摘要
根据汽车热交换系统斜向管口气室模具的设计特点和生产要求,提出了更详细的聚酰胺66/30%玻璃纤维(PA66/30%GF)塑件成型工艺方案,包括塑件的特征工艺分析、结构设计、工作原理、产品预变形技术等。主要研究了斜向管口气室模具3次滑块机构和产品预变形的关键技术,完成了塑件成型工艺的结构设计和应用。通过对管口气室预变形的反复验证,设计出管口气室最佳的产品数学模型,开发出直接可以满足生产装配的管口气室模具。结果表明,通过3次滑块结构设计后,该模具空间更加紧凑,塑件成型缺陷较小,生产效率得到大幅提高且运行稳定。由于该产品使用了PA66/30%GF的开模设计方案,由原来的金属制件转变成塑胶件,大幅降低了材料成本,实现汽车配件轻量化设计,降低了汽车整车质量,提高燃油经济性。
According to the design characteristics and production requirements of the mold for an oblique orifice air cham-ber in the automotive heat exchange system.A more detailed molding process scheme was proposed for the PA66/30%GF plastic parts,which included the characteristic process analysis of plastic parts,structural design,working principle,and product pre-variation technology.The core technologies for the three-time slider mechanism of the inclined orifice air chamber mold and product pre-variation were intensively studied,and the structural design and application investigation of the molding process for the plastic parts were conducted.Through verifying the preform of the orifice chamber repeat-edly,the optimal mathematical model of the orifice chamber was designed,and an orifice chamber mold was developed to directly meet the requirement of production assembly.The research results indicated that the developed mold was more compact with fewer molding defects,which improved productivity and stable operation significantly through three slider designs.Owing to the use of an open mold design solution for the PA66/30%GF parts,the product was convert-ed from a metal part to a plastic part.This significantly reduced the material costs and obtained a lightweight design for automotive parts.As a result,the overall weight of the vehicle was reduced and the fuel economy was improved.
作者
叶卫文
陈镇森
姜炳春
吴光明
YE Weiwen;CHEN Zhensen;JIANG Bingchun;WU Guangming(College of Mechanical and Electrical Engineering,Guangdong University of Science and Technology,Dongguan 523083,China;Daxing Plastic Mould Co,Ltd,Dongguan 523000,China;Dongguan Technician College,Dongguan 523000,China)
出处
《中国塑料》
CAS
CSCD
北大核心
2023年第9期102-108,共7页
China Plastics
基金
项目编号(20221800500722)。
关键词
成型工艺
3次滑块机构
工作原理
产品预变形
forming process
triple slider mechanism
working principle
product pre-variation
