What does the product with more low-cost than light qualitative tall aluminous firebrick, good heat preservation have?

Light qualitative tall aluminous firebrick belongs to heat preservation brick, have brick of light qualitative clay low-costly, heat preservation performance is strong basically see coefficient of thermal conductivity, performance of lower heat preservation is stronger. Light qualitative tall aluminous firebrick pledges tall aluminous brick calls tall aluminium adiabatic brick again gently. Alumina content is in 48% above, main the light qualitative fireproof material that constitutes jointly by Molaishi and vitreous photograph or corundum. Bulk density 0.4 ～ 1.35g/cm3. Porosity 66% ～ 73% , compression intensity 1 ～ 8MPa. Heatproof shake performance is better. Use tall aluminous aluminous grog to add a few clay normally, law or bubble law produce with gas after classics mill with slop form pouring, figuration, via 1300 ～ 1500 ℃ are firing. Also can replace partial alumina grog with industrial alumina sometimes. With the liner that builds kiln furnace at build by laying bricks or stones and thermal insulation, and erode without stock of melt of intense high temperature reach erode the place of action. When be being contacted with blaze directly, temperature of watch surface contact does not get prep above 1350 ℃ . Brick of light qualitative clay pledges argillaceous brick is the small qualitative refractory products of AL2O3 content 30%-46% gently, belong to firebrick of adiabatic heat preservation. Use clay grog or pledge argillaceous grog is mixed gently but model clay is main raw material, use combustible law production. Burden and water mix make but model pug or slop, with extrusion or pouring shape, dry hind in 1250 ℃ - in atmosphere of 1350 ℃ oxidation firing. Silicon of light qualitative silica brick pledges adiabatic firebrick calls light qualitative silica brick normally, finely silica basically is used to make raw material when making, its are critical granuality does not exceed 1mm normally, and the grain that is less than 0.5mm among them not less than 90% . In the pug that makes light qualitative silica brick, general mix into enters 35-45% anthracitic or 30% right-and-left coke serve as can light add thing, its granuality is less than 1mm. Choose and add a capacity of the bond in pug, mineralizer basically as identical as production silica brick. Of light qualitative silica brick fireproof spend as identical as composition common silica brick to differ not quite, why because air hole is very much, the reason compression intensity, sex that fight broken bits, sex that fight corrupt be inferior to common silica brick. The use temperature of light qualitative silica brick does not exceed 1550 ℃ , do not contact directly with stock of high temperature melt, do not accept aggressivity gas action continuously. Brick of heat preservation of Mo Laishi of firebrick of light qualitative Mo Laishi is with Molaishi (3Al2O3 · 2SiO2) the expensive aluminous simple fireproof stuff that gives priority to brilliant photograph. General alumina content is in 65% ～ 75% between. Mineral composition divides Molaishi outside, contain alumina among them inferior person still contain a few glass photographs and Fang Shiying; Contain alumina taller person still contain a few corundum. According to using temperature different and main component is: Bricks of bricks of 1350 Mo Laishi heat preservation, 1450 Mo Laishi heat preservation, 1550 Mo Laishi bricks. Which kinds of product compares light qualitative tall aluminous firebrick is performance of low-cost, heat preservation strong? Besides tall aluminium, still have clay, silicon hollow ball brick waits qualitative, Molaishi, alumina a moment, have brick of light qualitative clay low-costly, heat preservation performance is strong basically see coefficient of thermal conductivity, performance of lower heat preservation is stronger. 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.