HIGH-TORQUE THREADED JOINT WITH LUBRICANT-FREE COAT Russian patent published in 2012 - IPC F16L15/06

Abstract RU 2444668 C2

FIELD: machine building.

SUBSTANCE: proposed threaded joint comprises external element and internal element with mating threads. Threaded joint for butt contact uses trapezoidal profile of thread with small positive angle of loaded side and very small positive angle of mounting face. Thread is coated by lubricant-free solid material.

EFFECT: higher reliability of joint.

10 cl, 6 dwg, 2 tbl

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RU 2 444 668 C2

Authors

Karkan'O Gabriehl' E.

Kiroga Fransisko Al'Fredo

Dates

2012-03-10—Published

2008-03-27—Filed