中国塑料 ›› 2025, Vol. 39 ›› Issue (4): 59-63.DOI: 10.19491/j.issn.1001-9278.2025.04.011

• 加工与应用 • 上一篇    下一篇

轨距挡板结构优化和微发泡制品的研究

颜湘(), 邓娇, 刘韦   

  1. 株洲时代新材料科技股份有限公司,湖南 株洲 412000
  • 收稿日期:2024-06-17 出版日期:2025-04-26 发布日期:2025-04-23
  • 作者简介:颜湘(1987—),男,工程师,从事轨道交通减振降噪产品设计,625833062@qq.com
  • 基金资助:
    北京工商大学高分子材料无卤阻燃剂工程实验室

Structural optimization of gauge apron and investigation on microfoam products

YAN Xiang(), DENG Jiao, LIU Wei   

  1. Zhuzhou Times New Material Technology Co,Ltd,Zhuzhou 412000,China
  • Received:2024-06-17 Online:2025-04-26 Published:2025-04-23

摘要:

WJ⁃8型扣件系统主要用于高速铁路轨道,其中轨距挡板是WJ⁃8型扣件系统的重要组成部分,该部件主要在系统中起着传递载荷,保持及调整两条钢轨的轨距,同时起一定的绝缘作用。目前,轨距挡板使用普通的注射成型工艺生产,产品容易产生缩孔,并且使用过程中产品弹条扣压处容易压溃。本文主要是对轨距挡板的结构进行了优化,通过选择合适的发泡剂,制成相应产品进行了试验,满足性能要求。解决了轨距挡板产品缩孔和弹条扣压处压馈问题,为其以后在工程上更好的运用提供了重要的参考。

关键词: 轨距挡板, 绝缘, 微发泡

Abstract:

The WJ⁃8 type fastening system is mainly used for high⁃speed railway tracks, and the gauge baffle is an important component of the WJ⁃8 type fastening system. This gauge baffle plays an important role in transmitting loads, maintaining and adjusting the gauge of two rails, and it also has a certain insulation in the fastening system. At present, the gauge baffle is produced using an ordinary injection molding technology, which makes the product prone to shrinkage, and the elastic strip buckle is prone to crushing during use. This article mainly optimized the structure of the gauge baffle and produced the corresponding products by selecting suitable foaming agents for tests to meet the performance requirements. The problems of shrinkage and pressure feedback at the clamping point of the track gauge baffle product was solved. This study provides an important reference for better engineering applications in the future.

Key words: gauge apron, insulation, microfoam

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