论文部分内容阅读
在分析砂箱内部加速度分布与压力的作用下模样流变行为的基础之上，通过数学方法推导不同边界条件下，聚苯乙烯（ＥＰＳ）板弯曲变形的勒夫级数解的待定参数，并将其应用于消失模箱体件在紧实过程中所出现变形缺陷的计算分析上，结果表明：箱体件敝口向上、采用顶注工艺与分层加砂紧实工艺可防止模样产生较大变形。
Based on the analysis of the rheological behavior of the sample under the acceleration and pressure distribution inside the flask, the parameters to be determined of the Löw-level series solution of bending deformation of the polystyrene (EPS) plate under different boundary conditions are derived mathematically The results of the calculation and analysis of the deformation defects of the lost foam box body during the compaction process show that the box body is opened upwards and the top injection process and the layered and sand compacting process can prevent the appearance of the samples Big deformation.