High Alumina refractory Brick with Good Price

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Tianjin
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3000 pc
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50000 pc/month

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Product Description:

High Alumina refractory Brick with Good Price


Specification:
Refractory fire bricks refers to fire brick containing Al2O3 more than 48%, which is made of high grade bauxite through high temperature calcinations. High alumina brick is a kind of neutral refractory material so that it enjoys excellent resistance to acid and alkali corrosion. It has characteristic of high refractoriness  under load, which decide high alumina brick is a n ideal material for various kinds of industrial furnace. It is widely used in building lining of hot-blast stove, blast furnace, coke oven, rotary kilns of cement and so on.


High Alumina refractory Brick with Good Price



Item:High alumuna refractory bricks
STANDARDS OF TYPE
Brick:


230mmx114mmx65mm

230mmx114mmx75mm

Product Range: SK32,SK34,SK35,SK36,SK37,SK38

Refractories≥1750
Applications for all
High alumina brick:
Modern large, medium-sized blast furnace, requires 10 years (or 15 years) service life for a furnace generation, which translates into strict requirements on types and quality of refractories. Refractory varies from locations inside blast furnace due to huge temperature fluctuations and different reaction conditions in different locations with thermal shock to suffer, Different parts of the blast furnace: high alumina, modified high alumina bricks for furnace stack, bosh, belly, bottom, hearth, cooling wall are shown below
1 Building materials for blast furnace
2 Building materials for hot-blast stove
3 Building materials for coke oven
4 Building materials for steel making furnace
5 For ladle 

Advantages1 Excellent thermal stability
2 High refractoriness under load
3 Chemical stability and anti-corrision
4 Small high temperature creep rate
5 Excellent thermal shock resistance

 

High Alumina refractory Brick with Good Price

High Alumina refractory Brick with Good Price

Features:

1. Low thermal conductivity, good thermal insulation performance.

2. Long service life, easy operation, could be shaped freely

3. Product specification: standard form, normal standard, shaped and special shaped bricks.

4. 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.



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 Alumina refractory Brick with Good Price




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:Is glass wool inorganic thermal insulation material?
Yes, glass wool belongs to one kind of glass fiber. It is a kind of man-made inorganic fiber. Therefore, in the field of thermal insulation materials classified as inorganic insulation materials.
Q:What materials are used for roof insulation?
There are two kinds: one is a kind of cotton insulation board, such as rock wool board, aluminum silicate cotton board, but this is not environmental protection, harmful to life, foam board (this fire safety factor minimum), these relatively cheap.
Q:Aluminum content 38. silicon content 55 What refractory bricks?
High alumina brick:The mineral composition of the high alumina brick is determined by the bauxite used. The mineral composition of the clinker is usually mullite, corundum and glass. The theoretical composition of mullite is Al2O371.8%, SiO2 28.2%, and its melting decomposition temperature is 1840 DEG C. With acicular crystal, network cross structure, high temperature state showed better strength. Corundum in the form of alpha -Al2O3, melting point of 2050 degrees, hardness of Mohs 9, showing a granular and columnar crystal, has good chemical stability, acid, alkaline slag have a certain resistance. Based on the composition of mullite minerals, the phase composition of high alumina brick can be judged according to the content of Al2O3. When the bricks are below Al2O3 71.8%, the base of the composition is mullite and SiO2, such as grade LZ-48 bricks. Because it contains a large number of SiO2 formed in the liquid phase under high temperature is 20% ~ 30%; brick in Al2O3 more than 71.8%, the excess Al2O3 formed corundum crystal under high temperature, while generating 2 high temperature phase, eutectic temperature rise by the low content of Al2O3 brick 1595 C to 1840 C, such as grade LZ-75 brick. In fact, it is impossible to produce a complete phase equilibrium in the process of production, but the glass phase is very small, and there is no more than 10% in the partial gap of the Yu Jing phase
Q:What is the price of the first grade high alumina brick?
The specifications and different prices, relatively large fluctuations of the main push of the refractory Dongxin high alumina brick high alumina brick prices generally around 3000 have various levels of Dongxin refractories
Q:In 2016, a few of the traditional refractory materials will be able to survive
The other is in large enterprises and individual has the unique advantage of the small enterprises, with independent technology system, production equipment advanced, there are certain funds set up to deal with risk, timely reform, such enterprises compared to a few years ago the productivity and sales or have declined, but overall is still in the stage of production increased steadily.
Q:What does refractory consist of
According to the chemical characteristics of refractory raw materials can be divided into acidic refractory materials, such as silica, zircon etc.; neutral refractory raw material, such as corundum, bauxite, mullite (acidic) (acidic), Ge (alkaline) iron and graphite; alkaline refractory materials, such as magnesite, dolomite, magnesium sand calcium sand.
Q:How much is one ton / ton of high alumina refractory brick?
The market price of about super high aluminium brick price at 3000 yuan / ton, a high aluminum brick at around 2500 yuan / ton, two high aluminum bricks at around 2100 yuan / ton three grade high alumina bricks at around 1850 yuan / ton for reference, choose to buy the area is not the same as the prices are not the same.
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:What is the difference between metal compounds and metal solid solutions?
Sigma phase belongs to Affirmative system, there are 30 atoms in the unit cell, two element alloy, sigma phase formation is related with the following conditions: (1) the atomic size difference, phase difference between the maximum sigma atomic radius of a tungsten cobalt, the atomic radius difference is 12%. (2) there is a set of cubic lattice elements (coordination number 8), and another component is face centered cubic or dense six square lattice (coordination number is 12). (3) appear in "average number of races" (s+d layer electron number) in the range of 5.7 ~ 7.5. The region of the presence of sigma in the two - element alloy is shown in table 3. In the three element system, the concentration and temperature range of the formation of the sigma phase are affected by the addition of third components. Usually in chromium stainless steel in Fe Cr phase, in Fe - Cr - Mn three yuan, sigma phase iron chromium and chromium can form Mn two element, when the addition of manganese in stainless steel, will promote the formation of sigma phase, and stabilizes the wide temperature range. Many of the Fe Cr alloy elements. The phase temperature range increases. In less than 820C stable Fe Cr phase, silicon promotes the formation of D phase and the stable temperature increased to 900 to 960 DEG C, manganese and molybdenum can improve the temperature stability of sigma phase to 1000 DEG C.
Q:What are the categories of bricks?
Clay brick materials, cheap, durable, and fire prevention, heat insulation, sound insulation, moisture absorption and other advantages, is widely used in civil engineering. Waste brick can also be used as aggregate of concrete. In order to improve the shortcomings of ordinary clay bricks, such as small, self important and waste of soil, they are developing in the direction of light weight, high strength, hollow and big blocks.

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