Silica Refractory Rrick for Coke Oven with Good Quality

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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:

Silica Refractory Rrick for Coke Oven with Good Quality


Product Description

Refractory brick fireclay brick

Refractory fire brick is made of high grade bauxite through high temperature calcinations.

Characteristics

1 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

Typical Application

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 Kiln car building                      

6 For ladle 

Silica Refractory Rrick for Coke Oven with Good Quality

Silica Refractory Rrick for Coke Oven with Good Quality


Item

Mark

KN

KD

KS

SiO2

≥94.5

≥95

Fe2O3

≤1.0

≤1.0

CaO

≤3.0

≤3.0

Al2O3

≤2.0

≤1.5

K2O+Na2O

≤0.35

≤0.35

Refractoriness


≥1710

Apparent porosity

≤24.5

≤22

≤22

Cold crushing strength

≥28

≥35

≥45

Refractoriness under load 02Mpa T06

≥1640

≥1650

Creep (0.2 Mpa)1450 Z5-25 %

Z25 %

≤0.12

≤0.35


Permanent line change 1500℃*2h


-0.2~+0.2

Residual quartz


≤1.5

Expansion rate(1000)


≤1.25

Bulk density


1.8(checker)

1.85(wall)

True density


≤2.34

 

 

Silica Refractory Rrick for Coke Oven with Good Quality

Silica Refractory Rrick for Coke Oven with Good Quality

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 are the main components of high alumina bricks?
Sweat is like water mineral alumina bauxite, aluminum ore, magnesite, waves of gibbsite. Anhydrous alumina raw material, such as corundum, alumina, fused corundum. High alumina brick Zhengzhou gold company specializing in the production of various specifications, you can directly ask their technical staff.
Q:How to test the aluminium bricks of high alumina refractory bricks?
Before making bricks, the raw materials are usually tested and tested to see if the aluminum content is up to standard
Q:Density of high alumina bricks
The density of high alumina bricks is determined according to the price. The average density is between 2.3-2.5g/cm3. The higher the density, the higher the price, the higher the aluminum bricks are in the industry. More than 2.4 are required.
Q:What is the apparent porosity of high alumina brick?
Total porosity is porosity refers to the total volume of sample porosity in the percentage of total volume of samples. Apparent porosity refers to the percentage of the total volume of openings, pores, and total specimens in the sample.
Q:Application characteristics of high alumina brick
Load softening temperature. The softening temperature of high alumina brick products decreases with the increase of silica and alkali metal oxide content, but is higher than that of clay brick products, which is about 1420 - 1530 degrees centigrade. Al2O3. The softening temperature of corundum brick with content greater than 95% can reach above 1600 DEG C.
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:What kind of material is the general metal case?
Ordinary computer chassis and the material itself does not produce high-energy radiation, only in the space environment of the computer is the external defense requirements, and in the space structure, the use of lead as protective materials, unbearable weight.
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:What are the high temperature refractory mortars made of?
Siliceous mud, mineral composition and chemical composition is similar with silica, excellent corrosion resistance, water glass slurry, drying shrinkage, but also can be used for bonding fiber products, sealing furnace wall.
Q:What is the content of free silica in the refractory bricks of high alumina bricks?
In the meantime, the free silica content of silicon brick is as high as 90% above. Therefore, the most serious damage is silicon brick, followed by clay brick, high alumina brick, magnesia brick and so on.

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