FORMING AND WELDING METHOD OF ELECTRIC WELDED STEEL PIPE

• Main Authors: TERASAWA TAKESHI, MIZUTANI WATARU
• Format: Patent
• Language: English
• Published: 08.11.1984
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

PURPOSE:To improve the quality of the weld zone of an electric welded steel pipe in forming and welding said pipe by inserting an insulator into the butt parts of the steel pipe. CONSTITUTION:A wedge-shaped insulator 6 is inserted into the butt parts 3 of a steel pipe and the tip of the insulator 6...