The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 2020
Filed:
Jul. 28, 2016
Applicant:
Posco, Pohang-si, Gyeongsangbuk-do, KR;
Inventor:
Hyoung-Kuk Park, Pohang-si, KR;
Assignee:
POSCO, Pohang-si, Gyeongsangbuk-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23G 3/02 (2006.01);
U.S. Cl.
CPC ...
C23G 3/024 (2013.01); C23G 3/025 (2013.01); C23G 3/029 (2013.01);
Abstract
A pickling apparatus includes a plurality of pickling tanks in which a scale of a steel plate is removed while the steel plate is advanced and sequentially dipped; an intermediate spraying unit, disposed between a pickling tank at the front end and a pickling tank at the rear end, for spraying a pickling solution onto the steel plate; and a pickling solution supply means configured to provide a pickling solution of a concentration used in the pickling tank at the rear end to the intermediate spraying unit, wherein a wringer roll disposed between the plurality of pickling tanks is removed.