Electric arc furnace | Wikipedia audio article
Channel: Subhajit Sahu
Date: 2019-01-02

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Electric_arc_furnace


00:01:14 1 History
00:05:17 2 Construction
00:13:43 3 Operation
00:23:28 4 Advantages for steelmaking
00:25:10 5 Environmental issues
00:26:34 6 Other electric arc furnaces
00:29:56 7 Cooling methods
00:31:29 8 Plasma arc furnace
00:32:21 9 Vacuum arc remelting
00:36:33 10 See also



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SUMMARY
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An electric arc furnace (EAF) is a furnace that heats charged material by means of an electric arc.
Industrial arc furnaces range in size from small units of approximately one ton capacity (used in foundries for producing cast iron products) up to about 400 ton units used for secondary steelmaking. Arc furnaces used in research laboratories and by dentists may have a capacity of only a few dozen grams. Industrial electric arc furnace temperatures can be up to 1,800 °C (3,272 °F), while laboratory units can exceed 3,000 °C (5,432 °F).
Arc furnaces differ from induction furnaces in that the charge material is directly exposed to an electric arc and the current in the furnace terminals passes through the charged material.