Threaded connection with perturbed flanks

Details Threaded connection with perturbed flanks Threaded connection with perturbed flanks

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 15/06 (2006.01)

Patent

CA 2669967

A threaded connection including a pin member and a box member, and methods for manufacturing and forming said threaded connection. The pin member has a pin thread with a pin thread crest, a pin thread root, a pin load flank, and a pin stab flank. The box member has a box thread with a box thread crest, a box thread root, a box load flank, and a box stab flank. At least one of the pin thread crest, the pin load flank, the pin stab flank, the box thread crest, the box load flank, and the box stab flank has at least one perturbation formed thereon. Upon a selected make-up of the pin member with the box member, a reduced clearance gap exists between the pin thread and the box thread at the at least one perturbation.

L'invention concerne un raccord fileté comprenant un élément de broche et un élément femelle et des procédés de fabrication et de formation dudit raccord fileté. L'élément mâle possède un filet mâle pourvu d'un sommet de filet mâle, d'un fond de filet mâle, d'un flanc porteur de filet et d'un flanc d'engagement mâle L'élément femelle possède un filet femelle pourvu d'un sommet de filet femelle, d'un fond de filet femelle, d'un flanc porteur femelle et d'un flanc d'engagement femelle. Le sommet de filet mâle ou le flanc porteur mâle ou le flanc d'engagement mâle ou le sommet de filet femelle ou le flanc porteur femelle ou le flanc d'engagement femelle possède au moins une perturbation formée sur le dessus. Lors d'un assemblage sélectionné de l'élément mâle avec l'élément femelle, un espace d'entrefer réduit existe entre le filet mâle et le filet femelle au niveau de cette perturbation.

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