1. Main component: One or several high melting point refractory oxides or non-oxides in refractory materials. The fused magnesia brick is the main body of the refractory product and directly determines the performance of the refractory product. The nature and quantity of the heat storage bricks play a decisive role in the performance of the refractory material.

Refractory materials can be divided into three categories according to their main components.

The significance of dividing the refractory according to the main component is that the chemistry of the refractory material can be understood, and whether there is a chemical interaction between them and between the refractory material and the contact material during use.

2, additives

The amount of addition is very small, even minimal; to make up for the deficiency of the main component in terms of performance, production performance or workability, it can obviously improve certain functions or characteristics of the refractory product, and the main performance of the product is not Serious impact. Usually there are binders, mineralizers, stabilizers, sintering agents, water reducing agents, water hydrating agents, antioxidants, accelerators and expansion agents. . Refractory materials are generally heterogeneous bodies composed of a variety of different chemical compositions and mineral compositions. Its various properties depend not only on its chemical composition, but also on its phase composition, distribution and characteristics of the phases, ie on the chemical and mineral composition of the product. The components are classified into a main component, an impurity component, and an additive according to the chemical composition of the refractory material.

Refractory materials are generally heterogeneous bodies composed of a variety of different chemical compositions and mineral compositions. Its various properties depend not only on its chemical composition, but also on its phase composition, distribution and characteristics of the phases, ie on the chemical and mineral composition of the product. The components are classified into a main component, an impurity component, and an additive according to the chemical composition of the refractory material.