Low Conductivity Mullite Refractory Birck

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

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Product Description:

CNBM conforms strictly to the requirements of ISO 9000 quality control system during the production. MSDS is also available if you want. The thermal insulation fire clay brick meet with the requirements of ASTM & JIS standards. So pls stay cool with our quality.

Brief discription for Alumina Fire Brick

CNBM Alumina Fire Brick are classified according to alumina content ranging from 48% to 90%.

CNBM Alumina Fire Brick are commonly used in blast furnace, hot blast furnace, the roof of electric furnace, teeming ladle, rotary kiln, regenerator, etc.



Brief features for Alumina Fire Brick

Low thermal conductivity   

Excellent acid and base slagging resistance

High refractoriness

Excellent thermal shock resistance  

Excellent mechanical strength

Good spalling resistance and wear resistance.

Good corrosion resistance.

High-temperature creep rate is quite low.

Good volume stability at high temperature.

Low bulk density, low thermal conductivity, good thermal insulation performance.



Technical data for high aluminia bricks

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

 

Why us

Professional fire brick manufacturer. We have being specialized in producing refractory fireclay brick for more than 40 years so that we can guarantee a stable quality.

Guaranteed quality. Our production process conforms strictly to the requirements of ISO9000 quality management system. Quality inspection is carried out in every links of our production. SGS third party inspection is available.

 Sound after sales service. We provide sound after sales service. We provide 24 hours’ consultation service. We are ready to answer your consultations at any time.

 

Low Conductivity Mullite Refractory Birck

Low Conductivity Mullite Refractory Birck


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Q:What is the difference between cement foamed thermal insulation board and thermal insulating brick?
The main difference between cement foamed thermal insulation board and insulating brick is that the shape is different, one is plate, and the other is brick. Both are new walls to achieve the effect of energy conservation and insulation.
Q:What is the price of concrete self insulation bricks
Insulation brick prices also have a great relationship with the material and workmanship, such as clay brick price is much lower than high alumina brick, mullite and corundum brick prices will be higher.
Q:There are several construction techniques for exterior wall insulation
Exterior wall sandwich insulation technologyThe exterior wall sandwich insulation is to place the heat preservation material between the inner and outer wall sheets of the outer wall, and the inner and outer walls can be made of concrete hollow blocks.Advantage:1) to the inner wall piece and the heat preservation material forms the effective protection, to the heat preservation material selection material request is not high (source: Chinese heat preservation net), polystyrene, glass cotton and urea aldehyde field casting material and so on may use;2) the construction season and construction conditions are not very high, and it does not affect the winter construction. In Heilongjiang, Inner Mongolia, northern Gansu and other cold areas have been given some applications.Shortcoming:1) in non cold areas, this kind of wall is thicker than traditional wall;2) the inner and the outer wall pieces need to be connected by connecting pieces, and the structure is more complicated than the traditional wall;3) periphery structure of "bridge" more. In the earthquake zone, building circle beam and constructional column settings, "bridge" more efficiency of thermal insulation materials is still not fully play.4) outside the walls by the outdoor climate, the temperature difference between day and night and the large temperature difference between summer and winter, easy to cause the wall cracking and leakage of rainwater.
Q:How shall the sintered porous self insulation bricks be laid at the bottom of the beam?
And the concrete beam should be broken brick masonry. Top packing.
Q:The difference between ordinary and diatomite brick refractory brick?
Insulation products made from diatomaceous brick and porous diatomite. The main raw material is natural porous diatomite, and then a small amount of clay and fuel are added. The volume density of diatomite brick was 0.7g/cm3, compressive strength at room temperature is 1 ~ 2MPa, the coefficient of thermal conductivity at 400 C for 0.13 ~ 0.20W/ (M - K), the apparent porosity is greater than 70%, the coefficient of thermal expansion (1280 degrees) 0.9 x 10 - 6 DEG -1, refractoriness is greater than 1250 DEG C. Mainly used in industrial kilns and other thermal equipment, thermal pipes insulation materials, generally withstand the hot surface temperature of about 1000 degrees celsius. Mainly used in industrial kilns and other thermal equipment, thermal pipes insulation materials, generally withstand the hot surface temperature of about 1000 degrees celsius.
Q:Energy saving bricks or bricks?
Insulating bricks are mostly hollow or light bricks.It can be said to be energy-saving bricks, including insulation bricks
Q:Is it necessary to abolish the technical regulations for the construction of self thermal insulation masonry building with sludge sintering insulation bricks?
Silt sintering brick insulation brick is made from river mud, city sludge, mud as the main raw materials, added according to a certain proportion of siliceous inorganic binder after aging, extrusion blank, blank by cutting, drying, sintering and extrusion molding machine. The utility model has the advantages of energy saving, resource saving, favorable for developing circular economy and comprehensive utilization of resources, high micropore rate, good product heat insulation performance and heat insulation performance, etc..
Q:Why does the water drop first and then rise when the boiler fires?
This is the reason for the zero water level gauge line below the center line of the drum. Under normal conditions for water and evaporation is balanced, after the fire, reduce the amount of steam water mixture into the drum in the evaporation decreased rapidly, reduce the volume of water bubbles, sudden contraction, drum water level decreased rapidly. But not to water change or increase (automatic), water balance is broken, the water level will rise rapidly.
Q:What's the price of lightweight refractory bricks?
In addition, general price comparisons are meaningless and need to be based on the use of demand = quality of products. After all, good quality is the driving force of continuous production.
Q:What materials are used for roof insulation
The other one is inorganic insulation materials, such as Portland, rare earth insulation, the thickness should be 5 cm or more, up to the high cost of auxiliary materials of construction, to reinforce, new inorganic insulation material, the material thickness, on the line of 2-3 cm, direct smear on the top of the house, without auxiliary material, than the price of wool, high aluminum silicate cotton.

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