The fiber made of molten aluminum silicate glass containing 43% ~ 55% Al2O3 and 42% ~ 54% SiO is called aluminum silicate fiber. The fiber is usually made by blowing or throwing wire method. It does not contain lubricant and has low content of slag ball. It is an excellent material for filling materials of high temperature kiln and vacuum forming products. Long fiber, low non-fiber content, in addition to high temperature kiln filling material, is also an excellent textile material.
The thermal conductivity of aluminum silicate fiber is very low, only one-tenth that of ordinary high aluminum bricks, and 50% lower than good lightweight insulation bricks. In addition, high temperature thermal stability is good, high use temperature of 1260℃. Much higher than the use of other heat insulation inorganic fiber temperature. In addition, aluminum silicate fiber has the characteristics of small heat capacity, good thermal shock resistance, good corrosion resistance, good oil and so on. Steam and water do not react, aluminum and its alloy melt at high temperature is not wet, little hygroscopic. Aluminum silicate fiber can also be processed into board (soft board). Semi-hard board). Paper, rope, all kinds of secondary products, such as forming parts (pipes, etc.). GB/T16400-2003 standard. In order to take advantage of the excellent properties of aluminum silicate fiber, the secondary product has been widely used in the liquid injection system funnel of aluminum processing and casting industry at home and abroad. Flow orifice. Continuous casting and rolling feed nozzle. Hot cap in hot top casting. Aluminum silicate fiber products variety, its important varieties. Use temperature and raw materials are described below.
1. Use temperature of ordinary aluminum silicate fiber cotton and products: 1100℃; Raw materials: hard clay clinker (burnt gem); 2. High purity aluminum silicate fiber cotton and products use temperature: 1260℃; Raw materials: high purity alumina silicon powder synthetic material; 3. High aluminum silicate fiber cotton and products use temperature: 1360℃; Raw materials: high purity alumina silicon powder synthetic material; 4. Aluminum zirconium silicate fiber cotton and products use temperature: 1430℃; Raw material: high purity alumina silica powder and zircon synthetic material.
Post time: Apr-11-2023
