The Paton Welding Journal, 2011, #8, 22-26 pages
ADMISSIBLE PRESSURE FOR FILLER OF SEALED SLEEVES USED TO REPAIR MAIN PIPELINES
V.I. MAKHNENKO, E.A. VELIKOIVANENKO, A.S. MILENIN, O.I. OLEJNIK, G.F. ROZYNKA and N.I. PIVTORAK
E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
Main variants of strengthening of thinning of pipeline walls by installing a sealed sleeve are considered. It is shown that the variant of the repair technology involving a sleeve structure with a liquid agent filling the gap between the pipe walls and sleeve requires a detailed substantiation, allowing for properties of the filler during polymerisation, as well as corresponding estimation of the load-carrying capacity of the welds.
repair of active pipelines, sealed sleeves, slot welds, volumetric changes during polymerisation
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