1600 degree high temperature polycrystalline mullite fiber cotton

Introduction

Polycrystalline mullite fiber (PMF) is the latest ultra-lightweight high temperature refractory fiber, one of the whole Al₂O₃-SiO₂ based ceramic fibers, temperature in 1300-1600℃, high the glass fiber 200-300 degrees. It can be widely used in metallurgy, machinery, electronics, ceramics, chemicals, aerospace and other high-temperature industrial furnaces and other thermal equipment lined with insulation. To save energy increase and prolong furnace life, the purpose of improving the working environment. The appearance of white, smooth, soft, flexible, just like cotton.

Feature

   Polycrystalline mullite fiber is a unique mullite crystal phase in the form of polycrystalline refractory fiber, complex manufacturing process, high technology content, in foreign countries, only a few developed countries to produce this product, such as the United States silicon carbide company, Britain's ICI (ICI) and Japan, Germany and other several companies. Polycrystalline mullite fiber and glass fiber has a different preparation process, it is the use of chemical "colloidal method" Preparation is the press to form a single crystal mullite (3Al₂O₃-2SiO₂)

Chemical formula, the chemical composition is: Al₂O₃72%, SiO₂28%. The principle is that the soluble aluminum, silicon colloidal solution has a viscosity of liquid using conventional methods spun, and then the high-temperature heat treatment crystal phase transition is completed, obtain mullite fiber. The obtained fiber cotton (bulk) can be used for high-temperature parts sandwich filler, will loose cotton wet vacuum forming can be obtained PMF fiber series of varieties, such as plates, carpets, tiles, marked differences prefabricated parts, modules, combination components.