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10
2021
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12
What are the characteristics of polycrystalline mullite fibers?
After several years of renewal, at present, most of the tunnel kilns of brick kiln manufacturers that produce red bricks, shale bricks, etc. use lightweight ceramic fiber modules as furnace refractory and thermal insulation materials. Then, willpolycrystalline mullite fiberModule as a furnace used in tunnel kiln, polycrystalline mullite fiber will apply what characteristics and product performance.

Polycrystalline mullite fiber (PMF) is a new type of ultra-light and high-temperature refractory fiber at home and abroad. It is one of the all-Al2O3-SiO2 ceramic fibers. The operating temperature is 1500-1700, which is higher than 200-400 glass fiber. Polycrystalline mullite fiber production technology
Polycrystalline mullite fiber market listing, for the vast majority of design researchers to design new equipment, develop new products and new technologies to provide a material basis; even for the industrial and mining enterprises with thermal equipment to provide the transformation of old equipment, increase production, energy conservation, improve the environment, the progress of the ideal means.
polycrystalline mullite fiberWhat are the characteristics?
1. Lightweight function: Polycrystalline mullite fiber board is a new type of heat-insulating refractory material with lighter and higher energy efficiency. Its weight is only 1/7 of the heavy weight and 1/3 of the light heat-insulating brick. Therefore, it can not only reduce the load of heat-insulating material on the steel structure of the kiln, but also prolong the life of the furnace body.
2. Low thermal conductivity: The thermal conductivity of polycrystalline mullite fiber module is only about one-tenth of that of lightweight heat-resistant lining and lightweight castable lining, which can save about 30% of energy, which can not only reduce the energy loss of the kiln, but also save more energy and create more profits.
3. Convenient construction: There is no need to make an appointment for expansion joints during the construction process, and the ceramic fiber module (folding block) can expand everywhere.
4. No need for oven: the furnace lining can be used immediately after the end of construction. Oven procedures are not required. Generally speaking, the traditional refractory material is not only the oven, the oven time is long, and the oven time of the tunnel kiln insulation engineering using the ceramic fiber module (folding block) process is short and the investment is less.
5. Good thermal insulation performance. Tunnel kilns using ceramic fiber modules (folding blocks) do not feel hot hands when touched outside. The temperature in the stove is usually 850~1400, but it is only about 35 degrees outside. It can be seen how obvious the thermal insulation effect of the ceramic fiber module is.
6. Chemical performance stability: Polycrystalline mullite fiber module is a neutral acidic substance. In addition to strong acid-base reaction, it will not be eroded by weak acid, alkali and water, oil and steam, nor will it be infiltrated with lead, aluminum and copper.
What is the service scope of Polycrystalline Mullite Fiber?
polycrystalline mullite fiberProducts can be used for a long time silicon carbide furnace, silicon molybdenum furnace, all kinds of steel heating furnace, mechanical forging furnace and other high temperature heat equipment below 1600, can greatly improve the thermal efficiency of the equipment, greatly save energy, improve work efficiency, improve product quality.
Can be used in a variety of high temperature industrial furnace applied to insulation materials. Ceramic kiln machinery, metallurgical heating furnace; open lining of heat treatment furnace and other industrial kilns; high temperature fireproof flame; thermal insulation materials such as kiln doors, kiln cars, expansion joints, etc.; glass kiln insulation.
Polycrystalline mullite fiber