The thermal conductivity of aluminum silicate fiber blanket at 1000 ℃ is only 15% of that of fireclay brick. Why does it have such a low thermal conductivity? This can be analyzed from the following aspects.
1 temperature. At different temperatures, the thermal conductivity will correspond to the bulk density. Generally speaking, this bulk density will increase with the increase of temperature.
2. Unit weight. With the increase of bulk density, the thermal conductivity of aluminum silicate fiber will decrease, but the decrease range is decreasing. When the bulk density increases beyond a certain range, the heat conductivity will not decline but rise.
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