The brick has Mo Laishi firebrick and corundum Mo Laishi creep of tall, high temperature leads loading bate temperature sex of low, heatproof shake is good wait for an advantage, apply extensively at kiln of frit of blast furnace hot-blast stove, glass, dry extinguish anxious reach heating furnace to wait for industrial furnace on kiln. Mo Laishi is fireproof firebrick is eroded easily below high temperature by alkalescent firebrick. In addition, below high temperature, mo Laishi can generate Al2O3 by reaction with vapor and be damaged. Mo Laishi brick not comes to corundum strength of stone corundum data is tall, heatproof shake sex is good, fight corrode ability stability of lukewarm bulk of strong, Zuo is good, be ambition is medium advanced and fireproof material. And corundum material has light qualitative Molaishi poriferous or fiber shape structure, general coefficient of thermal conductivity function of sound absorption of article of small, heat preservation is good, the heat-insulation layer that is used as the industry kiln furnace such as steely, chemical industry extensively and construction industry are fireproof heat-insulation layer and sound insulation layer.
Corundum not comes stone brick is it is main raw material with corundum, Molaishi, exceed fine pink and additive through adding silicon of right amount alumina, oxidation, high temperature fire finishs in oxidation atmosphere and become, mix by corundum not come the firebrick that Shi Zhujing comprises, the department points to the fireproof product that high pure or purer raw material makes. Among them the existence of impurity of oxide of low melting point, can reduce its high temperature capability. Mo Laishi goods should compare corundum common price of tall aluminous brick is a lot of higher.
Corundum not comes stone brick is in order to import board shape corundum, high pure electric frit corundum is main raw material, application exceeds small pink advancedly to add a skill, course batch mixing, dry, shape, become in the fire inside kiln of type of high temperature shuttle, it is high grade and high pure fireproof pink makings, press product demand proportion, join organic and compound filler, via vacuum extrusion, high temperature burns the product of light qualitative Mo Laishi that combines. Mo Laishi brick uses corundum extensively at residuum aerification furnace, synthesis ammonia changes reaction furnace of furnace, carbon black and fireproof kiln furnace 2 paragraphs to wait for equipment.
Cent of Mo Laishi brick is corundum:
1, agglomeration corundum Mo Laishi brick is with agglomeration corundum, agglomeration Molaishi is main raw material, agglomeration of classics high temperature is made and become;
2, electric frit corundum Mo Laishi brick is with frit of electric frit corundum, report Molaishi is fireproof raw material, classics electric stove is machined and become.
Corundum not comes stone brick characteristic:
1, high temperature resistant, fireproof temperature is high, loading bate temperature is high.
2, be able to bear or endure chemistry is eroded, to acidity solution or slaggy have stronger resistance.
3, fight oxidation. Wait for aeriform happening chemistry not easily to react at O2, H2, CO.
4, thermal stability is good, high temperature volume is steady, not easy and outspread or contractive.
5, heatproof shake performance is good, be able to bear or endure urgent cold urgent heat flakes not easily.
6, intensity of normal temperature compression is high, be being carried or when discharging wear away not easily.
Corundum not comes stone brick
What does utility have?
1, Mo Laishi brick can contact corundum directly blaze, fight flake, high temperature resistant, get used to the stove of high temperature kiln that leaves at all sorts of atmosphere conditions to use; Also can regard the job of furnace of kiln of other industry high temperature as the layer, basically apply at petrifaction industry, large and medium-sized furnace of synthetic ammonia aerification and stove of magnetic material gas use data, material of establishment of form a complete set of furnace of kiln of high temperature industry.
2, ammonia of the high temperature agglomeration that Mo Laishi brick applies corundum extensively at body of pink of pottery and porcelain of zirconia pottery and porcelain, fluorescent material, electron, magnetic material, pottery and porcelain and furnace of petrifaction industry aerification, synthesis changes furnace of kiln of high temperature of reaction furnace of furnace, carbon black and vitreous industry 2 paragraphs.
