Galvanizing a welded metal construction using the hot method requires a clean welding area, since this parameter affects the appearance and quality of the final result.
When using a coated electrode for welding, all slag obtained during the production process must be removed before galvanizing, otherwise the coating will not reliably adhere to the surface at the welding sites, which will lead to the appearance of bare spots on the coating.
The use of chemical detergents, which are used in the process of galvanizing, is not capable of removing slag from welding, and therefore it is necessary to apply grinding using abrasive jet or fire cleaning, brushes with wire bristles.
Slag formed during welding melts under the influence of welding wire and remains on the weld seams. The seams that perform the bare wire, do not lead to the appearance of slag, and therefore do not require grinding.
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