FIELD: mechanics.
SUBSTANCE: steel pipe threaded joint represents a threaded engagement of the taper element furnished with a taper outer thread, a metal sealing section and a shoulder section transmitting the rotary motion with a mouth element furnished with a taper inner thread, a metal sealing section and a shoulder section transmitting the rotary motion matching the like elements on the taper element. The thrust thread having the contact on the loaded surfaces of the thread profile, gaps on the thread apex surface and the thread profile mounting surfaces is integrated in one joint with the rigid thread having the contact on the loaded working surfaces and on the thread profile mounting surfaces, and furnished with the gaps on the thread vee and on the thread profile apex surface.
EFFECT: higher reliability of pipe joint.
14 cl, 12 dwg
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