Title:
溶融亜鉛めっき鋼板及びその製造方法
Document Type and Number:
Japanese Patent JP7247946
Kind Code:
B2
Abstract:
Provided is a method for producing a hot-dip zinc plated steel sheet having excellent plating appearance and corrosion resistance. This method for producing a hot-dip zinc plated steel sheet comprises: a step for performing Fe-electroplating on a cold rolled steel sheet containing Si and Mn in a sulfuric acid bath including 20-200 g/L of sulfate ions to obtain an Fe plated steel sheet in which an Fe plated layer having an adhered amount of 1.0 g/m2 or more is formed on at least one surface of the cold rolled steel sheet; then, a step for pickling the Fe plated steel sheet; then, a step for annealing the Fe plated steel sheet in a reducing atmosphere; and then, a step for performing hot-dip zinc plating on the Fe plated steel sheet to obtain a hot-dip zinc plated steel sheet.
Inventors:
Yusuke Okumura
Mai Aoyama
Masataka Koba
Shunsuke Yamamoto
Yoichi Makimizu
Akira Okumura
Katsuya Hoshino
Mai Aoyama
Masataka Koba
Shunsuke Yamamoto
Yoichi Makimizu
Akira Okumura
Katsuya Hoshino
Application Number:
JP2020077747A
Publication Date:
March 29, 2023
Filing Date:
April 24, 2020
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
C23C2/02; C22C18/00; C22C38/00; C22C38/04; C22C38/60; C23C2/06; C23C2/40; C23C28/00; C25D5/26
Domestic Patent References:
| JP5171389A | ||||
| JP2003328099A | ||||
| JP2002322551A |
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Keisuke Kawahara
Mitsutsugu Sugimura
Keisuke Kawahara