Shrinkage rate of refractory bricks

The use of refractory bricks is relatively common and can be used in many fields, whether it is involved in building walls or kiln construction. When using it, we have very high quality requirements. Yes, sometimes some data is used to test the quality and other properties of the product, including its shrinkage rate. So, what is its shrinkage rate? Let's introduce it below.

1. Drying shrinkage: When the refractory bricks are drying, the evaporation of water will cause the particles in the bricks to move closer to each other, thereby forming a shrinkage phenomenon.

2. Firing shrinkage: the physical and chemical reactions of bricks and fusible impurities generate liquid, the dried bricks are fired, and then filled between the particles to shrink the green body.

3. Requirements: The linear shrinkage rate of the raw materials of the product is small, and the bricks with excessive shrinkage should not be dried too quickly or quickly.