The GB/T 7320-2008 standard specifies the test method for thermal expansion of refractory materials. The standard elaborates the operation process, including the selection of test equipment, sample preparation, and accurate measurement of refractory size changes during heating. Through this standard, the thermal expansion characteristics of refractory materials at different temperatures can be obtained. This helps manufacturers evaluate the suitability of products in temperature fluctuation environments, and provides a basis for rational material selection in high temperature fields such as industrial kilns and metallurgy. Ensure that refractory materials maintain structural stability under thermal cycling conditions and prolong the service life of equipment.
| Status | Abolish |
|---|---|
| CCS | Q40 | ICS | 81.080 |
| Release Date | 2008-06-03 00:00:00 | Implementation Date | 2008-12-01 00:00:00 |