High Alumina Brick - Fire Clay Brick System 1

High Alumina Brick - Fire Clay Brick

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 3000 pc

Supply Capability:: 50000 pc/month

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High Alumina Refractory Brick and Fire Clay Brick

1.Description:

Refractory ladle lining brick

Good thermal shock resistance
High-temperature endurable
Good thermal insulation

$High Alumina Refractory Brick and Fire Clay Brick$

Index Products		Spalling Resistant High Alumina Bricks
Al2O3	%	≥70
Fe2o3	%	/
Bulk Density	g/cm3	≥2.5
Apparent Porosity	%	≥23
Refractoriness under Load(0.2MPa)	℃	≥1470
Cold Crushing Strength	Mpa	≥70
Thermal Shock(1100℃,water cooling)	times	≥25

$High Alumina Refractory Brick and Fire Clay Brick$

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.

$High Alumina Refractory Brick and Fire Clay Brick$

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.

Our services:

1.Adhering to the business philosophy "Mutual Trust, Mutual Benefit, Mutual Profit, Faith Oriented".

2.According to your requirements to produce your order and OEM/ODM service is available.

3.Products are inspected through SGS and BV etc and accord with the international standard.

4.Your inquiry related to our products or prices will be replied in a timely manner.

Q:Application characteristics of high alumina brick: Thermal shock stability. In high alumina brick products, the stress concentration is due to differential expansion when the temperature of refractory brick changes. Therefore, the high aluminum brick products than clay brick products thermal shock stability is poor, general water temperature only 3 - 5 times.

Q:What are the high aluminum bricks made of?: It's OK to use corundum bricks and alumina hollow ball bricks to build a furnace,

Q:The difference between light high alumina brick and heavy aluminum brick: High aluminum brick is one of the ideal heat insulating material, with high strength, low thermal conductivity, good insulation performance, low price and other characteristics, has been widely used in ceramic tunnel kiln, roller kiln, shuttle kiln, kiln wall, it is also used in various heating furnace coking furnace of iron and steel industry and other thermal equipment heat treatment, lining material, and has broad market prospects.

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 are ordinary bricks, refractory bricks, hollow bricks?: Hollow brick is divided into cement hollow brick, clay hollow brick, shale hollow brick. In March 2011 Yunnan Yingjiang earthquake occurred in 5.8, the use of cement hollow brick houses collapsed and killed several people, due to safety concerns that Yunnan intends to disable the cement brick, Shandong Qingdao in the construction of real estate has also been halted the use of cement hollow brick. Professional claims in the construction industry argue that the prohibition of the use of such statements is unscientific and unprofessional. Misleading the public, it must be corrected. Hollow brick is only a kind of building material, and it is no problem to use it in scientific way. Hollow brick in use is very scientific, high quality requirements, the investigation of the foundation is suitable for the use of hollow bricks, how to design, construction, cement and other related ingredients, there are no problems. According to strict procedures, scientific use, strict implementation of relevant national standards, the use of qualified hollow bricks, there is no problem. Similarly, if the use of solid bricks does not strictly comply with the relevant standards of the state, the same will be a problem.

Q:What are the reasons for the spalling of refractory bricks in the production of lime kiln?: Therefore, the choice and masonry of refractory bricks are of vital importance. If there is a brick kiln kiln off block process of reproduction, is now because of the use of refractory brick kiln material mostly three grade high alumina bricks. The content of AL2O3 is about 55%, of which the content of Fe2O3 is about 2%, which is weak, and the alkali corrosion resistance is a little worse. In a containing three grade high alumina bricks in the composition of AL2O3, Si2O3, and other elements also contain K, Na trace, were the most, thus causing the system of the low melting point is very low, even at 1400 DEG C has been liquid phase, and generate CaAL12O19 limestone and calcium feldspar etc.. Form corrosion loss. Therefore, a long time will cause the loss of block. On the one hand, it may be caused by construction.

Q:How can the refractory brick blast furnace be pulverized and pulverized enough not to be taken away by the wind?: Top burning type hot blast stoveIt means that the burner is installed on the top of the hot blast furnace of the iron making equipment, and it does not need a special combustion chamber in the vault space. It is also called a non combustion chamber type hot blast stove.

Q:What are the requirements for Rubble backfill height?: 1, filling thickness is not greater than 50cm.2, filling, the use of layered filling.

Q:What's the difference between high alumina refractory bricks and high alumina refractory bricks?: The chemical pH value of high alumina refractory brick belongs to neutral and alkaline refractory brick, and clay refractory brick belongs to neutral and acid refractory brick.

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

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