METHOD FOR MEASURING THREADED ELEMENT AT TUBE END

摘要

The present invention provides a method for automatically measuring a thread element at an end portion of a pipe or tube P after thread processing, on a thread processing line 100 in which thread processing is performed on the end portion of each pipe or tube P which is successively conveyed, comprising: a cleaning step of cleaning the end portion of the pipe or tube by a thread cleaning apparatus 30 after the thread processing; a drying step of drying the end portion of the pipe or tube P cleaned in the cleaning step by a thread drying apparatus 40; and a measuring step of measuring the thread element at the end portion of the pipe or tube P by an automatic thread element measurement 50 after drying, wherein the end portion of the pipe or tube is put under a clean atmosphere at least in the measuring step.