焊接接头图纸符号最新国际标准解析

Analysis of latest ISO standard of welded joints symbolic representation on drawings

随着中国焊接制造国际化融合程度越来越高,焊接制造国际合作越来越多,焊接接头图纸符号符合国际规范化标注要求也越来越高。国际标准化组织(ISO)也于2013年和2019年升级了ISO 2553《焊接和相关工艺方法—图纸符号表示—焊接接头》,目前ISO2553:2019第五版作为图纸焊接接头标注的最基本国际标准,清晰的介绍了焊接接头种类、图纸符号种类、焊缝的标注、坡口准备、应用实例。国际标准的推广和应用将大大统一焊接标注准确性,减少标注歧义,搭建起焊接制造的国际合作技术交流基础平台,为焊接行业内的设计、工艺标注和制造生产等环节提供执行及参考依据。

With the increasingly high degree of international integration of welding manufacturing in China,more and more international cooperation in welding manufacturing is achieved,and the drawing symbols of welded joints meet the requirements of international standardization.The international organization for Standardization(ISO)also upgraded ISO 2553“Welding and allied processes—symbolic representation on drawings—welded joints”in 2013 and 2019.At present,the fifth edition of ISO 2553:2019 is the most basic international standard for welded joint symbolic representation on drawings.It clearly introduces the types of welding joints,drawing symbols,weld symbols,groove preparation and application examples.The promotion and application of this international standard will greatly unify the accuracy of welding marking,reduce the ambiguity of marking,and build a basic platform for international cooperation and technical exchange of welding manufacturing,and provide the implementation and reference basis for the design,process,manufacturing and production of welding industry.