High Aluminum Clay Refractory Bricks for Electric Heating Wires Furnace

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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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Product Description:

High Aluminum Clay Refractory Bricks for Electric Heating Wires Furnace


Specifications

1.long service time. 
2.competitive price. 
3.best service 
4.one piece can be order


High Aluminum Clay Refractory Bricks for Electric Heating Wires Furnace

High Aluminum Clay Refractory Bricks for Electric Heating Wires Furnace


ItemBrand/Index

Apparent  porosity (%)

Bulk density(g/cm3)

Cold crushing  strength(Mpa)

Refractoriness under load(T2,°C)

Thermal shock resistance(1100°C,Water  Cold)

SiC(%)

Standard value

≤20

≥2.5

≥80

≥1600

Best

≥85

Typical value

18

2.55

90

1650

Best

88

 

 



High Aluminum Clay Refractory Bricks for Electric Heating Wires Furnace

High Aluminum Clay Refractory Bricks for Electric Heating Wires Furnace

Production & Quality

1.Production Process

Crushing→Mixing→Shaping→Drying→Firing→Inspection→Packing shipment


2.Quality Control

a.According to the chemical content,raw materials are classified into different levels to ensure quality of brick first.

b.During the production,every brick will be weighed twice strictly to reduce the error of weight .

c.Before delivery, the inspectors will inspect the size,appearance,physical and chemical properties of brick again in factory.




F&A

Q1.Are you a manufacture or trader?

A:To be honest we are a trader,but we have stable cooperation factories.And we can supply good pre-sale service, after-sales service.

Q2.Can we visit your company?

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

Q3. Do you provide samples?

Yes, samples are available.

Q4. Do you accept OEM?

Yes, we can do OEM.

Q5.What's the MOQ of trial order?

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

Q6.What are the payment terms?

Usually T/T,but L/C,Western Union etc are available for us.

Q7. How long is delivery time?

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

Q8.How are your products’ quality?

The products will be strictly inspected before shipment, so the quality could be guaranteed.

Q9.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.

Q10.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.

Q11.How about your company's certification?

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





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Q:What should be used as binder for making high alumina bricks?
Bond for making high alumina brick: soft clay has good plasticity, so the high alumina brick is usually made of soft clay as bond. However, the free Al2O3 free SiO2 and bauxite clinker clay in under 1200 degrees occurred two times of Mullization reaction, generate large volume expansion, silicon porosity, strength reduction. Therefore, the amount of clay powder in the ingredient should be no more than 5%.
Q:How to reduce porosity of high alumina brick
In order to reduce the porosity of high alumina brick, the corresponding measures should be taken from the selection of raw materials, batching, mixing, molding and firing.
Q:What are the requirements for refractory materials in heat treatment furnace?
The structural strength of high temperature is evaluated by loading softening point. Load softening point is that under certain pressure (2 kg/ cm 2 = 0.2MPa) under the condition of heating rate to heating, measured the sample deformation (deformation for the original sample 0.6%) temperature. This temperature is called the softening point of the refractory. Sample size is Phi 36 x 50mm.
Q:What are ordinary bricks, refractory bricks, hollow bricks?
Referred to as refractory brick. Refractory wood made from refractory clay or other refractory material
Q:Are there any differences between insulating bricks and refractory bricks?
Heat preservation brick is to emphasize its heat preservation performance generally, not paying much attention to its refractoriness, but refractory brick is exactly the opposite. Different locations will use different materials, I hope we can choose carefully.
Q:Which thermal shock stability of clay brick and high alumina brick is good?
High alumina brick is made of superfine alumina, fused corundum and fused mullite as main refractory materials.
Q:How are the grades of high alumina bricks differentiated?
In China, the content of Al2O3 in high alumina brick is usually divided into three categories: I, etc. - Al2O3 content > 75%; II, etc. - Al2O3 content is 60 to 75%; III and so on - Al2O3 content is 48 ~ 60%.
Q:Aluminum content 38. silicon content 55 What refractory bricks?
Hello Only on behalf of the Zhengzhou colt as refractory product index your answer to this question is not entirely separate from the chemical index of aluminum content, silicon content and judgment, personally think that three types of refractory bricks may respectively is: Two: semisilica brick high alumina brick
Q:Corundum, high alumina and fireclay refractory difference is what
They differ in that the alumina content is different, and the content is in order: corundum > high alumina > clay.
Q:What are the categories of bricks?
Ordinary brick size of 240 mm * 115 mm * 53 mm, according to compressive strength (Newton / square millimeter, N / mm2) size is divided into MU30, MU25, MU20, MU15, MU10, MU7.5, these intensity levels.

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