Ceramic fiber blanket is recognized as a refractory with excellent thermal insulation performance in the industry. Its thermal conductivity is only 0.086 at 400 degrees. Based on this, ceramic fiber blanket and module and other derivative products are quickly accepted by high-temperature kilns, and the application effect meets the expectation.
So how to realize the thermal insulation performance of ceramic fiber blanket?
Refractory fiber is mainly composed of solid phase and gas phase. Like other objects, these two phases conduct heat transfer through conduction, radiation and convection.
Solid phase refers to the fibers in the ceramic fiber blanket. The interweaving between them basically has no directionality, and the heat transfer path is tortuous, which greatly reduces the strength of solid-phase heat conduction of fibers. This is one aspect. On the other hand, the contact between fibers is mostly point contact, which makes the heat transfer between solid phases more difficult.
Gas phase refers to the ceramic fiber blanket, which is interwoven with fiber wires. The gap is filled with gas, and the porosity reaches 90%. Most gases, including air, are substances with low thermal conductivity and low thermal capacity at rest. The hot air flow into the fiber is separated and hindered by multiple pores and is almost stationary. Therefore, the airflow heat transfer in ceramic fiber blanket is very small.
These are the reasons for the excellent thermal insulation performance of refractory fiber products such as ceramic fiber blanket.
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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.