中厚板坯连铸轻压下位置预测模型开发  

Development of soft reduction zone prediction model for medium-thick slab continuous caster

作　　者：田勇[1] 李镇[1] 张相春[1] 温铁光[1] 魏元[1] 

机构地区：[1]鞍钢股份有限公司炼钢总厂,辽宁鞍山114021

出　　处：《炼钢》2012年第5期61-64,共4页Steelmaking

摘　　要：以鞍钢股份有限公司炼钢总厂四工区中厚板坯连铸机为对象,基于凝固-传热学基本理论,建立了板坯连铸三维凝固传热计算模型。该模型根据二冷区铸坯表面实际水流密度分布和辊子接触传热建立边界条件,计算出整个铸坯固相分数分布,并实现了不同钢种和不同工艺条件下铸坯的凝固末端位置的可视化处理,确保现场工艺人员能够针对不同钢种制定相应的轻压下工艺,为新钢种生产工艺开发创造了有利条件。In this study, a mathematical model with heat transfer and solute diffusion is developed for simulating the solidification process of slab in the slab casters in the No. 4 Continuous Casting Operating Area of the Steelmaking Plant in Angang Steel Co. , Ltd. The model can be used to calculate distribution of solid phase fraction and visualize the inner solidification process of Slab. In practical production the calculation results of the model are used to determine soft reduction zone. The soft reduction with model-predic- ted parameters can be used for designing the corresponding continuous casting process for various steel grades and developing new process.

关 键 词：连铸 轻压下 凝固过程 数值模拟 内部质量 

分 类 号：TF777.1[冶金工程—钢铁冶金]