Ceramic fiber has the advantages of light weight, high temperature resistance, good thermal stability, low thermal conductivity, small specific heat and mechanical vibration resistance. Therefore, its products are involved in various fields, and have been widely used in machinery, metallurgy, chemical industry, petroleum, transportation, shipping, electronics and light industry. Its applications in aerospace, atomic energy and other cutting-edge science and technology departments are also increasing, which is to improve the quality of industrial kilns, The thermal performance of heating devices and other thermal equipment is the basic material to realize lightweight structure and energy saving. In recent years, due to the rising global energy prices, energy saving has become a strategic background. Compared with traditional refractory materials such as insulating bricks and castables, ceramic fibers, which can save 10%-30% energy, have been more and more widely used in China, and the development prospect is very promising.

Ceramic fiber is mainly used for sealing furnace door and curtain of furnace mouth of various thermal insulation industrial kilns; High temperature flue, air duct bushing, expansion joint; High temperature insulation and heat preservation of petrochemical equipment, vessels and pipelines; Protective clothing, gloves, headgear, helmet, boots, etc. under high temperature environment; Heat shield of automobile engine, package of exhaust pipe of heavy oil engine, composite brake friction pad of high-speed racing car; Packing and gaskets for pumps, compressors and valves conveying high-temperature liquids and gases; High temperature electrical insulation; Fireproof joint products such as fire doors, fire curtains, fire blankets, mats for spark connection and thermal insulation covers; Thermal insulation materials and brake friction pads for aerospace and aviation industry; Insulation and wrapping of cryogenic equipment, vessels and pipelines; Thermal insulation, fire insulation layer and automatic fire curtain for archives, vaults, safes and other important places in high-end office buildings.

Ceramic fiber has low thermal conductivity, excellent thermal stability, chemical stability and no corrosion. The brake linings produced with this fiber have good high temperature resistance and dispersibility, and are suitable for mixing in all kinds of mixers. It is suitable for brake linings with high temperature resistance requirements, good heat recovery performance and low braking noise, The application fields of ceramic fiber products are mainly processing industry and heat treatment (industrial kilns, heat treatment equipment and other thermal equipment), the consumption of which accounts for about 40%, followed by the iron and steel industry, the consumption of which accounts for about 25%. While increasing the output of ceramic fibers, foreign countries pay attention to the development of new varieties. In addition to typical fiber products such as 1000, 1260, 1400, 1600 and mixed fibers, ZrO, cro and other components have been added to the chemical components of the melt in recent years, thus raising the maximum service temperature of ceramic fiber products to 1300 degrees. In addition, some manufacturers have added Cao, MgO and other components to the chemical components of the melt, A variety of new products have been successfully developed, such as high-strength ceramic fiber with 62% - 75%alo soluble ceramic fiber and high-temperature resistant ceramic fiber textile. Therefore, at present, the application of ceramic fibers in foreign countries has brought very significant economic benefits, resulting in the increasing application range of ceramic fibers. The output of ceramic fibers in some major industrial developed areas continues to maintain a momentum of continuous growth, especially the glass aluminum silicate fiber, which develops most rapidly. At the same time, with the continuous expansion of the application range of ceramic fibers, This has led to significant changes in the production structure of ceramic fiber products. For example, the output of ceramic fiber blanket (including modules) has decreased from 70% of the output of ceramic fiber in the past to 45%; The output of ceramic fiber deep-processing products (such as fiber rope, cloth and other fiber products), fiber paper, fiber castables, plastics, coating materials and other fiber amorphous materials has increased significantly. The development, production and application of new varieties of ceramic fiber, which is close to 15% of the output of ceramic fiber, has greatly promoted the development of application technology and construction methods of ceramic fiber.