Refractory Alumina Fire Brick/Duty Fireclay Brick

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
20 m.t.
Supply Capability:
20000 m.t./month

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Product Description:

Product Description


Refractory Brick / Super Duty,Dry Press Fireclay Brick


YUFENG Refractory's Super Duty Fireclay Brick meeting ASTM regular type classifications,


Key Features:


High Strength,

Lower shrinkage,

Good Alkalis Resistant,

Good resistant to Thermal Shock


Typical Applications:

Carbon baking pit furnace fluewalls and Head Walls, Air Heaters, Combustion Chamber, Boilers, Stacks, etc


Chemical Compositions (Approximate)

 

Silica (SiO2)             53.10%

Alumina(Al2O3)       42%

Iron Oxide(Fe2O3)   2%

Titania (TiO2)          1.9%

Lime (CaO)              0.3%

Magnesia(MGO)      0.4%

Alkalies (Na2O+K2O) 0.6%


Physical Properties (Typical)


Pyrometric Cone Equivalent

Orton Standard Cones 34

Temperature Equivalent 3187º F(1753º C)


BulkDensity 139lb/ft3   

                    (2.22g/cm3)


Cold Crushing Strength: 4000lb/ft2

                                       (27.5Mpa)

Permanent Linear Change at 2910º F (1600º C) -0.3%


Apparent Porosity 22-24%


Hot load Test Deformation at 2640º F (1450º C) -0.2 to -0.7%

 

 


why us

1. We are a manufacturer, which can control the cost easilier than trade company also can give you anwer more quickly.

2. As a manufacturer, we know much in technique and can give you more support in technique problem.

3.We establish the company and began to produce refractory materials since 1988. We have longtime and mature experience  for entire production.

4.Our products are complete in specifications with various of sizes.

5. We enjoy a good reputation in the customers in domestic and overseas markets.


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Q:What are the characteristics of high alumina bricks?
A neutral refractory with an alumina content of more than 48%. Made from alumina or other raw materials of high alumina content; formed and calcined.
Q:How much is the bending temperature aluminum silicon carbide brick for torpedo car
High alumina brick is made of superfine alumina, fused corundum and fused mullite as main refractory materials.
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:How does the physicochemical index change when the high alumina brick is used at high temperature?
When the high alumina brick is used at high temperature, the physical and chemical indexes and other constants will not change if the temperature is in the physical and chemical indexes and the softening temperature of the load.
Q:Difference between low creep high alumina brick and ordinary high alumina brick
The emphasis is on the physical and chemical indexes of low creep and high alumina bricks. The physical and chemical indexes of the high alumina bricks are different, too. They are DRL-1550And LZ-75 perform GB GB/T2988-2012
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:Which thermal shock stability of clay brick and high alumina brick is good?
The product has the advantages of high temperature, little creep, strong corrosion resistance and good thermal shock resistance, and is suitable for large and medium-sized hot blast stoves.Thermal shock stability is much better than clay brick.
Q:Application characteristics of high alumina brick
Slag resistance. Due to the high alumina brick products in the three oxidation of two aluminum is neutral and high content, so this material products for acid-base slag corrosion resistance.
Q:What are the common thermal insulation materials for thermal conductivity?
Aerogels are known to be the lightest solid materials in the world. It is made of nanometer silica aerogel as main material and is compounded by special process. The utility model has the advantages of high temperature resistance, low thermal conductivity, small density, high strength, green environment protection, waterproof and non inflammable performance. At the same time, with excellent sound insulation and shock absorption performance, it is now widely used in metallurgy, chemical, national defense, aerospace and other fields, is an indispensable high-performance insulation materials.

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