Strip coating device having jet strippers to control coating thickness
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United States of America Patent
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Oct 19, 1993
Grant Date -
N/A
app pub date -
Mar 6, 1992
filing date -
Mar 6, 1991
priority date (Note) -
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Abstract
A jet stripping apparatus includes two dual-nozzle assemblies (12) which, when in use, are disposed one on either side of an ascending, substantially vertical steel strip (10) which is to be partly stripped of a molten zinc or aluminium/zinc alloy coating (19). Each assembly comprises upper and lower elongate nozzles (13,14) extending transversely of the strip, a device to supply pressurized gas (15) to the nozzles for emergence therefrom as jet streams (20,21) directed towards the strip, and a reaction body (16) intermediate the nozzles defining a pressurized stabilizing zone (17) between itself and the strip. The lower jet streams are inclined downwardly at 5.degree. to the horizontal.
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