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Patent Searching and Data


Title:
PLATED STEEL SHEET FOR HOT PRESSING, PROCESS FOR HOT-PRESSING PLATED STEEL SHEET AND AUTOMOBILE PART
Document Type and Number:
WIPO Patent Application WO/2014/171417
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a plated steel sheet for hot pressing, said plated steel sheet having a smaller coating quantity and nevertheless exhibiting excellent lubricity, and being capable of ensuring improvement in the formability and productivity in hot pressing and improvement in the chemical convertibility in chemical conversion treatment subsequent to the hot pressing; a process for hot-pressing a plated steel sheet; and an automobile part produced by the process. The purpose can be attained by providing, on one or both surfaces of a steel sheet, both an Al deposit layer which comprises Al as an essential component and further contains one or more elements selected from among Mg, Ca, Sr, Li, Na and K in a total amount of 0.02 to 2mass% and a surface coating layer which is laminated on the Al deposit layer and which comprises ZnO as an essential component.

Inventors:
MAKI JUN (JP)
YAMANAKA SHINTARO (JP)
KUROSAKI MASAO (JP)
Application Number:
PCT/JP2014/060588
Publication Date:
October 23, 2014
Filing Date:
April 14, 2014
Export Citation:
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Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
C23C2/12; B21D22/20; C22C21/00; C22C21/06; C22C38/00; C22C38/14; C23C2/28; C23C28/00
Domestic Patent References:
WO2012137687A12012-10-11
WO2009131233A12009-10-29
Foreign References:
JP2011137210A2011-07-14
JP2000038640A2000-02-08
JP2004211151A2004-07-29
JP2003129209A2003-05-08
JP2012011201A2012-01-19
JP4264373B22009-05-13
Other References:
See also references of EP 2980262A4
Attorney, Agent or Firm:
KAMEYA, Yoshiaki et al. (JP)
Yoshiaki Kameya (JP)
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