Title:
SURFACE-PROCESSING COMPOSITION FOR GALVANIZED STEEL SHEET, SURFACE PROCESSING METHOD FOR GALVANIZED STEEL SHEET, AND GALVANISED STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2014/104428
Kind Code:
A1
Abstract:
Provided are: a surface-processing composition for galvanised steel sheet, the composition comprising, with respect to 100 parts by weight of solution as a whole, between 3.0 and 25.0 parts by weight of a silane compound, between 0.5 and 5.0 parts by weight of a molybdenum compound, between 0.5 and 5.0 parts by weight of a vanadium compound, between 0.1 and 3.0 parts by weight of a nickel compound, between 0.05 and 1.0 part by weight of a copper compound and a balance of solvent; a method of surface processing a galvanised steel sheet by means of the surface-processing composition; and a surface-processed galvanised steel sheet. The present invention makes it possible to provide a galvanised steel sheet in which corrosion resistance, blackening resistance, hot-water resistance and electrical conductivity are ensured, without the risk of additional equipment installation problems, increased production cost problems and environmental pollution problems for the purpose of chrome processing.
Inventors:
KIM HYUN-TAE (KR)
JIN YOUNG-SOOL (KR)
JIN YOUNG-SOOL (KR)
Application Number:
PCT/KR2012/011664
Publication Date:
July 03, 2014
Filing Date:
December 28, 2012
Export Citation:
Assignee:
POSCO (KR)
International Classes:
C23C22/06; C23C2/06; C23C22/40
Foreign References:
| KR100685028B1 | 2007-02-20 | |||
| KR100984935B1 | 2010-10-01 | |||
| KR20090058571A | 2009-06-09 | |||
| JP2007162098A | 2007-06-28 | |||
| KR101060823B1 | 2011-08-30 | |||
| JP2002332574A | 2002-11-22 | |||
| JPH0796699A | 1995-04-11 | |||
| JP2005146340A | 2005-06-09 |
Other References:
See also references of EP 2940186A4
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
특허법인 씨엔에스 (KR)
특허법인 씨엔에스 (KR)
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