• High Quality Best Price High Alumina Insulated Refractory Fire Bricks System 1
  • High Quality Best Price High Alumina Insulated Refractory Fire Bricks System 2
High Quality Best Price High Alumina Insulated Refractory Fire Bricks

High Quality Best Price High Alumina Insulated Refractory Fire Bricks

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
2000 pc
Supply Capability:
8000000 pc/month

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Quick Details

Place of Origin:

Shaanxi, China (Mainland)

Shape:

Brick

Material:

Alumina Cement

SiO2 Content (%):

0.1~1.4%

Al2O3 Content (%):

48%-85%

MgO Content (%):

0.1~1.4%

CaO Content (%):

0.01

Refractoriness (Degree):

1770°< Refractoriness< 2000°

CrO Content (%):

0.1~0.3%

SiC Content (%):

0.1~1.4%

Model Number:

DFL-LZ

Brand Name:

CNBM

size:

LZ-85, 80, 70, 65, 55, 48

apparent porosity:

23% Max

refractoriness:

1750℃ Min

refractoriness under load:

1420℃ Min

cold crashing strength:

35 MPa Min

Al2O3:

48% Min

thermal shock resistence:

4-10

reheating linear change:

1450℃x2 +0.1 -0.4

experience:

over than 15 years

quality system:

ISO9001-2008





Packaging & Delivery

Packaging Details:in pallet for sea ship
Delivery Detail:15-45 days after get customers's deposit

High alumina bricks

description

Specifications of high alumina bricks                                      

1. AL2O3 : 45%-80%. 
2. Can according to customers' requirements. 
3. Used for steel ladle lining.

High alumina steel ladle fire brick,Steel ladle brick,Ladle brick

High Quality Best Price High Alumina Insulated Refractory Fire Bricks

 

Application of high alumina bricks                                          

High alumina brick is widely used for Widely used in blast furnaces, Hot Blast Stove, Steel ladle lining, Reheating furnace, Cement kiln,Tunnel kiln,boiler, coke oven, carbon furnace,glass kiln , Steel smelting furnace and various kiln lining and thermal technical equipment, etc.

Features of high alumina bricks                                               

1) High-temperature endurable .

2) Good thermal shock resistance .

3) Good resistance to abrasion and corrosion.

4) Good thermal shock and thermal spalling resistance.

5) High mechanical strength.

6) Good volume stability at high temperature.

 

Physical and chemical index of high alumina bricks               

Item

Specification

LZ-85

LZ-80

LZ-75

LZ-65

LZ-55

LZ-48

Al2O3

85

80

75

65

55

48

Apparent density

23

22

23

23

22

22

Cold crushing strength

65

55

50

45

40

35

RUL

1600

1530

1520

1500

1450

1420

PLC

1500.C*2h

0.1~-0.4


1450.C*2h


0.1~-0.4

Standards of Type Brick:

 

230mmx114mmx65mm

230mmx114mmx75mm

 

Product Range: SK32,SK34,SK35,SK36,SK37,SK38

 

Specail Shape of High Alumina Brick                                       

High Quality Best Price High Alumina Insulated Refractory Fire Bricks


Q:What is the difference between corundum and high alumina??
The main component of high purity 99 corundum brick is corundum sand,90 corundum brick is mainly composed of corundum sand and a small amount of Suzhou soil, mullite.
Q:What are ordinary bricks, refractory bricks, hollow bricks?
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..
Q:The difference between ordinary and diatomite brick refractory brick
To say the difference, the material is the biggest difference. There are diatomite brick density, compressive strength of small brick kiln belongs to the outer thermal insulation, and heavy refractory brick kilns for multi village in direct contact with the flame, high temperature resistance, good compressive strength, but no insulation. Hope to help you.
Q:What are the reasons for the decline in the performance of high alumina bricks when we use high alumina refractory bricks?
Quality requirements for aluminium bricks of different grade. 2, high aluminum powder and high alumina aggregate and other materials of reasonable proportion, to reach the production requirements.
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 lining structures of lime rotary kilns and what are the requirements for refractories?
The current configuration of domestic calcining active lime rotary kiln refractories are as follows: the discharge end of low cement high alumina castable with 3% steel fiber; the cooling zone and the firing zone: dry magnesia spinel brick with high aluminum brick with high temperature; preheating: high alumina brick; low temperature preheating zone: clay brick light clay brick; feeding end: low cement high alumina castable with 3% steel fiber; in addition, brick size also have the corresponding requirements; dimensional tolerances: dimensional tolerances used in different parts of the requirements are not the same, the general control in 2mm; corner damage: general permit edge damage 40mm and 5mm deep within angle loss in the hot and cold surface is allowed to have only one, three edges and the length of not more than 50mm; there are cracks parallel to the use of surface crack is not allowed, cracks of brick surface are allowed.
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:How to make refractory bricks and boiler wall adhesion more firm?
If the condition, the user heat-resistant steel welding grip nails, expansion joints can not be too big.. Also to use high temperature aluminum brick, high temperature resistance, but also to extend its use cycle.
Q:Which is better, the soft core or the hard core?
The use of each of the single core copper wire with low line, 1.5 square with cap line home, socket 2.5 square, air conditioning to walk alone line 4 square can, when the terminal box into a socket with leakage protection switch, prevent overload and short circuit.
Q:Density of high alumina bricks
The density of high alumina bricks is determined according to the price. The average density is between 2.3-2.5g/cm3. The higher the density, the higher the price, the higher the aluminum bricks are in the industry. More than 2.4 are required.

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