Magnesite Chrome Brick

Magnesia chrome brick is an alkaline refractory product, which is made of periclase and magnesia chrome spinel, and is fired at 1600~1800 °C in an oxidizing atmosphere. It can also be made into non-burned brick by chemical bonding agent such as water glass. According to the raw materials and process characteristics of the products, it can be divided into silicate-bonded magnesia-chrome bricks, direct-bonded magnesia-chromium bricks, re-combined magnesia-chrome bricks, semi-recombined magnesia-chrome bricks, pre-reacted magnesia-chrome bricks Casting magnesia chrome bricks.

Our main exporting brand of refractory bricks are: Direct bonded magnesia-chrome bricks ííííthe product is manufactured by taking high purity magnesia and high quality chrome as raw materials through the process of high pressure moulding and high temperature burning.It has a good thermal shock resistance and volume stability and is applied in the cement and glass industries. Main physiochemical property indexes of product Chemical composition and technical performance Product brand Lzmg-5 Lzmg-8 Lzmg-12 Lzmg-15 Mgo(%) í²70 í²65 í²60 í²55 Sio2(%) ín1.5 ín1.5 ín1.8 ín1.8 Cr2o3(%) í²5.0 í²8.0 í²12.0 í²15.0 Apparent porosity(%) ín18 ín18 ín18 ín18 Cold crushing strength(mpa) í²40 í²40 í²40 í²40 0.2mpa refractoriness under load t0.6(oc) í²1650 í²1650 í²1650 í²1650 Thermal shock resistance(1300oc air cooling) í²20 í²20 í²20 í²20 Also we specially in exporting submerged entry nozzle, sliding plate, ladle and tundish nozzles and well block, etc. Herewith please find some typical refractory material which we have been exported for your reference: Ladle, tundish nozzles and well blocks Item Chrome corundum nozzle Corundum nozzle Al2o3-sic-c nozzle Spinel-c nozzle Lt-70 nozzle Lt-85 nozzle Upper porous nozzle for Tundish Al2o3 (%)í² 90 93 65 55 70 85 80 Cr2o3 (%)í² 2.5 13(mgo) 2.5 C (%)í² 22 7 10 7 3 A.P. (%)ín 2.9 24 8(impre-gnated) 8(impre-gnated) 15 15 24 B.D. (g/cm3) í² 1790 2.95 2.7 2.7 2.7 2.9 Refractoriness (íµ) í² 1550íµx3h 1790 Linear change on reheating(%) +0.1-+0.3 1600íµx3h +/-0.5 Wooden pallets

Magnesite brick, the content of magnesium oxide is more than 90%,periclaseas the main crystal phase of basical refractory brick. Magnesite with high temperature refractorness, high begining temperature of softing under loading,good alkali resistance of slag. According to differnence of the production technology and raw materials,it is names general magnesite brick and fused magnesite brick. Magnesite brick is mainly used for open hearth furnace,bottom and wall of the EAF,conventer, high temperature tunnel kiln,cement kiln,lime kiln, glass furnace regenerator. Any interests, get back to me at whatsapp008618848875625

Magnesia chrome brick is an alkaline refractory product, which is made of periclase and magnesia chrome spinel, and is fired at 1600~1800 °C in an oxidizing atmosphere. It can also be made into non-burned brick by chemical bonding agent such as water glass. According to the raw materials and process characteristics of the products, it can be divided into silicate-bonded magnesia-chrome bricks, direct-bonded magnesia-chromium bricks, re-combined magnesia-chrome bricks, semi-recombined magnesia-chrome bricks, pre-reacted magnesia-chrome bricks Casting magnesia chrome bricks. The magnesia chrome brick can be used in vulnerable parts of steelmaking electric furnace, RH, DH vacuum degassing device, secondary refining slag line parts such as VOD, LF, ASEA-SKF, AOD, steelmaking converter, cement rotary kiln and glass melting Kiln regenerators, etc.

Magnesia-chrome brick is a high-level refractory product material ,which contains MgO and Cr2O3 as the main components, periclase and spinel are the main mineral components. This type of brick has high refractoriness, high temperature strength, strong resistance to alkaline slag, excellent thermal stability, and certain adaptability to acidic slag. The main raw materials for the manufacture of magnesia chrome bricks are sintered magnesia and chromite. The purity of the magnesia raw material should be as high as possible.

Supplier: Magnesite chrome refractory bricks

With the breakthrough of the suspension preheating and pre-decomposition technology in the cement industry and the increasing size of the equipment, the heat load of the kiln is significantly increased, the rotation speed is accelerated, the alkali corrosion is severe, and the lining life and equipment operation cycle are shortened, thus the requirements for refractory materials. More demanding. Its performance advantages are mainly manifested in: 1. High refractoriness under load and excellent high temperature resistance; 2. High strength, abrasion resistance, and easy to peel off and erosion; 3. Low thermal conductivity and good heat insulation effect; 4. Strong flexibility and heat resistance Excellent seismic performance; 5, moderate density, reduce the cylinder load.

With the rapid development of the world automobile industry, the production process of automobile rearview mirrors has also made great progress, and then higher requirements have been placed on the performance and quality of the mold bricks. The glass bending brick has the following characteristics: First, the change of the reheating line is low, because the glass bending brick is sintered at 1050 ° C, which ensures the long-term use of the glass bending brick at 800 ° C. The characteristics of the burning line change to zero and no deformation; Second, the structure is fine, the glass bending brick is formed by micron material mixing by high-speed agitator, and the coarsest material particles in the batch are less than 1000 mesh, sectional structure Very fine; Third, the thermal shock stability is good, the glass hot bending mold brick will not appear any cracks (including cracking phenomenon) during long-term use; Fourth, the processing is convenient, the glass hot bending mold brick is according to user requirements specifications Made, this avoids the problem of large cutting and waste; fifth, the price is low, the price of glass bending bricks is lower than that of similar products. Glass hot bending mold bricks can also be used in industries such as hot bending glass, hot melt glass and process glass.

The glass is mainly made of silica sand and soda ash as raw materials which are melted at a high temperature. Glass melting furnaces are thermal equipment for melting glass and are usually constructed of refractory materials. Glass melting furnaces can be divided into two categories: pool kiln and crucible kiln. The pool kiln is the most commonly used kiln type in the glass industry. It is made of refractory materials, and has a flame pool kiln and an electric kiln. Casting zirconium corundum bricks are commonly known as white iron bricks. It is the most important refractory material to ensure the normal operation of the glass melting furnace. At present, the melting rate of the glass melting furnace at home and abroad is increased, the kiln age is extended, and the fuel consumption is reduced mainly due to the use of the refractory material. The use of fused zirconium corundum brick in the glass melting furnace is to build the upper pool wall, small furnace flat raft, small furnace raft, stone raft and chest wall. Fused cast blocks usually named zircon corundum brick also name AZS bricks( alumina zircon silica ),according to the ZrO2 content difference ,can be named AZS 5.5 ,AZS 12 .AZS 33, AZS 36, AZS 41 and so on. Beside because this type bricks are produced by special electric furnace by model, we also called this products Fused cast AZS bricks. Also according to the brick if have shrinkage cavities, we call them PT, QX, ZWS, WS. These bricks are widely used for iron & steel furnace and glass furnace, also chemical industrial furnace, especial in the glass furnace, you will find it usually.