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A platform for research: civil engineering, architecture and urbanism
Ultralow-carbon magnesia carbon brick and preparation method thereof
The invention provides an ultralow-carbon magnesia carbon brick and a preparation method thereof, and relates to the technical field of refractory materials. The ultralow-carbon magnesia carbon brick is prepared from the following raw materials: 60-70% of fused magnesia aggregate; 20%-30% of magnesia powder; 1%-3% of an antioxidant; 1.0%-2.0% of expanded graphite; 0.5%-1.0% of carbon-containing resin powder; 0.5%-1.0% of nano carbon black; and 1%-4% of liquid phenolic resin. According to the invention, the volume of the expanded graphite is large, the expanded graphite can be filled in the magnesia carbon brick more fully, a continuous carbon chain can be formed more easily, and the usage amount of graphite is reduced; the nano carbon black is good in dispersity and can be tightly combined with other raw materials in a magnesia carbon brick matrix, so that the matrix is prevented from being wetted by slag, and the erosion resistance of the magnesia carbon brick is improved; the carbon-containing resin powder can soften and seal pores in a matrix in a high-temperature state, so that the compactness of the magnesia carbon brick is improved, and the strength, the high-temperature breaking strength and the erosion resistance of the magnesia carbon brick are further improved.
本发明提供了一种超低碳镁碳砖及其制备方法，涉及耐火材料技术领域。本发明所述超低碳镁碳砖的制备原料包括：电熔镁砂骨料60％～70％；镁砂粉20％～30％；抗氧化剂1％～3％；膨胀石墨1.0％～2.0％；含碳树脂粉0.5％～1.0％；纳米炭黑0.5％～1.0％；液态酚醛树脂1％～4％。在本发明中，膨胀石墨体积较大，在镁碳砖内部的填充更充分，更易形成连续碳链，减少石墨的用量；纳米炭黑的分散性好，能够与镁碳砖基质中的其他原料紧密结合，防止基质被熔渣润湿，提高镁碳砖的抗侵蚀性能；含碳树脂粉在高温状态下能够软化，封闭基质中的气孔，提高镁碳砖的致密性，进一步提高镁碳砖的强度、高温抗折强度以及抗侵蚀性。
Ultralow-carbon magnesia carbon brick and preparation method thereof
The invention provides an ultralow-carbon magnesia carbon brick and a preparation method thereof, and relates to the technical field of refractory materials. The ultralow-carbon magnesia carbon brick is prepared from the following raw materials: 60-70% of fused magnesia aggregate; 20%-30% of magnesia powder; 1%-3% of an antioxidant; 1.0%-2.0% of expanded graphite; 0.5%-1.0% of carbon-containing resin powder; 0.5%-1.0% of nano carbon black; and 1%-4% of liquid phenolic resin. According to the invention, the volume of the expanded graphite is large, the expanded graphite can be filled in the magnesia carbon brick more fully, a continuous carbon chain can be formed more easily, and the usage amount of graphite is reduced; the nano carbon black is good in dispersity and can be tightly combined with other raw materials in a magnesia carbon brick matrix, so that the matrix is prevented from being wetted by slag, and the erosion resistance of the magnesia carbon brick is improved; the carbon-containing resin powder can soften and seal pores in a matrix in a high-temperature state, so that the compactness of the magnesia carbon brick is improved, and the strength, the high-temperature breaking strength and the erosion resistance of the magnesia carbon brick are further improved.
本发明提供了一种超低碳镁碳砖及其制备方法，涉及耐火材料技术领域。本发明所述超低碳镁碳砖的制备原料包括：电熔镁砂骨料60％～70％；镁砂粉20％～30％；抗氧化剂1％～3％；膨胀石墨1.0％～2.0％；含碳树脂粉0.5％～1.0％；纳米炭黑0.5％～1.0％；液态酚醛树脂1％～4％。在本发明中，膨胀石墨体积较大，在镁碳砖内部的填充更充分，更易形成连续碳链，减少石墨的用量；纳米炭黑的分散性好，能够与镁碳砖基质中的其他原料紧密结合，防止基质被熔渣润湿，提高镁碳砖的抗侵蚀性能；含碳树脂粉在高温状态下能够软化，封闭基质中的气孔，提高镁碳砖的致密性，进一步提高镁碳砖的强度、高温抗折强度以及抗侵蚀性。
Ultralow-carbon magnesia carbon brick and preparation method thereof
一种超低碳镁碳砖及其制备方法
CHANG SHAOGANG (author) / JIN ZHAOZHEN (author) / WANG LIN (author) / LEE JUN-CHUL (author)
2023-12-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Ultralow-carbon magnesia carbon brick with excellent performance, and preparation method thereof
| European Patent Office | 2020
| European Patent Office | 2020
| European Patent Office | 2020