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CAO-ZRO2 COMPOSITION, METHOD FOR PRODUCING CAO-ZRO2 COMPOSITION, AND CAO-ZRO2-CONTAINING REFRACTORY MATERIAL AND CASTING NOZZLE
Provided is a ZrO2-CaO-C based refractory material which is capable of maintaining high adhesion resistance over a long period of time, while exhibiting significant slaking resistance, and suppressing self-fluxing, i.e., exhibiting corrosion-erosion resistance. The refractory material comprises a CaO-ZrO2 composition containing a CaO component in an amount of 40% by mass to 60% by mass, wherein a mass ratio of the CaO component to a ZrO2 component is 0.67 to 1.5, and wherein the CaO-ZrO2 composition includes a eutectic microstructure of CaO crystals and CaZrO3 crystals, wherein a width of each of the CaO crystals observable in a cross-sectional microstructure is 50 µm or less.
CAO-ZRO2 COMPOSITION, METHOD FOR PRODUCING CAO-ZRO2 COMPOSITION, AND CAO-ZRO2-CONTAINING REFRACTORY MATERIAL AND CASTING NOZZLE
Provided is a ZrO2-CaO-C based refractory material which is capable of maintaining high adhesion resistance over a long period of time, while exhibiting significant slaking resistance, and suppressing self-fluxing, i.e., exhibiting corrosion-erosion resistance. The refractory material comprises a CaO-ZrO2 composition containing a CaO component in an amount of 40% by mass to 60% by mass, wherein a mass ratio of the CaO component to a ZrO2 component is 0.67 to 1.5, and wherein the CaO-ZrO2 composition includes a eutectic microstructure of CaO crystals and CaZrO3 crystals, wherein a width of each of the CaO crystals observable in a cross-sectional microstructure is 50 µm or less.
CAO-ZRO2 COMPOSITION, METHOD FOR PRODUCING CAO-ZRO2 COMPOSITION, AND CAO-ZRO2-CONTAINING REFRACTORY MATERIAL AND CASTING NOZZLE
CAO-ZRO2-ZUSAMMENSETZUNG, VERFAHREN ZUR HERSTELLUNG EINER CAO-ZRO2-ZUSAMMENSETZUNG UND CAO-ZRO2-ENTHALTENDES FEUERFESTES MATERIAL UND GIESSDÜSE
COMPOSITION DE CAO-ZRO2, PROCÉDÉ DE PRODUCTION DE COMPOSITION DE CAO-ZRO2 AINSI QUE MATÉRIAU RÉFRACTAIRE CONTENANT DU CAO-ZRO2 ET BUSE DE COULÉE
LI LING (author) / MORIKAWA KATSUMI (author) / SASAKI AKINARI (author) / MATSUMOTO SHIGEFUMI (author)
2023-05-10
Patent
Electronic Resource
English
IPC:
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
/
B22D
CASTING OF METALS
,
Gießen von Metallen
/
C04B
Kalk
,
LIME
| European Patent Office | 2021
| European Patent Office | 2021
| European Patent Office | 2022
| European Patent Office | 2023
| European Patent Office | 2021