BASE BODY OF TIP NOZZLE FOR GAS PRESSURE WELDING, PARTS OF TIP NOZZLE FOR GAS PRESSURE WELDING USING THE SAME, AND BURNER FOR GAS PRESSURE WELDING USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a base body of a tip nozzle for gas pressure welding, parts of the tip nozzle for gas pressure welding, and a burner for gas pressure welding, with which a butted pressure welding zone of steel reinforcing bars to be pressure-welded in particular and a specified zone including the vicinity of the weld zone are surely heated.;SOLUTION: The base body 2 of a tip nozzle for gas pressure welding has a connection part 3 of a plane form composing a part of the form enclosing a heated space 8 located at a specified distance apart from the heated space 8, a connection part 3 is provided at the base end side so that a gas supply pipe 9 is connected, and tip nozzle block parts 4,4,... of the tip nozzle directed to the heated space 8 from each of the tip part side, the base part side, and the specified plural numbers of midway positions are integrally and projectingly formed on the main body of a gas supply pipe formed as a groove which is communicated from the base end side through the tip end side leaving only the backside open.;COPYRIGHT: (C)2002,JPO