DEVICE FOR COOLING A METAL STRIP WITH A HOT DIP COATING OF HIGH THICKNESS
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United States of America Patent
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Issued Date -
Aug 15, 2024
app pub date -
Mar 24, 2022
filing date -
Aug 6, 2021
priority date (Note) -
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Abstract
An installation for adjusting the thickness of a hot liquid coating on a traveling strip, and for cooling said coating, installation successively comprising, from the bottom upwards, a wiping device comprising gas knives for wiping excess liquid from the coated strip at the outlet of a liquid bath and at least one gas cooling header with gas blowers for solidifying said coating, wherein a water cooling header is intercalated on the strip path between the wiping device and the gas cooling header, said water cooling header comprising at least one nozzle, one gas cooling header and one water cooling header being located on either side of the traveling strip, the water cooling header being configured to produce airless spraying of demineralized water onto the coated strip, so as to selectively increase the viscosity of an external surface or skin of the liquid coating, and not the entire bulk thickness thereof.
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