Title:
PICKLING APPARATUS AND PICKLING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/124968
Kind Code:
A1
Abstract:
The present invention provides a pickling apparatus and a pickling method which can increase the pickling efficiency of giga steel products. An embodiment of the present invention provides a pickling apparatus comprising: an acid tank; a measurement part disposed in front of the acid tank so as to measure at least one of the whiteness and color difference values of a steel sheet entering the acid tank; and a control part connected to the measurement part so as to control, on the basis of the measured values, the speed at which the steel sheet passes through the acid tank.
Inventors:
PARK HYOUNG-KUK (KR)
KIM JONG-KOOG (KR)
JUN GI-HONG (KR)
KIM SEUNG-GI (KR)
KIM JONG-KOOG (KR)
JUN GI-HONG (KR)
KIM SEUNG-GI (KR)
Application Number:
PCT/KR2018/016225
Publication Date:
June 27, 2019
Filing Date:
December 19, 2018
Export Citation:
Assignee:
POSCO (KR)
International Classes:
C23G3/02; C23G1/08; G01N21/25
Foreign References:
| JP2002241978A | 2002-08-28 | |||
| KR20140023693A | 2014-02-27 | |||
| JPH11189885A | 1999-07-13 | |||
| JP2003231981A | 2003-08-19 | |||
| JP2000303197A | 2000-10-31 |
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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