Kiselkarbidkorn

Termisk konduktivitet hos kiselkarbidkornprodukter minskar kraftigt med ökningen av lerinnehållet . till exempel, när lera ökar från 2%till 10%, kommer värmeledningsförmågan att minska med 23-29%.}

The thermal stability of silicon carbide grains products is very high. It takes about 10 cold water cycles before cracks begin to appear, and more than 30 cycles before the weight loss is 20%. The porosity of the product is generally very high, about 25~30%, because the blank formed by the silicon carbide particles has a large porosity. Therefore, the air permeability Produktens koefficient är också mycket hög .

The heat resistance of silicon carbide grains products. The ability of silicon carbide to withstand repeated heating in an oxidizing medium without bubbling and slagging is called heat resistance. It is expressed by the temperature at which bubbling and slagging occur. After three or four repeated heating, its heat resistance can be accurately bestämd . driftstemperaturen för kiselkarbidkornprodukter bör vara 50-100 grad lägre än värmemotståndet .