文档介绍：万方数据I摘要熔铸AZS33耐火材料在玻璃工业中应用较为广泛。采用计算机对其充型凝固过程进行仿真分析,可以直观的观测到其充型凝固过程,定量的分析充型、传热凝固规律及各种因素对凝固过程的影响,预测并减少AZS33砖缺陷的产生。本文针对AZS33耐火材料砖的铸造特点,建立了熔铸耐火材料流动、传热及凝固过程的数学模型,以尺寸为721mm×506mm×850mm的耐火材料砖为研究对象,采用ProCast软件模拟计算了不同时刻熔铸材料在铸型型腔瞬时充型流动的过程、不同时刻的温度场分布、凝固进程。预测了铸件是分层凝固,由表面向铸件中心逐渐冷却。并模拟了不同浇冒系统、不同温度对铸件缩松缩孔缺陷的影响,选取体积为840mm×640mm×850mm的冒口可将缩松缩孔缺陷转移到浇冒系统中,结合实际生产,考虑环境和成本因素,选择较为合适的浇注温度为1810oC。耦合温度场分析,采用循序耦合场直接耦合分析的方法,结合熔铸材料凝固过程中的相变效应,构造了热-相变-力学耦合情况下的力学本构关系,建立了相应的应力计算模型。模拟计算了熔铸过程的应力场分布,探究了不同铸型材料、不同保温层材料对于应力场的影响,预测了热应力的变化过程是先增大,增大到一个峰值后随着传热趋于稳定,应力值会不断减小并趋于稳定,且应力主要集中在棱边中点附近。综合考虑应力峰值和峰值持续时间,选择硅砂作为保温层材料,硅藻土作为保温层材料。关键词:AZS33耐火材料砖;温度;应力;数值模拟万方数据IIAbstractFused cast AZS33 refractory material widely used in glass industry. Simulation analysis of AZS33 brick mold filling process by puter, can be intuitive to observe its filling solidification process, and it also can be quantitative analysis the filling and solidification heat transfer rule and the influence of various factors on the solidification process, forecast and reduce thegeneration of AZS33 brick .In this paper, according to the casting characteristics of AZS33 refractory brick,a mathematical model of flow, heat transfer and solidification process is established. The research object is based on the size of 721mm×506mm×850mm refractory bricks. The casting material in the mould cavity instantaneous filling flow process, the field of temperature distribution, the solidification process during different time were simulated by using ProCAST software. The casting is layered and solidified, and the casting center is gradually cooled by the surface. The influence of different pouring temperature and differentpouring system on the shrinkage porosity of the casting are also simulated. And select the riser is 840mm×640mm×850mm canbe transferred to the shrinkage defects into the gating riser system. Considering the actual production the environment and the cost factor, the choice of the appropriate pouring