High Temperature Refractory Brick For Steel And Non-ferrous Metals Metallurgy

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3000 pc
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50000 pc/month

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Product Description:

High Temperature Refractory Brick For Steel And Non-ferrous Metals Metallurgy


Feature For  Refractory Brick:   

1. Low bulk density, low thermal conductivity, good thermal insulation performance.
2. Refractory category allow direct contact of fire, suitable ofr various atmosphere
3. Good integrity with furnace lining, long service life, easy operation, could be shaped freely
4. Product specification: standard form, normal standard, shaped and special shaped bricks.
5. Can be used in various kilns because of its cheapness and general tray package. Among all of the refractory materials, it is the most widely used.


High Temperature Refractory Brick For Steel And Non-ferrous Metals Metallurgy

Items

Index

SK-38

SK-37

SK-36

SK-35

 SK-34

Al2O3  %,

75

65

55

48

 42

Cold Crushing Strength,  MPa  ≥

54

49

44

40

 20

Apparent Porosity,  %   ≤

23

23

22

22

 26

Refractoriness Under Load, °C ≥

1520

1500

1470

1420

 1300

Linear Change on Reheating[1500°C×2h]%

+0.1-0.4

+0.1-0.4

+0.1-0.4

+0.1-

0.4

 0-0.5

Refractoriness, °C ≥

1790

1790

1770

1750


 17

 

High Temperature Refractory Brick For Steel And Non-ferrous Metals Metallurgy

High Temperature Refractory Brick For Steel And Non-ferrous Metals Metallurgy

Feature:

 

1.High compression strength.

2.Top high-temperature capability.

3.Excellent thermal stability.

4.Low thermal conductivity.

5.Powerful penetrating-proof capability.

6.Good erosion-resistance.

7.Long service life.


Application:

 

Refracory brick plant can be in direct contact with the flame,this insulating brick can be used as linings or as thermal preservation layers in various industrial furnaces and kilns in metallurgical industry, ceramic industry, chemical industry, machinery industry.

 

such as blast furnace, hot blast stoves ,electric arc furnace, cement kiln,melting furnace, ignition furnace, flue, refining equipment, heating equipment and piping, regeneration device, gas furnace, soaking furnace, annealing furnace, heat reaction chamber and other thermal industrial equipment.

High Temperature Refractory Brick For Steel And Non-ferrous Metals Metallurgy




FAQ



1. Do you provide samples?


   Yes, samples are free. Guarantee samples quality same as mass production quality.


2. What's the MOQ of trial order?

 

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

 

3. Can we visit your company?

 

  Of course,welcome at any time,seeing is believing.

 

4. Do you accept OEM?

 

   Yes, we can do OEM.

 

5. What are the payment terms?

 

   Usually T/T, D/A, D/P, L/C, Western Union ,others could be discussed .

 

6. How long is delivery time?

The delivery time will be determined according to the quantity of the order.

 

7. How are your products’ quality?

 

More than 20 years of production experience. The products will be strictly inspected before shipment, so the quality could be guaranteed.


8. How to slove the quality problems?

 

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

 

9. What is the service life of your bricks?

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

 

10. How about your company's certification?

 

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

 

11.  How about your price?


Quality will be guaranteed. Competitive prices based on same quality.



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Q:How much is one ton of high alumina refractory brick?
Three high aluminum refractory brick Zhengzhou Kuwait is generally around 800. 32 years of experience, good.
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:What causes breakage of refractory bricks?
Refractory brick is a non metal mineral products can be used in the high temperature of 1550 DEG C under belongs to a class of inorganic, used in high-temperature furnace lining materials as protection kiln, which causes damage, usually have these points.Furnace temperature is not clear, there is no corresponding choice of refractory bricks.Physical impact, abrasion and erosion cause damageChemical factors, especially chemical industry, should be made of refractory bricks, which should be resistant to penetration and erosionIV: products from the factory when the factory did not pass the quality inspection standards
Q:What are the main components of high alumina bricks?
High alumina brick materials according to the main mineral phase can be divided into: aluminum silicate minerals, such as sillimanite, kyanite, andalusite, and synthetic mullite.
Q:What are the common thermal insulation materials for thermal conductivity?
The single organic insulation material should be the best polyurethane in the field. In accordance with the production process can be divided into on-site foam polyurethane and factory prefabricated rigid foam polyurethane board. The scene is polyurethane foam isocyanate and polyol to cool (polyether or polyester) two components as the main raw materials with additives, the on-site spraying construction with thermal insulation and waterproof function of the rigid foam material.
Q:How are the high alumina bricks fired?
Light and high alumina bricks are usually fired in a weak oxidizing atmosphere. In light and high alumina bricks firing, they are often rich in impurities such as R2O, RO, Fe2O3 and so on. They react with Al2O3 and SiO2 at high temperature to produce liquid phase. In the Al2O3 - SiO2 - R2O system, the growth rate of liquid phase increases with the increase of temperature at high temperature. So, because the increase of sintering temperature brings a lot of liquid phase, the decrease of liquid viscosity will lead to the deformation of brick and the decline of brick high temperature function. Therefore, the lower sintering temperature and longer holding time should be adopted in the sintering process dominated by liquid phase sintering. The production practice shows that the same firing temperature can be used for the high grade aluminum bricks. When fired in an inverted flame kiln, it is usually 1430 degrees centigrade and insulated by 40H. The high alumina bricks such as Ill are 1390~1420 degrees centigrade. When the tunnel kiln is fired, they are 1550 and 1450~1500 degrees centigrade respectively. High alumina brick is usually made of weak oxidizing atmosphere.
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:How much is one ton / ton of high alumina refractory brick?
The price of high alumina refractory bricks is not equal, according to the quality index of GB2988-2012
Q:How are the grades of high alumina bricks differentiated?
If the content of Al2O3 is higher than 90%, it is called corundum brick. Because of the different resources, the standards of different countries are not exactly the sameFor example, European countries limit the content of Al2O3 for high alumina refractory materials at 42%.
Q:Difference between low creep high alumina brick and ordinary high alumina brick
The question is good, these two belong to the high aluminum brick products, when many manufacturers buy, I do not know how to distinguish.

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