ANTI-RUST STRUCTURE OF METALLIC PIPE AND MANUFACTURING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide an anti-rust structure of a metallic pipe which can provide sufficient rust preventive performance at a low cost.SOLUTION: An anti-rust structure of a metallic pip includes: a first connection 6 provided at one end 5a of a metallic tube 5 and at which a flare joint is used; a second connection 7 provided at the other end 5b in the longitudinal direction of the tube 5 and having an eye joint which is different connection structure from the first connection 6; a plating layer 81 covering a surface of the tube 5 excluding the one end 5a of the tube 5 and surfaces of the first connection 6 and the second connection 7; and an anti-rust coating layer formed by covering a surface in the axial dimension of a fastening nut 62 at the one end 5a of the tube 5 with fluorine resin as rust preventive material.