Development History of refractory fiber
In 1941, the Central Research Institute of firm Babcock and Wilcox (Babcock & Wilcox Co.) found that a kind of fiber similar to asbestos was obtained by injecting kaolinite melt through compressed air. In 1954, the production equipment and technology patents of this kind of fiber were published, and they were formally put into production. In the early 1960s, the United States developed the production process of fire-resistant fiber products and spread the technology to Japan and Europe. In the middle of 60s, all countries began to use fire-resistant fiber blanket and refractory fiber felt instead of refractory bricks as industrial furnace lining, and gradually developed new varieties, such as high purity aluminum silicate fiber and high alumina refractory fiber. In 70s, the successful development of polycrystalline fiber, and has been developing rapidly, in 1974 the British Imperial Chemical Industries Ltd. (Imperial Chemical Industries Ltd) first built a semi industrial test device for production of polycrystalline alumina fibers, built in 1979 with an annual output of 500 ~ 700T industrial production line. In 80s, Japan developed a Al2O380% - containing mullite fiber, and the United States also produced Al2O3 72% mullite fibers. The use range from the heat treatment furnace to the heating furnace and other high temperature fields.
From the beginning of 1970s, China began to test the aluminum silicate refractory fiber and successfully used in the industrial furnace. In 80s, great progress has been made in the basic theory of fiber, the development and application of new products. Al2O372%, Al2O380%, Al2O395%3 polycrystalline refractory fibers have been successfully developed. The ZrO2 polycrystalline fiber has been successfully developed in the laboratory.