A106B seamless pipe split threaded connecting rod is divided into coupling threading inspection and pipe threading inspection.


1.A106B US Standard Seamless Tube Joint Thread Inspection
After the connection line is processed, the parameters of inner taper, inner pitch, thread height and concentricity should be checked, and the seal gauge and comprehensive parameters should be checked with thread plug gauge and incomplete shape. Single plug. In addition, the threaded surfaces need to be manually inspected according to API standards.


2.A106B US Standard Seamless Tube Thread Detection
After the pipe body and wire, the external taper, the external pitch and the thread height should be checked. Thread angle microscopy should be used to check thread angle. Thread ring gauge and smooth ring gauge are used to check tight distance and comprehensive parameters. In addition, threaded surfaces must be inspected in accordance with API standards. After tightening the machine, check the threaded casing shaft ring with plug gauge and partial plug. Before putting the package into the memory, the end of the coupling on the checking table is equipped with thread plug gauge and incomplete check single plug gauge.  Inspection with thread ring gauge and gloss gauge for external thread buckle. In the actual inspection work, the tight distance value is a comprehensive parameter. After single parameter checking, close distance may pass. When the tight distance is unqualified, the unqualified single parameter should be found first, and then the reason for the unqualified parameter should be solved.