摘要
针对现有600 t级钢锭模结构,通过理论分析建立了适合低压转子用大钢锭凝固过程中传热及宏观偏析的数学模型。采用有限元数值模拟方法,利用Procast商业软件及自编专用程序分析了钢锭模的冷却条件、高径比、锥度对凝固过程温度分布、缩孔疏松及宏观偏析的影响规律。模拟结果及生产实践表明:现有600t级钢锭模结构比较合理,且数值模拟计算能够为生产提供理论依据与指导。
Aiming at the mold structure of 600 ton steel ingot,the mathematical model for heat transfer and macro-segregation in solidification process of large steel ingot for low-voltage rotor was established by theoretical analysis.Finite element method was used in numerical simulation,and the influence of steel ingot mold cooling conditions,height-diameter ratio and taper on the temperature distribution,shrinkage and macro-segregation during solidification process was analyzed by Procast commercial software and self-specific procedure.The results of numerical simulation and productive practice show that the mold structure of 600 ton steel ingot is feasible,and the numerical simulation could provide theoretical basis and guide for manufacturing.
出处
《大型铸锻件》
2012年第2期12-16,共5页
Heavy Casting and Forging
关键词
钢锭模结构
大钢锭凝固
数值模拟
steel ingot mold structure
large ingot solidification
numerical simulation
