MULTILAYER PIPE AND METHOD FOR MANUFACTURING THE SAME

摘要

PURPOSE: A multilayer pipe and a manufacturing method thereof is provided to enhance a durability and an anti-corrosiveness by forming a synthetic resin at an inner and outer circumference surfaces of a metal pipe simultaneously. CONSTITUTION: A multilayer pipe comprises a porous and cylindrical metal pipe(10) and an inner and an outer synthetic resin layers(21) coated at an inner and outer circumference surfaces of the porous and cylindrical metal pipe(10) simultaneously. The inner and outer synthetic resin layers(20,21) are coupled integrally each other through a plurality of through path holes(11). The inner synthetic resin layer(20) is coated at the inner circumference surface of the porous and cylindrical metal pipe(10), and the outer synthetic resin layer(21) is coated at the outer circumference surface porous and cylindrical metal pipe(10). The through path holes(11) are formed at the metal pipe(10), and a spoke wire(12) is formed between the holes(11).