Fire retardant fiber characteristics

Fire retardant fiber characteristics

Refractory fiber characteristics
High temperature
The maximum temperature up to 1250 ~ 2500 ℃. The most commonly used asbestos is only 500 ~ 550 ℃, slag wool is 580 ~ 830 ℃, while aluminum silicate fiber up to 1000 ℃.
2. Low thermal conductivity.
Refractory fiber has low thermal conductivity at high temperature. For example, the thermal conductivity of aluminum silicate fiber is only 20% of clay brick and 38% of light clay brick at 1000 ℃.
3. Small bulk density.
Usually 0.1 ~ 0.2g / cm3, for the general clay brick 1/20 ~ 1/10, light clay brick 1/10 ~ 1/5. Therefore, the use of refractory fiber industrial furnace refractory bricks, furnace weight can be reduced, the wall thickness thinner. Such as furnace lined with fiber lighten 80%, wall thickness thinning 50%.
4. Chemical stability is good.
In addition to alkali, fluoride, sulfate, almost no chemical erosion.
5. Good thermal shock resistance.
No matter the fiber material or the product, all has the good thermal shock resistance which the firebrick can not compare.
Low heat capacity
The heat capacity of the fiber material is only 1/72 of that of refractory bricks and 1/42 of light clay bricks. Fired with fire-resistant lining in the afternoon, heat loss is small, save fuel, warming fast, intermittent operation furnace kiln friendly as obvious.
7. Soft, easy to process.
Can be made into a variety of products and personnel shape components, construction convenience, low labor intensity, good effect.

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