Corundum not comes stone brick
Manufacturing technology:
Mo Laishi brick uses corundum synthesize Molaishi to make and be become normally, makings of grain of usable Mo Laishi is aggregate, α- Al2O3 pink is powdery makings, frit of usable also report or agglomeration corundum grain expect for aggregate, synthesis Mo Laishi pink is pink to expect. Aggregate and powdery makings deserve to have burden by certain proportion and fraction, it is bond with waste liquid of sulphurous acid pulp, press one methodize feed in raw material. Mix practice adequately even, with attrition the machine that press a brick or hydraulic pressure press bricky machine to shape. After adobe is dry, at 1650 ~1750 ℃ firing.
Does corundum not come what property does stone brick have?
1, heavy simple stuff is compact the gender is good, compression intensity is high, be able to bear or endure all sorts of caustic gas are eroded, thermal shock stability beautiful, heat conduction performance is good, wear-resisting caustic.
2, structure of interior of light simple stuff is even, compression intensity is high, fight erode, heat-resisting shake, fight oxidation, use temperature is high, heat conduction rate is low. Merchandise on hand of manufacturer of foreign industrial firebrick supplies Henan extensive region, the price is more likely.
3, Mo Laishi brick and Mo Laishi firebrick have corundum creep of tall, high temperature leads loading bate temperature sex of low, heatproof shake is good wait for good qualities, apply extensively at kiln of frit of blast furnace hot-blast stove, glass, dry extinguish anxious reach heating furnace to wait for industrial furnace on kiln. Mo Laishi firebrick is corroded easily below high temperature by alkalescent firebrick. In addition, below high temperature, mo Laishi can generate Al2O3 by echo with vapor and suffer damage.
4, corundum Mo Laishi brick is with ash of tall aluminous alumina, silicon, polystyrene the ball makes material, with gel excel in of preparation of the craft that note a pattern pledges gently Molaishi - corundum material, decide PH value and dispersive agent dosage, and delibrate firing hind composition of appearance of the intensity of sample, porosity, thermal conductance, substance and micromechanism. The result makes clear: PH value is 9, dispersive agent adds a capacity for 0.33% , when the ball makings comparing is 4:1(ML·g-1) when, the sample density that 1550 ℃ agglomeration gives is 0.37g/cm3, porosity is amounted to 87.37% , thermal conductance only 0.22W (M·K) , intensity is as high as 2.17MPa; Material advocate brilliant photograph is Molaishi, contain a few corundum photographs, grain is fine, porosity distributings even, hole wall is thin and without be short of and have close persnickety aperture.
Mo Laishi is a kind of superior fireproof material, it has puffy and even, thermal shock to bring stability creep of tall, high temperature is worth softening point of good, loading small, hardness is big, fight chemistry caustic good wait for a characteristic, basically have now high pure electric frit is Mo Laishi of Molaishi, average report frit, round-the-clock like that Molaishi mixes agglomeration of aluminous aluminous concentrate to burn Molaishi gently. Aggregate of light qualitative Mo Laishi but rapid drying-out, exhaust of headroom ground rate is smooth, reduced the time of drying-out, economic benefits rises significantly. The temperature of treatment is high, can contact blaze exercise line to apply directly, the high temperature that finish is energy-saving. Heat conduction is low, heat preservation is good, burden of aggregate of tailor-made light qualitative Mo Laishi, bulk is smooth and steady, intensity is high, tectonic airtight is better. Tectonic heft is reduced 40- - 60% , reduced roof condole to register the issue that the brick decides.
Agglomeration Mo Laishi is used to produce high temperature is fireproof material. Mo Laishi often presses the binary compound of next only and smooth and steady existence, natural Molaishi is very little, wait for artificial synthesis with agglomeration law or electric frit law normally. With agglomeration or electric frit Molaishi is the firebrick that main material makes, can choose Molaishi entirely, also can have some choose Molaishi, some choose corundum to be material. Former call Mo Laishi firebrick, latter calls corundum to not come stone firebrick or corundum Mo Laishi brick. The manufacturing technological process of Mo Laishi firebrick and tall aluminous brick are same, burden classics batch mixing, shape, dry with firing wait for a few working procedure. Firing temperature and burden are formed, the purity of material and the requirement to firebrick function are concerned, it is 1500 ～ commonly 1700 ℃ .
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