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Title:
METHOD FOR COATING A METAL SURFACE WITH AN ULTRAFINE LAYER
Document Type and Number:
WIPO Patent Application WO2005059196
Kind Code:
A3
Abstract:
The invention concerns a method for continuously coating a moving substrate such as a steel metal strip, the coating formed being an ultrafine film of thickness ranging between 10 and 100 nm, deposited on the substrate: from a solution containing oxide nanoparticles, under controlled pH conditions, said substrate being at a temperature higher than 120 DEG C, the total duration of deposition being less than 5 seconds, and preferably less than 1 second. The invention is characterized in that at least one chemical additive, called refiner, is incorporated in said solution, said refiner having, reciprocally, an antagonistic effect relative to the formation of said coating.

Inventors:
LE CRAZ SEBASTIEN (BE)
Application Number:
PCT/BE2004/000157
Publication Date:
September 09, 2005
Filing Date:
November 02, 2004
Export Citation:
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Assignee:
CT RECH METALLURGIQUES ASBL (BE)
LE CRAZ SEBASTIEN (BE)
International Classes:
C23C2/02; C23C2/04; C23C2/26; C23C24/00; C23C24/08; C23C26/00; (IPC1-7): C23C2/26; C23C2/02; C23C24/00; C23C24/08
Domestic Patent References:
WO2003048403A12003-06-12
WO2002086194A22002-10-31
WO2000068460A12000-11-16
Foreign References:
US5853850A1998-12-29
US20020142150A12002-10-03
Other References:
PATENT ABSTRACTS OF JAPAN vol. 013, no. 187 (C - 592) 2 May 1989 (1989-05-02)
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 03 27 February 1998 (1998-02-27)
PATENT ABSTRACTS OF JAPAN vol. 013, no. 134 (C - 581) 4 April 1989 (1989-04-04)
PATENT ABSTRACTS OF JAPAN vol. 012, no. 301 (C - 521) 16 August 1988 (1988-08-16)
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