Refractory castables can be divided into ordinary refractory castables, high-grade refractory castables and special-grade refractory castables according to their refractory degree.
High alumina refractory castable is an unshaped bulk material made of high alumina bauxite as the main refractory aggregate, adding additives, binders and other materials, and mixing it.
The quality of high-aluminum refractory castables largely depends on the composition and properties of the refractory raw materials used. The full mixing of refractory raw materials with additives and binders, and the properties produced at high temperatures, also have an impact on the refractory degree of high-aluminum refractory castables. .
In terms of materials, the refractory resistance of high-aluminum refractory products is generally higher than that of clay refractory products. Generally, the refractory resistance of high-aluminum refractory products is around 1450°C. The refractory resistance of general high-aluminum refractory castables is 1450°C. High-aluminum refractory castables have different high-temperature properties, and their refractoriness also fluctuates within a certain range. The refractory range of high-aluminum refractory castables is 1400℃-1560℃.
When many customers purchase high-aluminum refractory castables, they will ask about the refractory degree of the high-aluminum refractory castables. In fact, the refractory degree is not closely related to the high-temperature performance of the refractory castables used in the kiln lining. High-aluminum refractory castables More information to refer to when purchasing materials is chemical composition content, impurity content, density, line changes after burning and other physical and chemical indicators. Through the comprehensive reference of these projects, it can be determined whether high-aluminum refractory castables can be used in high-temperature kilns.
When purchasing high-aluminum refractory castables, you not only need to understand the refractory degree, but also need to understand more physical and chemical index items to better choose high-quality refractory high-aluminum castables.
