FIELD: machine building.
SUBSTANCE: invention relates to threaded pipe joints. Method of producing surface-finished threaded joint for oil downhole pipe comprises processing the threaded joint surface by injection and spraying of particles with HRC making, at least, 50 and particle diametre varying from of 30 to 300 mcm, on the joint surface being processed by air pressure of 0.3 to 0.5 MPa.
EFFECT: sufficient fatigue crack resistance and rupture strength of threaded joint.
9 cl, 8 dwg
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