Corundum mullite medium lightweight bricks
Adopting imported plate corundum and high purity electrofused corundum as main raw materials, applying advanced ultra-micro powder adding technology, after mixing, drying, molding and firing in high temperature shuttle kiln. It is widely used in residual oil gasification furnace, ammonia second-stage conversion furnace, carbon black reactor and refractory kiln and other equipment. The external dimensions, physical and chemical indexes and service life of the products have all reached the requirements of customers.
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Corundum mullite medium lightweight bricks
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Product Introduction
Adopting imported plate corundum and high purity electrofused corundum as main raw materials, applying advanced ultra-micro powder adding technology, after mixing, drying, molding and firing in high temperature shuttle kiln. It is widely used in residual oil gasification furnace, ammonia second-stage conversion furnace, carbon black reactor and refractory kiln and other equipment. The external dimensions, physical and chemical indexes and service life of the products have all reached the requirements of customers.
| Item | Model 1500 | Model 1500 | Model 1600 |
| Maximum operating temperature ℃ | 1500 | 1550 | 1600 |
| Al2O3 % | ≥70 | ≥80 | ≥85 |
| SiO2 % | ≤28 | ≤15 | ≤13 |
| Fe2O3% | ≤0.5 | ≤0.5 | ≤0.3 |
| bulk density g/cm3 | 1.3—1.5 | 1.4—1.7 | 1.6—1.8 |
| Normal temperature compressive strength MPa | ≥8 | ≥8 | ≥10 |
| Starting temperature of load softening ℃(0.1MPa,0.6%) | ≥1500 | ≥1550 | ≥1600 |
| Change rate of refiring line % (1600℃×3h) | ±0.5 | ±0.5 | ±0.3 |
| thermal conductivity w/(m.k) ≤ | ≤0.6 | ≤0.7 | ≤0.8 |
| (average temperature 800℃） | |||
| Remarks | Long-term service temperatures are standardized for oxidizing atmospheres and intermittent kilns. | ||
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Address: Yangzhai Town Metallurgical Industrial Park, Guangshui City, Hubei Province
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