脉动压力诱导注射成型下的模腔压力响应  

Response of cavity pressure during pulsatile pressure induced injection molding

作　　者：殷小春 何光建 晋刚 瞿金平 

机构地区：[1]华南理工大学聚合物新型成型装备国家工程研究中心聚合物成型加工教育部重点实验室,广州510641

出　　处：《材料科学与工艺》2007年第6期872-875,共4页Materials Science and Technology

基　　金：国家自然科学基金项目(10472034);国家自然科学基金重大项目(10590351)

摘　　要：自行研制的脉动压力诱导注射成型装置成功地通过聚合物熔体将脉动变化的压力引入到注射成型的充模与保压过程.在该装置上进行实验,实验结果表明:模腔压力的波动频率与活塞杆的振动频率相一致;模腔压力的波动幅值随着活塞杆振幅的增大而增大;活塞杆的振动频率对模腔压力的波动幅值影响较小.A new type of vibration-assisted injection molding machine is introduced. Pulsatile pressure induced by mechanical vibration of the piston rod were introduced into the mold by the polymer melt. Experimental results show that the cavity pressure oscillation frequency corresponds with the piston rod frequency. The cavity pressure oscillation amplitude increases with the increase of piston rod vibration amplitude. The piston rod vibration frequency has little effect on the cavity pressure oscillation amplitude.

关 键 词：脉动压力诱导 注射成型 模腔压力 

分 类 号：TQ326.53[化学工程—合成树脂塑料工业]