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What are the properties of refractory brick ?

Date:2017-05-10 17:52 From:Zhengzhou Sunrise Refractory Author:admin
The properties of refractory brick:
1. Chemical composition: the main ingredients determine the quality and characteristics of magnesia chrome brick.
2. The bulk density:  per unit volume weight, density is large, indicating the density is good, the strength may be high, but the thermal conductivity may be large.
3. The porosity: no specific requirements, but as a manufacturer must strictly control the hole.
4. Load softening temperature: also known as high temperature load starting deformation temperature, this parameter is very important, marking the material resistance to high temperature.

5. Thermal shock resistance: resistance to the rapid changes in temperature and without the ability to damage.
6. Compressive strength: to withstand (room temperature) the maximum pressure capacity.
7. Bending strength: the ability to withstand shear pressure.
8. The rate of  linear change: also called the re-burning line change or called the residual line change, that each time the volume of expansion and contraction changes under the same temperature, if each expansion contraction is same, we define such a  linear change is 0.


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