Способ повышени стойкости труб против коррозионномеханического разрушени

摘要

FIELD: production of pipes resistant to action of attacks of different corrosion factors and mechanical destruction. SUBSTANCE: the invention presents a method allowing to increase resistance of pipes against corrosion and mechanical attacks and is dealt with production and utilization of such pipes in the systems exposed to action of corrosion and mechanical effects. The technical result is achieved by formation on the pipes surfaces of residual squeezing voltages increasing the pipes resistance against corrosion-mechanical shattering. The purpose is achieved by heating of pipes with the joule heat and with simultaneous cooling their surfaces by a cooling agent. After refrigeration and alignments of temperatures along thickness of walls, the residual stresses of squeezing are formed on the pipes surfaces, and in the middle layers of the pipes walls - the residual tensile stresses. As a result resistance of the pipes surfaces against corrosion-mechanical shattering is increased. EFFECT: the invention allows to increase the pipes resistance against corrosion-mechanical shattering. 2 ex