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CARBON-CONTAINING UNFIRED BRICK REFRACTORY
PROBLEM TO BE SOLVED: To solve problems that fibrous material is oxidized and eliminated because material quality of the fibrous material is nonoxide and crack propagation inhibition effect by bridging of fiber is lost in the case of a MgO-C brick refractory to which the fibrous material is applied, for example conventional nanomaterials.SOLUTION: There is provided a carbon-containing unfired brick refractory by curing a mixture raw material containing following (1) to (3). (1) at least one compound of AlOand MgO with particle size ranges, in average particle diameter, of 3 mm or more of 5 to 40 mass%, 1 mm or more and less than 3 mm of 10 to 45 mass%, 0.15 mm or more and less than 1 mm of 15 to 30 mass% and less than 0.15 mm of 5 to 45 mass%. (2) a graphite raw material. (3) at least two powders of MgO, AlOand SiOwith an average particle diameter of 1 μm or less.SELECTED DRAWING: Figure 5
【課題】従来のナノマテリアルをはじめとする繊維状物質を適用したMgO−Cれんが耐火物の場合、繊維状物質の材質が非酸化物なので使用時に酸化消失し、繊維のブリッジングによる亀裂進展抑制効果がなくなる、という課題があった。【解決手段】下記(1)〜(3)を含む混合原料が硬化したことを特徴とするカーボン含有不焼成れんが耐火物。(1)平均粒径で3mm以上が5〜40質量%、1mm以上3mm未満が10〜45質量%、0.15mm以上1mm未満が15〜30質量%、0.15mm未満が5〜45質量%の粒度範囲からなるAl2O3およびMgOの少なくとも1種類の化合物。(2)黒鉛原料。(3)平均粒子径が1μm以下であるMgO、Al2O3、SiO2のうち少なくとも2種類の粉体。【選択図】図5
CARBON-CONTAINING UNFIRED BRICK REFRACTORY
PROBLEM TO BE SOLVED: To solve problems that fibrous material is oxidized and eliminated because material quality of the fibrous material is nonoxide and crack propagation inhibition effect by bridging of fiber is lost in the case of a MgO-C brick refractory to which the fibrous material is applied, for example conventional nanomaterials.SOLUTION: There is provided a carbon-containing unfired brick refractory by curing a mixture raw material containing following (1) to (3). (1) at least one compound of AlOand MgO with particle size ranges, in average particle diameter, of 3 mm or more of 5 to 40 mass%, 1 mm or more and less than 3 mm of 10 to 45 mass%, 0.15 mm or more and less than 1 mm of 15 to 30 mass% and less than 0.15 mm of 5 to 45 mass%. (2) a graphite raw material. (3) at least two powders of MgO, AlOand SiOwith an average particle diameter of 1 μm or less.SELECTED DRAWING: Figure 5
【課題】従来のナノマテリアルをはじめとする繊維状物質を適用したMgO−Cれんが耐火物の場合、繊維状物質の材質が非酸化物なので使用時に酸化消失し、繊維のブリッジングによる亀裂進展抑制効果がなくなる、という課題があった。【解決手段】下記(1)〜(3)を含む混合原料が硬化したことを特徴とするカーボン含有不焼成れんが耐火物。(1)平均粒径で3mm以上が5〜40質量%、1mm以上3mm未満が10〜45質量%、0.15mm以上1mm未満が15〜30質量%、0.15mm未満が5〜45質量%の粒度範囲からなるAl2O3およびMgOの少なくとも1種類の化合物。(2)黒鉛原料。(3)平均粒子径が1μm以下であるMgO、Al2O3、SiO2のうち少なくとも2種類の粉体。【選択図】図5
CARBON-CONTAINING UNFIRED BRICK REFRACTORY
カーボン含有不焼成れんが耐火物
HINO YUTA (author) / MATSUNAGA HISAHIRO (author)
2017-05-18
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
/
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
/
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
UNFIRED BRICK REFRACTORY AND METHOD FOR PRODUCING UNFIRED BRICK REFRACTORY
European Patent Office | 2018
|