GB/T 230.1—2018中主要技术变更的对比分析

Comparison and analysis of major technical changes in GB/T 230.1-2018

对金属材料洛氏硬度试验国家标准GB/T 230.1—2009版与2018版旧新两个版本进行对比分析,得出了2018版国家标准主要的技术性变更。与2009版标准相比,2018版国家标准对试验原理重新进行了描述,修改了常用洛氏硬度标尺适用范围,修改了初试验力和主试验力保持时间,对日常检查程序进行了细化。通过新旧版本标准的对比分析,可以帮助检测人员对新版洛氏硬度试验国家标准的理解和运用,提高检测结果的有效性。

By comparing and analyzing the new and old versions(2009 version and 2018 version) of the national standard GB/T 230.1 for Rockwell hardness test of metal materials,the main technical changes of the 2018 version of the national standard are obtained.Compared with the old version of the standard,the 2018 version of the national standard re described the test principle,modified the scope of application of the common Rockwell hardness scale,modified the holding time of the initial test force and the main test force,and refined the daily inspection procedures.The comparison and analysis between the new and old versions of standards can help testers understand and apply the new version of the national standard for Rockwell hardness test,and improve the effectiveness of the test results.