熱断熱製品を購入する際にどのような指標に注意する必要がありますか?

熱断熱製品を購入するとき, 適切な材料を選択することは、産業機器の効率的な操作と拡張サービスの寿命を確保するために重要です. Refractory insulation materials are widely used in high-temperature equipment such as furnaces, 窯, and boilers. Their main function is to reduce heat loss, improve the thermal efficiency of equipment, and protect equipment from excessive temperatures. When purchasing, you need to pay attention to the following indicators:

What indicators should be paid attention to in thermal insulation products?

1 . 熱伝導率

Thermal conductivity refers to the amount of heat transferred per unit area of ​​material per unit of time under a unit temperature difference under a stable heat transfer environment. It is an important basis for judging the thermal insulation performance of the material and is related to the type, structure, and water absorption rate of the material.

2. Compressive strength

Compressive strength refers to the maximum pressure load that the material can withstand per unit area without being damaged. 一般的に, the compressive strength of refractory materials is divided into normal-temperature compressive strength and high-temperature compressive strength, which directly affects the use range and service life of the material.

3 体積密度

Volume density refers to the weight of the material per unit volume, which reflects the density of the material and is an important basis for evaluating lightweight refractory insulation materials.

4 Water absorption

Water absorption is the percentage of the mass of water absorbed by the material to the mass of the material itself. 一般的に, refractory insulation materials are required to have a lower water absorption rate. Some insulation materials even propose hydrophobicity. This is mainly because after the porous material absorbs water, the thermal conductivity of water is much greater than that of air, which seriously affects the insulation performance of the material.

5 . 耐熱衝撃性

Thermal shock resistance refers to the ability of refractory insulation materials to remain in a normal state without being damaged under conditions of rapid temperature changes. It is an important indicator for evaluating the quality of refractory insulation materials.