Refractoriness Under Load of Refractory Materials

The factors influencing the refractoriness under load of refractory materials, a key component of the high-temperature structural strength of refractory materials, are diverse and complex. The refractoriness under load varies significantly among various refractory products, primarily due to their unique chemical and mineral composition, crystal structure, phase ratios, and the viscosity of the liquid phase during melting. For example, clay bricks experience a wide temperature range from deformation to failure under load, while silica bricks experience a relatively narrow temperature range, reflecting the differences in high-temperature resistance between these materials.

To improve the refractoriness under load, precise control of the production process is necessary. The primary task is to purify the raw materials to reduce the adverse effects of impurities on the material’s high-temperature performance. Secondly, appropriately increasing the firing temperature can promote better crystal formation and growth, thereby improving the material’s structural stability. Furthermore, adding specific admixtures can improve the material’s crystal structure, which is also an effective way to increase the refractoriness under load. Furthermore, increasing the pressure during the molding process can result in a denser product, while increasing the content of coarse particles can help raise the material’s initial deformation temperature. These specialized regulatory measures, applied collectively to the refractory production process, aim to enhance its stability and durability in high-temperature and heavy-load environments.

High-temperature structural strength is a core metric in refractory performance evaluation, and its importance cannot be underestimated. In the extreme high-temperature and high-pressure environments of industrial production, insufficient structural strength of refractory materials can directly threaten the stability and safety of production equipment and may even cause serious production accidents. Therefore, assessing and improving the high-temperature structural strength of refractory materials through scientific methods and precise data is crucial to ensuring the continuity and safety of industrial production. This not only provides a solid foundation for the normal operation of enterprises but also lays a solid foundation for the sustainable development and technological advancement of the entire industrial sector.