High Alumina Brick with Al2O3 content 65-70%

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

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General Information
CMAX high alumina firebricks are classified according to alumina content ranging from 48% to 90%.

Feature
Low thermal conductivity   
Excellent acid and base slagging resistance
High refractoriness    
Excellent thermal shock resistance    
Excellent mechanical strength

Application
CMAX high alumina bricks are commonly used in blast furnace, hot blast furnace, the roof of electric furnace, teeming ladle, rotary kiln, regenerator, etc

 

ITEM

UAL48

UAL55

UAL65

UAL75

UAL80

UAL85

ALP80

Refractoriness,

1750

1770

1790

1790

1810

1810

1810

Apparent Porosity,%

22

22

23

23

20

20

18

C.C.S, Mpa

39

44

49

53

55

60

100

Refractories Under Load (0.2Mpa),℃

1420

1470

1500

1520

1500

1520

1550

Reheating Linear Change,%

1450x2h              0.1-0.4

1500x2h              0.1-0.4

1500x2h              0.1-0.4

1500x2h       0.1-0.4

1550x2h              -0.5+0.5

1550x2h              -0.5+0.5

1550x2h              -0.5+0.5

Al2O3 Content , %

48

55

65

75

80

85

82

 High Alumina Brick with Al2O3 content 65-70%

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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:Can refractory bricks be used to pave roads or build a wall?
Complete refractory brick has standard size and it is heavier than ordinary red brick. the volume ratio is shrinking with change of temperature to crack and strength of brick with brick walls down enough for new
Q:How many squares of a ton refractory bricks?
About 2 tons , general one square clay brick is about 2 tons, from 2, one square corundum brick or magnesia bricks can reach 3 tons, it should say one square is how many tons. if it is high aluminum, then see the content of aluminum. It mainly sees what refractory bricks, because the volume and density of refractory bricks are relatively large.2 tons to 2
Q:Whether the fire bricks are needed to be poured before construction?
Refractory bricks do not absorb water, do not need to water, what's more, refractory bricks need special refractory mortar to build. Refractory brick is used in the high temperature furnace, you won't use it to build walls.
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:should clay or refractory cement be used to lay refractory bricks?
structure strength of this brick lining is not good, apply some refractory mud, only use some virgin clay and corundum, many of the traditional approaches are very simple, mullite and carbon slurry, the specific products are selected according to the selected material and water glass or organic binder. binding agent can choose phosphate, silica and high alumina, clay is one part of the refractory clay, there are many kinds of refractory slurry according to the material, clay-based mud does use refractory cement and corrosion resistance is low
Q:What is the difference between the refractory bricks, hand-made bricks and the machine pressure bricks?
Hand-made brick mainly produces brick that is not easy to produce molding Machine pressure brick adopts 100 tons of press machine to mold the density of hand-made brick is not enough, it's light; machine pressure bricks can only produce bricks that produce molding at a time, hand-made bricks mainly adopts hydraulic vibration molding machine
Q:What is light brick and what are the characteristics of light brick?
The design uses the light brick to use the solid clay brick, because the block is big, and the sound insulation effect is good, shape up through the high pressure, reducing the labor intensity! Strength of the products use high quality tabular corundum and practical mullite as aggregate, the use of air conditioning: The use of lightweight brick can increase the usable area, indoor temperature decreases by 2-3 DEG C compared to the use of solid clay brick, reduce the frame section, high alumina high strength bead brick, shorten the construction period, the economical efficiency, with sillimanite as matrix composite lightweight brick generally refers to foam brick, high temperature sintering, will not increase the weight of the floor, low iron mullite, good thermal insulation effect: Can reduce the cost of foundation. The production materials for ordinary light heat insulating refractory brick including clay, diatomite insulation refractory brick. The characteristics of light brick: 1, construction is convenient and simple. 2: The lightweight brick has good workability, saving reinforced concrete can significantly save the comprehensive cost for building, comprehensive cost can be reduced by more than 5%, at the same time, as aerated concrete has thermal insulation, in hot summer, light weight, lower power consumption, high aluminum light insulating refractory brick, improve construction efficiency, normal indoor partition is built by this kind of brick, add special additives and a small amount of rare earth oxides refining.
Q:buliding method of refractory bricks in boilers
Q:The shape and size of general used refractory brick
According to the national standard, the outline dimension of mechanism red brick is: length is 240mm, width is 115mm and thickness is 53mm. That is: 240mm * 115mm * 53mm. The shape and size of the ordinary refractory bricks are: Length is 230mm, width is 114mm and thickness is 65mm, that is: 230mm * 114mm * 65mm. The shape and size of special refractory bricks are: 345mm*328mm*97mm.

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