55°密封管螺纹量规技术体系解析及标准应用

Analysis and Standard Application of 55° Sealed Pipe Thread Gauge Technical System

目前有两套55°密封管螺纹量规技术体系,分别为欧洲体系和亚洲体系。本文分析了两套量规技术体系的形成原因及两套体系的技术差异,并给出在实际工作中正确选取量规的方法。

There are two sets of 55°sealed pipe thread gauge technical systems in the world,which respectively are the European system and the Asian system.The reasons for the formation of two sets of gauge technical systems and the technical differences between the two systems are analyzed,and the correct method of selecting gauges in practical work are given.