What does adiabatic firebrick have? What does commonly used and adiabatic firebrick have? Because adiabatic firebrick uses temperature and the character with adiabatic heat preservation to wait for the application in industry kiln furnace in metallurgy, electric power, chemical industry, pottery and porcelain, nonferrous metal extensive. Purchase business qualitative to material when using adiabatic firebrick likelihood somewhat interrogative, below small make up for you the introduction issues commonly used adiabatic firebrick. Adiabatic firebrick, i.e. pledges gently heat preservation brick, basically include tall aluminous qualitative adiabatic firebrick, clay firebrick of heat insolation of Mo Laishi of qualitative adiabatic firebrick, high temperature 3 kinds, differ character according to using temperature and material, utility also somewhat difference. Tall aluminous qualitative adiabatic firebrick is by specific gravity cent 0.5, 0.6, 0.7, 0.8, 1, 1.2 wait for 6 kinds, al2O3 content is in 48% above, use temperature achieves 1400~1500 ℃ . Firebrick of argillaceous qualitative heat insolation is according to specific gravity cent 0.4, 0.6, 0.8, 1, 1.1, 1.2, 1.3 wait for 7 kinds, use temperature is controlled in 1200 ℃ . Firebrick of heat insolation of high temperature Mo Lai presses specific gravity cent to be 0.8, 1, 3 kinds 1.2, use temperature is controlled in 1400~1600 ℃ . You can need sue for peace to use temperature to choose right capable person to pledge according to yours. The sort of light qualitative adiabatic firebrick is very much, can press different method classification. ① is microtherm by use temperature cent model be less than 900 ℃ ) , be like diatomite brick, pearlite brick; In lukewarm model (1200 ℃ of 1000 ～ ) , brick of if vermiculite, silicon acid is calcic, light qualitative clay, siliceous aluminous fiber; High temperature (> ) of 1200 ℃ above, if light qualitative tall aluminous brick, alumina is hollow ball. ② is by bulk density cent second pledge gently (1.39 ／ of 1.o0 ～ Cm3) ; Pledge gently (0.4. Cm3) of ～ 1.Og ／ and super- pledge gently (the following) of 0.49 ／ Cm3. ③ pledges to join combustible by production methods cent law, bubble law and chemical law. ④ is fiber shape, poriferous shape and grain shape by configuration cent. ⑤ is by cent of quality of a material natural with artifical. Adiabatic firebrick uses temperature limits and main characteristic to be as follows. Diatomite brick <900 is made with natural and porous raw material, thermal conductance is small, heat proof quality pledges very gently argillaceous brick 900 ～ 1100 multi-purpose combustible pledges legal system is built. Application pledges gently more extensively tall aluminous brick 1100 ～ 1250 can contact blaze directly, application is wide cordierite brick 1300 heat expand small, be able to bear or endure flake function pledges very gently 1600 alumina of corundum brick ≥ content is high, advocate composition is A, Al2O3, light qualitative silica brick can apply below reducing atmosphere 1550 loading of 1220 ～ softening point is high, brick of feldspar of thermal stability good calcium 1200 ～ 1300 advocate composition is 2SiO2 of · of CaO · Al2O3, bulk density is small, be able to bear or endure burst apart alumina of function good bubble brick law of bubble of 1350 ～ I500, use at heat insolation of kiln furnace high temperature Adiabatic firebrick why can adiabatic? Adiabatic firebrick is the product of adiabatic heat preservation that has regular appearance. Belong to light qualitative heat preservation fireproof material. The common characteristic of this kind of material is bulk density small, unit weight is light, coefficient of thermal conductivity is low. But intensity is inferior, high temperature burns systole again bigger. Adiabatic firebrick classification divides normally it is 3 kinds: Common and adiabatic firebrick, use temperature is under 1000 ℃ , basically have diatomite brick, expand brick of razor clam stone, expand pearlite brick, the many thermal insulation that uses device of the labour that make heat. Fireproof and adiabatic firebrick, use temperature is between 1500 ℃ of 1000 ～ , basically have the heat preservation brick such as light qualitative clay, light qualitative silica brick, light qualitative tall aluminium. Firebrick of high temperature heat insolation, use temperature is in 1500 ℃ above, can use as directly the lining of furnace of high temperature kiln, basically have brick of light qualitative corundum, alumina hollow ball goods and zirconia are hollow ball goods. Knew these we are in the principle that will tell you heat insolation, firebrick of heat insolation of hollow fill a vacancy includes bricky system, bricky body leaves between fluctuation surface have 4 via, 4 via divide two, every discharge two, there are two fills to have heat preservation and adiabatic filling at least in 4 via. Filling gets together for ZL glue pink anticorrosive and benzene grain, compound siliceous aluminium, epispastic polyurethane or XPS warming plate. Brick of heat preservation of heat insolation of hollow fill a vacancy fills filling to achieve through be being filled inside hollow body increase bricky body thermal resistance, reduce conduct heat the purpose of coefficient, have effect of adiabatic heat preservation remarkable, reduce the advantage that builds specific power consumption, the build by laying bricks or stones of the kiln lining body that can apply to heat preservation, thermal insulation extensively or wall body is built. Fireproof material occurrence craze, fall off, easy how to wear away to do? Want to solve a problem thoroughly, need to be dug from germ, the analysis gives real reason, flourish Cheng Naicai is engaged in be able to bear or endure service of timber production, research and development is old, can solve all sorts of difficulty problems of liner of furnace of high temperature kiln, welcome broad new old friend to seek advice reach technical communication.
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