Electromagnetic wiping device, plated steel sheet wiping apparatus including same, and method for manufacturing plated steel sheet
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United States of America Patent
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Jun 27, 2017
Grant Date -
Dec 4, 2014
app pub date -
Dec 24, 2012
filing date -
Dec 26, 2011
priority date (Note) -
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Abstract
There are provided an electromagnetic wiping device, a plated steel sheet wiping apparatus including the electromagnetic wiping device, and a method for manufacturing a plated steel sheet. A portion of a plating layer of a steel sheet having passed through a plating bath is preliminarily removed at least in an edge region of the steel sheet, and a gas wiping operation is performed. Therefore, overplating is prevented at least in the edge region of the steel sheet. In addition, since the load of gas wiping can be reduced while maintaining the line speed of the steel sheet, the quantity of scattered particles and the formation of dross can be reduced for improving the plating quality of the steel sheet and the productivity of a manufacturing process.
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