Title:
ALLOYED HOT-DIPPED GALVANIZED STEEL SHEET FOR HOT STAMPING AND METHOD OF MANUFACTURING THE SAME, AND HOT STAMPED COMPONENT
Document Type and Number:
Japanese Patent JP2014159624
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method of manufacturing a high Si-containing plated steel sheet for hot stamping capable of suppressing occurrence of non-plating while maintaining high joining strength at a welding part when using a galvanized steel sheet containing high Si content of 0.7% or more for hot stamping applications.SOLUTION: There is provided a method of manufacturing a galvanized steel sheet for hot stamping by annealing a hot-rolled pickled steel sheet or a cold rolled steel sheet containing C:0.10 to 0.5% (here and hereinafter, meaning mass%), Si:0.7 to 2.5%, Mn:1.0 to 3%, and Al:0.01 to 0.5%, in a reducing atmosphere, and then, plating the resultant steel sheet. The annealing is conducted for 30 to 270 seconds in a temperature range of 500 to 700°C.
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Inventors:
KOJIMA TAKESHI
IRIE KOJI
MINOWA GO
IRIE KOJI
MINOWA GO
Application Number:
JP2013090645A
Publication Date:
September 04, 2014
Filing Date:
April 23, 2013
Export Citation:
Assignee:
KOBE STEEL LTD
International Classes:
C21D9/46; C22C38/00; C22C38/06; C22C38/58; C23C2/02; C23C2/06; C23C2/28
Domestic Patent References:
| JP2012041597A | 2012-03-01 | |||
| JP2006037130A | 2006-02-09 | |||
| JP2006037141A | 2006-02-09 | |||
| JP2003126920A | 2003-05-08 | |||
| JP2007169679A | 2007-07-05 | |||
| JP2003328099A | 2003-11-19 |
Foreign References:
| WO2011023418A1 | 2011-03-03 | |||
| WO2011081394A2 | 2011-07-07 |
Attorney, Agent or Firm:
Hisakazu Ueki
Hisahiko Ueki
Tadashi Sugawa
Hiroaki Ito
Junko Uemura
Hisahiko Ueki
Tadashi Sugawa
Hiroaki Ito
Junko Uemura