AT10 - Applied Technology: Plasma Arc Concept A plasma is...

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Applied Technology : Plasma Arc Concept A plasma is an ionized gas which has become an electrical conductor. Gas is passed through an electric arc, thus reaching approximately 5500 o C. This is known as a “thermal” or “hot” plasma. See “Plasma (Ion) Nitriding” for “cold plasma” applications such as semiconductor etching. Containing tremendous energy, thermal plasmas produce very fast and precise melting and cutting of metals. . Applications Melting; metals, ceramics, and glasses Reduction; ores Ladle Refining; steel Surface Treating; wear and corrosion resistance Welding; metals Cutting; metals Technologies Replaced Cutting Metals by Mechanical or Laser Welding by Conventional Arc, Laser, or Gas Melting Metals, Ceramics, and Glasses by Conventional Arc or Fossil Fuels Heat Treating Metal Surfaces Wastes Reduced Metal Cutting Fluids and Wastewater (machining) Scale and Slag (welding) Wastewater and Emissions (heat treating) Material Removal Potential in Manufacturing Indust SIC Pot Indust SIC Pot Indust SIC Pot Indust SIC Pot Indust SIC Pot Food 20 LOW Lumber 24 LOW Chem 28 LOW Stone 32 MED Elect 36 HI Tobac 21 LOW Furn 25 LOW Petrol 29 LOW Pmetal 33 HI Transp 37 HI Textile 22 LOW Paper 26 LOW Rubber 30 LOW MetFab 34 HI Instr 38 LOW Apparel 23 LOW Printing 27 LOW Leather 31 LOW Mach 35 HI Misc 39 MED Credits: : Dr. Philip Schmidt and Dr. F.T. Sparrow; Unimar Group, Ltd; The Electrification Council; Electric Power Research Institute AT10
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AT10 - Applied Technology: Plasma Arc Concept A plasma is...

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