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A platform for research: civil engineering, architecture and urbanism
Low-carbon magnesia carbon brick and preparation method thereof
The invention provides a low-carbon magnesia carbon brick and a preparation method thereof, and relates to the technical field of refractory materials. The low-carbon magnesia carbon brick provided by the invention is prepared from the following raw materials in percentage by mass: 60-70% of fused magnesia aggregate; 20%-30% of magnesia powder; 6%-10% of flaky graphite; 0.5%-2% of expanded graphite; 1%-3% of an antioxidant; 1%-4% of phenolic resin; the total mass fraction of the flaky graphite and the expanded graphite is less than 12%. In the invention, the volume of the expanded graphite is large, the expanded graphite is more fully filled in the magnesia carbon brick, a continuous carbon chain is easier to form, and the use amount of flaky graphite is reduced. According to the invention, the expanded graphite and the flaky graphite are matched for use, and part of the flaky graphite is replaced by the expanded graphite, so that the use amount of the flaky graphite in the conventional magnesia carbon brick and the total use amount of graphite in the magnesia carbon brick are reduced, and the magnesia carbon brick can be ensured to have good erosion resistance.
本发明提供了一种低碳镁碳砖及其制备方法，涉及耐火材料技术领域。本发明提供的低碳镁碳砖，以质量分数计，制备原料包括：电熔镁砂骨料60％～70％；镁砂粉20％～30％；鳞片状石墨6％～10％；膨胀石墨0.5％～2％；抗氧化剂1％～3％；酚醛树脂1％～4％；鳞片状石墨和膨胀石墨的总质量分数＜12％。在本发明中，膨胀石墨体积较大，在镁碳砖内部的填充更加充分，更易形成连续碳链，减少鳞片状石墨的用量。本发明将膨胀石墨和鳞片状石墨配合使用，以膨胀石墨代替部分鳞片状石墨，降低了常规碳镁碳砖中的鳞片状石墨用量以及镁碳砖中的石墨总用量，并且能够保证镁碳砖具有良好的抗侵蚀性能。
Low-carbon magnesia carbon brick and preparation method thereof
The invention provides a low-carbon magnesia carbon brick and a preparation method thereof, and relates to the technical field of refractory materials. The low-carbon magnesia carbon brick provided by the invention is prepared from the following raw materials in percentage by mass: 60-70% of fused magnesia aggregate; 20%-30% of magnesia powder; 6%-10% of flaky graphite; 0.5%-2% of expanded graphite; 1%-3% of an antioxidant; 1%-4% of phenolic resin; the total mass fraction of the flaky graphite and the expanded graphite is less than 12%. In the invention, the volume of the expanded graphite is large, the expanded graphite is more fully filled in the magnesia carbon brick, a continuous carbon chain is easier to form, and the use amount of flaky graphite is reduced. According to the invention, the expanded graphite and the flaky graphite are matched for use, and part of the flaky graphite is replaced by the expanded graphite, so that the use amount of the flaky graphite in the conventional magnesia carbon brick and the total use amount of graphite in the magnesia carbon brick are reduced, and the magnesia carbon brick can be ensured to have good erosion resistance.
本发明提供了一种低碳镁碳砖及其制备方法，涉及耐火材料技术领域。本发明提供的低碳镁碳砖，以质量分数计，制备原料包括：电熔镁砂骨料60％～70％；镁砂粉20％～30％；鳞片状石墨6％～10％；膨胀石墨0.5％～2％；抗氧化剂1％～3％；酚醛树脂1％～4％；鳞片状石墨和膨胀石墨的总质量分数＜12％。在本发明中，膨胀石墨体积较大，在镁碳砖内部的填充更加充分，更易形成连续碳链，减少鳞片状石墨的用量。本发明将膨胀石墨和鳞片状石墨配合使用，以膨胀石墨代替部分鳞片状石墨，降低了常规碳镁碳砖中的鳞片状石墨用量以及镁碳砖中的石墨总用量，并且能够保证镁碳砖具有良好的抗侵蚀性能。
Low-carbon magnesia carbon brick and preparation method thereof
一种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
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