Procedure and centering and welding machine of two-tube extreme parts intended to be united by welding (Machine-translation by Google Translate, not legally binding)

摘要

Procedure and machine for centering and welding the end parts of two tubes (19, 20, 111, 112) intended to be joined by welding, consisting of the procedure to be practiced, respectively on the external part of each of the two ends welding, two bevels of revolution (17,18, 103, 104), in arranging the two tubes end to end in a substantially coaxial position in an apparatus comprising support means (35 to 38) and axial retention means (33, 34) so that the union of the bevels constitutes a groove (65, 105), and then subjecting the bottom of said groove to the action of at least two centering rollers 13, 15, 111 to 118) arranged in the plane of union and having an active profile surface corresponding to that of the bottom of the throat, while pressing means (151) are arranged so that the narrow application of the rollers is made in contact with the latter. (Machine-translation by Google Translate, not legally binding)