| 摘要 |
A threaded pipe connection is disclosed that includes a box member and a pin member. The box member has two wedge thread steps each with a tapered, internal, generally dovetail-shaped wedge thread having stab flanks, load flanks, roots, and crests. The pin member has two wedge thread steps each with a tapered, external, generally dovetail-shaped wedge thread having stab flanks, load flanks, roots, and crests. The internal thread of the box member increases in width in one direction. The external thread of the pin member increases in width in the other direction so that complementary flanks of the box member thread move into engagement during rotational make-up of the connection. The roots and crests of at least one wedge thread step on the box member are dimensioned to contact complementary roots and crests on the pin member upon final make-up. Also, stab and load flanks of at least one wedge thread step on the box member are dimensioned to contact complementary stab and load flanks on the pin member upon final make-up. |
