EP 4357487 A1 20240424 - WORK ROLL COATING AND METHOD FOR PRODUCING THE SAME

Title (en)

WORK ROLL COATING AND METHOD FOR PRODUCING THE SAME

Title (de)

ARBEITSWALZENBESCHICHTUNG UND VERFAHREN ZUR HERSTELLUNG DAVON

Title (fr)

REVÊTEMENT DE CYLINDRE DE TRAVAIL ET SON PROCÉDÉ DE PRODUCTION

Publication

EP 4357487 A1 20240424 (EN)

Application

EP 22202105 A 20221018

Priority

EP 22202105 A 20221018

Abstract (en)

The present invention relates to a method of coating a thermally-sensitive metal object with a protective coating, comprising the following steps:- a first step of applying on said thermally-sensitive metal object a coating layer containing at least one phase having at least one mechanical property that can be improved by heat treatment;- a second step of performing a superficial annealing on the coated thermally-sensitive metal object;characterised in that the superficial annealing conditions are selected so that said mechanical property of the coating is increased while the corresponding mechanical property of the metal object is not significantly thermally-affected by the annealing step, so that the coating morphology is not modified during annealing and so that the annealing does not result in the creation of additional layers at the coating/substrate interface due to inter-diffusion.

IPC 8 full level

C25D 5/50 (2006.01); C23C 18/16 (2006.01); C23C 18/32 (2006.01); C25D 15/00 (2006.01); C25D 3/06 (2006.01); C25D 3/12 (2006.01); C25D 3/56 (2006.01)

CPC (source: EP)

C23C 18/1692 (2013.01); C23C 18/32 (2013.01); C25D 5/50 (2013.01); C25D 15/00 (2013.01); C25D 3/06 (2013.01); C25D 3/12 (2013.01); C25D 3/562 (2013.01)

Citation (applicant)

US 2643221 A 19530623 - ABNER BRENNER, et al
US 2009178736 A1 20090716 - SMITH BLAIR A [US], et al
WO 0061838 A2 20001019 - SHINING SURFACE SYSTEMS INC [US]
WO 2014111616 A1 20140724 - SAVROC LTD [FI]
US 4628179 A 19861209 - CRAHAY JEAN R [BE]
US 2008102291 A1 20080501 - HATTIANGADI ASHWIN A [US], et al
C.A. HUANG ET AL.: "Microstructure study of the hardening mechanism of Cr-Ni alloy deposits after flame heating for a few seconds", SURF. COAT. TECHNOL., vol. 206, 2011, pages 325 - 329, XP028283853, DOI: 10.1016/j.surfcoat.2011.07.024
Q. ZHANG: "Pulse laser assisted composite electroless deposit to prepare ceramic coating", PHYSICS PROCED, vol. 5, 2010, pages 327 - 332, XP027558231

Citation (search report)

[X] US 2018363147 A1 20181220 - KIM YEON-HO [KR], et al
[XI] EP 3167100 B1 20200226 - SAVROC LTD [FI]
[X] US 2015166802 A1 20150618 - DIXON RICHARD [GB], et al
[X] US 2013061916 A1 20130314 - BAKER-O'NEAL BRETT C [US], et al
[XD] ZHANG QUNLI ET AL: "Pulse laser assisted composite electroless deposit to prepare ceramic coating", PHYSICS PROCEDIA, vol. 5, 1 January 2010 (2010-01-01), AMSTERDAM, NL, pages 327 - 332, XP093029120, ISSN: 1875-3892, Retrieved from the Internet <URL:https://pdf.sciencedirectassets.com/277348/1-s2.0-S1875389210X00098/1-s2.0-S1875389210005791/main.pdf?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEFoaCXVzLWVhc3QtMSJIMEYCIQCxTkwoP8iz9EZUE8g4sBw6Mu37bW/k0qjKXdtR+cMoXQIhAP7baa1Eop7NSmTWeYlWnEZm2kTeuBjK7ZHu7rQOAJdIKrIFCBMQBRoMMDU5MDAzNTQ2ODY1Igw7LVOYDs3e4LLhM> [retrieved on 20230306], DOI: 10.1016/j.phpro.2010.08.153

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4357487 A1 20240424

DOCDB simple family (application)

EP 22202105 A 20221018