摘要
Through laboratory tests and theoretical analysis a mathematical model of bentonite burn out in the poured mould has been established, and it has been found that the bentonite burn out rate is an exponential function of heating temperature and time of the mould. Related to the temperature field the bentonite burn out field in the poured mould has been simulated numerically, which can be used for determining the bentonite burn out of moulding sand.
通过试验和理论分析，建立了砂型中膨润土烧损的数学模型，揭示了膨润土烧损率与砂型所受热作用的温度和时间遵循指数关系．利用数值模拟方法对砂型温度场和烧损场进行了相关计算。
