关于冷压接线端子拉力试验标准优化的建议  

Suggestions on Optimizing the Tensile Test Standard for Cold-pressed Terminals

作　　者：杨军 YANG Jun(Process Technology Department,CRRC SRI Chongqing Science&Technology Co.,Ltd.,Chongqing 401133,China)

机构地区：[1]重庆中车四方所科技有限公司工艺技术部,重庆401133

出　　处：《铁道车辆》2024年第1期132-137,共6页Rolling Stock

摘　　要：目前铁路行业中冷压接线端子拉力试验标准众多,但普遍存在内容不全面、试验方法不一致、拉力值标准不统一等现象,具体表现为:同一标准拉力值适用于所有类型端子,同一端子在不同的标准中有不同的试验方法,在相同的试验方法下,不同的标准对同一端子的拉力值要求也不一致,这造成技术人员在实际应用中经常感到困惑,不知如何选择,同时,相应的拉力试验标准也未能真正体现出标准的意义。针对这一问题,文章首先结合行业常用标准及现场实际应用情况对铁路行业常用接线端子进行了分类;其次分析对比了常用标准适用范围,明确各类端子与各标准的适配性;然后在适配的前提下对存在不同试验方法的同类端子提出了一种新的拉力试验方法以兼容不同标准;接着对相同拉力试验方法下的不同标准拉力值进行对比分析,按最严格的原则整理出统一的拉力值标准;最后对拉力试验方法和拉力值标准进行汇总,形成常用端子拉力试验标准优化建议以供参考。There’re now numerous tensile test standards for cold-pressed terminals in the railway industry,but the phenomena including incomplete content,inconsistent test methods and non-unified standards of tensile force value exist widely and are concretely manifested by the following:the same standard of tensile force value applicable to all types of terminals,different test methods for the same terminal in different standards and the inconsistent requirements for the tensile force value of the same terminal with the same test method in different standards,which often puzzles the technicians in choice during the actual application.Meanwhile,the corresponding tensile test standards can’t really reflect the significance of the standards.To solve this problem,this article firstly combines the common standards of the industry and the practical applications on site to classify the terminals frequently used in the railway industry;secondly analyzes and compares the scopes of application of the common standards and clarifies the adaptability between different kinds of terminals and different standards;and in the premise of adaptability,proposes a new tensile test method for the same type of terminals with different test methods to make different standards compatible;then compares and analyzes the tensile force values of different standards with the same tensile test method and works out the unified standard of tensile force value in the strictest principle;finally summarizes the tensile test method and the standard of tensile force value to form a proposal and reference for optimizing the tensile test standard of common terminals.

关 键 词：冷压接线端子 拉力试验 端子压接 拉脱力 保持力 

分 类 号：TM246[一般工业技术—材料科学与工程]