摘要
在深入分析注射成型工艺过程、注塑件缺陷类型及产生原因的基础上,针对注塑件成型过程中的非线性及多因素耦合作用对注塑件质量的影响,提出了一种基于二次回归正交设计的质量预测方法。并以注塑件件重为质量指标,通过对注塑件成型时的模具温度、熔体温度、注塑压力和注射速度及其耦合作用进行回归分析及方差计算,建立了注塑件件重的预测模型。预测模型计算结果显示,注塑件件重与实验测量值最大误差仅为0.05%,表明建立的预测模型能够较为准确地反映注塑工艺参数及其耦合作用与注塑件件重之间的关系。
Based on the deep analysis of injection molding process and the type and cause of plastic part defects,a quality prediction method is proposed using quadratic regression orthogonal design,according to the effect of nonlinearity and coupling effect on the part quality.Moreover,a forecasting model is set up,taking the part weight as quality index,through regression analysis and variance calculation of mold temperature,melt temperature,injection pressure,injection velocity and their coupling effects.The calculated results of forecasting model show that the maximum error of part weight and measured value is only 0.05%.This indicates the forecasting model can comprehensively reflect the influence relation of the injection molding parameters and their coupling effect on plastic part weight.
出处
《工程塑料应用》
CAS
CSCD
北大核心
2010年第1期30-34,共5页
Engineering Plastics Application
关键词
注射成型
注塑件件重
回归正交设计
预测模型
injection molding
plastic part weight
regression orthogonal design
forecasting model
