What is castable refractory mass?

Castable Refractories is a type of solid material resistant to high heat and chemicals that can be cast and shaped. This refractory mass is prepared in the form of paste or powder, and by adding water or special solvents, they become a pourable mixture. After pouring and applying pressure and heat, the castable refractory mass becomes solid and resistant to heat and pressure and is used in various industrial sectors, such as furnaces, crucibles, blowers and other thermal equipment.

In general, castable mass is a material compatible with high thermal conditions and chemical substances, which is prepared in the form of paste or powder.These masses usually include a mixture of heat-resistant minerals, advanced materials and composite materials, which, in order to increase their strength and efficiency, become a pourable mixture by adding water or special solvents.

Castable masses, which are also known as refractory concrete, are classified into two main groups: light insulating masses and heavy refractory masses. These masses have a hydraulic connection and are divided into four groups of low cement (LCC), medium cement (MCC), ultra-low cement (ULCC) and no cement (NCC).

Since this pouring mass is like concrete, it is also called “refractory concrete”. Various elements such as silica, alumina, magnesite and composite materials are used to create the desired properties in the castable refractory mass of concrete such as heat resistance, heat shock resistance and suitable mechanical properties.Pourable mass includes minerals and textural materials. which is mixed dry and then used with water or a solvent such as water to form a sticky state. By drying and combining the materials, a cohesive structure is created, which has high thermal resistance and fire resistance.

Application of castable mass in refractory industries

Castable refractory mass is a material resistant to high heat, which is used in many refractory industries. Due to its special properties, this substance is used as a protective and insulating material against heat and thermal shock.

Industrial furnaces and water heaters: In these industries, castable refractory mass is used as an insulating layer that protects the internal parts of the furnace or water heater against high temperatures and extreme heat. This mass provides better efficiency and performance for furnaces and water heaters due to its thermal insulation properties and resistance to melting and corrosion.Metal melting furnaces: In the steelmaking and metal processing industry, cast mass is used for pouring and melting metals. This mass maintains a constant temperature inside the furnace and protects metals at high temperatures and in conditions that cause other materials to melt.

Cement and glass industries: In the production of cement and glass, refractory castable mass is used as a basic element for the construction of furnaces and other melting devices. Due to its thermal insulation properties and resistance to melting and corrosion, this mass is able to maintain a constant temperature inside the furnace and protect the structure of the furnace and parts.

In summary, castable mass and refractory concrete are used in industries that require resistance to high heat and protection of parts against thermal shock.

Castable alumina mass

Alumina castable mass is one of the types of refractory mass that consists of alumina materials.This mass usually contains materials such as alumina (Al2O3), mullite (Al2O3·SiO2) and other related additives. The refractory property of alumina mass makes it suitable for use in conditions with high temperatures and under the influence of strong heat.

Alumina casting mass is widely used in refractory and thermal industries due to its special characteristics. This mass can have high heat resistance, excellent thermal insulation properties, corrosion resistance, and suitable formability. Therefore, in sectors such as steel industries, glass industries, melting furnaces, ceramic firing, industrial furnaces and other cases, alumina slag is used as a refractory material