Refractory castable is a material composed of refractory aggregates, powders, binders, etc., used to construct refractory structures. Due to its excellent high-temperature performance and construction performance, it is applied in industrial kilns and thermal equipment in industries such as steel, non-ferrous metals, glass, ceramics, and chemical engineering. In the application of refractory castables, insulation and thermal insulation are often mentioned concepts, but are they the same?
1, Thermal insulation and fire-resistant casting materials
Insulation refers to the process of isolating or weakening heat through a certain medium or material to reduce heat transfer. In refractory castables, insulation is mainly achieved through the thermal conductivity of the material. The lower the thermal conductivity, the better the insulation performance of the material. Therefore, choosing refractory castables with lower thermal conductivity can have a good insulation effect.
2, Thermal insulation and fire-resistant casting materials
Insulation refers to the process of maintaining a certain temperature of an object through certain measures or materials to reduce heat loss. In refractory castables, insulation is mainly achieved through the thermal storage performance of the material. Materials with good thermal storage performance can absorb a large amount of heat and slowly release it within a certain period of time, thereby achieving the effect of insulation. Therefore, selecting refractory castables with better thermal storage performance can have a good insulation effect.
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