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A platform for research: civil engineering, architecture and urbanism
FUSED QUARTZ-SILICON NITRIDE FIREPROOF MATERIAL
To provide a fireproof material having low reactivity and excellent thermal shock resistance.SOLUTION: A fused quartz-silicon nitride fireproof material according to the present invention is formed containing 30-75 mass% of a silicon nitride material and 25-70 mass% of a fused quartz material so that the total amount thereof is 90 mass% or more when the whole mass is 100 mass%, and has a porosity of 7-18%, a compressive strength of 35 MPa or more, and a coefficient of linear thermal expansion at 1,000°C of 0.3% or less.SELECTED DRAWING: None
【課題】反応性が低く、かつ耐熱衝撃性に優れた耐火材を提供すること。【解決手段】本発明の溶融石英−窒化ケイ素質耐火材は、全体の質量を１００ｍａｓｓ％としたときに、３０〜７５ｍａｓｓ％の窒化ケイ素質材と、２５〜７０ｍａｓｓ％の溶融石英質材と、を合計が９０ｍａｓｓ％以上となるように含有して形成され、気孔率が７〜１８％、圧縮強度が３５ＭＰａ以上、１０００℃での熱間線膨張率が０．３％以下であることを特徴とする。【選択図】なし
FUSED QUARTZ-SILICON NITRIDE FIREPROOF MATERIAL
To provide a fireproof material having low reactivity and excellent thermal shock resistance.SOLUTION: A fused quartz-silicon nitride fireproof material according to the present invention is formed containing 30-75 mass% of a silicon nitride material and 25-70 mass% of a fused quartz material so that the total amount thereof is 90 mass% or more when the whole mass is 100 mass%, and has a porosity of 7-18%, a compressive strength of 35 MPa or more, and a coefficient of linear thermal expansion at 1,000°C of 0.3% or less.SELECTED DRAWING: None
【課題】反応性が低く、かつ耐熱衝撃性に優れた耐火材を提供すること。【解決手段】本発明の溶融石英−窒化ケイ素質耐火材は、全体の質量を１００ｍａｓｓ％としたときに、３０〜７５ｍａｓｓ％の窒化ケイ素質材と、２５〜７０ｍａｓｓ％の溶融石英質材と、を合計が９０ｍａｓｓ％以上となるように含有して形成され、気孔率が７〜１８％、圧縮強度が３５ＭＰａ以上、１０００℃での熱間線膨張率が０．３％以下であることを特徴とする。【選択図】なし
FUSED QUARTZ-SILICON NITRIDE FIREPROOF MATERIAL
溶融石英−窒化ケイ素質耐火材
ARIGA KIKUO (author) / KATO MASAHITO (author) / ASADA KAZUTO (author) / ISHII AKITO (author) / IWAMOTO TAKASHI (author)
2019-12-12
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
/
B22D
CASTING OF METALS
,
Gießen von Metallen
/
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
Quartz powder aluminous fireproof material and preparation method thereof
| European Patent Office | 2015
| European Patent Office | 2015