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US 9,938,194 B2Granted
Alumina-based filling sand for sliding nozzle
AssigneeYamakawa Sangyo Co., Ltd.
InventorsManabu Kawakami, Yoshikatsu Nishida
Life of this patent
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Abstract
An alumina-based filling sand for sliding nozzle comprising at least 50 wt % of mixed sand including 20 to 90 vol % of alumina sand and 80 to 10 vol % of silica sand, wherein the alumina sand has surface irregularities of 1.3 or less and comprises 50 wt % or more of an Al2O3 component.
Claims7
An alumina-based filling sand for sliding nozzle comprising at least 50 wt % of mixed sand including 20 to 50 vol % of alumina sand and 80 to 50 vol % of silica sand, wherein the alumina sand has surface irregularities value of 1.3 or less and comprises 50 wt % or more of an Al2O3 component.
Dependencies are inferred from the claim text.