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US 2011/0079244 A1Published application
Pickling method and pickling system of steel sheet
OwnerKenichi Uemura, Daisuke Sawadainventors
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OwnerKenichi Uemura, Daisuke Sawadainventors
Estimating the term…
The present invention provides a pickling method of steel sheet and pickling system of steel sheet able to efficiently remove oxide scale from steel sheet. That is, it provides a continuous pickling method of steel sheet having a step A of pickling the steel sheet in a pickling tank, a step B of blowing gas toward at least part of the surfaces of the steel sheet in the air after the step A, and a step C of pickling the steel sheet in a pickling tank after the step B, wherein at step B, the steel sheet is temporarily taken out from the pickling solution and gas is blown to at least part of the surfaces of the steel sheet in the air so as to evaporate the acid solution deposited on the surface of the steel sheet and locally increase the acid concentration to thereby efficiently remove even the stubborn Si oxides included in the oxide scale.
A pickling method of steel sheet comprising a pickling method for removing oxide scale of steel sheet characterized by having a step A of pickling the steel sheet, a step B of blowing gas toward at least part of the surfaces of the steel sheet in the air after said step A, and a step C of pickling said steel sheet after said step B.
A pickling system of steel sheet characterized by having at least one pickling tank and means for blowing gas toward at least part of the surfaces of the steel sheet in the air.
Dependencies are inferred from the claim text.