Process for continuous manufacture of impurity and iron-free electrodes for electric arc furnaces
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United States of America Patent
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Sep 27, 1994
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N/A
app pub date -
Oct 29, 1992
filing date -
Oct 30, 1991
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Abstract
An improved process for the continuous manufacture of impurity and iron-free electrodes for electric arc furnaces including a mechanism allowing the replacement of an amorphous coal electrode by a graphite core electrode without extensive furnace shutdown. A dual sliding system is provided which allows an electrode to be continuously baked and provided to the furnace with or without a metal casing and which includes a special contact plate for transmitting electric current which decreases substantially the contact surface of the plate. The process is especially useful for obtaining impurity free elemental silicon.
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