China Plastics ›› 2024, Vol. 38 ›› Issue (12): 143-147.DOI: 10.19491/j.issn.1001-9278.2024.12.022

• Machinery and Mould • Previous Articles     Next Articles

Design of large and thin⁃walled injection mold with hot runner for left⁃front door panel of vehicles

ZHANG Weihe(), FENG Jing, ZHAO Liping, XU Yonglin, YAN Lijing, FEI Qiang, TAO Yongjie, CHEN Zhuohang   

  1. GuangDong University of Science & Technology,Dongguan 523000,China
  • Received:2024-02-28 Online:2024-12-26 Published:2024-12-25

Abstract:

In this study, a large injection mold with a sequential valve hot runner was designed for the left⁃front door panel of a vehicle, and the forming defects such as poor filling and fusion marks in the horn mesh were effectively eliminated by using the formed parts made of a type of powder metallurgy breathable steel. The problem in the inclined inner reverse buckle demolding was effectively solved by using an inclined guide groove. The difficulty in filling large mold cavities was effectively addressed by using a sequential valve hot runner control technology. The injection cycle was shortened by about 8 %, and the dimensional accuracy reached the MT3 level (GB/T 14486—2008) by using a fast and balanced temperature control system.

Key words: left?front hinten of car, large injection mould, sequential valve gate technology, the core pulling mechanism

CLC Number: