It is reported that there are several reasons for cracking:
(1) Temperature difference stress:
When the kiln is baked, a certain temperature difference occurs within the refractory material, generating stress.
(2) Crystal transformation stress:
Refractory materials in the process of heating up the crystalline transformation will occur, if the crystalline change is too fast, the resulting stress is too large, it will also produce the cracking of refractory materials;
(3) Mechanical stress:
The mechanical load acting on the refractory material is too large for the refractory material to produce inelastic deformation and lead to damage.
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