Topower Insulation 1260 Ceramic Fiber Blankets For Sale ,Customer In Philippines Ordered 25 Tons
The main raw materials of aluminum silicate ceramic fiber blanket include hard clay clinker, coke stone and alumina silica powder. These inorganic raw materials are strictly screened and proportioned to ensure the basic performance of the product. According to its mineral composition, it can be divided into two categories: glassy fibers and polycrystalline fibers. Glass fiber is an amorphous solid fiber formed by a molten liquid state during cooling; Polycrystalline fibers are often formed by colloidal spraying (or spinning) and high-temperature calcination. Ceramic fiber blankets are widely used as insulation and high-temperature resistant materials in various thermal kilns. Due to their significantly lower capacity compared to other refractory materials, they have very little heat storage and obvious insulation effect. As lining materials, they can greatly reduce energy loss in thermal kilns, bringing a revolution in energy conservation for thermal kilns. On the other hand, its application technology and methods have also brought a revolution to the masonry of thermal kilns.
Zirconium containing fiber is a widely used and low-cost aluminum silicate fiber produced by the melting method. It can be widely used as a full fiber lining for the hot surface of various thermal kilns. Currently, the quality and application development of domestic products in this area are relatively backward. Chromium containing fiber has appeared abroad, with a higher operating temperature than zirconium containing fiber, but there are no reports in this area in China.
The manufacturing process of polycrystalline mullite refractory fibers is different in chemical composition from A80 and A95 polycrystalline alumina fibers. It is obtained by chemical proportioning based on the technical standard of forming the most stable phase or forming a single crystal in the Al2O3 • SiO2 binary phase diagram. The production of polycrystalline mullite refractory ceramic fiber blankets also adopts the colloid method, with a chemical composition of 72% -75% Al2O3 and 25% -28% SiO2. The manufacturing principle involves mixing soluble metal aluminum powder, hydrochloric acid, and industrial soft water into a transparent colloidal solution with a certain viscosity, which is then spun or sprayed into a filamentous body through a spinning wheel, and subjected to low-temperature drying and high-temperature heat treatment for pre crystallization.
