SOLUTION FOR ELECTROPLATING IRON, AND ELECTROPLATED STEEL SHEET MANUFACTURED BY USING SAME

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)

Application Number:

PCT/KR2020/018283

Publication Date:

June 23, 2022

Filing Date:

December 14, 2020

Export Citation:

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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: