Procedure for operating a hot metallizing furnace
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United States of America Patent
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-
Aug 4, 1992
Grant Date -
N/A
app pub date -
Jul 31, 1989
filing date -
Feb 3, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In the operation of a hot metallizing furnace for lengths of metal, in particular metal strip, in which the length of metal to be coated is passed from above through the upper zone of a smelt of a coating material located in a smelt container, the smelt container can be heated by means of an induction coil made up of partial coils arranged axially on top of one another. During hot metallizing the upper partial coil(s) is/are connected to a medium frequency source of electricity in a single-phase manner. For the removal of the deposits which accumulate in the lower area of the smelt vessel, the lower partial coil(s) is/are connected to a three-phase current mains frequency source of electricity. The agitated deposits are then removed from the smelt using a collecting vessel.
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