Introduction to the properties of refractory bricks

Refractory bricks are referred to as fire bricks. Refractory materials fired from refractory clay or other refractory materials. Light yellow or brownish. It is mainly used for making smelting furnaces and can withstand high temperatures of 1,580 ° C to 1,770 ° C. Also called fire brick.
 
Refractory brick's own properties

 
1. Chemical composition: The main ingredients determine the quality and characteristics of the refractory
2. Bulk density: weight per unit volume, high density, indicating good compactness and strength may be high, but the thermal conductivity may be large
3. Apparent porosity: There are no specific requirements, but the manufacturer must strictly control the apparent porosity.
4. Load softening temperature: It is also called the temperature at which the high-temperature load starts to deform. This parameter is very important, indicating that the material is resistant to high temperatures.
5. Thermal shock resistance: the ability to resist rapid temperature changes without being destroyed
6, compressive strength: the ability to withstand the maximum pressure (normal temperature)
7, flexural strength: ability to withstand shear pressure
8. Linear change rate: also called reburning line change or residual line change, which refers to the change in volume expansion and contraction every time the same temperature changes. If each expansion and contraction is the same, we define such a linear change rate to be 0.
 
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