Fluxes

Fluxes are crucial in various metalworking processes, such as welding, soldering and hot-dip galvanizing. These substances play an essential role in the preparation of metal surfaces to achieve optimal results in terms of adhesion and joining properties.

In welding and soldering, fluxes are used to remove the oxide layer from metal surfaces. This oxide layer can form during storage or through contact with air and impairs the ability of the welding material or solder to react with the metal. Fluxes contain chemical compounds that dissolve the oxide layer and protect the metal surface from re-oxidation, allowing for better wetting and bonding.

In hot-dip galvanizing, flux is also used to prepare the metal surface for the subsequent zinc coating. The flux helps to remove impurities and create a clean, metallurgically active surface to which the zinc coating can adhere.

The selection of the appropriate flux depends on the specific requirements of the process and the materials to be processed. Carefully selected fluxes help to improve the quality of metallurgical joints by enabling efficient cleaning and surface preparation.

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This definition is taken from the surface technology encyclopedia from Surface Technology Online. You can find many more technical terms from the surface technology industry in our lexicon overview.

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