The welding process creats a link between metals by inducting heat and/or pressure, with or without the use of a supplementary metal. In order to obtain satisfactory resistance the welded area has to be protected from oxidation and metals have to be slag-free.
Filtration in this application has to evaluate the following specific parameters:
- air charged with greasy/oily fumes,steam and/or toxic gases at high temperature
- presence of chemical composites coming from residues of degreasing or lubrificant liquids, as well as fused coatings
- presence of contaminants that are irritating, toxic or cancerogenous
- high risk of fire/explosion (due to oliy/greasy residues and sparks at high temperature)