Fireclay Brick with Al2O3 Content around 35%

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Qingdao
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TT or LC
Min Order Qty:
17 m.t
Supply Capability:
10000 m.t/month

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Product Description:

FIRE CLAY BRICK

CMAX fireclay bricks are made from clinker clay. The alumina content ranges from 36% to 48%.

 

Application
CMAX fireclay bricks are commonly applied in blast furnace, hot blast furnace, teeming ladle, glass furnace, etc.

 

Features
Low thermal conductivity        High refractoriness  

High mechanical strength       Excellent thermal shock resistance

ITEM

UNF42

UNF46

ZGN42

RN40

TDL45-12

Refractoriness,

1730

1750

1750

1730

1760

Bulk Density, g/cm3

2.15

2.25

2.3

2.15

2.37

Apparent Porosity, %

22

20

15

24

12

C.C.S, Mpa

30

35

58

28

68

Refractories Under Load (0.2Mpa)

1400

1420

1450

1430

1500

Reheating Linear Change, %

1400x2h              0.1-0.4

1430x2h              0-0.1

1450x2h              0-0.2

1350x2h       0-0.3

1450x2h              -0.1+0.05

Al2O3 Content , %

42

46

42

40

45

 

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Fireclay Brick with Al2O3 Content around 35%

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Q:Lining of refractory bricks in rotary furnace
About 7000~10000 furnace in steelmaking, the level of maintenance and management of each plant is different! Refractory thinning relates to safety issues (equipment and people safety). i am not clear about zinc smelting! Zinc smelting may use rotary kiln! blow the zinc powder into the kiln.
Q:What is the advantage for ceramic fiber material compared with refractory brick?
Heat capacity; excellent thermal shock resistance, good chemical stability, bearing sudden cooling and heating, without oven heating and cooling ,high speed, energy saving, is 1/8 of refractory brick, construction is simple. ceramic fiber materials and refractory brick belong to refractory insulation materials; low thermal conductivity: Low bulk density, ceramic fiber material is a new type of lightweight thermal insulation material, is one of the 10 points of lightweight refractory brick,
Q:What is the density of the high alumina refractory brick?
it depends on the aluminum content, the higher it contains, the larger the density is. the hjghest is 3, the lowest is 2.
Q:How much is the silica powder in refractory bricks.
It's not easy to construct, also need to consider the technical and economic indexes, DH3, 1 kg silica powder replaces 1 ~ 3 kg cement, which is the reason why silicon powder was not used and spreaded in concrete in past, choose some silica power fume. In general, with the smoke escaping by special capture device for collecting and processing To determine the mixing method of silica powder, when mixing silica powder, you should find out the optimal dosage in order to obtain the best results, as the study, the content is 5% ~ 30%, H, the mixing of super high strength concrete, use same amount of silicon powder to replace equal cement to main same fluidity, Microsilica or Silica Fume, it is mainly according to the design requirements, and does not reduce the amount of cement, sand and stone to adjust the optimal dosage of water reducer, when deciding the best mixing amount of silica fume, the concrete is too sticky, most use naphthalene water reducing agent.
Q:What are the differences between diatomite brick and ordinary refractory bricks?
The volume density of diatomite brick is 3.9 * 10-6, good compressive strength, belongs to the small outer insulation, spinel brick.
Q:can diatomite brick be used as thermal insulation refractory brick?
yes, it has good thermal insulation the raw material is cheap, diatomite brick is a kind of thermal insulation refractory brick with good performance.
Q:What are the weak points of clay bricks?
Clay bricks are clay products with Al2O3 content of 30%~40% aluminum silicate material. Clay brick is made of 50% soft clay and 50% hard clay clinker, according to the requirements of a certain particle size. After molding and drying, the clay brick is burnt at high temperature 1300~1400 degrees celsius. The mineral composition of clay brick is mainly kaolinite (Al2O3, 2SiO2, 2H2O) and 6%~7% impurities (potassium, sodium, calcium, titanium, iron oxides). The sintering process of clay brick is mainly the process of the continuous dehydration of kaolinite and the formation of crystallization of mullite (3Al2O3. 2SiO2).
Q:why the color of refractory brick is white after high temperature firing when the meteorite is black after the burning?
There are different reasons. Meteorolites can mainly be divided into three types, iron meteorites (iron nickel alloy): Stone meteorites (the main component is silicate), and stony iron meteorites(the mixture of iron and silicate)
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 are the physical and chemical properties of refractory bricks
The thermal shock stability, linear change on reheating, softening temperature under a fixed load, compressive strength under normal strength refractoriness

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