Factors Affecting the Capture Efficiency of a Fume Extraction Torch for Gas Metal Arc Welding

  title={Factors Affecting the Capture Efficiency of a Fume Extraction Torch for Gas Metal Arc Welding},
  author={Francis Bonthoux},
  booktitle={The Annals of occupational hygiene},
Welding fumes are classified as Group 2B 'possibly carcinogenic' and this prompts to the implementation of local exhaust ventilation (LEV). The fume extraction torch with LEV integrated into the tool is the most attractive solution but its capture efficiency is often disappointing in practice. This study assesses the main parameters affecting fume capture efficiency namely the extraction flow rate, the positioning of the suction openings on the torch, the angle of inclination of the torch to… CONTINUE READING
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