Refractory Bricks Cutting Low Thermal Conductivity

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10 m.t.
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200 m.t./month

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High Alumina Refractory Bricks  AL7 Low Thermal Conductivity


Brief discription for Refractory Bricks Cutting

CMAX refractory bricks cutting are classified according to alumina content ranging from 48% to 90%.

CMAX refractory bricks cutting are commonly used in blast furnace, hot blast furnace, the roof of electric furnace, teeming ladle, rotary kiln,regenerator, etc.


Brief features for Refractory Bricks Cutting

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 refractory bricks cutting 

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


Images/photographs for  refractory bricks cutting 


◆ breif images-different shape for different usage

Refractory Bricks Cutting Low Thermal Conductivity

Refractory Bricks Cutting Low Thermal Conductivity




Refractory Bricks Cutting Low Thermal Conductivity

Refractory Bricks Cutting Low Thermal Conductivity

◆ Packaging for refractory bricks 

Refractory Bricks Cutting Low Thermal Conductivity

Refractory Bricks Cutting Low Thermal Conductivity


◆  Producing Equipment for  refractory bricks

Refractory Bricks Cutting Low Thermal Conductivity

 ◆  Testing Mashines for high alumina bricks

Refractory Bricks Cutting Low Thermal Conductivity


FAQ

Q1:Are you a manufacture or trader?

A:Factory+trade(mainly factories,at the same time,we operates other related products).

Q2:Can we visit your factory?

A:Sure,welcome at any time,seeing is believing.

Q3:What's the MOQ of trial order?

A:No limit,We can offer the best suggestions and solutions according to your condition.

Q4:Is your company accept customization?

A:We have own factory and excellent technical team,and we accept OEM service.

Q5:How about your company's certification?

A:ISO9001 and Test Report,also we could apply other necessary certification.

Q6:How to slove the quality problems?

A:If the products are not confirmed to customer samples or have quality problems,our compay will be responsible to make compensation for it.

Q7:Can you offers samples?

A:Of coures,samples are free but freight paid by the buyers.

Q8:What is the service life of your bricks?

A:The service life of different bricks is unlike.It also depends on your using condition and method.


If you have any enquiry,please don't hesitate to contact us,we will provide our best products and services for you!!


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Q:How much is one ton of high alumina refractory brick?
High alumina refractory brick according to the different content of AL2O3 is divided into grade, grade one and grade two, and grade three high aluminum brick, Zhengzhou Kang Hui refractories factory price in 800-1900 yuan / ton, stable quality, are exported to the domestic and foreign markets.
Q:Are there any differences between insulating bricks and refractory bricks?
The refractoriness of insulating bricks is generally below 1400 tons, while the refractoriness of refractory bricks is above 1400 degrees. 3. density insulation bricks are generally lightweight insulation materials, the density is generally in 0.8-1.0g/cm3, and the density of refractory bricks are basically above 2.0g/cm3.
Q:The cloth blowing is not uniform on the lime kiln refractory brick is damaged it
People with the shaft kiln cement clinker kiln, because of small size, low calcination temperature, using only Al2O3 containing a single clay brick is 30 ~ 40%, the rotary kiln was improved in the early Yuan faith this experience, use of high alumina brick and clay brick, from 60s onwards, due to large scale kiln and to strengthen the operation of the high temperature parts of kiln lining, alkaline brick masonry is widely used, the main varieties are: magnesia chrome brick, magnesia spinel brick and dolomite brick.
Q:What are the lining structures of lime rotary kilns and what are the requirements for refractories?
The rotary kiln lining structure of rotary kiln and requirements on refractories calcining active lime according to the general output is divided into Nissan 300t, 400 t, 600 t, 800 t, 1000 t, 12000 t of kiln type, calcining zone temperature at 1350 degrees celsius. The kiln is divided into a discharge end, a cooling zone, a burning zone, a preheating zone and a feeding end, and the temperature of each section of the kiln ranges from 1000 DEG C to 1350 DEG C, and the requirements for refractory materials are different. The kiln refractory materials not only to withstand the high temperature impact, but also need to bear the material erosion, kiln rotation stress produced, so not only on the physico-chemical properties of refractory materials have strict requirements, but also for the construction of brick should be strictly.
Q:How are the high alumina bricks fired?
According to the quality requirements of different grades of high alumina brick, choose different grades of bauxite raw materials, it is conducive to rational use, fine materials, fine distribution, as far as possible not to use mixed grade severe raw materials. The quality of the clinker depends on the calcination temperature, calcination temperature, sintering temperature should be generally reached or slightly higher than that of alumina clinker sintering, to ensure the full and possible high volume density, and the two secondary Mullitization and sintering shrinkage effect in calcination process. Lightweight high alumina brick, also known as high aluminum insulation brick (high-aluminium heat insulating brick). A lightweight refractory consisting of mullite and glass phases or corundum in excess of 48%. The volume density is 0.4 ~ 1.35g/cm3. The porosity is 66% ~ 73%, and the compressive strength is 1 ~ 8MPa. Better thermal shock resistance.
Q:What does refractory consist of
Refractory materials can be divided into main raw materials and auxiliary raw materials according to their function in the production process of refractory materials.The main raw material is the main body of refractory. Auxiliary raw materials can be divided into binders and additives. The role of bonding agent is to make the refractory body in the production and use process has enough strength. There are commonly used lignin, phenolic resin, asphalt, cement, water glass, phosphoric acid and phosphate, sulfate, some main raw material itself has the effect of binder, such as clay; additive is to improve the production of refractory materials and construction technology, or strengthen the refractory material of some properties, such as stabilizer, water reducing agent, inhibitor, plasticizer, foaming agent, dispersing agent, bulking agent, antioxidant.
Q:Which thermal shock stability of clay brick and high alumina brick is good?
Generally, the thermal shock resistance of high alumina brick products is worse than that of clay brick products
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 are the grades of high alumina bricks?
High alumina brick according to the aluminum content is generally divided into: super high alumina brick, a high aluminum brick, two high alumina brick, three high alumina brick
Q:How to distinguish the good or bad of the high aluminum brick?
The general high alumina bricks used in the steel, steelmaking, hot blast furnace, electric furnace, blast furnace, reverberatory furnace, rotary kiln lining of industrial furnace in China, mainly composed of a bauxite; sillimanite minerals (including kyanite, andalusite, sillimanite etc.); synthetic material, such as alumina synthesis of mullite, corundum, etc.. High aluminum brick has good quality, high refractoriness, long life and other characteristics, is the main use of refractory brick kiln products, commonly used units can not distinguish the quality and grade of high aluminum brick right in the procurement time, caused by the high prices to buy low grade products, thereby reducing the furnace life therefore, Zhengzhou's Sindh yuan refractory material factory in here is simple to introduce how to identify the quality when purchasing brick high alumina brick.Color: in the purchase of high alumina brick, first of all to see the color, high quality aluminum brick surface smooth, yellow color white, four sides smooth, no broken angle, no cracksWeight: the weight of a block of bricks to be called, according to the standard weight level, high aluminum brick weight of 4.5 kg. Two grade high alumina brick weighs 4.2 kg, three high aluminum brick weighs 3.9 kg, the same level, the same parameters can reach this standard can be regarded as high-quality high aluminum bricks, the opposite is not up to the weight that the quality is good, if there is a crack, four angle uneven, off angle phenomenon, then substandard products, some of the above points to help to the purchaser

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