Process for the production of a shielding gas mixture
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United States of America Patent
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Jan 31, 2006
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N/A
app pub date -
Dec 20, 2002
filing date -
Dec 20, 2001
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Expired
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Abstract
In a process for the production of a shielding gas mixture argon is withdrawn from a liquid argon supply, vaporized and mixed with a gas premix. The gas premix contains helium and/or argon and a doping gas. A shielding gas mixture prepared this way is outstandingly suited, especially because of the helium content, for arc welding of aluminum and aluminum alloys.
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