The "Jun" brand fused mullite main raw materials are industrial alumina and high-quality quartz sand, which is smelted by large high-temperature electric arc furnaces. Fused mullite is the only stable binary compound in alumina-silica dual system. lt is a high-quality refractory material. The colors are gray -white, needle shaped, cylindrical crystals, and high bending strength. lt has the
characteristics of uniform expansion, good thermal shock stability, highly refractoriness under load, small high temperature creep value , high hardness,good anti -chemical corrosion etc. With its excellent heat shock resistance and abrasion resistance, it is widely used in glass kiln body furnace lining bricks,alkaline -free glass sedimentation tank mullite bricks, large smelting blast furnace hot air furnace bricks, blast-furnace low creep sillimanite brick, ceramic kiln furniture, saggar, petrochemical and other industries are raw materials for high -end refractory materials.
Corporalia proprietates et chemica compositio
Item | Latin | |
Compositio (%) | Praestare valorem | typical pretii |
Al₂O₃ | 72 ~ 76 | 74.10 |
SiO₂ | 23 ~ 27 | 25.08 |
Fe₂O₃ | ≤0.10 | 0.05 |
R₂O | ≤0.50 | 0.18 |
Mullite phase(%) | ≥93 | |
Speculum tempus(%) | ≤7 | |
Coeffcientof linear expansion (1/℃) | -6.0x10 | |
Mole densitatis(g/cm3) | ≥2.9 | |
particula magnitudine | 0~1~3~5~8mm,180 mesh,200 mesh,240 mesh,325 mesh | |
vexillum inspectionem | GB/T21114-2007;GB/T2999-2002 | |
sarcina | Interiores plasticae et externae texendi 25KG/peram (potest nativus secundum mos requisita) |