The Excellent Performance of Fused Magnesia Bricks in High-Temperature Industries

In modern industrial processes, especially those operating in high-temperature environments, the demand for high-quality refractory materials is extremely strict. High temperatures, strong chemical corrosion, and mechanical shocks pose significant challenges to the performance and lifespan of refractory materials. Fused magnesia bricks have emerged as a remarkable solution to meet these challenges, demonstrating their excellent performance in multiple aspects.

Raw Materials and Manufacturing Processes

Fused magnesia bricks are mainly made from fused magnesia. This special material is obtained through a series of complex processes including high-temperature melting, ensuring its high purity and stable crystal structure. After being processed into appropriate particle sizes, these materials are carefully proportioned, then subjected to high-pressure molding and high-temperature sintering. This meticulous manufacturing process guarantees the high quality and outstanding performance of fused magnesia bricks.

Performance Comparison with Common Refractory Materials

When compared with common refractory materials, fused magnesia bricks show significant advantages in various aspects:

• Alkali Resistance: In alkaline slag environments, fused magnesia bricks exhibit excellent alkali resistance. Laboratory tests show that after 100 hours of immersion in alkaline slag, the corrosion rate of fused magnesia bricks is only about 5%, while that of common refractory bricks can reach 20% or more.
• Refractoriness: Fused magnesia bricks have a high melting point, typically above 2800°C. In contrast, most common refractory materials have a melting point in the range of 1700 - 2200°C. This high refractoriness allows fused magnesia bricks to maintain stable performance under extremely high-temperature conditions.
• Thermal Stability: Excellent thermal stability is another important advantage of fused magnesia bricks. They can withstand rapid temperature changes without significant cracking or damage. After 10 cycles of rapid heating from room temperature to 1600°C and then rapid cooling, the intact rate of fused magnesia bricks is over 90%, while many common refractory materials may experience severe cracking or even fragmentation.

Industrial Applications and Advantages

Fused magnesia bricks are widely used in various high-temperature industries such as steel smelting and glass manufacturing. In steel plants, the lining of steel converters made of fused magnesia bricks can effectively withstand the erosion of high-temperature molten steel and slag, significantly extending the service life of the converter. The service life of steel converters using fused magnesia bricks can reach more than 5000 heats, while those with common refractory linings usually need to be repaired or replaced after 2000 - 3000 heats. In glass factories, fused magnesia bricks can resist the erosion of glass liquid and high-temperature flue gases, ensuring the stable operation of glass melting furnaces and improving the quality of glass products.

Economic Benefits

The outstanding corrosion resistance and long service life of fused magnesia bricks bring significant economic benefits to enterprises. By reducing the frequency of equipment maintenance and replacement, the operation cost of enterprises is greatly reduced. In addition, the stable performance of fused magnesia bricks can also improve production efficiency, reduce production interruptions, and increase the overall economic benefits of enterprises.

In conclusion, fused magnesia bricks are an ideal choice for solving high-temperature problems and improving production efficiency. With their excellent performance and obvious economic benefits, they have become the first choice for many high-temperature industries. When choosing refractory materials, we strongly recommend that globally minded procurement decision-makers prioritize fused magnesia bricks.