LINING OF INNER SURFACE OF PIPE AND HOT AIR DISCHARGE MACHINE USED THEREIN

摘要

PURPOSE:To provide a lining method good in heat efficiency capable of uniformly curing the whole of the tube inserted in a pipe in a reversed state by hot air and a hot air discharge machine adapted to this method. CONSTITUTION:A hot air discharge machine 9 having such a structure that a discharge cylinder 9a having blow-off ports 9c provided to the periphery thereof is airtightly connected by a freely bendable connection cylinder 9b and a hot air supply hose 17 of which both ends are closed by a closure plate is connected to the discharge cylinder 9a is used to be introduced into the uncured thermosetting resin impregnated tube 3 inserted in a pipe 13 in a reversed state and the hot air supplied through the hot air supply hose 17 is sprayed on the tube 3 from the blow-off ports 9c while the hot air discharge machine 9 is moved to uniformly cure the tube 3.