What's the fire resistance of the ceramic fiber?
Because of the low heat conductivity, small density and light weight of the fiber, the light steel support structure is adopted in the design and construction of the kiln, which makes the development of the ceramic kiln into the lightweight era of the kiln. 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. The ceramic fiber products are: carpet, blanket, block, a variety of products like fiber, dispersion of fiber paper and vacuum forming, the work is generally in the range of 8711427 DEG C, under special circumstances can be short-term use in the high temperature limit temperature above the.
The most important index of porcelain refractory fiber is the diameter and thermal stability of the fiber. 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 the ceramic fiber is 24 microns. 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 fiber is more important. Al2O3-SiO2 fiber products range between 1260 and 3588% in line shrinkage. The amount of shrinkage is also directly related to thermal stability.
