薄壁制品微结构充填注射压缩成型中关键因素分析

摘要

利用正交实验和注射压缩成型方法,考察了温度和压缩工艺参数对薄壁制品不同位置3处微结构充填的影响.结果表明,距离浇口远近不同的微结构,其充填的影响因素不同;与温度因素相比,压缩工艺参数对微结构的充填起关键作用;压缩工艺参数中的打开距离和压缩速度对3处微结构的充填影响都较大,且打开距离越小,压缩速度越大越有利于微结构的充填.%Influences of temperature and technical parameters of injection compression molding on microstructure filling effect in three different positions of thin-wall products were investigated by an orthogonal experiment and an injection-compression molding method.The results indicated that the different distances from the sprue gate of microstructure generated different influences on the filling.Compared with the temperature as a factor,technical parameters of compression process played a pivotal role on the microstructure filling.The effects of open distance and compression speed on the filling in the three microstructures were much greater than others in the technical parameters.A smaller open distance value and a larger compression speed value were advantageous to the microstructure filling.