A new lightweight torch-mounted fume extraction system is described which is suitable for use with a wide range of semi-automatic torches and consumables. The equipment consists of a portable extraction pump connected through a lightweight hose to interchangeable extraction nozzles which fit on to the gas shroud nozzle of a range of standard welding torches. The various stages in the design and evaluation of prototypes are outlined and factors contributing to optimum performance in practical welding situations are discussed. The effectiveness of the system has been measured both in terms of overall fume removal and the reduction of fume in the welder's breathing zone. Data are given for welding with various torches using solid wires and cored electrodes. In nearly all instances the concentrations of potentially toxic fume constituents were reduced below the Threshold Limit Values.

  • Supplemental Notes:
    • Proceedings of International Conference on Exploiting Welding in Production Technology, London, April 22-24, 1975.
  • Corporate Authors:

    Welding Institute

    Abingdon Hall
    Cambridge CB1 6AL,   England 
  • Authors:
    • Wright, R R
    • Wellard, H J
    • Burrill, E L
  • Publication Date: 1975-4

Media Info

  • Features: References;
  • Pagination: 10 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00152498
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Apr 27 1977 12:00AM