Why Mullite Bricks Are the Ideal Choice for High-Temperature Furnaces and Kilns

Mullite bricks are the most widely used materials in the production of high-temperature furnaces and kilns due to their excellent properties， which are as follows：

1.High strength and thermal conductivity. The mullite brick has high strength and thermal conductivity， which can ensure the safety and stability of the furnace operation.

2.Excellent chemical and physical stability. The mullite brick has good chemical and physical stability， which can avoid the separation and overflow of slag caused by high temperature during the calcination process.

3.Strong oxidation resistance. The mullite brick has strong oxidation resistance， which can prevent the oxidation and reduction of the mullite brick.

4.Easy installation and maintenance. The mullite brick can be easily installed and maintained， which can reduce the labor cost and time consumption.

5.Low cost. The mullite brick is relatively cheap， which can reduce the production cost of the high-temperature furnace and kiln.

However, when using mullite bricks in high-temperature furnaces and kilns， there are still some problems that need to be solved， which are as follows：

6.The calcination process of the mullite brick is relatively slow， which can lead to the production of large amount of slag， which is difficult to control and maintain.

7.The oxidation phenomenon may occur at high temperature during the calcination process， which can affect the quality of the corundum bricks.

8.The manufacturing process of the mullite brick is relatively complex， which will increase the production cost and time consumption.

In order to solve these problems, some new materials， such as yttria iron phosphate ceramic brick， lanthanum lead titanate-ceria block corundum bricks and iron lanthanum titanate corundum bricks， have been developed and put into practical use to improve the strength，radiation heat insulation performance，resistance to chemical attack，corrosion resistance，weldability and etc. compared with traditional mullite bricks，these materials can reduce production waste and technical outlay， and improve the production efficiency and economic efficiency.