The main purpose of thermal insulation is to reduce the heat loss of heat medium during transportation, save fuel and ensure temperature. According to different performance and construction methods, thermal insulation materials can be divided into coating type, winding type, filling type, pouring type, spraying type, etc. Ceramic fiber module is a kind of lightweight refractory insulation material rising in recent ten years.
To judge the thermal insulation performance of a material, we should start from the following aspects:
Thermal conductivity: it is the parameter of heat transfer capacity of thermal insulation materials, reflects the thermal conductivity of materials, and is the main thermophysical characteristics of thermal insulation materials. The thermal conductivity of ceramic fiber module at 600 ° is only 0.16w / (m.k).
Unit weight: each thermal insulation material has a reasonable unit weight, which has small thermal conductivity and good thermal insulation effect. In order to save energy and reduce the load of thermal insulation structure in the project, thermal insulation materials with small volume weight shall be used as far as possible. Generally, the bulk density of soft material shall not be greater than 150kg / m3, while the bulk density of ceramic fiber blanket is only 96 ~ 128150kg / m3, and the bulk density of ceramic fiber module is also between 210-220 kg / m3.
Higher service temperature: refers to the limit temperature that the thermal insulation material can withstand for long-term safe and reliable operation. The long-term service temperature of ceramic fiber module is between 850-1300 degrees. It is a product with high temperature resistance except mullite fiber.
Compressive strength: ceramic fiber module is a soft and loose thermal insulation material, which will not be damaged under compressive load.
Linear expansion coefficient: if the linear expansion coefficient of thermal insulation material is large, the internal deformation will produce large stress and damage the thermal insulation structure after heating. Different from conventional thermal insulation materials, ceramic fiber modules do not expand when heated, but have a linear shrinkage rate of < 3%. There is no need to reserve expansion joints during use, and they can be extruded and compacted during installation.
Chemical properties: different use environments require thermal insulation materials to have good chemical stability. Acid and alkali resistance, corrosion resistance and oxidation resistance. Ceramic fiber module performs very well in this regard.
Thickness of thermal insulation layer: in order to reduce the heat dissipation loss of thermal insulation structure, the thickness of thermal insulation material layer shall be calculated according to the method of “economic thickness”. The ceramic fiber module can be flexibly customized according to the use environment.
Thus, compared with other thermal insulation materials, the thermal insulation effect of ceramic fiber module is still prominent.
For more details or questions, please call the company’s hotline + 0531 85800088 or through the online customer service website, or leave your contact information. We have technicians to solve the problems related to high temperature materials for you at any time.
Shandong redon high temperature materials Co., Ltd. has domestic high-end production equipment and reliable production technology, with an annual output of 1050 ceramic fiber series products, 1260 ceramic fiber series products, 1400 ceramic fiber series products and 1600 polycrystalline series products of more than 10000 tons. There are more than 30 kinds of products in different forms, such as cotton, blanket, felt, board, paper, various textiles, profiled products, modules, folding blocks, castables, spraying and so on, which can meet the heat insulation requirements of different situations in the high temperature field. Welcome to click the online service at the bottom right of the website or submit an online inquiry. We will contact you as soon as possible.
