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shielding gas

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Shielding gas
Shielding gases are inert or semi-inert gases that are commonly used in several welding processes, most notably gas metal arc welding and gas tungsten arc welding (GMAW and GTAW, more popularly known as MIG and TIG, respectively). Their purpose is to protect the weld area from atmospheric gases, such as oxygennitrogen, and water vapour. Depending on the materials being welded, these atmospheric gases can reduce the quality of the weld or make the welding more difficult. Other arc welding processes use other methods of protecting the weld from the atmosphere as well – shielded metal arc welding, for example, uses an electrode covered in a flux that produces carbon dioxide when consumed, a semi-inert gas that is an acceptable shielding gas for welding steel.

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Suomenkielinen Wikipedia – vapaa tietosanakirja

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Suojakaasu
Suojakaasua käytetään suojaamaan materiaalia ilmakehän kaasujen vaikutukselta. Suojakaasuja käytetään elintarviketeollisuudessa ja hitsauksessa.

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Technisch E-NL Woordenboek

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shielding gas
inert gas

English Greek Technical Dictionary

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shielding gas
shielding gas αέριο προστασίας


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