轨距挡板结构优化和微发泡制品的研究  

Structural optimization of gauge apron and investigation on microfoam products

作　　者：颜湘[1] 邓娇[1] 刘韦 YAN Xiang;DENG Jiao;LIU Wei(Zhuzhou Times New Material Technology Co,Ltd,Zhuzhou 412000,China)

机构地区：[1]株洲时代新材料科技股份有限公司,湖南株洲412000

出　　处：《中国塑料》2025年第4期59-63,共5页China Plastics

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。The WJ-8 type fastening system is mainly used for high-speed railway tracks,and the gauge baffle is an impor-tant component of the WJ-8 type fastening system.This gauge baffle plays an important role in transmitting loads,main-taining 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 require-ments.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.

关 键 词：轨距挡板 绝缘 微发泡 

分 类 号：TQ320.72[化学工程—合成树脂塑料工业]