company news about Some function of silica brick in the oven

The key process in the oven, silica brick maximum expansion occurs between 100 ~ 300 ℃, the thermal stability of silica brick determine good or bad is the true density, true density size is identified as one important indicator of its quartz transformation. In silica brick, the true density of the smallest scale quartz crystal, small linear expansion coefficient, better thermal stability than the cristobalite and quartz, strong slag resistance, thermal conductivity, high load softening temperature, volume quartz most stable form when the working temperature is below 600 ~ 700 ℃, the volume of firebrick varies greatly, poor performance of the anti-thermal shock, thermal stability is not good. If the coke oven at this temperature long-term work, it is very easy to break down.