Corundum mullite castable is a castable made with dense corundum and mullite as aggregate and white corundum powder, Al2O3 powder and mullite powder as fine powder. Corundum mullite castable manufacturing has the common advantages of corundum castable and mullite castable, high high temperature strength, thermal shock resistance and structural spalling resistance, thermal shock resistance, high softening temperature under load, low creep rate at high temperature, good chemical corrosion resistance.
The mullite contained in corundum mullite refractory castable is rare in nature, and the mullite used in industry is artificially synthesized, with high purity, high density, good structure, low creep rate, small thermal expansion, good thermal shock resistance and chemical erosion resistance. Widely used in the refractory industry, and the development is relatively rapid, but if you compare corundum and mullite, the hardness and true density of corundum is much better than mullite.
Rigid jade products are made of refractory products with Al2O3 content of more than 90% and with corundum as the main crystal phase and with appropriate dispersant, coagulant and stainless steel fiber according to a strict formula. Corundum mullite castable manufacturing is mainly used for anti-wear lining of large power plant boilers and lining of other high- temperature kilns.
Properties of corundum mullite castable: it has the common advantages of corundum castable and mullite castable. High strength at high temperature, good thermal shock resistance and structural spalling resistance; Good thermal shock resistance, high softening temperature under load, low creep rate at high temperature, good chemical corrosion resistance. It has the advantages of high purity, high density, good structure, low creep rate, small thermal expansion, good thermal shock resistance and strong chemical erosion resistance. It is widely used in refractory materials and other industries. Corundum mullite castable manufacturing uses high quality refractory materials, and the refractory castable made has good thermal shock resistance.
This series of refractory castable concrete tube furnace can be used in the petrochemical industry, light diesel oil, ethane cracking furnace lining, atmospheric and vacuum furnace and sulfur recovery device and steam boiler, tortoiseshell net heat insulation layer, two barrel and pipe insulation monolayer, and other industrial furnace door, see the fire hole, observation hole door lining, large power station boiler wear lining, lining of gasifier, circulating fluidized bed boiler and cement rotary kiln coal injection pipe and other high temperature furnace lining.
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