Metal | Oxygen monitoring of forming gases during welding

Restricting the presence of oxygen is crucial to attain optimal welds with satisfactory mechanical strength and chemical resistance. With the Oxygen Monitor for Gas Purity, Anton Paar has the solution on hand for a fully automated process, combining best welding quality with minimum process time and gas consumption.

Welding processes are integral to joining materials and are considered among the most significant methods in metal joining. While there exists a wide array of welding processes, they all share a common characteristic: their sensitivity to environmental factors. Oxygen, in particular, has a detrimental impact on welds due to its tendency to react with the hot metal, leading to oxidation. This results in a compromise of the mechanical properties and chemical resistance of the weld. Therefore, to ensure high-quality welding, it becomes essential to restrict the oxygen content at the weld.
In gas metal arc welding, the restriction of oxygen is accomplished through the displacement of oxygen using shielding and forming gases. While shielding gases are typically not controlled, monitoring the forming gas becomes crucial, particularly for welding hollow parts. In such cases, it is essential to fill the hollow area with forming gas prior to the welding process.
Anton Paar’s Oxygen Monitor for Gas Purity is the ideal choice for a fully automated welding process, resulting in highest welding quality

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