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METHOD FOR EVALUATING PEELING RESISTANCE OF ALUMINA-MAGNESIA QUALITY CASTABLE REFRACTORY
To provide a method for evaluating peeling resistance whether or not an alumina-magnesia quality castable refractory is peeled and worn during use.SOLUTION: A method for evaluating peeling resistance of an alumina-magnesia quality castable refractory in which the castable refractory has a residual linear change ratio after having been fired at a temperature of 1,400°C or higher for 3 or more hours of 0% or more, includes: a step of measuring a coefficient (%) of linear thermal expansion at 1,400°C, 1,500°C and 1,600°C; a step of determining whether or not the coefficient (%) of linear thermal expansion at 1,500°C is equal to or higher than the coefficient (%) of linear thermal expansion at 1,400°C; and a step of determining peeling resistance of an alumina-magnesia quality castable refractory to be evaluated on the basis of a value obtained by subtracting a value of the coefficient (%) of linear thermal expansion at 1,600°C from the coefficient (%) of linear thermal expansion at 1,400.SELECTED DRAWING: Figure 5
【課題】アルミナ−マグネシア質キャスタブル耐火物が使用中に剥離損耗するか否かの耐剥離性を評価する方法を提供する。【解決手段】アルミナ−マグネシア質キャスタブル耐火物の耐剥離性の評価方法であって、前記キャスタブル耐火物は、１４００℃以上の温度で３時間以上焼成後の残存線変化率が０％以上であって、１４００℃、１５００℃及び１６００℃における線熱膨張率（％）を測定する工程と、１５００℃における前記線熱膨張率（％）が、１４００℃における前記線熱膨張率（％）以上か否か判定する工程と、１４００℃における前記線熱膨張率（％）から、１６００℃における前記線熱膨張率（％）を差し引いた値に基づいて評価対象のアルミナ−マグネシア質キャスタブル耐火物の耐剥離性を判断する工程とを含むことを特徴とする、アルミナ−マグネシア質キャスタブル耐火物の耐剥離性の評価方法。【選択図】図５
METHOD FOR EVALUATING PEELING RESISTANCE OF ALUMINA-MAGNESIA QUALITY CASTABLE REFRACTORY
To provide a method for evaluating peeling resistance whether or not an alumina-magnesia quality castable refractory is peeled and worn during use.SOLUTION: A method for evaluating peeling resistance of an alumina-magnesia quality castable refractory in which the castable refractory has a residual linear change ratio after having been fired at a temperature of 1,400°C or higher for 3 or more hours of 0% or more, includes: a step of measuring a coefficient (%) of linear thermal expansion at 1,400°C, 1,500°C and 1,600°C; a step of determining whether or not the coefficient (%) of linear thermal expansion at 1,500°C is equal to or higher than the coefficient (%) of linear thermal expansion at 1,400°C; and a step of determining peeling resistance of an alumina-magnesia quality castable refractory to be evaluated on the basis of a value obtained by subtracting a value of the coefficient (%) of linear thermal expansion at 1,600°C from the coefficient (%) of linear thermal expansion at 1,400.SELECTED DRAWING: Figure 5
【課題】アルミナ−マグネシア質キャスタブル耐火物が使用中に剥離損耗するか否かの耐剥離性を評価する方法を提供する。【解決手段】アルミナ−マグネシア質キャスタブル耐火物の耐剥離性の評価方法であって、前記キャスタブル耐火物は、１４００℃以上の温度で３時間以上焼成後の残存線変化率が０％以上であって、１４００℃、１５００℃及び１６００℃における線熱膨張率（％）を測定する工程と、１５００℃における前記線熱膨張率（％）が、１４００℃における前記線熱膨張率（％）以上か否か判定する工程と、１４００℃における前記線熱膨張率（％）から、１６００℃における前記線熱膨張率（％）を差し引いた値に基づいて評価対象のアルミナ−マグネシア質キャスタブル耐火物の耐剥離性を判断する工程とを含むことを特徴とする、アルミナ−マグネシア質キャスタブル耐火物の耐剥離性の評価方法。【選択図】図５
METHOD FOR EVALUATING PEELING RESISTANCE OF ALUMINA-MAGNESIA QUALITY CASTABLE REFRACTORY
アルミナ−マグネシア質キャスタブル耐火物の耐剥離性の評価方法
MATSUI TSUYOSHI (author)
2020-04-16
Patent
Electronic Resource
Japanese
METHOD FOR EVALUATING PEELING RESISTANCE OF ALUMINA-MAGNESIA QUALITY CASTABLE REFRACTORY
| European Patent Office | 2020
METHOD FOR EVALUATING PEELING RESISTANCE OF ALUMINA-MAGNESIA QUALITY CASTABLE REFRACTORY
| European Patent Office | 2020
METHOD FOR EVALUATING PEELING RESISTANCE OF ALUMINA-MAGNESIA QUALITY CASTABLE REFRACTORY
| European Patent Office | 2020