Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
HIGH-ZIRCONIA ELECTRO-FUSED CAST REFRACTORY MATERIAL
An object of the present invention is to provide a high zirconia electrically-fused cast refractory which suppresses the joint opening at a contact site between refractories, suppresses the formation of zircon crystals, does not extremely increase the residual volume expansion rate even when zircon crystals are formed, and has high corrosion resistance from glass; and the present invention relates to a high zirconia electrically-fused cast refractory, wherein, as chemical components: the sum of ZrO2 and HfO2 is more than 80% by mass and 92% by mass or less, Al2O3 is 0.2 to 3.0% by mass, SiO2 is 1.5 to 10% by mass, Na2O is 0.05 to 2.0% by mass, K2O is 1.0% by mass or less, B2O3 is 0 to 1.5% by mass, Y2O3 is more than 4.0% by mass and 9.0% by mass or less, the sum of MgO and CaO is 0.02 to 0.4% by mass, CaO is 0.01% by mass or more, the sum of Fe203 and TiO2 is 0.5% by mass or less, P2O5 content is 0.04% by mass or less.
HIGH-ZIRCONIA ELECTRO-FUSED CAST REFRACTORY MATERIAL
An object of the present invention is to provide a high zirconia electrically-fused cast refractory which suppresses the joint opening at a contact site between refractories, suppresses the formation of zircon crystals, does not extremely increase the residual volume expansion rate even when zircon crystals are formed, and has high corrosion resistance from glass; and the present invention relates to a high zirconia electrically-fused cast refractory, wherein, as chemical components: the sum of ZrO2 and HfO2 is more than 80% by mass and 92% by mass or less, Al2O3 is 0.2 to 3.0% by mass, SiO2 is 1.5 to 10% by mass, Na2O is 0.05 to 2.0% by mass, K2O is 1.0% by mass or less, B2O3 is 0 to 1.5% by mass, Y2O3 is more than 4.0% by mass and 9.0% by mass or less, the sum of MgO and CaO is 0.02 to 0.4% by mass, CaO is 0.01% by mass or more, the sum of Fe203 and TiO2 is 0.5% by mass or less, P2O5 content is 0.04% by mass or less.
HIGH-ZIRCONIA ELECTRO-FUSED CAST REFRACTORY MATERIAL
ELEKTROGESCHMOLZENES FEUERFESTES GUSSMATERIAL MIT HOHEM ZIRKONIAGEHALT
MATÉRIAU RÉFRACTAIRE COULÉ ÉLECTROFONDU À HAUTE TENEUR EN ZIRCONE
AKAMATSU HAYATO (Autor:in) / ABE KOYA (Autor:in) / SUGIYAMA HIROSHI (Autor:in) / HASHIMOTO ITARU (Autor:in)
05.02.2025
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
/
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