| 摘要 |
Provided is a fixing device for tack welding of an extension pipe, which comprises: a tubular frame into which one side of an extension pipe can be inserted; a plurality of support members wherein the tubular frame is placed between two rotating rollers installed in an upper portion; and at least three control means coupled to the tubular frame to move in a radial direction of the tubular frame. Therefore, one end portion of a main pipe and one end portion of the extension pipe are in contact with each other to be easily aligned to be tack welded, thereby enabling tack welding to be quickly performed and process control to be easy. |
