Do carborundum brick and corundum not come stone brick which good?

The brick is in carborundum brick and corundum Mo Laishi fireproof spend and compression intensity performance is good, two kinds material is qualitative different, the price also has a difference, which it is a basis very kiln furnace is specific of the requirement, the proposal sells only right do not buy expensive, the product with durable economy.

Carborundum brick
Make for main raw material with carborundum. SiC is united in wedlock for covalence, nonexistent the agglomeration sex that says normally, and rely on chemical reaction to generate new look to achieve agglomeration, react namely agglomeration. Carborundum brick has good acid-proof sex, alkali resistance sex, wearability, high intensity, tall heatproof shake sex, hot coefficient of expansion small, thermal conductivity is good wait for a characteristic, its defect is oxidisability difference is fought below high temperature, the value is relative more expensive. In metallurgical industry, carborundum brick brick applies to the special place of furnace kiln. If be in coloured metallurgy respect is multi-purpose the tower at furnace of rectify of tower type zinc dish, the can without lid of furnace of distill of zinc of perpendicular canister refine, blast furnace brick of 2 a place with a draught. In steely metallurgy respect, multi-purpose head of a place of strategic importance of mouth of the liner of Yu Chenggang bucket, water, chamfer of blast furnace hearth, bosh, molten iron, converter and mouth of electric stove tapping and heating furnace do not have water-cooling slideway to wait. Normally the production method of carborundum brick is SiC bead, SiC pink and bond mix, classics tired makings, shape, dry hind firing for the product. Carborundum brick presses carborundum grain between of bond different can divide for: ① oxide (or silicate) combine carborundum, be like SiO: Or clay combines carborundum; ② nitrogen changes silicon (SiaN ㈠ combines carborundum; ③ nitrogen oxide (Si20N: ) combine carborundum; ④ Sialon(surpasses grand) combinative carborundum; ⑤ is united in wedlock oneself (namely fine SiC is united in wedlock) carborundum. How to differentiate a lot of users are in bad of actor of carborundum brick quality when buying goods of carborundum brick and carborundum, be not worth as a result of experience, cannot discern the actor bad of carborundum product quality, so that often buy unqualified carborundum goods, affect the service life of kiln furnace greatly thereby, increase the investment of fireproof data side, bring needless loss for the enterprise. So how to discern the actor bad of carborundum brick? Above all, the measurement standards of carborundum brick should be accurate, the proportion of carborundum brick is in commonly 2.45- - 2.6 between, specific gravity passes capable person of small too big perhaps specification qualitative itself is not pure, added other and fireproof material certainly, affect carborundum content greatly thereby, the diathermancy that affects carborundum can. When buying carborundum brick, whether does the face that should see a brick have vertex damage and flaw, vertex damage and crackle should be inside formulary limits, if exceed badly,mark should approve product off quality definitely. The box that pack must be supervised to assemble a car in the spot when buying carborundum brick, avoid cruel construction to cause a product to be short of caustic, destroy.
Carborundum brick still applies in a lot of blame to heat directly inside structure of type kiln furnace, if zincic destilling tower, vertical reachs horizontal retort,wait. Inside wider temperature range, the mechanical intensity of the firebrick with qualitative carborundum and wearability all tall, because this can use it make,be able to bear or endure component of sail instrument tatty, include the guide that microtherm uses and draw bar among them, and suffer intense tatty to come back cent implement, the grate of kiln car of kiln of the liner that wait, channel, filter enrages dust arrester, conduit, chute, hearth to be waited a moment with poriferous goods. Carborundum pledges the become privileged of firebrick learns function, it is good to make the use result in all sorts of its kiln furnaces in coloured metallurgy and chemical industry and device favorable.

Corundum not comes stone brick
It is namely mix by corundum not come the tall aluminous firebrick that Shi Zhujing comprises, corundum not comes the firebrick that stone brick department points to to high pure or purer raw material is made. Among them the existence of impurity of oxide of low melting point, can reduce its high temperature capability. Mo Laishi brick should compare corundum common price of tall aluminous brick is a lot of higher. Function: The high temperature strength with be had better, fight high temperature creep gender, heatproof shake sex and fight aggressivity. The manage of Mo Laishi brick changes a kind of typical corundum function is: Al2O3 ≥ 85% , fe2O3 0.45% , apparent pore is led 19% , intensity of normal temperature compression is more than temperature of 55MPa loading bate to be more than 1700 ℃ , add a hot line to change (1600 ℃ , 3h) ﹣ 0.1% , heatproof shake sex (1100 ℃ water-cooling) be more than 30 times. Body of adobe of corundum Mo Laishi uses 300t attrition compressor shape, base substrate density is 2.7g/cm3. Base substrate undertakes inside channel desiccator dry. ℃ of entrance temperature 40~50, upper limit is dry temperature 130 ℃ , dry time 48h, base substrate moisture is more than 1.5% . Goods is firing inside channel kiln, firing temperature is 1550 ℃ , 10h of heat preservation time. Product 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.
Mo Laishi brick can contact corundum directly blaze, fight flake, high temperature resistant, can regard high temperature industry as the adiabatic line of furnace already, 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.
Not come about carborundum brick and corundum stone brick which good, introduce here, if have other question, greeting incoming telegram seeks advice.