Alumina fibres have lower thermal conductivity and heat capacity. The temperature of long-term usage is higher than that of ordinary aluminum silicate (1000 1100 degC). It can be used with acidic atmospheres, oxidizing atmospherics, reducing atmospherics and vacuum. It is also resistant to alkaline environments, but can be easily eroded by vanadium and lead pentoxide. This type of fiber is used mainly as a furnace heat insulation for different heat treatment furnaces. In batch operation, this furnace can increase output to a great extent. Alumina can also be used to transport catalysts in the chemical industry. Insulation material for nuclear reactors or space shuttles. Light alloy reinforcements. The industrial high-temperature field has a significant energy saving effect. The alumina fiber short has a high temperature resistance and is mostly used as heat-insulating materials for the body of a metallurgical, ceramic sintering or other high-temperature oven. Low density. Its low density and good heat insulation can help reduce the quality and size of the furnace. This can also increase the precision in temperature control and improve energy efficiency. The energy saving effect of alumina fibre in high temperature furnace is superior to that of refractory or high temperature coating. The energy savings are much greater than heat loss. This is because not only does the heat loss decrease, but also that the furnace gases are strengthened. Convective Heat Transfer, so the furnace wall gets more heat and then transferred to the material via the national emblem.
Highlights on environmental protection and recycle applications
The Alumina Long Fiber Reinforced Metal Matrix Composites are used mainly in high-load mechanical components and high-temperature, high-speed rotating elements as well high-functional parts with low weight requirements such as automotive connector rods, transmissions rods, brake pad and other parts. Device, etc. Recently, researchers began using it as a lining for thermonuclear heat exchangers that cool the reactor.
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