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, see a table 1, basically have light content law, bubble law, aeriform happening law, porous material standard to wait. The lens of 2 electrons report after the Molaishi of different clay content pledges adiabatic brick is handled through hydrofluoric acid gently the contrast of the photograph, clay content is 20wt respectively. % , 30wt. % , 40wt. % . , acicular, columnar Molaishi builds up for board shape or lump aggregate, the surface of aggregate is distributinging perpendicular at the surface acicular Molaishi, because the crystal form appearance of cyanite is columnar,this is, board shape or strip shape aggregate, decompose below cyanite high temperature generate Molaishi, and not come the crystallization direction of stone is perpendicular at face of brilliant of Yuan Lajing stone, a kind of close together meshy across structure is formed after. Be the existence of structure of network of this kind of across, make the mechanical function of Mo Laishi material has very big promotion. Below identical temperature, little cyanite grain (if area A) compares big cyanite grain (if area B) is decomposed,change more tend complete, making clear the bead diameter of cyanite to be changed to its Molaishi is influential, bead diameter is lesser be helpful for not coming petrifaction, this and the research discovery of Song Jifang and Mr Li article keep consistent. As the addition of clay content, the content drop off of cyanite, can see by contrast, outline is trenchant board scale of Mo Laishi aggregate is reducing lump, the Molaishi with a kind of slightness, relatively loose structure (be in like area C) replace the short and thick, structure that discloses Molaishi to influence generation by cyanite relatively compact Molaishi, and appearance of low frit substance is apparent grow in quantity. Union pursues the true density of 1 is knowable, the pattern that cyanite and clay disclose place to generate Molaishi is not same, decompose Molaishi to change generated Molaishi by cyanite relatively compact, the Mo Laishi grain that by clay reaction makes is relatively inattentive. Increase of content ceaselessly as clay, cyanite content is opposite drop off, inattentive Mo Laishi aggregate is accordingly increasing, the true density of light qualitative adiabatic brick jumps over the Molaishi with clay so bigger content however small. 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. Kiln furnace is able to bear or endure material chooses Rong Cheng, kiln furnace life is more durable!
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