High Alumina Refractory Brick for foundry

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
1 m.t.
Supply Capability:
10000 m.t./month

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Product Description:

Description:

High Alumina Refractory Brick for foundry are high performance refratory products manufactured with unique shot removing and vacuum forming process, provide excellent high temperature stability, extra low thermal conductivity and compressive strength.

 

Advantages of High Alumina Refractory Brick:

High refractoriness.

Good spalling resistance and wear resistance.

Good corrosion resistance.

Good thermal shock resistance.

 

Applications:
High Alumina Refractory Brick is highly applied in below:

Steel furnaces

Iron making furnaces

Glass kiln

Ceramic tunnel kiln

Cement kiln

 

Payment term:T/T 30 deposit after order confirmed,the balance after goods ready before shipping,or L/C, or Western Uninon for small amount.

Lead time:Normally in 5-10 days after deposit received

Sample apolicy:Sample are always available for each modle

Shipping port: Tianjing

 

Technical Data Sheet:

Item

High Alumina Refractory Brick for foundry

0.6

0.8

1.0

1.3

Al2O3 (%)

40

40

40

40

Fe2O3 (%)

1.5

1.5

1.2

2

SiO2

55

55

55

55

Bulk Density (g/cm3)

0.6

0.8

1.0

1.2

Apparent Porosity %

70

60

55

50

Cold Crushing Strength (Mpa) ≥

2.0

2.5

3.0

4.0

Reheating Linear Change (%)°C X 12H ≤

1300

-0.5

1350

-0.5

1350

-0.9

1350

-0.9

Thermal Conductivity((W/m.k)(1000°C)

0.33

0.60

0.45

0.80

Max Service Temperature (°C)

1200

1280

100

1350

 

 

 

 

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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 should be used as binder for making high alumina bricks?
In addition, high alumina micro powder can be used as binding agent, or high alumina micro powder and clay powder are prepared according to a certain proportion, and synthetic mullite is used as bonding agent. With these binders, high alumina bricks without two expansion can be prepared.
Q:Is glass wool inorganic thermal insulation material?
The characteristics of glass wool, glass wool is the molten glass fibrosis, the formation of cotton like material, chemical composition of glass, is a kind of inorganic fibers. With good forming, small volume density, thermal conductivity, both thermal insulation, sound-absorbing performance, corrosion resistance, chemical stability.
Q:What is the price of the latest thermal insulation material?
There are many kinds of insulation materials, and the price will fluctuate with the market. Small quantities of inquiry or procurement, then go directly to the local thermal insulation market, a wide variety of prices are basically the market price.
Q:What is the density of a super high alumina brick and what is the price?
Of course, the transaction price, please choose refractory brick manufacturer is better.
Q:Is there a big difference between two high alumina brick and one high alumina brick?
The difference between the two kinds of high alumina bricks is great. I perennial in Zhengzhou was responsible for the production and sale of colt refractories
Q:Which is faster for heat transfer between corundum bricks or high alumina bricks?
There must be a difference. They vary in color from the amount of aluminum, the weight, the temperature, and the color.
Q:Which is better, the soft core or the hard core?
When the current through the wire, it will produce a magnetic field in the vertical plane space of the wire, if there is a current two wire close by in the same direction, because they produce a magnetic field in the direction is opposite, it will produce a repulsive force is due to the magnetic field force. They will mutually inhibit current intensity of the other party, caused by the reduction of current in the wire, this inhibition of each current intensity, we called wire inductance. When the AC current line frequency is high, the inductance is stronger.
Q:What are the common thermal insulation materials for thermal conductivity?
The vacuum heat insulation plate is a kind of high efficiency thermal insulation board made of inorganic fiber core material and high resistance gas composite film. It is made of vacuum encapsulation technology and covered with special interface mortar.
Q:What is fireproof concrete?
A series of concrete with fire resistance and heat resistance is made of Portland cement series as cementing material and heat-resistant material as aggregate. Silicate fireproof heat-resistant concrete with Portland slag cement, Portland cement and water glass as cementing material, broken clay brick, clay, cement clinker, broken high alumina brick as aggregate.

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