What is the essential difference between the standard of ceramic fiber and ordinary aluminium silicate?
High fiber, small density, low thermal conductivity, high temperature. If the fiber is coarse and dense, the use is not satisfactory. The thermal stability index of ceramic fiber products (aluminum silicate fiber products) is more important. The range of Al2O3SiO2 fiber contraction in various products of 1260 C line is 35 - 88%. The amount of shrinkage is also directly related to thermal stability. Ceramic fiber products (aluminum silicate fiber products) as ceramic fiber products (aluminum silicate fiber products) with low thermal conductivity, low density, light weight, light steel frame are used in the design and construction of kilns supporting structure, so that the development of ceramic kiln kiln into the "lightweight" era. The fiber has small heat storage and is suitable for quick heating and cooling firing. Flexible fibers can be processed into products with grooves or openings, and has good resistance to mechanical shock and impact ability, chemical stability is good, these advantages for the development of new kiln, and spread to the development of ceramic industry, have an important role in promoting. Ceramic fiber products (aluminum silicate fiber products) the ceramic fiber products (aluminum silicate fiber products) products: carpet, blanket, block, a variety of products like fiber, dispersion of fiber paper and vacuum forming, the work is generally in the range 871 to 1427 DEG C, under special circumstances can be short-term in the limit of high temperature above the use.
Ceramic fiber products (aluminum silicate fiber products) (1) ceramic fiber products (aluminum silicate fiber products) varieties and properties of ceramic fiber products (aluminum silicate fiber products) is the most important indicator of fiber diameter and thermal stability. Al2O3SiO2 fiber is commonly used in ceramic industry. It is divided into different application range according to the content of Al2O3, and Cr2O3 material is introduced into it to improve its refractory and oxidation resistance. Generally high alumina content, iron oxide and other impurities of low fiber products are pure white, the introduction of chromium oxide fiber is sold with milk yellow tone color. The average diameter of ceramic fiber products (aluminium silicate fiber products) is 22 - 33 microns.
Ceramic fiber products (aluminum silicate fiber products) in recent years, ceramic fiber products (aluminum silicate fiber products) in the application of high temperature sintering furnace expanding, ceramic fiber products (aluminum silicate fiber products) refractory felt and blanket products, the highest use temperature up to 1649 DEG C. Ceramic fiber products (aluminum silicate fiber products) to heat insulation effect is good, easy to use, especially small heat storage characteristics, widely used in various kilns, greatly demonstrated high energy efficiency.
However, insulating bricks and refractory fibers can not be abused at will. So far as the basic oxygen furnace, cement rotary kiln lining, due to the high temperature chemical erosion, temporarily cannot be used for lining fiber. Ceramic fiber products (aluminum silicate fiber products) for continuous heating equipment such as ceramic tunnel kiln, has already achieved by ceramic fiber products (aluminum silicate fiber products) for continuous heating equipment lining, according to relevant reports, quickly push board kiln and tunnel kiln in the energy saving effect of fire resistant ceramic fibers are very significant. In particular, ultra high temperature heating, such as burning temperature in 1538 to 1649 degrees of furnace, the use of refractory fiber energy saving effect is best. Ceramic fiber products (aluminum silicate fiber products) at present, Europe and the United States and Japan all ceramic kiln equipment using ceramic fiber products (aluminum silicate fiber products) lining. Not long ago, Japan will be decomposed into compartments such as gas tunnel kiln structure, and then to the segmented manufacturing factory construction site assembly, all of this is due to the use of ceramic fiber material, greatly saves the cost of more convenient because of the kiln. The research on energy saving effect of ceramic fiber products is also being carried out from the aspects of material modification. Ceramic fiber products (aluminium silicate fiber products)
