The phyletic light qualitative firebrick of light qualitative firebrick belongs to light qualitative heat preservation fireproof material. The common characteristic of this kind of material is bulk small, weight light, coefficient of thermal conductivity is low. But intensity is inferior, systole of high temperature Reburns is bigger, heat preservation, it is good to ensure wet result. Light qualitative firebrick has a variety of classification methods: Press use temperature classification. Insulation material uses temperature 600~900. In the temperature insulation material that spends in 900~1200, heat-insulating material of 1200 many high temperature. Bulk density. Bulk density is 0.4 ~ 1.3g/ CMS is light qualitative firebrick; Exceed light qualitative firebrick under 0.4g/cm3. Press product figure classification. A kind of light qualitative firebrick, include argillaceous firebrick, tall aluminium to pledge adiabatic firebrick, silicon pledges firebrick, light qualitative firebrick is mixed a few pure oxide, wait for other type inaccuracy to decide light qualitative firebrick, be like light qualitative fireproof concrete. The making method of light qualitative firebrick has 4 kinds: Bubble law. Add foaming agent to saggar, the toilet soap that be like a pine, make the mechanical method of bleb, combustion hind gets perforated brick product. Law of addition of burn oneself out. Also call combustible. In firebrick clay, can burn material, be like the end of carbon and wood chip, can use up easily, make firebrick can have certain porosity after combustion. Porous material standard. Light qualitative firebrick is by natural diatomite or artificial dry foam, alumina or zirconia the porous material such as hollow ball is made. Chemical law. In the manufacturing process of firebrick, pass proper chemical response, got a kind of poriferous firebrick. The product application of light qualitative firebrick 1, all sorts of industry furnace heat up face lining material, be like: Annealing furnace, carbonization furnace, answer burner, oil refining heating furnace, splitting decomposition furnace, roller path kiln, channel kiln. 2, the heat-insulating material back line of all sorts of industry furnace. 3, reducing atmosphere furnace. The production methods of light qualitative firebrick has commonly undermentioned a few kinds: ① becomes brick from cut of poriferous light qualitative Yuan Yan directly; ② with natural or man-made is poriferous light simple stuff makes a brick for raw material; ③ joins the combustible of easy burn-up in pug, be like light ball of rice husk of sawdust, char, polystyrene; Or add sublimate substance, be like naphthalene, burn oneself out, poriferous structure is formed after volatilizing; ④ adds foaming agent in pug, be like colophony black, firing hind acquire poriferous structure; ⑤ adds carbonate, aluminium powder and hydrochloric acid in pug, reaction of chemistry of have the aid of gives off gas and form poriferous structure. Generally speaking, use ④ of ② ～ to plant the method is more. The sort of light qualitative firebrick and characteristic diatomite brick <1100 ℃ Make with natural and porous raw material, thermal conductance is small, heat proof quality is good Brick of light qualitative clay 1400 ℃ of 1200 ～ are multi-purpose can light legal system to build, utility pledges gently extensively tall aluminous brick Law of 1350 ℃ bubble produces 1500 ～ , heat-resisting performance is good, use at high temperature heat insolation Brick of light qualitative corundum 1800 ℃ of 1600 ～ Al203 content is high, advocate brilliant photograph is corundum, light qualitative silica brick can be used below reproducibility condition 1550 ℃ of 1220 ～ loading bate temperature is high, thermal stability is good Calcic feldspar pledges gently brick bases is 1300 ℃ of 1200 ～ CaO, al2O3, si02, bulk density is small, be able to bear or endure burst apart the gender is good, the stability in reducing atmosphere Magnesium is qualitative 1800 ℃ of 1600 ～ heat-resisting performance is good, use temperature is high Zirconium stone is qualitative 1500 ℃ Bubble law is produced, use at heat insolation of superhigh temperature furnace Zirconia is qualitative <2000 ℃ Bubble law is produced, use at heat insolation of superhigh temperature furnace Cordierite is qualitative <1300 ℃ Heat expands small, be able to bear or endure flake performance is good Carborundum is qualitative 1300 ℃ Be able to bear or endure aggressivity is good, be able to bear or endure burst apart the gender is good, high temperature intensity pledges how build by laying bricks or stones builds firebrick to pledge firebrick serves as a of fireproof material main component gently gently, it is the be mixed of fireproof material and insulation material, the build by laying bricks or stones that firebrick manufacturer tells everybody light qualitative light qualitative brick today builds a method. 1, build slop to choose finished product when build by laying bricks or stones when fireproof mud or slop of clay of diatomite pink union, answer to choose mechanical agitate as far as possible, agitate hour is not gotten little at 5min, slop consistency accuses through adding water quantity to hold. 2, fall in the circumstance of inorganic instrument agitate, appropriate is chosen immerse law, be about to mix the embezzle of water of raw material fill that makes build by laying bricks or stones build slop to use, natural permeate, immerse to always be not gotten little at 24h, the decant after permeating goes agitate of the rest water and into. 3, before build by laying bricks or stones builds brick of light qualitative clay, the feeling aspect that should examine diatomite brick and kiln furnace housing accords with a requirement. 4, when build by laying bricks or stones builds heavy-duty boiler setting, it is accurate that the quality of firebrick of the path before should be being examined accords with device of requirement, accessory. In pledging firebrick build by laying bricks or stones builds a course gently, classics regular meeting encounters the firebrick of more difficult build by laying bricks or stones, curium cut treatment to be used at fault of body of adiabatic build by laying bricks or stones to seam with brick or other treatment the brick uses hand bladed saw or hacksaw curiums cut, cannot chop with bricky knife cut. When batch is machined, appropriate is held with example accuse, underline directly with saw blade or steel needle. Firebrick manufacturer machines precision to progress, with component of different profiled bar feeling is in, should choose embossing law to conclude treatment line. Introduce here about light qualitative firebrick, hope to be helped somewhat to everybody, flourish Cheng Naicai regards professional firebrick as manufacturer, have perfect quality be careful in one's conduct to mark allows and monitor a system, the formula of check proved recipe that Rong Chengcai uses pair of 3 check, strict self check, sampling observation, reinspect a program, ensure each batches of fireproof material can accord with the standard of the user, let what the client buys be at ease used Shu Xin.
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