MANUFACTURING METHOD OF A COUPLER CONNECTING REINFORCEMENT PIPES, CAPABLE OF PRODUCTION COST REDUCTION AND PRODUCTIVITY INCREASE

摘要

PURPOSE: A manufacturing method of a coupler connecting reinforcement pipes, capable of production cost reduction and productivity increase, are provided to prevent the separation of the pipes to outside by increasing tensile force.;CONSTITUTION: A manufacturing method of a coupler connecting reinforcement pipes is as follows. A steel plate(100) is cut in fixed length so that a reinforcement pipe(300) and a male screw(310) of the reinforcement pipe. A female screw(110) is combined with the male screw on the surface of the steel plate. The steel plate is rolled. Both end of the steel plate is closely adhered and welded.;COPYRIGHT KIPO 2011