FIELD: machine building.
SUBSTANCE: female element is located on one end of tubular component and includes on its outer surface the device of energy absorption appearing at formation of scratches as a result of action of the body having outer contact to female element and device for retaining scratch formation energy absorption device. Retaining device is intended to prevent falling of the fragments of the above absorption device at expansion of threaded tubular connection. There described is connection by using the above female element and method for determining effectiveness of the scratch formation energy absorption device on female element.
EFFECT: improving tubular threaded connection reliability.
29 cl, 8 dwg
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