What is a heat insulation refractory material?

What is a heat insulation refractory material? The general rules of equipment and pipeline insulation technology, thermal insulation material means that when the average temperature is equal to or less than 623K (350°C), the thermal conductivity is less than 0. 14W/(m.K) material. Insulation materials are usually light, loose, porous, and low thermal conductivity. It is generally used to prevent heat loss in thermal equipment and pipelines, or used in freezing (also called general cold) and low temperature (also called cryogenic), so heat insulation materials in my country are also called heat preservation or cold preservation materials. At the same time, due to the porous or fibrous structure of thermal insulation material with good sound absorption function, it is also widely used in the construction industry.

Thermal insulation materials have the following performance indicators.

(1) Thermal conductivity. As a thermal insulation material, the thermal conductivity should be as small as possible. Generally, the thermal conductivity should be less than 0.14W/(mK). As a thermal insulation material for cold preservation, the requirement for thermal conductivity is higher.
(2) Bulk density, the rare weight of insulation materials-generally should be low-grade, generally the heat rate is also small, but at the same time the strength of the machine will also be reduced, so a reasonable choice should be made.
(3) Mechanical strength. In order to prevent the thermal insulation material from being deformed or damaged under its own weight and force, its compressive strength should not be less than 3kg/cm.
(4) Water absorption rate. After the thermal insulation material absorbs water, it will not only greatly reduce the thermal insulation performance, l It is very harmful to metal skimming. Therefore, the vine should choose a heat-insulating material with a low water absorption rate.
(5) Heat resistance and use temperature, heat insulation materials with different heat resistance properties should be selected according to the temperature of the place of use. “Using temperature” is the basis for the heat resistance of thermal insulation materials.

The above information is the relevant information about what is a heat insulation and refractory material introduced by a professional fire protection board company. The article comes from goldenpower Group