열 절연 제품을 구매할 때 어떤 지표에주의를 기울여야하는지?

열 절연 제품을 구매할 때, 산업 장비의 효율적인 운영 및 확장 서비스 수명을 보장하기 위해 올바른 재료를 선택하는 것이 중요합니다.. Refractory insulation materials are widely used in high-temperature equipment such as furnaces, 가마, 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 . 열 전도성

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. 일반적으로, 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 부피 밀도

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 수분 흡수

Water absorption is the percentage of the mass of water absorbed by the material to the mass of the material itself. 일반적으로, 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 . 열충격 저항

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.