• Refractories Fireproof Mullite Insulating Refractory Bricks System 1
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Refractories Fireproof Mullite Insulating Refractory Bricks

Refractories Fireproof Mullite Insulating Refractory Bricks

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
10 m.t.
Supply Capability:
1000 m.t./month

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Mullite insulating brick kiln bricks for sale

 

Product Description

  

Description:

  Lightweight mullite refractory bricks are made from good quality and superpure raw materials, with strictly classified fillings according to their grades. These fillings can form a uniform pore structure after burnt during the process of manufacture. Each grade of products has unique design to meet different thermal, physical and chomical demands.

Application:

  The refractory linings of hot surfaces or backing heat-insulating layers of other refractory materials. The refractory linings or heat-insulating materials of the industries, such as, ethylene pyrolysis furnaces, tubular furnaces, reforming furnaces of synthetic ammonia, gas generators and high-temperature shullte kilns,etc

 

Sunrise Brand

JM23

JM26

JM28

JM30

JM32

USA Brand

IFB2300

IFB2600

IFB2800

IFB3000

IFB3200

Classification   Temperature (°C)

1260

1430

1540

1650

1760

Bulk Density   (g/cm3)

0.55-0.60

0.78

0.88

1.03

1.25

Cold Crushing   Strength (Mpa)

1.2

1.6

2.1

2.5

3.5

Modulus of Rupture   (Mpa)

0.9

1.4

1.6

2.1

2.1

Reheating Linear   Change (%)

1230°C

1400°C

1510°C 

1620°C

1730°C

  CT-30 °CX   8H

-0.5

-0.5

-0.5

-0.9

-0.9

Thermal   Expansion

 0.5

 0.7

0.8

 0.9

 1.1

1000°C(%)

Thermal   conductivity(W/m.k) 

400°C

0.14

0.27

0.32

0.41

0.49

Thermal   conductivity(W/m.k) 

400°C

0.14

0.27

0.32

0.41

0.49

600°C

0.16

0.29

0.34

0.43

0.5

800°C

0.18

0.31

0.36

0.44

0.51

1000°C

0.2

0.33

0.38

0.45

0.53

Al2O3 (%)

37

58

67

73

77

Fe2O3 (%)

1

1

1

0.5

0.4



Mullite Insulation Brick can be used as working lining, where contact with flames directly. This kind of brick can save the kiln energy very much

Refractories Fireproof Mullite Insulating Refractory Bricks

Refractories Fireproof Mullite Insulating Refractory Bricks


Refractories Fireproof Mullite Insulating Refractory Bricks


Q:What is the price of refractory bricks?
The construction is superior, the light insulating brick has good machinability, and the construction is convenient and simple, and the labor intensity can be reduced, the construction efficiency can be improved, and the construction period can be shortened. The price is determined by the choice of material and volume density, from several hundred to 5000 yuan, mainly with the choice of material
Q:The introduction of mullite brick
High alumina refractory with crystalline mullite (3Al2O3, 2SiO2) as the main crystal phase.
Q:What is the difference between mullite ceramics and alumina ceramics? Can you tell me something to do with floor tiles?
Mullite is formed by the reaction of alumina with silica. The main difference between him and alumina is that:Hardness: alumina is harder than mullite, but two are tough enough, and are not easy to break.Corrosion resistance: mullite acid is not alkali resistant. Alpha alumina ceramic acid, alkali resistance - for floor tiles, alumina corrosion resistance is too high, unnecessary.
Q:Aluminum content 38, silicon content 55 What refractory bricks?
When the bricks are below Al2O3 71.8%, the base of the composition is mullite and SiO2, such as grade LZ-48 bricks. Because it contains a large number of SiO2 formed in the liquid phase under high temperature is 20% ~ 30%; brick in Al2O3 more than 71.8%, the excess Al2O3 formed corundum crystal under high temperature, while generating 2 high temperature phase, eutectic temperature rise by the low content of Al2O3 brick 1595 C to 1840 C, such as grade LZ-75 brick. In fact, it is impossible to produce a complete phase equilibrium in the process of production, but the glass phase is very small, and there is no more than 10% in the partial gap of the Yu Jing phase
Q:The difference between the high aluminum corundum brick and corundum mullite brick
Wall tiles and floor tiles are collectively referred to as ceramic tile flooring
Q:What are the properties of corundum mullite?
Lightweight materials have uniform internal structure, high compressive strength, corrosion resistance, heat shock resistance, oxidation resistance, high temperature and low thermal conductivity.
Q:(refractory castable, silicon carbide brick, mullite bricks etc.) do testing should be commissioned by the project? What are the specific qualification standards? Thank you
If there is no mark, ask the laboratory of the production factory to analyze any chemical or physical items. Or, check the national standard, the national standard has the basic requirements of the physical indicators
Q:Mullite bricks in alumina alumina is what?
Mullite (3Al2O3 - 2SiO2) high alumina refractory materials as the main crystal phase. The general alumina content in 65% ~ 75%. In addition to mineral composition of mullite, alumina containing low also contain a small amount of glass phase and cristobalite; alumina containing high also contain a small amount of corundum.
Q:Mullite brick
High refractoriness, up to 1790 degrees celsius. The softening start temperature is 1600~1700 degrees. The compressive strength at normal temperature is 70 ~ 260MPa. Good thermal shock resistance. The sintered mullite and fused mullite brick two. Sintered mullite brick with high bauxite clinker as the main raw material, adding a small amount of clay or raw bauxite as binder, after molding, sintering and made. Fused mullite brick with high bauxite, alumina and refractory clay as raw material, adding charcoal or coke fines as a reducing agent, formed by reduction of electric melting method to manufacture. The crystallization of fused mullite is larger than that of sintered mullite, and the thermal shock resistance is better than that of sintered products. Their high temperature performance mainly depends on the content of alumina and the uniformity of the phase distribution of mullite and glass. [1]
Q:What are the varieties of polycrystalline mullite?
Chemical composition AI2O3:72 ~ 74%AI2O3+SiO2:~99.6%Main crystalline phase mulliteThe fiber diameter is 2-3.8The specific surface area is 35.5M2/g (1000 DEG C)The burning shrinkage rate was ~1.0% (1500 x6hr)Bulk density 60-100kg/M3The temperature is 1500 degrees centigrade

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