Publish Time: 2022-07-29 Origin: Site
Application of Fused Silica Ceramic
Fused Silica Ceramic was originally only used as some low-grade refractory materials for metallurgy and glass industries, but with the continuous improvement and improvement of Fused Silica Ceramic performance, its application field has been expanded from the traditional field of refractory materials. It has been rapidly promoted and applied, and now it is playing an increasingly important role in the fields of glass, metallurgy, atomic energy, aerospace, and national defense.
The following is a list of contents:
Glass deep processing
Float glass industry
Metallurgy
Electrical industry
Aviation
At present, roller-type horizontal tempered glass furnaces are widely used at home and abroad to produce tempered glass, and Fused Silica Ceramic has become an irreplaceable key component in glass horizontal tempering furnaces. In the glass horizontal tempering furnace, the rollers are used to support and transport the glass in a softened state under high-temperature conditions, so the high-temperature strength, thermal shock stability, dimensional accuracy, surface finish, resistance to there are strict requirements in terms of abrasiveness and no pollution to glass, and these requirements are exactly in line with the performance characteristics of quartz ceramic rollers. In recent years, my country's tempered glass industry has developed rapidly, which indicates that Fused Silica Ceramic rollers will also have broad market prospects.
Fused Silica Ceramic has the advantages of low thermal conductivity, good thermal shock stability, and small thermal expansion coefficient, and it is not easy to adhere to tin dust and debris, which can significantly improve the surface quality of glass. Therefore, many large-sized Fused Silica Ceramic products have been widely used. Used in the production of float glass. Such as gate bricks, cover bricks, breast wall bricks, support bricks, pressed seam bricks, etc.
Fused Silica Ceramic products have been widely used in ferrous and non-ferrous metallurgy due to their extremely low expansion coefficient and high thermal stability. In the steel casting operation, to prevent the longitudinal crack of the continuous cast steel slab, it must be poured by the immersion nozzle protection method, and the conditions of the immersion nozzle are very harsh. In the middle, the inside and outside of the nozzle are heated at high temperatures at the same time, while the other part of the nozzle is exposed to the air. Therefore, there are strict requirements on the material of the immersion nozzle, which not only has good thermal stability, and low thermal conductivity but also can withstand the erosion of molten steel and the erosion of mold slag. Therefore, Fused Silica Ceramic has become one of the preferred materials for immersion nozzles. In addition, in the metallurgical industry, the quality of the hearth rolls of the metal strip continuous annealing furnace is also one of the main factors affecting the operation rate and product surface quality. Traditional graphite carbon sleeves and ceramic coated rolls are prone to roll surface oxidation, furnace roll nodules, looseness, and peeling, which affect normal production. Fused Silica Ceramic hearth roll has become an ideal substitute for traditional graphite carbon sleeves and ceramic coated rolls due to its high strength, high-temperature resistance, low thermal expansion, good chemical stability, no deformation, high surface finish, and good wear resistance can effectively solve the problems of oxidation and nodules, the service life can be extended by 8-12 times, and the heat treatment temperature can be increased, thereby improving the grade and quality of the metal strip.
Fused Silica Ceramic has the advantages of high breakdown voltage, low dielectric constant, low loss tangent, good thermal shock stability, low thermal conductivity, and good high-temperature performance at room temperature and high temperature. It is an excellent electrical and thermal insulator and lightwave reflector. It has stable performance in atomic equipment and is the only material that can prevent neutron radiation. Fused Silica Ceramic can be used to make filters for the cement industry, chemical industry, thermal power plants, etc., and can be used in thermoelectric heaters. In the electrical industry, quartz ceramics are widely used as insulating covers for gas discharge chambers, furnace bodies for high-power resistance furnace heaters, guide heaters, thermal protection guide covers, arc extinguishing covers, insulating devices for chemical fiber machine preheating furnaces, electrostatic precipitator quartz tube, light source device of photon generator, gas laser discharge chamber element, and electric heating element.
Fused Silica Ceramic has excellent properties such as a small expansion coefficient, good thermal shock resistance, low thermal conductivity, strong thermal protection ability, good wave transmission performance, and low dielectric constant. It is one of the main candidate materials for missile radomes in the field of national defense and military industry. The fiber-reinforced quartz ceramic radome will not be affected in terms of electrical properties, the dielectric properties are stable, and the strength is about 14% higher than the original. The quartz ceramic missile radome can meet the requirements of radar wave transmission, small loss, and small distortion, and can also meet the requirements of missile aerodynamic shape, aerodynamic heating resistance, and structural strength. In addition, due to the high-temperature viscosity of Fused Silica Ceramic, the damage speed when passing through the atmosphere at a high speed above 2500 °C is only 0.0025mm/s, so quartz ceramic can also be used as a thermal insulation material for aerospace vehicles and rocket engine nozzles, Parts such as head and front chamber.
The above is about the application of Fused Silica Ceramic. If you are interested in Fused Silica Ceramic, you can contact us. Our website is https://www.yufengrefractory.com/. I look forward to your arrival very much and hope to cooperate with you.