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Title:
STEEL SHEET FOR HOT PRESS FORMED MEMBER HAVING EXCELLENT PAINTING ADHESION AND POST-PAINTING CORROSION RESISTANCE, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2018/221992
Kind Code:
A1
Abstract:
The present invention relates to a steel sheet for a hot press formed member having excellent painting adhesion and post-painting corrosion resistance, and a method for manufacturing the same. A steel sheet for hot press forming according to one aspect of the present invention comprises a base steel sheet and a plated layer formed on a surface of the base steel sheet, wherein the ratio of an area occupied by pores to the entire area of a surface layer portion may be 10% or more in a cross section of the surface layer portion observed when the plated layer is cut in a thickness direction thereof.

Inventors:
OH, Jin-Keun (20-26 Pokposarang-gil,Gwangyang-si, Jeollanam-do, 57807, KR)
KIM, Seong-Woo (20-26 Pokposarang-gil,Gwangyang-si, Jeollanam-do, 57807, KR)
SHIN, Hyeon-Jeong (POSCO, 100 Songdogwahak-ro,Yeonsu-gu, Incheon, 21985, KR)
CHO, A-Ra (POSCO, 100 Songdogwahak-ro,Yeonsu-gu, Incheon, 21985, KR)
Application Number:
KR2018/006259
Publication Date:
December 06, 2018
Filing Date:
May 31, 2018
Export Citation:
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Assignee:
POSCO (6261, Donghaean-ro Nam-gu,Pohang-si, Gyeongsangbuk-do, 37859, KR)
International Classes:
B21D35/00; B21D22/02; C23C26/00
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (7th Floor, Daelim Acrotel13 Eonju-ro 30-gil,Gangnam-gu, Seoul, 06292, KR)
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