel and the low alloy steel,could predict the shell thickness of all kinds of steel in the bloom continuous caster. The calculation results showed that the liquid core length of the bearing steel was 21.31,the liquid core length of the cord steel was 20.50,the liquid core length of low alloy steel was 19.94.

关 键 词：连铸 射钉法 坯壳厚度 数值模拟 

分 类 号：TF777.2[冶金工程—钢铁冶金]