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Refractory brick for high-temperature annealing furnace and manufacturing method thereof
The invention discloses a refractory brick for a high-temperature annealing furnace and a manufacturing method of the refractory brick. 15-35% of silicon carbide particles with the particle size of 1-3mm, 20-25% of silicon carbide particles with the particle size of less than or equal to 1mm, 20-25% of silicon carbide particles with the particle size of less than or equal to 0.088 mm, 5-15% of silicon carbide fine powder with the particle size of less than 0.2 mu m, 5-10% of activated aluminum oxide with the particle size of less than 0.7 mu m, 0-20% of white corundum particles with the particle size of 1-3mm, and 0-12% of white corundum fine powder with the particle size of less than or equal to 0.088 mm; the binding agent accounts for 5-7% of the mass of the raw materials. The refractory brick disclosed by the invention has excellent chemical stability, relatively high heat conductivity coefficient, good thermal shock resistance stability, relatively high high-temperature breaking strength and relatively low high-temperature creep property.
本发明揭示了一种高温退火炉用耐火砖及其制造方法，耐火砖包括如下质量百分比的原料，1‑3mm粒径的碳化硅颗粒15‑35％、≤1mm粒径的碳化硅颗粒20‑25％、≤0.088mm粒径的碳化硅颗粒20‑25％、＜0.2μm粒径的碳化硅细粉5‑15％、＜0.7μm粒径的活性氧化铝5‑10％、1‑3mm粒径的白刚玉颗粒0‑20％、以及≤0.088mm粒径的白刚玉细粉0‑12％；还包括原料质量的5‑7％的结合剂。本发明实现了耐火砖具备优异的化学稳定性、较高的导热系数、良好的抗热震稳定性、较高的高温抗折强度、较低的高温蠕变性。
Refractory brick for high-temperature annealing furnace and manufacturing method thereof
The invention discloses a refractory brick for a high-temperature annealing furnace and a manufacturing method of the refractory brick. 15-35% of silicon carbide particles with the particle size of 1-3mm, 20-25% of silicon carbide particles with the particle size of less than or equal to 1mm, 20-25% of silicon carbide particles with the particle size of less than or equal to 0.088 mm, 5-15% of silicon carbide fine powder with the particle size of less than 0.2 mu m, 5-10% of activated aluminum oxide with the particle size of less than 0.7 mu m, 0-20% of white corundum particles with the particle size of 1-3mm, and 0-12% of white corundum fine powder with the particle size of less than or equal to 0.088 mm; the binding agent accounts for 5-7% of the mass of the raw materials. The refractory brick disclosed by the invention has excellent chemical stability, relatively high heat conductivity coefficient, good thermal shock resistance stability, relatively high high-temperature breaking strength and relatively low high-temperature creep property.
本发明揭示了一种高温退火炉用耐火砖及其制造方法，耐火砖包括如下质量百分比的原料，1‑3mm粒径的碳化硅颗粒15‑35％、≤1mm粒径的碳化硅颗粒20‑25％、≤0.088mm粒径的碳化硅颗粒20‑25％、＜0.2μm粒径的碳化硅细粉5‑15％、＜0.7μm粒径的活性氧化铝5‑10％、1‑3mm粒径的白刚玉颗粒0‑20％、以及≤0.088mm粒径的白刚玉细粉0‑12％；还包括原料质量的5‑7％的结合剂。本发明实现了耐火砖具备优异的化学稳定性、较高的导热系数、良好的抗热震稳定性、较高的高温抗折强度、较低的高温蠕变性。
Refractory brick for high-temperature annealing furnace and manufacturing method thereof
高温退火炉用耐火砖及其制造方法
ZHANG SHIJIE (author) / ZHANG HUABING (author) / FAN CHANGGANG (author) / LIU YIN (author) / CHENG ZHAOGUO (author) / LIU DESHENG (author)
2023-01-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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