| 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.
|
