Magnesia-Hercynite Brick, Refractory Bricks, Magnesia-Hercynite Refractory Brick

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Tianjin
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TT or LC
Min Order Qty:
1 m.t.
Supply Capability:
100 m.t./month

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Packaging & Delivery

Packaging Details:Wooden pallet which is seaworthy or as customers request
Delivery Detail:Within 15 days after contract

Specifications

magnesia bricks 
Easily adhering kiln crust,solves the problem of environmental pollution caused by the sexavalent chrome

                      Magnesia hercynite spinel refractory brick

Features:

 

 1.high crushing strength

 

 2.good thermal shock resistance

 

 3.good thermal creep performance

 

 4.high refractoriness under load

 

 5.easily adhering kiln crust

 

 6.which solves the problem of environmental pollution caused    by thesexavalent chrome

 

Applications:

 

calcining zone of cement rotary kiln

WHY US ?

The Service We Provide . We Take Care Of Your Order.

· Sound after sales service--provide 24 hours’ consultation service. 

· Design upon their special requirements 

· Our company provides all-round services for the customers, including the guide of construction, and lining installation, and operation training after-sale

The Quality We Provide .  Outstanding Quality Assurance.

· Professional fireclay brick manufacture--30 years of fire-proof material suppliers .

· Guaranteed quality--ISO9000 quality management system. 

· Our factory covers a production background of more than 30 years. We have a factory occupying an area of 8000 square meter equipped with 4 production lines.

Magnesia-Hercynite Brick, Refractory Bricks, Magnesia-Hercynite Refractory Brick

Magnesia-Hercynite Brick, Refractory Bricks, Magnesia-Hercynite Refractory Brick

Magnesia-Hercynite Brick, Refractory Bricks, Magnesia-Hercynite Refractory Brick

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Q:What is the high-grade magnesia spinel brick?
Using magnesia as main raw materials, matrix co milling with magnesia and bauxite as alkaline products, high temperature burning, called magnesia brick, also called the first generation of periclase spinel brick.
Q:Spinel compound brick composite layer pollution layer does not affect the use of theoretical basis for it
The chemical composition of magnesia spinel brick has an important effect on the performance of. The suitable chemical compositions of spinel are 8%~20%, cao0.5%~1.0%, fe2o30.2%~8%, sio2<0.4%, B2O3 and alkali. The impurity content is less than 0.3%, and the rest is mgo. When the Al2O3 content is less than 8%, less content of spinel crystals, intergranular directly binding to periclase and periclase magnesia brick, showing the shortcomings, namely spalling resistance difference. When the content of Al2O3 is more than 20%, the corrosion resistance of brick decreases. When cao<0.5%, fe2o3<0.2%, spinel mineral crystal is less than 5mm or more hours, almost as crystal direct binding between periclase and periclase, which shows the disadvantages of magnesia brick. With the increase of the content of Cao and Fe2O3, the liquid phase formed by the low melting point of cao-al2o3-fe2o3 system is formed, which makes the spinel crystal grow up and the anti flaking property produced by the spinel crystal can be exploited. But when cao>1%, fe2o3>0.8%, cao-al2o3-fe2o3 system low melting point liquid phase increased spinel crystal size is more than 20mm, because cao-al2o3-fe2o3 system low melting material increased the thermal strength decreased. When the content of SiO2 is more than 0.4% and the content of impurities such as B2O3 and base is more than 0.3%, more low melting substance is produced, and the thermal strength of the brick decreases. The content of Al2O3 in the range of 8%~20%, the microstructure can be observed on spinel mineral evenly distributed in the periclase spinel mineral, the crystal size is about 5~20mm, the better comprehensive performance of brick.
Q:What is the significance of the synthesis of mg Al spinel? What are the main approaches?
The spinel has high hardness, chemical stability, high melting point and good properties, high temperature resistance in various melt erosion is very strong, so the orebody in spinel, improve the high-temperature performance of the product. Although the spinel has the above properties, the natural magnesium aluminum spinel is very few and can not meet the needs. Therefore, the synthetic method is usually used in modern times.
Q:What are the uses of magnesia spinel brick in the industry?
Used to make ladle casting material, greatly improve the corrosion resistance of steel lining. It is widely used in steel making refractory. The preparation of high-quality pre synthesized spinel provides a new raw material for the production of unshaped and unshaped high purity refractories
Q:What is the primary crystal phase? What is the secondary phase?
The properties, quantities, distribution and bonding state of the main crystalline phases of refractory determine the properties of the products directly. A lot of refractory products, such as mullite brick, corundum brick, magnesia brick, magnesia spinel brick, silicon carbide refractory products, etc., are the main crystalline phase named. What is called a crystalline phase? The second phase and second phase or second phase, refers to the refractory material and the main crystal under high temperature and liquid phase coexist, the number and influence on high temperature properties of materials is the main crystal phase is small second phases. As to the main crystalline phase of periclase magnesia chrome brick, magnesia brick, magnesia brick and magnesia calcium brick respectively containing Cr spinel, spinel, forsterite and calcium silicate two are secondary phase.
Q:What is the structure of magnesium aluminate spinel?
The crystal is composed of eight faces, eight bodies and twelve faces of diamond
Q:What's the difference between iron spinel and magnesium aluminum spinel?
Such as aluminum spinel, iron spinel, zinc spinel, manganese spinel, chromium spinel, etc.. Due to the inclusion of different elements, different spinel can have different colors, such as magnesium spinel in red, blue, green, brown or colorless between; zinc spinel is dark green; iron spinel black, and so on.
Q:What are the characteristics of Mg rich spinel and aluminium rich spinel?
Magnesium spinel is a subspecies of spinel, which is MgAl2O4, also called spinel. An equiaxed crystal having eight crystalline or irregularly granular crystals.
Q:Characteristics of sintered spinel used in refractory zzjsnc
For the production of castable for ladle lining steel plate greatly improve the anti erosion ability. It is widely used in steelmaking refractories provides new raw material for the production of high quality synthetic stone pre sintered spinel prepared amorphous and amorphous high purity refractory material
Q:Spinel refractory brick air-cooled razheng times
The ingredients are magnesium, aluminum, oxygen.

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