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REFRACTORY FOR GAS BLOWING NOZZLE AND GAS BLOWING NOZZLE
A gas injection nozzle refractory with one or more gas injection small metal tubes buried therein has improved durability.A gas injection nozzle refractory includes a central refractory with a small metal tube buried therein; and a peripheral refractory surrounding the central refractory, wherein the central refractory on a plane of the gas injection nozzle refractory has an external shape of a circle with a radius in the range of R + 10 to R + 150 mm concentric with a virtual circle with a minimum radius surrounding all buried small metal tubes, R mm being a radius of the virtual circle, the central refractory is a MgO-C refractory with a carbon content in the range of 40% to 80% by mass, a metal Al content in the range of 3% to 8% by mass, and a mass ratio of a metal Si content to the metal Al content in the range of 0.30 to 1.0, and the peripheral refractory is a MgO-C refractory with a carbon content in the range of 10% to 25% by mass.
REFRACTORY FOR GAS BLOWING NOZZLE AND GAS BLOWING NOZZLE
A gas injection nozzle refractory with one or more gas injection small metal tubes buried therein has improved durability.A gas injection nozzle refractory includes a central refractory with a small metal tube buried therein; and a peripheral refractory surrounding the central refractory, wherein the central refractory on a plane of the gas injection nozzle refractory has an external shape of a circle with a radius in the range of R + 10 to R + 150 mm concentric with a virtual circle with a minimum radius surrounding all buried small metal tubes, R mm being a radius of the virtual circle, the central refractory is a MgO-C refractory with a carbon content in the range of 40% to 80% by mass, a metal Al content in the range of 3% to 8% by mass, and a mass ratio of a metal Si content to the metal Al content in the range of 0.30 to 1.0, and the peripheral refractory is a MgO-C refractory with a carbon content in the range of 10% to 25% by mass.
REFRACTORY FOR GAS BLOWING NOZZLE AND GAS BLOWING NOZZLE
FEUERFESTES MATERIAL FÜR GASBLASDÜSE UND GASBLASDÜSE
RÉFRACTAIRE POUR BUSE DE SOUFFLAGE DE GAZ, ET BUSE DE SOUFFLAGE DE GAZ
HOSOHARA SEIJI (author) / IIDA ATSUHISA (author) / TORIGOE ATSUSHI (author) / FUJIYOSHI RYOMA (author)
2023-03-15
Patent
Electronic Resource
English
IPC:
C21C
Weiterverarbeiten von Roheisen, z.B. Feinen, Herstellen von Schweißeisen oder Stahl
,
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL
/
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
/
C04B
Kalk
,
LIME
/
F27B
Industrieöfen, Schachtöfen, Brennöfen, Retorten allgemein
,
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
/
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
REFRACTORY FOR GAS BLOWING NOZZLE AND GAS BLOWING NOZZLE
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