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ALUMINA-MAGNESIA BASED CASTABLE REFRACTORY
To provide an alumina-magnesia based castable refractory having corrosion resistance as good as that of conventional ones and excellent durability, by solving the problem of peeling and wear occurring on a crack as a starting point.SOLUTION: The alumina-magnesia based castable refractory is made from a refractory raw material comprising an alumina based raw material, a magnesia based raw material, alumina cement, a calcium aluminosilicate compound, and inevitable impurities, with the calcium aluminosilicate compound having a melting point of lower than 1600°C, and with its primary crystal consisting exclusively of gehlenite (2CaO-AlO-SiO), which crystal is formed upon solidifying the molten compound.SELECTED DRAWING: Figure 3
【課題】従来と同程度の耐食性を有しつつ、亀裂を起点とした剥離損耗の課題を解消し耐用性に優れたアルミナ−マグネシア質キャスタブル耐火物を提供する。【解決手段】耐火原料が、アルミナ質原料、マグネシア質原料、アルミナセメント、カルシウムアルミノケイ酸塩化合物、及び不可避不純物からなるアルミナ−マグネシア質キャスタブル耐火物であって、前記カルシウムアルミノケイ酸塩化合物は、融点が１６００℃未満であり且つ溶融凝固時の初晶がゲーレナイト（２ＣａＯ・Ａｌ2Ｏ3・ＳｉＯ2）のみである、アルミナ−マグネシア質キャスタブル耐火物。【選択図】図３
ALUMINA-MAGNESIA BASED CASTABLE REFRACTORY
To provide an alumina-magnesia based castable refractory having corrosion resistance as good as that of conventional ones and excellent durability, by solving the problem of peeling and wear occurring on a crack as a starting point.SOLUTION: The alumina-magnesia based castable refractory is made from a refractory raw material comprising an alumina based raw material, a magnesia based raw material, alumina cement, a calcium aluminosilicate compound, and inevitable impurities, with the calcium aluminosilicate compound having a melting point of lower than 1600°C, and with its primary crystal consisting exclusively of gehlenite (2CaO-AlO-SiO), which crystal is formed upon solidifying the molten compound.SELECTED DRAWING: Figure 3
【課題】従来と同程度の耐食性を有しつつ、亀裂を起点とした剥離損耗の課題を解消し耐用性に優れたアルミナ−マグネシア質キャスタブル耐火物を提供する。【解決手段】耐火原料が、アルミナ質原料、マグネシア質原料、アルミナセメント、カルシウムアルミノケイ酸塩化合物、及び不可避不純物からなるアルミナ−マグネシア質キャスタブル耐火物であって、前記カルシウムアルミノケイ酸塩化合物は、融点が１６００℃未満であり且つ溶融凝固時の初晶がゲーレナイト（２ＣａＯ・Ａｌ2Ｏ3・ＳｉＯ2）のみである、アルミナ−マグネシア質キャスタブル耐火物。【選択図】図３
ALUMINA-MAGNESIA BASED CASTABLE REFRACTORY
アルミナ−マグネシア質キャスタブル耐火物
MATSUI TSUYOSHI (author)
2019-01-17
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
/
B22D
CASTING OF METALS
,
Gießen von Metallen
/
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
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