摘要
针对塑料制品的翘曲问题,通过分析注塑的基础理论,确定了降低翘曲的思路;在计算机辅助工程(CAE)中优化了熔体及模具温度、充模条件和冷却条件,使制品的最大翘曲值由4.09 mm降到了0.92 mm;通过流前分析,预测了熔接线和气穴的位置,并以此指导模具排气系统设计,最终完成了模具计算机辅助设计(CAD)。并且发现,翘曲值对各项工艺参数的敏感程度不一。
For the warping of plastic products, the basic theory of the injection molding was analyzed to determine the way of thinking of lowering warping. By optimizing the melt and mold temperature, mold filling and cooling condition in the computer aided engineering （CAE）, the maximum warping of products decreased from the 4.09 mm to 0.92 mm. By analyzing flow before, the position of weld line and air hole were predicted, which was used to guide the mold exhaust system design and complete the mould computer aided design （CAD） finally. Additionally, the warping value is found to have different sensitivity to various process parameters.
出处
《塑料工业》
CAS
CSCD
北大核心
2016年第2期71-74,82,共5页
China Plastics Industry
基金
南阳市科技攻关重点支持计划(2013GG037)
关键词
翘曲
计算机辅助工程
计算机辅助设计
工艺参数
优化
Warp
Computer Aided Engineering
Computer Aided Design
Process Parameters
Optimization
