Briefly describe the properties of refractory bricks

1. Compressive strength: the ability to withstand greater pressure (normal temperature);

2, load softening temperature: also called high temperature load starting deformation temperature, this parameter is very important, marking the high temperature resistance of refractory bricks;

3. 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 change occurs. If each expansion and contraction is the same, the linear change rate is defined as 0;

4. Bulk density: unit volume weight, high density of refractory bricks, indicating that the density is good, the strength may be high, but the thermal conductivity may be large;

5. Apparent porosity: No specific requirements are made, but as a manufacturer, the obvious pores must be strictly controlled.