.Water works pipe rebirth epoxy resin lining before priming method of construction and composition of epoxy resin paint

摘要

PURPOSE: A method for regenerating an aged water supply pipe is provided to preserve the permanent endurance of epoxy lining as a lining coating increases an adhesive force with an aged pipe cast iron surface to complete the surface thereof. CONSTITUTION: The method comprises: a first step of setting a working section and a working position by surveying an aged water supply pipe; a second step of suspending a water supply of a water supply pipe line and cutting a water supply pipe and flowing water by a temporary valve; a third step of spraying a high pressure water and removing scales; a fourth step of removing water in the pipe and drying the pipe by a hot blow generation combustion device; a fifth step of impregnating unremoved scales, suppressing clattering and increasing an adhesive force; a sixth step of facilitating hardening of a primer; a seventh step of drying the primer by coating the same once; and an eighth step of washing the inside of the pipe with water, connecting a connecting region corresponding to the pipe diameter of the water supply pipe line and flowing water.