Chinese name: cyanite;Mullite, rich aluminum andalusite;sillimanite
English name: Aluminum silicate;Aluminosilicate;Ceramic fibre;Cyanite;Disthene;Kaopolite;Kyanite.Mullite;Safe - n - dri;Silicic acid aluminum salt
Mullite is aluminum silicate at high temperatures generated minerals, artificial heating will form mullite aluminum silicate.Natural mullite crystals as elongated needle and radiation clumps.Mullite ore is used to produce high temperature refractory materials.It has the expansion uniformity, excellent thermal shock resistance, high load softening point, high temperature creep value is small, high hardness, good resistance to chemical corrosion, there are mainly high purity fused mullite, fused mullite sintered mullite, all natural bauxite concentrate and light mullite.
Mullite bricks refer to high-alumina refractories with mullite as the main crystalline phase, and the general alumina content is between 65% ~ 75%. It is mainly used for hot blast furnace top, blast furnace body and bottom, glass melting furnace regenerator, ceramic sintering kiln, petroleum cracking system dead angle furnace lining, etc. Mullite bricks have high refractoriness, up to more than 1790 C, and have good thermal shock resistance. There are two types: sintered mullite bricks and fused mullite bricks. The crystallization of fused mullite is larger than that of sintered mullite, and the thermal shock resistance is better than that of sintered products. Aluminum content: 65-90% Standard brick size: 230*115*65mm Compressive strength at room temperature: 100-120MPa Good thermal shock resistance:
Mullite
Introduction of mullite Mullite is a kind of high quality refractory materials, it has a uniform expansion, hot pillow excellent stability, high load softening point, high temperature creep value is small, high hardness, good resistance to chemical corrosion, there are mainly high purity fused mullite, fused mullite sintered mullite, all natural bauxite concentrate and light mullite. Mullite purposes Mullite are suitable for all kinds of flame furnace lining work, direct contact information with the flame (not contact information melt), other high temperature heat preservation and heat insulation equipment, such as: 1, the preparation of various lightweight refractory castable, spray coating, etc.; 2, heating furnace, soaking furnace, heat treatment furnace, annealing furnace, ceramic, refractory products sintering furnace, the furnace wall; 3, steam boiler, oil industry tube furnace, ethane cracking furnace lining; 4, all kinds of industrial furnace door, observation hole lining.
Mullite 70 Technical data of mullite m70 code Al2o3/% 68-73 Sio2/% 22-25 Fe2o3/% f_1 K2o+na2o/% f_0.33 Codebullk density/g.Cm3 fª2.8 Water absorption/% f_3 Refactoriness >1850
Fused mullite is made of high-purity quartz sand and industrial alumina, melted in super large electric arc furnace, and can be processed into particles, fine powders and micro powders with different sizes. It has white color, low carbon residue and well-developed acicular crystals. With the characteristics of low porosity, low impurity content, and good thermal shock resistance and wear resistance. It is widely used in glass kiln lining brick, alkali free glass sedimentation tank, hot blast stove brick of large smelting blast furnace, low creep sillimanite brick of blast furnace, ceramic kiln furniture, box antimony, shed plate, petrochemical industry and other industries.
Fused mullite is made of high-purity quartz sand and industrial alumina, melted in super large electric arc furnace, and can be processed into particles, fine powders and micro powders with different sizes. It has white color, low carbon residue and well-developed acicular crystals. With the characteristics of low porosity, low impurity content, and good thermal shock resistance and wear resistance. It is widely used in glass kiln lining brick, alkali free glass sedimentation tank, hot blast stove brick of large smelting blast furnace, low creep sillimanite brick of blast furnace, ceramic kiln furniture, box antimony, shed plate, petrochemical industry and other industries.
Fused mullite is made of high-purity quartz sand and industrial alumina, melted in super large electric arc furnace, and can be processed into particles, fine powders and micro powders with different sizes. It has white color, low carbon residue and well-developed acicular crystals. With the characteristics of low porosity, low impurity content, and good thermal shock resistance and wear resistance. It is widely used in glass kiln lining brick, alkali free glass sedimentation tank, hot blast stove brick of large smelting blast furnace, low creep sillimanite brick of blast furnace, ceramic kiln furniture, box antimony, shed plate, petrochemical industry and other industries.
Fused mullite is made of high-purity quartz sand and industrial alumina, melted in super large electric arc furnace, and can be processed into particles, fine powders and micro powders with different sizes. It has white color, low carbon residue and well-developed acicular crystals. With the characteristics of low porosity, low impurity content, and good thermal shock resistance and wear resistance. It is widely used in glass kiln lining brick, alkali free glass sedimentation tank, hot blast stove brick of large smelting blast furnace, low creep sillimanite brick of blast furnace, ceramic kiln furniture, box antimony, shed plate, petrochemical industry and other industries.
Sintered Mullite is made of high-quality bauxite, by multistage homogenization and sintering above 1750 C. It has the characteristics of high density, stable quality, good thermal shock stability, small high temperature creep value and good chemical corrosion resistance. It is an ideal raw material for the production of various shaped and unshaped refractory materials, high-grade sanitary ware embryo, precision casting model and other refractory products. Index Type Chemical Composition % Al2O3 SiO2 Fe2O3 BDg/cm3 Water absorption% M60 58-62 32-36 1.5 2.7 2.0 M70 68-72 22-26 .5 2.8 1.5 M80 76-80 14-18 1.5 2.9 1.5 High quality Sintered Mullite is produced by our company's special process. Compared with ordinary mullite, it has the characteristics of low impurity, high mullite phase content, good thermal vibration stability and long service life. It is the ideal replacement product of ordinary mullite. It can be widely used in steel smelting, ceramics, building materials, chemical industry, nonferrous smelting and other industries.
