摘要
酚醛玻璃纤维塑料件常采用单腔压缩模压成型,存在人工搬抬模具、操作时间长、班产量低,成型温度场受人工装合模具快慢影响较大,造成质量不稳定等问题。介绍了酚醛玻璃纤维塑料承压件的成型原理、多腔压缩模具设计方法,指出了该件属于形位公差和尺寸公差要求精度较高及如何从工艺上进行保证,阐述了压缩模塑成型工艺参数对塑件质量、力学性能及生产周期的影响,通过零件结构特点,分析了零件力学性能低、尺寸一致性差的形成原因,并提出了相应的解决措施,制定了模压成形工艺,介绍了模具加热采用电磁感应+电阻复合加热装置的结构。经批量生产验证,方法可行,对同类件成型具有一定参考价值。
Phenolic glass fiber plastic parts were typically formed by using single-cavity compression molding,which presented issues such as manual mold handling,prolonged operation time,low per-shift production output,and significant quality instability caused by inconsistent temperature fields due to variable manual mold assembly speeds.It was introduced that the molding principles of phenolic glass fiber plastic pressure-bearing components and the design methodology for multicavity compression molds.It addressed the high precision requirements for geometric and dimensional tolerances of these components,along with corresponding process assurance measures.We presented how compression molding parameters influenced part quality,mechanical properties,and production cycle.Through analysis of component structural characteristics,it was identified that the root causes of inferior mechanical performance and dimensional inconsistency,with corresponding solutions being proposed.A compression molding process was formulated,and we presented an innovative electromagnetic induction+resistance composite heating structure for mold heating.Batch production verification confirmed the feasibility of this approach,and demonstrated significant reference value for molding similar components.
作者
闫晓东
韩立立
孙利华
张卫
刘蓉
万利平
YAN Xiaodong;HAN Lili;SUN Lihua;ZHANG Wei;LIU Rong;WAN Liping(Huaihai Industry Group Co.,Ltd.,Changzhi 046012,China;Changzhi Military Rep.Office Under Army Equipment Dept.,Changzhi 046012,China)
出处
《新技术新工艺》
2025年第7期31-37,共7页
New Technology & New Process
关键词
温度场
承压件
酚醛玻璃纤维塑料
压缩模具
模压成型
电磁感应+电阻复合加热装置
temperature fields
pressure retaining parts
phenolic glass fiber plastic
compression molds
molding
electromagnetic induction+resistance composite heating equipment
