Mo Laishi firebrick is fireproof degree

Mo Laishi firebrick is fireproof degree prep above 1850 Celsius above. Mo Laishi brick is the aluminous silicon department that gives priority to brilliant photograph with Molaishi refractory products. As a result of Mo Laishi brick advocate brilliant photograph is Molaishi, accordingly the property of Mo Laishi brick has: Fireproof degree control in 1850 ℃ , loading bate temperature is high, rate of high temperature creep is low, heatproof shake sex is good, acid-proof sex is slaggy erode, decompose Molaishi; to be below the reducing atmosphere of 1370 ℃ above otherwise, mo Laishi also will decompose; be in temperature prep above when 1650 ℃ , although not be reducing atmosphere is able to bear or endure to be pressed in inferior oxygen cent,fall, mo Laishi also can be decomposed.

The brick basically uses Mo Laishi at line of kiln of liner of car of hot-blast stove, torpedo, potter course of study, saggar, kiln is provided etc.

With synthesizing Molaishi and electric frit artificially Baigang jade is raw material, it is bond with Suzhou earth, can make electric roof use brick of Mo Laishi corundum.

Mo Laishi of will artificial synthesis is broken make aggregate to <4mm, frit white corundum grinds report to make fine noodles or vermicelli made from bean or sweet potato starch to <0.074mm, the vibration of Suzhou earth classics after stoving grinds mill to pledge <0.5mm makes bond. Burden scale limits is as follows: Synthesize Mo Laishi 55~65% , 25~30% of electric frit white corundum, suzhou earth 8~10% . Batch is used wet grind machine mix. Grain makings is added first when mixing refine, mix refine 1~2min, join bond to mix refine 2~3min next, fine pink is joined to mix refine 3~5min after, always mix left and right sides of refine time 10min. Its grain comprises as follows: > 2mm17.9~20.2% , 2~1mm14.3%~18.7% , 1~0.5mm3.9~5.8% , 0.5-0.1mm 13.1~15.9% , <0.1mm41.3~44.7% , water divides 4.6~5.4% .

Embryo body presses bricky machine to shape with 300t attrition, base substrate density is 2.70g/cm3. Embryo body undertakes inside channel desiccator dry. ℃ of entrance temperature 40~50, temperature of senior officer dry 130 ℃ , dry time 48h, embryo form moisture content is more than 1.5% . Goods is firing inside channel kiln, firing temperature is 1550 ℃ , 10h of heat preservation time.

The manage of goods changes index to be as follows: Al2O373.06% , siO224.10% , apparent pore is led 19.9% , bulk density 2.55g/cm3, 81.7MPa of intensity of normal temperature compression, 1550 ℃ , the heavy change that burn a line leads 3h - 0.11% , loading bate begins temperature 1710 ℃ .

Brick of Mo Laishi corundum uses as in upside structure brick, makings path brick, cover board, metallurgy and other industry liner of lukewarm kiln furnace, carbon black reaction furnace is cold paragraph, other industry heats up labor facilities liner.