A BETTER WAY TO WELD UNDER WATER

Conventional practice in which the diver-welder keeps the welding rod buried in the puddle of metal as he drags it along the path of the weld produces a highly brittle weld. Can Dive, Inc. has experimented with a modification of the familiar up-hill or up-hand technique used in vertical surface welding. The new technique is called overhand welding. After two or three weaves, the rod is drawn away momentarily without breaking the arc, minimizing the amount of metal deposited. This enables the diver to see by the light of the arc, and he can gage by the diminishing brightness of the deposited puddle when to return to the weld for two more weaves. If the rod were not drawn away from the puddle, the molten steel would build up and spill downward. Characteristic of this weld is a heavy, coarse weave with extremely deep penetration and excellent buildup qualities. It is the type of weld preferred by pressure vessel and pipeline welders.

• Corporate Authors:

  Gulf Publishing Company

  Box 2608
  Houston, TX  United States  77001
• Publication Date: 1971-2

Media Info

• Pagination: p. 31
• Serial:
  • Ocean Industry
  • Volume: 6
  • Issue Number: 2
  • Publisher: Gulf Publishing Company

Subject/Index Terms

• TRT Terms: Construction; Pipe; Pipe laying; Pipelines; Structural design; Weldments
• Old TRIS Terms: Pipeline construction; Piping arrangement; Welded piping
• Subject Areas: Construction; Marine Transportation; Pipelines; Terminals and Facilities;

Filing Info

• Accession Number: 00056279
• Record Type: Publication
• Source Agency: American Petroleum Institute
• Files: TRIS
• Created Date: Jul 15 1974 12:00AM