2014年3月6日星期四

Mullite basic knowledge


Mullite (or Mok Stone) is composed of a series of aluminum silicate minerals collectively, this type of mineral relatively scarce. Mullite is an aluminum silicate mineral is generated at high temperatures, the formation of the artificial heat aluminosilicate mullite. Natural mullite crystals elongated clusters of needles and showed radiation, MO quarry was used to produce high-temperature refractories.

Feature
  • Mullite is a high quality refractory material, it has a uniform expansion, excellent thermal shock resistance, high load softening point, a small high-temperature creep value, hardness, chemical resistance and good features, there are mainly high-purity fused mullite, fused mullite general, all-natural bauxite ore sintering mullite and mullite light burning.
  • High temperature mullite insulation bricks are of the introduction of new technology, the newest type of energy-saving refractories, high temperature, high strength, thermal conductivity, energy-saving effect is remarkable characteristics, suitable for medium petroleum cracking furnace, stove metallurgy, ceramics roller kiln, tunnel kiln, kiln porcelain drawer, glass and a variety of electric crucible furnace lining, direct contact with the flame, by the relevant technical supervision departments to detect and use of similar foreign products meet the technical specifications of the product.
    Mullite, sintered corundum brick, zircon brick, silicon carbide products, each corundum mullite refractory raw material is a high quality, uniform mullite expansion, excellent thermal shock resistance of mullite, mullite high load softening point, a small high-temperature creep value mullite, mullite, hardness, chemical resistance mullite good.
  • Mullite is composed of a series of aluminum silicate minerals collectively, this type of mineral relatively scarce. Mullite is an aluminum silicate mineral is generated at high temperatures, the formation of the artificial heat aluminosilicate mullite. Natural mullite crystals elongated needles and showed radiation clusters. Mo quarry was used to produce high-temperature refractories. Mullite Al2O3-SiO2 is often depressed unique binary stable binary compound of the formula 3Al2O3-2SiO2, Natural mullite is very small, typically by sintering method or synthetic fused. Density: 3.16g/cm3 formula: A1xSi2-xO5.5-0.5x.
  • Mohs hardness: 6-7 Refractoriness: 1800 remains stable when, 1810 decomposition of corundum and a liquid phase. Mullite is a high quality refractory material,
    it has a uniform expansion, excellent thermal shock resistance, high load softening point, a small high-temperature creep value, hardness, chemical resistance and good features, there are mainly high-purity fused mullite, fused mullite general, all-natural bauxite ore sintering mullite and mullite light burning.

没有评论:

发表评论