Standard Low Density Mullite Brick

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Product Description:

Specifications

1.Al2O3 38-45
2.Excellent thermal stability
3.Excellent insulating performance

                  Brand

Quality

JM23

JM26

JM28

JM30

Classification Temperature (°C)

1260

1430

1540

1650

Bulk Density (g/cm3)

0.55

0.78

0.88

1.03

Cold Crushing Strength (Mpa)

1.2

1.6

2.1

2.5

Modulus of Rupture (Mpa)

0.9

1.4

1.6

2.1

Reheating Linear Change (%) CT-30°CX 8H

1230°C

-0.5

1400°C

-0.5

1510°C

-0.5

1620°C

-0.9

Thermal Expansion1000°C(%)

0.5

0.7

0.8

0.9

Thermal conductivity(W/m.k)

400°C

0.14

0.27

0.32

0.41

600°C

0.16

0.29

0.34

0.43

800°C

0.18

0.31

0.36

0.44

1000°C

0.20

0.33

0.38

0.45

Al2O3 (%)

37

58

67

73

Fe2O3 (%)

1.0

1.0

1.0

0.5

Tolerance          

>250mm  ±1.0mm  <250mm  ±0.5mm

Corner edge damage: a+b+c< 30mm


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Q:application of phosphate refractory bricks
The 4 properties of phosphate refractory bricks: (1) high strength wear resistance (2) and chemical erosion (its alkali resistant ability is better than that of clay brick and high alumina brick) (3) and good thermal shock resistance (4) high load softening temperature in rotary kiln, kilneye, kiln Zone door cover, cooling machine and lining refractory brick falling parts easy to loose
Q:refractory bricks of fireclay
According to the preparation process, it can be divided into bricks, high alumina brick, magnesia brickand so on, such as refractory clay brick, and ordinary brick; according to the shape and size, it can be divided into standard brick and silica brick, it can withstand all kinds of physical and chemical changes and mechanical action at high temperature; silica brick can be used as high-temperature building materials and structural material to build kiln and kinds of thermal equipments. Refractory material and fused brick with a certain shape and size are called refractory brick for short.
Q:what is application of high alumina refractory brick?
reverberatory furnace 1, close to the neutral refractory, but because mullite crystallization has not formed the network organization, so the load softening temperature is not higher than silica brick. the refractoriness of high alumina brick is higher than fireclay brick and semi-silica brick, mainly used in blast furnace, nozzle brick,etc. it is up to 1790 C~ 1750, can resistance to acid slag and alkaline slag erosion. hot blast furnace, blast furnace, high alumina brick are widely used for producing open-hearth furnace regenerative bricks, because it contains SiO2, low impurity content, which belongs to high-grade refractory materials, electric furnace. 2, plug head used in pouring system . In addition. 3, because high aluminum products contains more Al2O3, forming less fusible vitreous body, so the high load softening temperature is higher than clay brick. because rotary kiln lining, slag resistance of high alumina refractory brick contain more Al2O3, so the ability of anti alkaline slag is weaker than anti acid slag. so it has a wide range of application. high alumina refractory brick due to the following performances
Q:What is refractory brick? What is refractory clay? ?
Refractory bricks and refractory soil are all refractory materials. Generally they can be seen in the coke oven. The refractory brick is generally yellow. A steel brick is a kind of refractory brick. Its heavier several times than ordinary brick .
Q:The shape and size of general used refractory brick
240mm * 115mm * 53mm. and the width is 115mm, the shape and size of mechanism red brick is: 230mm * 114mm * 65mm, the outline dimension of special refractory brick is of 65mm thickness according to the national standard: Length is 230mm. That is: Length is 240mm. General type refractory brick's outline dimension is of 114mm width. That is, thickness is 53mm: 345*328*97
Q:How to wipe off the white paint on the refractory brick (red).
Wallpaper knife should be ok
Q:what is consequence of high load and soft low of high alumina refractory brick ?
softening, if not up to the design requirements, may cause vicious incident like the collapse of the stove in use. the full name is softening temperature under a fixed load, as the name suggests, it is the softening temperature after adding the load.
Q:Can refractory bricks be used when it cracks for 1cm
3, If the crack is caused by burning or drying, then it can't be used. While if the carck is caused by refractory brick molding, it still can be used. 4, the crack is caused by refractory bricks raw materials.
Q:Blend 12% fireclay and 88% refractory cement. Moderate water and mud are used to pile up firebricks?
Refractory bricks can irectly be liner. Lightweight mullite brick can be used for relatively longer time. If there is no mullite brick, use mud said above for some time, then continue to use by patching up.
Q:What is the role of refractory brick, whether is there any books to introduce refractory bricks
Fire resistant, flame retardant, used for building stove and firewall,

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