Ceramic fiber blanket is an industry-recognized refractory material with excellent thermal insulation performance. At 400 degrees, its thermal conductivity is only 0.086. Based on this, ceramic fiber blankets and modules and other derivative products are quickly accepted by high-temperature kilns, and the application effect In line with expectations.
So how is the insulation performance of ceramic fiber blankets achieved?
Refractory fiber is mainly composed of solid phase and gas phase. Like other objects, these two phases also transfer heat by means of conduction, radiation and convection.
The solid phase refers to the fiber fiber filaments in the ceramic fiber blanket. The interweave between them basically has no direction. The heat transfer path is tortuous, which greatly reduces the strength of the fiber solid phase heat conduction. This is one aspect. On the other hand, the contact between fiber filaments is mostly point contact, which makes the heat transfer between solid phases more difficult.
The gas phase refers to that the ceramic fiber blanket is formed by interweaving fiber filaments, the voids are filled with gas, and the porosity reaches 90%. Most gases, including air, are substances with low thermal conductivity and low heat capacity at rest. The hot air flow entering the fiber is separated and blocked by multiple air holes, and it is almost in a still state. Therefore, the air flow heat transfer in the ceramic fiber blanket is very small.
The above is the reason why ceramic fiber blankets and other refractory fiber products have excellent thermal insulation properties.
Shandong Redun High Temperature Materials Co., Ltd. has domestically advanced production equipment and leading production technology, with an annual output of 10,000 ceramic fiber products, 1260 ceramic fiber products, 1400 ceramic fiber products, and 1600 polycrystalline products. There are more than 30 kinds of products in different forms such as cotton, blanket, felt, board, paper, various textiles, shaped products, modules, folding blocks, casting materials, spraying, etc., which can meet the thermal insulation requirements in different situations in the high temperature field. Welcome If you need a friend, click online customer service at the bottom right of the website or submit an online inquiry form, and we will contact you as soon as possible.