There are many types of lightweight insulation bricks, and there are also many types of refractory fiberboards. The effect depends on the materials used in the working layer to compare whether it is better to use lightweight bricks or refractory fiber boards.
Lightweight insulation bricks are divided into clay, high alumina, mullite, alumina hollow spheroids, etc.; refractory fiberboards include PVC, asbestos, aluminum silicate, calcium silicate, ceramics, nanometers, etc., all based on different temperatures And choose to use.
If the working layer uses refractory bricks, choose fiber series insulation; if the working layer is made of refractory castables, choose lightweight brick series as the insulation layer. Because if the working layer is made of refractory castables and fiber materials are used for insulation, the insulation effect will be compromised. Refractory castables have a moisture discharge process, and the discharged moisture can easily penetrate into the fiber materials, causing the fiber board's insulation effect to decrease.
But if the working layer uses refractory lightweight insulation bricks, because refractory bricks are products sintered at high temperatures, and the insulation layer uses fiber materials without a drainage process, so the effect of using fiberboard is better than using lightweight bricks, because the fiberboard is integrated well and will not be Refractory bricks are crushed and lose their thermal insulation effect.
When using refractory bricks, it is also possible to use lightweight insulating bricks as the insulation layer. However, one drawback is that refractory bricks are heavy materials and will crush the lightweight insulating bricks. If crushed, lightweight insulation bricks will also reduce the thermal insulation effect.
In short, it is impossible to say whether the use of lightweight insulating bricks and refractory fiberboards is good or bad, it can only be determined according to different usage situations. As far as the materials of lightweight insulating bricks and fiberboard are similar, the thermal insulation effect of fiberboard is better than that of lightweight bricks, but different grades of insulating bricks will be used for thermal insulation at different temperatures.
Therefore, it is difficult to tell which of the two materials is better. The effect can only be determined based on the working layer material or temperature.
