High alumina refractory fiber

- Apr 04, 2018-

High alumina refractory fiber is a high purity and non crystalline fiber refractory material with alumina content above 58%, Al2O3 and SiO2 greater than 98.5%. In 1970, Japan began to produce Al2O3 60% high alumina refractory fiber and developed rapidly in the late 70s. Due to the production of high alumina fiber with more than 58% Al2O3, it is difficult to make fiber and easily lead to the high content of slag ball, so many countries in the world have changed to produce about 55% of amorphous refractory fiber of about 55%. China began to produce high aluminum fibers in 1981, stipulating that the Al2O3 content of high alumina fibers should be greater than 58%, and the actual Al2O3 will fluctuate at 58%-61%.