AN INVESTIGATION INTO THE LEVELS AND EFFECTS OF TOXIC FUME PRODUCED DURING SEMI-AUTOMATIC FLUX-CORED WELDING IN CONFINED SPACES

The amount of welding fume produced by both semi-automatic flux-cored and manual metal-arc welding processes is measured in the general atmosphere within a drier, and at a position close to the welder's face. The levels of fluoride absorbed by the welders are monitored by pathological determination of the fluoride content in their urine. Removal of welding fume with a portable extractor of the fishtail type and using a vacuum extractor fitted directly on the flux-cored gun are also investigated. The fume measurements show that, when a vacuum extractor was fitted to the flux-cored welding gun, the levels of fume in the welders beathing zone were below the Threshold Limit Values published by HM Factory Inspectorate. When welding by manual metal-arc process the total fume levels in the welder's breathing zone exceeded these Threshold Limit Values.

  • Corporate Authors:

    Welding Institute

    Abingdon Hall
    Cambridge CB1 6AL,   England 
  • Authors:
    • Davies, J W
    • Metcalf, J
  • Publication Date: 1975-4

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00138350
  • Record Type: Publication
  • Source Agency: Institution of Electrical Engineers
  • Files: TRIS
  • Created Date: Aug 11 1976 12:00AM