STEEL SHEET FOR HOT PRESSING, MANUFACTURING PROCESS THEREFOR, AND PROCESS FOR PRODUCING HOT-PRESSED MEMBER USING SAME

Title:

STEEL SHEET FOR HOT PRESSING, MANUFACTURING PROCESS THEREFOR, AND PROCESS FOR PRODUCING HOT-PRESSED MEMBER USING SAME

Document Type and Number:

WIPO Patent Application WO/2013/132816

Kind Code:

A1

Abstract:

Provided are: a steel sheet for hot pressing, said steel sheet being capable of yielding, without fail, a hot-pressed member which exhibits excellent adhesion of a coating, excellent resistance to perforation corrosion, and excellent resistance to lap-joint corrosion; a manufacturing process therefor; and a process for producing a hot-pressed member, using the same. A steel sheet for hot pressing, characterized by bearing a Zn-based plating layer having a deposit weight of 10 to 90g/m2 on a steel sheet such that the mean ferrite grain diameter at the surface of the steel sheet is 20μm or less.

Inventors:

MIYOSHI TATSUYA (JP)
NAKAJIMA SEIJI (JP)
ANDO SATORU (JP)

Application Number:

PCT/JP2013/001294

Publication Date:

September 12, 2013

Filing Date:

March 04, 2013

Export Citation:

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Assignee:

JFE STEEL CORP (JP)

International Classes:

C23C2/06; B21D22/20; C21D1/18; C21D9/00; C21D9/46; C22C18/00; C22C18/04; C22C21/10; C22C38/00; C22C38/60; C23C2/02; C23C2/28; C23C2/40

Domestic Patent References:

WO2012018014A1

2012-02-09

Foreign References:

JP2006265583A	2006-10-05
JP2011246801A	2011-12-08
JP2010121181A	2010-06-03
GB1490535A	1977-11-02
JP3663145B2	2005-06-22
JP4039548B2	2008-01-30

Other References: