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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