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Low-carbon magnesia spinel sliding plate brick and preparation method thereof
The invention discloses a low-carbon magnesia spinel sliding plate brick and a preparation method thereof, and belongs to the technical field of refractory materials, the sliding plate brick comprises the following components in percentage by mass: 60-65% of granular aggregate and 35-40% of co-grinding powder, the total percentage is 100%, and an additional binding agent: 3-4% of phenolic resin. Wherein 1%-5% of nano TiO2 and 0.5% of Ni powder are introduced into co-grinding powder, on one hand, pores of a matrix are filled, sintering and densification of the matrix are promoted, and the strength and oxidation resistance of the material are improved; on the other hand, high-temperature reinforced phase aluminum titanate and magnesium titanate are generated in a high-temperature state, so that the high-temperature mechanical property of the material is improved; the transition metal Ni powder is introduced, graphitization after phenolic resin carbonization is promoted in a high-temperature state, the thermal shock resistance is improved, and the average service life of the prepared low-carbon magnesia spinel sliding plate brick is prolonged from 1.5 times to 3 times or above.
本发明公开了一种低碳镁尖晶石滑板砖及制备方法，属于耐火材料技术领域，该滑板砖的组成按质量百分比配比为：60％～65％的颗粒骨料和35％～40％的共磨粉，总百分比为100％，外加结合剂：酚醛树脂3％～4％。其中共磨粉中引入1％～5％的纳米TiO2和0.5％的Ni粉，一方面填充了基质的气孔，促进基质烧结、致密化，提高了材料的强度和抗氧化性能；另一方面，高温状态下生成高温增强相钛酸铝和钛酸镁，提高了材料的高温力学性能；引入过渡金属Ni粉，高温状态下促进酚醛树脂碳化后的石墨化，提高抗热震性能，制备的低碳镁尖晶石滑板砖的平均寿命从原来的1.5次提高到3次以上。
Low-carbon magnesia spinel sliding plate brick and preparation method thereof
The invention discloses a low-carbon magnesia spinel sliding plate brick and a preparation method thereof, and belongs to the technical field of refractory materials, the sliding plate brick comprises the following components in percentage by mass: 60-65% of granular aggregate and 35-40% of co-grinding powder, the total percentage is 100%, and an additional binding agent: 3-4% of phenolic resin. Wherein 1%-5% of nano TiO2 and 0.5% of Ni powder are introduced into co-grinding powder, on one hand, pores of a matrix are filled, sintering and densification of the matrix are promoted, and the strength and oxidation resistance of the material are improved; on the other hand, high-temperature reinforced phase aluminum titanate and magnesium titanate are generated in a high-temperature state, so that the high-temperature mechanical property of the material is improved; the transition metal Ni powder is introduced, graphitization after phenolic resin carbonization is promoted in a high-temperature state, the thermal shock resistance is improved, and the average service life of the prepared low-carbon magnesia spinel sliding plate brick is prolonged from 1.5 times to 3 times or above.
本发明公开了一种低碳镁尖晶石滑板砖及制备方法，属于耐火材料技术领域，该滑板砖的组成按质量百分比配比为：60％～65％的颗粒骨料和35％～40％的共磨粉，总百分比为100％，外加结合剂：酚醛树脂3％～4％。其中共磨粉中引入1％～5％的纳米TiO2和0.5％的Ni粉，一方面填充了基质的气孔，促进基质烧结、致密化，提高了材料的强度和抗氧化性能；另一方面，高温状态下生成高温增强相钛酸铝和钛酸镁，提高了材料的高温力学性能；引入过渡金属Ni粉，高温状态下促进酚醛树脂碳化后的石墨化，提高抗热震性能，制备的低碳镁尖晶石滑板砖的平均寿命从原来的1.5次提高到3次以上。
Low-carbon magnesia spinel sliding plate brick and preparation method thereof
一种低碳镁尖晶石滑板砖及制备方法
ZHANG YUANHONG (author) / YU XIPING (author) / XU KUNBO (author) / JI KAI (author) / ZHOU LIANG (author) / WANG PEIYONG (author) / FANG YANZHEN (author)
2022-02-18
Patent
Electronic Resource
Chinese
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