EP 3830057 A1 20210609 - PROTECTIVE LAYER FOR REFRACTORY PRODUCT
Title (en)
PROTECTIVE LAYER FOR REFRACTORY PRODUCT
Title (de)
SCHUTZSCHICHT FÜR FEUERFESTES PRODUKT
Title (fr)
COUCHE DE PROTECTION POUR PRODUIT REFRACTAIRE
Publication
Application
Priority
- FR 1857216 A 20180801
- EP 2019070241 W 20190726
Abstract (en)
[origin: WO2020025496A1] A method for treating a molten refractory product comprising more than 10% ZrO2 by weight, or "base product", said method comprising the following steps: a) heading at least a portion of the surface of said product, so as to cause the ZrO2 crystals to melt in a surface region extending over a depth of less than 2000 µm; and b) cooling the molten surface region obtained in the preceding step so as to obtain a protective layer.
IPC 8 full level
C04B 41/00 (2006.01); B23K 26/354 (2014.01); C03B 5/43 (2006.01); C04B 41/80 (2006.01)
CPC (source: EP US)
B23K 10/00 (2013.01 - US); B23K 26/354 (2015.10 - US); C03B 5/23 (2013.01 - US); C03B 5/43 (2013.01 - EP US); C03B 32/02 (2013.01 - US); C03C 3/062 (2013.01 - US); C04B 41/0072 (2013.01 - EP); C04B 41/009 (2013.01 - EP); C04B 41/80 (2013.01 - EP); B23K 10/00 (2013.01 - EP); B23K 26/354 (2015.10 - EP); B23K 2101/35 (2018.07 - EP US); B23K 2103/08 (2018.07 - EP); B23K 2103/54 (2018.07 - US); F27D 1/0006 (2013.01 - US)
Citation (search report)
See references of WO 2020025496A1
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 MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020025496 A1 20200206; CN 112789258 A 20210511; CN 112789258 B 20230217; EP 3830057 A1 20210609; FR 3084666 A1 20200207; FR 3084666 B1 20220513; JP 2021532052 A 20211125; JP 7259007 B2 20230417; US 11878933 B2 20240123; US 2021292211 A1 20210923
DOCDB simple family (application)
EP 2019070241 W 20190726; CN 201980065321 A 20190726; EP 19742399 A 20190726; FR 1857216 A 20180801; JP 2021504822 A 20190726; US 201917263788 A 20190726