Mo Laishi pledges adiabatic brick is to point to gently with aluminous, clay, " 3 stone " etc for main raw material, through be in material shapes or the interior in process of high temperature agglomeration forms the hole that each other connect or closes in great quantities. As a result of its taller hole is led, have inferior coefficient of thermal conductivity consequently, originally plus Molaishi some is high temperature resistant, heatproof shake stability is excellent, the characteristic of tall chemical stability, make its are recorded before numerous domain is having wide application, caused the height of scientific group to pay close attention to. According to the difference of composition and structure, the use temperature of brick of Mo Laishi heat insolation can amount to 1400 ℃ above, watch 2 it is domestic and international the function of product of light qualitative adiabatic brick compares a few kinds of Molaishi. Mo Laishi pledges the preparation method of adiabatic brick has a lot of gently, the preparation method that is the same as light qualitative adiabatic brick is same, basically have light content law, bubble law, aeriform happening law, porous material standard to wait. The Molaishi that the Molaishi below different clay content pledges the substance appearance of adiabatic brick analyses different clay content gently pledges gently the XRD a collection of illustrative plates of adiabatic brick. Can see from inside the graph, in 1450 ℃ firing below temperature, different Molaishi pledges adiabatic brick is in gently firing the main thing appearance after all is Molaishi, and contain a few Fang Shiying and zirconium stone, 40wt is in clay content. Certain quartz still is contained in the sample of % . In addition, clay content 40wt. % to 20wt. The Molaishi of % pledges gently in adiabatic brick, fang Shiying's peak is gradually acerb, and the peak of quartz is to disappear gradually disappear. In 1450 ℃ firing below temperature, basic and complete reaction generated the cyanite in raw material and clay Molaishi, and the amorphous SiO2 that did not react and quartz transform gradually for Fang Shiying. But join a quantity to increase as clay, the quartz that introduce photograph grow in quantity, bring about in the heat preservation below 1450 ℃ 3 hour hind still have a few quartz was not changed. Zirconium stone is introduced by the cyanite that contain zirconium, just begin from 1540 ℃ as a result of zirconium stone slow decompose, can stabilize existence below 1450 ℃ so. The Molaishi of different clay content pledges gently the vitreous appearance content of adiabatic brick. The main effect of vitreous photograph is will dispersive brilliant photograph bind is together, restrain grain to be brought up and fill stoma makes material compact etc. Can see from inside the graph, increase of content of the clay in light qualitative adiabatic brick ceaselessly as Molaishi, the content of vitreous photograph is in increase ceaselessly. Because pledge gently as Molaishi,this is of the clay content in adiabatic brick increase, the quartz that introduces in clay also is jumped over with matter content much, the vitreous appearance content that produces from this is higher and higher also. 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.
Get Price
WhatsApp