Comparison on Alignment Test Methods of Testing Machine between ASTM and Chinese Calibration Guideline
摘 要
采用美国标准(ASTM)ASTM E1012-2014和中国检定规程JJG 475-2008,JJG 556-2011对试验机同轴度进行测试,并对测试方法和测试结果进行了对比。结果表明:ASTM和中国检定规程在定级标准、装置(试样棒)、操作方法及计量溯源等方面都有所不同。ASTM采用应变片试样棒,中国检定规程采用双引伸计法。ASTM对于同轴度的检验方法更加全面完整,但缺乏完善的计量溯源方式。中国检定规程易于操作,同时能保障计量溯源,但不能同时保证试棒在全方位反映出试验机的同轴度。
Abstract
The alignment of testing machine was tested by using ASTM E1012-2014 and China calibration guideline JJG 475-2008 and JJG 556-2011, and the test methods and test results were compared. The results show that the ASTM and China calibration guideline were different in grading standard, device (specimen rod), operation method and metrological traceability. The strain gauge specimen rod was used in ASTM, and the double extensometer method was used in Chinese calibration guideline. The alignment test method in ASTM was more comprehensive and complete, but it lacked perfect metrological traceability. China calibration guideline was easy to operate, and can guarantee the metrological traceability, but it can not guarantee that the test rod reflects the alignment of the testing machine in all directions.
中图分类号 TG115 DOI 10.11973/lhjy-wl202106002
所属栏目 专题报道(GB/T 228.1—2010修订建议)
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收稿日期 2021/2/1
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备注姜虹(1988-),女,工程师,主要从事计量检测相关工作
引用该论文: JIANG Hong,SHEN Qi,HUANG Weijun. Comparison on Alignment Test Methods of Testing Machine between ASTM and Chinese Calibration Guideline[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2021, 57(6): 8~10
姜虹,沈琪,黄伟军. 美标和中国检定规程的试验机同轴度测试方法对比[J]. 理化检验-物理分册, 2021, 57(6): 8~10
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参考文献
【1】Anon. Standard Practice for Verification of Testing Frame and Specimen Alignment Under Tensile and Compressive Axial Force Application:ASTM E1012-2014[S].[S.l.]:[s.n.],2014.
【2】Anon.Metallic materials-Verification of the alignment of fatigue testing machines:ISO 23788-2012[S].[S.l.]:[s.n.],2012.
【3】全国钢标准化技术委员会.金属材料试验机加载同轴度的检验:GB/T 34104-2017[S].北京:中国标准出版社,2017.
【4】全国力值硬度计量技术委员会.电子式万能试验机检定规程:JJG 475-2008[S].北京:中国质检出版社,2008.
【2】Anon.Metallic materials-Verification of the alignment of fatigue testing machines:ISO 23788-2012[S].[S.l.]:[s.n.],2012.
【3】全国钢标准化技术委员会.金属材料试验机加载同轴度的检验:GB/T 34104-2017[S].北京:中国标准出版社,2017.
【4】全国力值硬度计量技术委员会.电子式万能试验机检定规程:JJG 475-2008[S].北京:中国质检出版社,2008.
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