method for producing a sealed threaded tubular connection, and, threaded tubular connection

摘要

"METHOD FOR PRODUCING A SEALED TUBULAR TUBULAR CONNECTION, AND THREADED TUBULAR CONNECTION". To produce a sealing contact between male and female threaded elements (1, 2), a contact zone (20) located between male and female threaded portions (3a, 4a, 3b, 4b) separated from each other in axial direction is provided. . The male and female members have respectively cylindrical portions (21, 22) extending over the entire length of the contact zone (20). After expansion a sealing contact is established between said surfaces in two annular areas (26, 28) by means of a radial interference fit.