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Welder Shields with Waste Gas.(Lincoln Global Inc. developed fuel-cell powered electric arc...

Lincoln Global, Inc. (22801 St. Clair Ave., Cleveland, OH 44117; Tel: 216/481-8100) has developed an electric arc welder powered by a methanol fuel cells. The fuel cells produce carbon dioxide as a reactive product, used as a shielding gas during the arc welding process. The fuel cells are stacked together to produce the desired arc voltage and current between an electrode and the workpiece.

The arc welder includes a welding current to control the current wave shape through the electrode and to control or incr

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