Adiabatic firebrick is had acid-proof alkaline atmosphere and fight fulfiling one's promise ability strong, fight the characteristic with thermal shock good sex. The manufacturing technology that what want the introduction today is firebrick of alumina qualitative heat insolation.
Following place show:
One, raw material and additive. It is main raw material with alumina of electric frit corundum, agglomeration and industrial alumina, add thing for burn oneself out with polystyrene spherule, silica or other material make bulk stabilizing agent, normal temperature, high temperature all has combinative effect, accretion is bond.
2, burden, mix drill and shape. Density of volume of burden basis product and its manage change function requirement, decide the affiliation of of all kinds stock is measured. Mix practice to use the machine that mix practice or slip mixer, order of feed in raw material is: Bond of part of polystyrene spherule → and bond of → of makings of water → pink. Shape adopt product measure
Master easily, the vibration that produces spring back not easily shapes reach its other means to shape, or use slop pouring shape.
3, dry and firing. Dry when, because polystyrene spherule is in 110 ℃ of 90 ～ bulk leap, ever since namely liquefacient, vaporization, oxidation disappears, after most manufacturer undertakes to polystyrene spherule Peng changes processing reoccupy at production, so dry temperature shoulds not be exorbitant and previous, dry the adobe incomplete after
More than moisture asks to be less than 2% . Loading of kiln uses side code, firing when the volume that microtherm phase should note to burn lost property changes, the bulk density that depends on goods and manage change index to decide high fever becomes temperature, want to be more than 1600 ℃ commonly, can compare compact firebrick firing the system is a few faster.
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