Title:
SOLUTION FOR ELECTROPLATING IRON, AND ELECTROPLATED STEEL SHEET MANUFACTURED BY USING SAME
Document Type and Number:
WIPO Patent Application WO/2022/131386
Kind Code:
A1
Abstract:
The present invention relates to a solution for electroplating iron, comprising: iron ions comprising first iron ions and second iron ions; a complexing agent; and unavoidable impurities, wherein the amount of second iron ions among the iron ions is 5 to 60 wt%. According to the present invention, electroplating efficiency is high, there is no drop in electroplating efficiency due to a continuous plating operation, and sludge generation is prevented, and, thus, the plating solution is easily managed. Burning can be prevented even in a high current density operation, and, thus, a high-quality iron-plated layer can be achieved. The plating solution does not need to be replaced, as the concentration of second iron ions generated by a plating reaction is kept constant, and, thus, the present invention is appropriate for a continuous plating process.
Inventors:
JUNG JIN-HO (KR)
LEE WON-HWI (KR)
LIM SANG-BAE (KR)
LEE WON-HWI (KR)
LIM SANG-BAE (KR)
Application Number:
PCT/KR2020/018283
Publication Date:
June 23, 2022
Filing Date:
December 14, 2020
Export Citation:
Assignee:
POSCO (KR)
International Classes:
C25D3/20; C25D7/06
Foreign References:
KR970026596A | 1997-06-24 | |||
JP2005256045A | 2005-09-22 | |||
KR20090112919A | 2009-10-29 | |||
KR101974066B1 | 2019-08-23 | |||
KR20200142748A | 2020-12-23 | |||
KR20090112919A | 2009-10-29 | |||
KR20130070235A | 2013-06-27 | |||
JPH10204674A | 1998-08-04 | |||
JPH0681188A | 1994-03-22 |
Other References:
See also references of EP 4261328A4
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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