75% -80% AL2O3 for Steel Ladle Linings High Alumina Refractory Brick

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China main port
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TT OR LC
Min Order Qty:
2000 pc
Supply Capability:
800000 pc/month

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Product Description:

Quick Details

Place of Origin:

Shanxi, China (Mainland)

Shape:

Brick

Material:

Alumina Block

SiO2 Content (%):

0

Al2O3 Content (%):

55-80

MgO Content (%):

0

CaO Content (%):

0

Refractoriness (Degree):

1770°< Refractoriness< 2000°

CrO Content (%):

0

SiC Content (%):

0

Model Number:

CL-55 CL65 CL75 CL80

Brand Name:

CNBM

AL2O3:

55-80%





Packaging & Delivery

Packaging Details:ABOUT 1MT WOODEN PALLET
Delivery Detail:WITHIN 45DAYS

Specifications

High Alumina Bricks for Steel Ladle Linings 
AL2O3:55-80% 
ISO9001-2008

75% -80% AL2O3 for Steel Ladle Linings High Alumina refractory brick75% -80% AL2O3 for Steel Ladle Linings High Alumina refractory brick75% -80% AL2O3 for Steel Ladle Linings High Alumina refractory brick 

HIGH ALUMINA BRICKS FOR STEEL LADLE LININGS

Goods Brand

CL-55

CL-65

CL-75

CL-80

PZCL-78

Al2O3(%) min

55

65

75

80

78

Refractriness under load 0.2 Mpa ( °C) min

1470

1490

1510

1530

1550

Apparent porosity (%) max

22

28

28

24

21

Cold Crushing strength (MPa)min

45

35

40

50

70

Shrinkage after reheating  (%) max

1450°Cx2h

0.1~0.5

***

***

***

***

1500°Cx2h

***

0.1~0.5

0.1~0.5

***

***

1550°Cx2h

***

***

***

0.1~0.5

0.4~0.3

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3. Our professional technicians will answer your entire enquiry in patient.

4. To meet the refractory solutions, we can serve as your instructions.

5. Protection of sales area and private information for our entire customer.

 

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Q:How to test the aluminium bricks of high alumina refractory bricks?
Before making bricks, the raw materials are usually tested and tested to see if the aluminum content is up to standard
Q:Use of high alumina refractory bricks?
High alumina refractory brick in Al2O3 more, close to neutral refractory material, can resist acid slag and alkaline slag erosion, because it contains SiO2, so alkaline slag ability than acid resistance slag ability less.It is widely used in building blast furnace, hot blast furnace, furnace top, blast furnace, reverberatory furnace and rotary kiln lining. In addition, high alumina bricks are widely used as furnace regenerative checker, pouring system for plug nozzle, etc..
Q:What are the grades of high alumina bricks?
According to the size of high aluminum brick is divided into: standard brick, special-shaped brick.
Q:Which is better, the soft core or the hard core?
The wire has two kinds of hard core and soft core, the hard core line is only one wire core, and the soft core line has a plurality of wire cores. For the same sectional area, the 7 core is more than the more than 30 core. There is a difference in use. Generally used for DC is the use of hard core line, because of its small line consumption; and for communication, we should use soft core line, but also in order to reduce its line consumption
Q:What are the specifications for bricks?
Thecompressive node as a new type of building energy-saving wall materials, which can be used for masonry walls, but also has good thermal properties, in line with the construction of the building module, reduce the loss in the process of construction, improve work efficiency; the hole rate reached more than 35%, can reduce the weight of the wall, save the foundation engineering cost. Compared with common sintered porous brick, it has the characteristics of heat preservation, heat insulation, light weight, high strength and high construction efficiency. The product is made of shale as raw material. It is produced by high vacuum extrusion molding machine and one yard firing process
Q:Application characteristics of high alumina brick
Reheating line change. If the firing temperature of high alumina brick products is enough and the firing time is enough, the volume is stable, the change of the reheating line is small; on the contrary, the residual shrinkage of clay brick products is caused by recrystallization.
Q:How are the grades of high alumina bricks differentiated?
In China, the content of Al2O3 in high alumina brick is usually divided into three categories: I, etc. - Al2O3 content > 75%; II, etc. - Al2O3 content is 60 to 75%; III and so on - Al2O3 content is 48 ~ 60%.
Q:Aluminum content 38. silicon content 55 What refractory bricks?
High alumina brick:The mineral composition of the high alumina brick is determined by the bauxite used. The mineral composition of the clinker is usually mullite, corundum and glass. The theoretical composition of mullite is Al2O371.8%, SiO2 28.2%, and its melting decomposition temperature is 1840 DEG C. With acicular crystal, network cross structure, high temperature state showed better strength. Corundum in the form of alpha -Al2O3, melting point of 2050 degrees, hardness of Mohs 9, showing a granular and columnar crystal, has good chemical stability, acid, alkaline slag have a certain resistance. Based on the composition of mullite minerals, the phase composition of high alumina brick can be judged according to the content of Al2O3. 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:What is fireproof concrete?
According to the different properties of fire resisting and heat resisting concrete, they can be divided into silicate, aluminate, phosphate, sulfate, chloride, sol and organic substance, fireproof and heat-resisting concrete, etc.. The following are mainly used silicate, aluminate, phosphate, sulfate fire, heat-resistant concrete.
Q:What are the lining structures of lime rotary kilns and what are the requirements for refractories?
The physical and chemical properties of refractory materials used in rotary kiln are as follows: physical and chemical properties of refractory materials used in rotary kilnMaterial name: high temperature compressive strength (MPa), softening temperature (DEG C), thermal shock resistance (1100 DEG C, cold water), sub volume density (g/cm3)Magnesia spinel brick is greater than or equal to 50 is greater than or equal to 1700 = 12 = 2.95High alumina brick is greater than or equal to 75 = 1520 = 8 = 2.57High aluminum bricks more than 50 = 1700 = 12 = 1The clay brick is greater than or equal to 30 = 1400 = 12 = 2.30

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