摘要
为提高空调面板注射成型时熔接痕的力学性能及表观性能,针对提出的模具差温控制策略,对空调面板的浇口进行了优化设计。利用CAE分析软件Moldflow,对不同浇口位置及形式的空调面板注射成型过程进行了模拟,分析了型芯和型腔进行差温控制时熔体的充模流动状态,研究了充填时间、熔体温度及熔体流动前沿温度等对熔接痕力学性能及表观性能的影响,指导了最佳浇口位置及形式的选择。研究结果表明,在空调面板液晶框处采用同侧向下的两个扇形浇口进胶,且型腔比型芯温度高的模具差温控制策略,可以显著提高熔接痕的结合强度及塑件的外表面质量。
To improve the strength property and apparent performance of weld line of air conditioning panel after injection molding, the optimization design of gate of air conditioning panel was conducted based on different mold temperature strategy. Different gate locations and styles of air conditioning panel were simulated by using CAE software of Moldflow. The fill status of melt was analyzed when using different temperature of core and cavity. The impact of filling time, melt temperature, and melt temperature at flow front on the strength property and apparent performance of weld line was researched. The result indicated that, the strength property and apparent performance of weld line of air conditioning panel can be markedly improved by using two downward fan gates around the frame.
出处
《塑料工业》
CAS
CSCD
北大核心
2011年第9期35-38,48,共5页
China Plastics Industry
基金
重庆市科技攻关重点项目:CSTC
2009AA3012-1
关键词
熔接痕
差温控制
浇口设计
空调面板
Weld Line
Different Mold Temperature Strategy
Gate Design
Air Conditioning Panel
