REFRACTORY AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To provide a refractory at a low cost having a thermal resistance >=1,100 deg.C, high alkali resistance and high mechanical strength and its manufacturing method. SOLUTION: The refractory comprises α-silicon carbide, α-silicon nitride, β-silicon nitride, and silicon oxynitri...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	HARA TOMOHIKO, ITO YASUO, IRIMURA JUNICHI
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BLASTING CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FORCOMBUSTION CHAMBERS, e.g. FIREBRIDGES CEMENTS CERAMICS CHEMISTRY COMBUSTION APPARATUS COMBUSTION PROCESSES COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDEDFOR DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS INCOMBUSTION CHAMBERS FURNACES HEATING KILNS LIGHTING LIME, MAGNESIA MECHANICAL ENGINEERING METALLURGY OVENS REFRACTORIES RETORTS SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTIONAPPARATUS SLAG TREATMENT OF NATURAL STONE WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a refractory at a low cost having a thermal resistance >=1,100 deg.C, high alkali resistance and high mechanical strength and its manufacturing method. SOLUTION: The refractory comprises α-silicon carbide, α-silicon nitride, β-silicon nitride, and silicon oxynitride and substantially does not contain cristobalite. Preferably, it comprises 60-85 wt.% α-silicon carbide and 15-40 wt.% total of α-silicon nitride, β-silicon nitride and silicon oxynitride. The refractory is manufactured by forming a compact comprising 65.0-85.0 wt.% silicon carbide powder, 10.5-33.5 wt.% silicon powder, and 1.5-4.5 wt.% microsilica powder and firing it in an nitrogen atmosphere.