摘要
注塑制品的残余应力影响制品的形状、表面质量及使用性能。在分析残余应力产生的机理和原因的基础上,应用软件模拟实验方法,介绍了降低残余应力的方法,结果发现冷却方式与熔体温度对残余应力的影响很大,其次是模具温度、保压压力和保压时间的影响,程度依次递减。得出的结论对工程实际应用有一定的指导意义。
The residual stress in injection molded parts affected shapes and surface quality of the product and its performance. On the basis of analysing the mechanism and causes of generating residual stress, the ways to reduce residual stresses was described by simulation software. It was found that melt temperature and cooling mode had a great influence on residual stress, followed by the effects of mold temperature,holding pressure and holding pressure time. The conclusions had a certain significance to practical application of engineering.
出处
《塑料》
CAS
CSCD
北大核心
2011年第5期6-8,105,共4页
Plastics
基金
载运工具与装备教育部重点实验室资助
华东交通大学2010年校立科研课题(10JD07)
关键词
残余应力
注塑件
冷却系统
热黏弹本构方程
保压压力
residual stresses
injection molded parts
cooling system
thermoviscoelastic constitutive equation
