汽车热交换系统直管口双缩柯水室模具设计
Design of die for double shrinkage water chamber of straight pipe in automotive heat-exchange system
叶卫文 1陈镇森 1姜炳春 2吴光明3
作者信息
- 1. 广东科技学院机电工程学院,广东 东莞 523083
- 2. 达兴塑胶模具有限公司,广东 东莞 523000
- 3. 东莞技师学院,广东 东莞 523000
- 折叠
摘要
根据热交换系统直管口双缩柯水室的设计要求,提出一种详细的工艺方案,采用PA66/30%GF材料成型.方案中包括塑件特性分析、结构设计、工作原理以及产品预变形技术等内容.重点研究了直管口双缩柯水室设计和产品预变形的关键技术.通过多次验证,设计出最佳的管口水室产品数学模型,同时开发出相应的注塑模具.结果表明,双缩柯滑块结构设计在模具空间利用和塑件成型质量方面都取得了显著的改善;该设计使得模具空间更加紧凑,提高了生产效率;同时,优化的结构使得塑件成型缺陷较小,确保产品质量的稳定性;通过采用PA66/30%GF材料和开模设计方案,将原来的金属件替换为塑料件,大幅降低了加工和材料成本;这一轻量化设计不仅减轻了整车质量,还提高了汽车的续航能力.本研究为相关领域的技术发展和工程实践提供了有效的应用价值.
Abstract
According to the design requirements of a straight pipe mouth double shrink water chamber in the heat-ex-change system,a detailed process plan was proposed to form the part using a thermoplastic composite based on the PA66 matrix and 30 wt% glass fiber(GF).This plan included the plastic component characteristic analysis,structural design,working principle,and pre-deformation technology of products.The key technologies for the design of the water cham-ber and the pre-deformation of products were studied.Through multiple verifications,the optimal mathematical model for the nozzle water chamber product was designed,and corresponding injection molds were developed.The research re-sults indicated that the structural design of the double shrink Ke slider achieved a significant improvement in the mold space utilization and plastic forming quality.This design makes the mold space more compact and improves the produc-tion efficiency.Meanwhile,the optimized structure reduces the molding defects of the plastic parts,ensuring the stability of product quality.By using the PA66/30 wt% GF composite and mold design scheme,the original metal parts were re-placed by the plastic parts,which greatly reduced the processing and material costs.Such a lightweight design not only reduces the weight of the entire vehicle,but also improves the vehicle's endurance.This study provides an effective ap-proach for the technological development and engineering practice in related fields.
关键词
成型工艺/双缩柯滑块机构/结构原理/预变形设计Key words
molding process/double reduction ke slider mechanism/structural principle/pre deformation design引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据