MUMBAI, India, June 24 -- Intellectual Property India has published a patent application (202617060350 A) filed by Nichirin Co. , Ltd. on May 12, 2026, for Method For Producing Pipe With Resinous Joint.
Inventors include Nakashima, Kazutoshi; Masuno, Tetsuro; and Maeda, Ryuichi.
The application for the patent was published on June 12, 2026, under issue no. 24/2026.
Abstract: This method for producing a pipe with a resin joint comprises: a pretreatment step for roughening the outer surface of an end portion 11E of a metal pipe 11; a first attachment step for attaching a resin joint 12 to the roughened end portion 11E; a heating step for heating the attachment portion between the resin joint 12 and the metal pipe 11 in a state in which the resin joint 12 is attached to the metal pipe 11; a pressing step for pressing the resin joint 12 from the outside of the resin joint 12 toward the inside of the metal pipe 11; a cooling step for cooling the resin joint 12; and a second attachment step for attaching a reinforcing member 13 to the outer surface of the resin joint 12 after the resin joint 12 has been cooled. The reinforcing member 13 has a lower coefficient of linear expansion than the resin joint 12.
Disclaimer: Curated by HT Syndication.
