Composition and Characteristics of Clay Refractory Bricks

Clay refractory bricks are a common type of refractory material with good fire resistance, corrosion resistance, and mechanical strength. They are widely used in various high-temperature environments in industrial equipment, furnaces, and buildings.

Material composition and characteristics of clay refractory bricks

The main components of clay refractory bricks are clay and kaolin, and a certain proportion of auxiliary materials such as quartz sand, bauxite, and coal gangue are usually added. The content of clay is usually between 50% and 70%, while the content of kaolin is between 10% and 30%. Clay refractory bricks have the following characteristics:

1. Good fire resistance: Clay refractory bricks have good high-temperature resistance, usually able to withstand temperatures above 1000℃, and some can even reach temperatures above 1500℃.

2. Strong corrosion resistance: Clay and kaolin in clay refractory brick materials contain high levels of silicates and aluminates, which can resist various acids, alkalis, salt, and other chemical corrosion. Therefore, they are widely used in fields such as chemical engineering, metallurgy, and power.

3. Good wear resistance: Clay refractory bricks have high hardness and density, and their surface is not easily worn, so they can maintain surface smoothness and mechanical strength for a long time at high temperatures.

4. Good insulation performance: Clay refractory bricks often contain some insulation materials, such as expanded perlite, expanded vermiculite, etc. These materials can improve the insulation performance of clay refractory bricks, making them have excellent insulation performance in high-temperature environments.

5. Good processing performance: The manufacturing process of clay refractory bricks is relatively simple, the materials are easy to process and form, and the cost is low.