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:Magnesia brick
General can be divided into sintered magnesia brick (also called burnt magnesia brick) and chemically bonded magnesia brick (also known as the two major categories of not burned magnesia brick). Purity and high firing temperature of magnesia, due to the direct contact of periclase grains, known as direct bonded magnesite brick; made of fused magnesia bricks called electrically fused magnesite brick.
Q:How much is one square meter of acidproof tile?
Acid proof brick is made of quartz, feldspar, clay as the main raw material, acid resistant materials by high temperature firing, with acid of high, low water absorption, is not easy to be oxidized at room temperature, is not easy to be medium pollution characteristics.
Q:In 2016, a few of the traditional refractory materials will be able to survive
From the year 2015 to the year 16 the end of the year, refractories industry presents two kinds of situations: one is a small business, a single product variety and equipment, to meet the demands of both environmental protection and the downstream market, such enterprises are generally in the Qing state inventory;
Q:Is acid proof brick alkali resistant?
Absolutely neutral materials do not react with acids, nor react with alkalis, and do not react at higher pressures and temperatures. Of course, this condition is not endless.
Q:Zirconium corundum 25 content or 40 content, how to distinguish in appearance?
It is in the production process, zirconium corundum bricks are likely to cause pollution.
Q:Acid proof brick, acid resistant porcelain in the paste process with no seam
As the base layer, bonding layer and acid brick itself thermal expansion, cold shrinkage coefficient is very different, in 1-2 years of hot and cold tension failure, too dense paving easily lead to acid brick swelling, fracture and other issues
Q:What is the difference between high alumina brick and clay brick?
Lightweight high alumina bricks are usually made of high alumina bauxite clinker with a small amount of clay. After grinding, the bricks are poured and shaped in the form of slurry by gas or foam method. They are fired at 1300~1500 DEG C. Sometimes industrial alumina can be used instead of some bauxite clinker. Used for lining and insulation of masonry kilns, as well as for areas where there is no strong, high temperature molten material erosion and erosion. When contacting the flame directly, the surface contact temperature shall not be higher than 1350 degrees centigrade.
Q:What is the problem about splintering when the refractory brick is fired?
There are many bubbles inside the refractory brick, it is also possible that the brick itself is not up to the standard about volume density, then refractory brick fragmentates. There are many reasons, may be in the process of repression
Q:Can porous clay bricks be made of 12 walls to bear weight?
Porous brick using cement as binder, and sand, stone (aggregate) by adding water and mixing, molding and maintenance made with a plurality of rows of holes of the concrete products; after ordinary and lightweight aggregate concrete small hollow block and a variety of new wall materials.
Q:What are kiln bricks?
Referred to as refractory brick. Refractory made from refractory clay or other refractory material. Light yellow or brownish. The utility model is mainly used for laying smelting furnaces, and can withstand high temperature between 1580 DEG C and 1770 DEG C. Also called brick. Refractory material of a certain shape and size. According to the preparation process can be divided into bricks, brick, electric melting brick (Rong Zhuzhuan), the refractory insulating bricks; according to the shape and size can be divided into standard brick, brick, brick and other specific type. It can be used as high temperature building materials and structural materials for construction kilns and various thermal equipments, and can undergo various physical, chemical and mechanical changes at high temperature. For example, refractory clay brick, high alumina brick, brick, brick etc..

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