顺序共注中矩形板长宽尺寸比对芯层熔体前沿冲破的影响  

Effects of Aspect Ratio of Rectangle Plate on Core-Melt Breakthrough in Sequential Co-injection

作　　者：王涛[1] 傅建[1] 彭必友[1] 周盛[1] 

机构地区：[1]西华大学材料科学与工程学院,四川成都610039

出　　处：《塑料工业》2008年第B06期129-131,共3页China Plastics Industry

摘　　要：通过对矩形板试样顺序共注射成型过程的数值模拟分析,揭示了矩形板长宽尺寸比对芯层熔体前沿冲破的影响规律,建立了反映该影响规律的数学公式,并讨论了产生前沿冲破的原因。实验表明,顺序共注射中,矩形板长宽尺寸比对芯层熔体前沿冲破的影响是通过改变垂直熔体流动方向的制件截面积和芯层熔体的平均流速来实现的。Throng the numerical simulation experiment based on Moldflow Plastics Insight, the effect rule of the aspect ratio of rectangle plate on the core-melt breakthrough was revealed, and a mathematic formula which reflected this rule was created and the reasons for core-melt breakthrough were discussed. The experiment data indicated that via changing the plate-section size upright to the melt flow-direction and mean flow-rate of core melt, the effect of the rectangle-plate aspect ratio on the core-meh breakthrough was realized.

关 键 词：顺序共注成型 芯层熔体前沿冲破 数值模拟 

分 类 号：TQ320.66[化学工程—合成树脂塑料工业]