铜及铜合金拉伸试验标准对比及探讨  

Comparison and Discussion on the Tensile Test Standards for Copper and Copper Alloys

作　　者：刘志英 王磊 章新亮 李明茂[2] LIU Zhiying;WANG Lei;ZHANG Xinliang;LI Mingmao(Jiangxi Province Centre for Quality Supervision and Test of Copper and Copper Products,Yingtan 335000,China;Jiangxi Advanced Copper Industry Research Institute,Jiangxi University of Science and Technology,Yingtan 335000,China)

机构地区：[1]江西省铜及铜产品质量监督检验中心,鹰潭335000 [2]江西理工大学江西先进铜产业研究院,鹰潭335000

出　　处：《理化检验（物理分册）》2020年第12期15-21,共7页Physical Testing and Chemical Analysis(Part A:Physical Testing)

基　　金：江西省质检局科技项目(GZJKE201819);江西省重点科技项目(20181BCB19003)。

摘　　要：对比了GB/T 34505-2017,GB/T228.1-2010及GB/T4909.3-2009等铜及铜产品拉伸试验标准在适用范围、试样、试验方法等方面的要求,探讨了不同因素对拉伸试验结果的影响,有利于试验人员准确解读与应用相关标准。对GB/T228.1-2010在比例试样原始标距最小长度、非比例试样的平行长度等方面提出了修改建议;对GB/T 34505-2017试样打磨要求、平行长度最大值、试样平行部分可向中心部分缩减等方面提出了修改建议;并建议不同拉伸标准对相同生产工艺和牌号的铜产品,采用相同的量化试验参数,以提高试验结果的复现性和可比性。The requirements of GB/T 34505-2017,GB/T228.1-2010 andGB/T 4909.3-2009 and other copper and copper product tensile test standards were compared in terms of scope,sample,test method and other relevant provisions.The influence of different factors on the tensile test results was discussed,which was helpful for the testers to accurately interpret and apply relevant standards.Recommendations for modification of GB/T228.1-2010 in terms of the minimum length of the original gauge length of the proportional sample and the parallel length of the non-proportional sample are proposed.Recommendations for modification of GB/T 34505-2017 in terms of sample grinding requirements,maximum parallel length,and the parallel part of the sample can be reduced to the central part are proposed.It was recommended that different tensile standards use the same quantitative test parameters for the same production process and brand of copper products,so as to improved the reproducibility and comparability of the test results.

关 键 词：铜及铜合金 拉伸试验标准 标准修订 原始标距 平行长度 

分 类 号：TG115.5[金属学及工艺—物理冶金]