Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
HIGH-ZIRCONIA ELECTROCAST REFRACTORY AND METHOD FOR MANUFACTURING THE SAME
To provide a high-zirconia electrocast refractory in which occurrence of cracks in manufacture and occurrence of cracks in use as a furnace material is further reduced while maintaining extremely high corrosion resistance to molten glass. The high-zirconia electrocast refractory contains 96.7 to 98.5 mass% of ZrO 2 , 0.8 to 2.7 mass% of SiO 2 , 0 to 0.2 mass% of Na 2 O, 0.21 to 1 mass% of K 2 O, 0.1 to 0.4 mass% of Al 2 O 3 , and does not substantially contain B 2 O 3 , in terms of oxide, as a chemical composition, wherein contents of the Na 2 O and the K 2 O satisfy a relation of following Formula (1) 0.15 mass % ¤ C K 2 O / 2 + C Na 2 O ¤ 0.6 mass % where C K2O is the content of K 2 O and C Na2O is the content of Na 2 O, and each of the contents is expressed by mass% in the refractory
HIGH-ZIRCONIA ELECTROCAST REFRACTORY AND METHOD FOR MANUFACTURING THE SAME
To provide a high-zirconia electrocast refractory in which occurrence of cracks in manufacture and occurrence of cracks in use as a furnace material is further reduced while maintaining extremely high corrosion resistance to molten glass. The high-zirconia electrocast refractory contains 96.7 to 98.5 mass% of ZrO 2 , 0.8 to 2.7 mass% of SiO 2 , 0 to 0.2 mass% of Na 2 O, 0.21 to 1 mass% of K 2 O, 0.1 to 0.4 mass% of Al 2 O 3 , and does not substantially contain B 2 O 3 , in terms of oxide, as a chemical composition, wherein contents of the Na 2 O and the K 2 O satisfy a relation of following Formula (1) 0.15 mass % ¤ C K 2 O / 2 + C Na 2 O ¤ 0.6 mass % where C K2O is the content of K 2 O and C Na2O is the content of Na 2 O, and each of the contents is expressed by mass% in the refractory
HIGH-ZIRCONIA ELECTROCAST REFRACTORY AND METHOD FOR MANUFACTURING THE SAME
ELEKTROGUSSFEUERFESTMATERIAL MIT HOHEM ZIRKONOXIDGEHALT UND VERFAHREN ZUR HERSTELLUNG DESSELBEN
RÉFRACTAIRE ÉLECTROFONDU À FORTE TENEUR EN ZIRCONE ET SON PROCÉDÉ DE FABRICATION
MATANO KENJI (Autor:in) / TOMURA NOBUO (Autor:in)
26.08.2020
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
/
C03B
Herstellung oder Formgebung von Glas, Mineral- oder Schlackenwolle
,
MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
/
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
HIGH-ZIRCONIA ELECTROCAST REFRACTORY AND METHOD FOR MANUFACTURING THE SAME
| Europäisches Patentamt | 2019
High-zirconia electrocast refractory and method for manufacturing the same
| Europäisches Patentamt | 2020