• Refractory Bricks Cutting Low Thermal Conductivity System 1
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  • Refractory Bricks Cutting Low Thermal Conductivity System 4
Refractory Bricks Cutting Low Thermal Conductivity

Refractory Bricks Cutting Low Thermal Conductivity

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
10 m.t.
Supply Capability:
200 m.t./month

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Description:

High Alumina Refractory Bricks  AL7 Low Thermal Conductivity


Brief discription for Refractory Bricks Cutting

CMAX refractory bricks cutting are classified according to alumina content ranging from 48% to 90%.

CMAX refractory bricks cutting are commonly used in blast furnace, hot blast furnace, the roof of electric furnace, teeming ladle, rotary kiln,regenerator, etc.


Brief features for Refractory Bricks Cutting

Low thermal conductivity   

◆Excellent acid and base slagging resistance

◆High refractoriness

◆Excellent thermal shock resistance  

◆Excellent mechanical strength

Good spalling resistance and wear resistance.

◆Good corrosion resistance.

◆High-temperature creep rate is quite low.

◆Good volume stability at high temperature.

◆Low bulk density, low thermal conductivity, good thermal insulation performance.


Technical data for refractory bricks cutting 

ITEM

UAL48

UAL55

UAL65

UAL75

UAL80

UAL85

ALP80

Refractoriness,  

1750

1770

1790

1790

1810

1810

1810

Apparent Porosity,%

22

22

23

23

20

20

18

C.C.S, Mpa 

39

44

49

53

55

60

100

Refractories Under   Load (0.2Mpa),℃ 

1420

1470

1500

1520

1500

1520

1550

Reheating Linear   Change,%

1450x2h              0.1-0.4

1500x2h              0.1-0.4

1500x2h              0.1-0.4

1500x2h         0.1-0.4

1550x2h              -0.5+0.5

1550x2h              -0.5+0.5

1550x2h              -0.5+0.5

Al2O3   Content , %

48

55

65

75

80

85

82


Images/photographs for  refractory bricks cutting 


◆ breif images-different shape for different usage

Refractory Bricks Cutting Low Thermal Conductivity

Refractory Bricks Cutting Low Thermal Conductivity




Refractory Bricks Cutting Low Thermal Conductivity

Refractory Bricks Cutting Low Thermal Conductivity

◆ Packaging for refractory bricks 

Refractory Bricks Cutting Low Thermal Conductivity

Refractory Bricks Cutting Low Thermal Conductivity


◆  Producing Equipment for  refractory bricks

Refractory Bricks Cutting Low Thermal Conductivity

 ◆  Testing Mashines for high alumina bricks

Refractory Bricks Cutting Low Thermal Conductivity


FAQ

Q1:Are you a manufacture or trader?

A:Factory+trade(mainly factories,at the same time,we operates other related products).

Q2:Can we visit your factory?

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

Q3:What's the MOQ of trial order?

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

Q4:Is your company accept customization?

A:We have own factory and excellent technical team,and we accept OEM service.

Q5:How about your company's certification?

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

Q6: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.

Q7:Can you offers samples?

A:Of coures,samples are free but freight paid by the buyers.

Q8: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.


If you have any enquiry,please don't hesitate to contact us,we will provide our best products and services for you!!


Q: What refractory material does cupola lining use?
Materials defined as physical and chemical properties that allow them to be used in a high temperature environment are called refractory materials. Refractory materials are widely used in metallurgy, chemical, petroleum, machinery manufacturing, silicate, power and other industrial fields, the largest amount of metallurgical industry, accounting for 50% ~ 60% of the total output.
Q: What's the price of high alumina refractory bricks?
The price of high alumina refractory bricks varies greatly according to the content of AL2O3.
Q: The cloth blowing is not uniform on the lime kiln refractory brick is damaged it
Lining 1 yuan to prevent direct damage to the Sindh kiln high temperature flame or air, to protect the kiln carcass; 2, to prevent harmful substances (CO, SO2) erosion of the kiln body; 3, to prevent corrosion, material flow on the kiln body; 4, reduce the kiln temperature, kiln body to prevent oxidation 5, has the function of corrosion; thermal insulation; 6, to improve the coating performance.
Q: What are the high temperature refractory mortars made of?
Products used in metallurgy, building materials, machinery, chemical, power industry, industrial thermal furnace, for masonryBuilding clay brick, high alumina brick and corundum brick have the characteristics of full grey seam, good airtightness, high bonding strength, high temperature performance and suitable construction time
Q: How to distinguish the good or bad of the high aluminum brick?
Weigh the weight of the next block. According to the weight standard, a high alumina brick is 3.9 kg in weight, two in high alumina brick, three in high aluminium brick and 4.5 kg in 4.2. The same grade, the same type of high alumina brick, if the weight of a single brick to this standard, but for high quality high alumina brick, otherwise, can not reach such a weight, it shows good quality. If there is a crack, a large piece of broken angle, four sides of inequality, it is for substandard products.
Q: The difference between light high alumina brick and heavy aluminum brick
Lightweight high alumina brick, also called high alumina insulation brick. Alumina content of 48% or more, mainly from mullite and glass phase or corundum composition of lightweight refractory. Volume density 0.4 - 1.35g/cm3. Porosity 66% - 73%, compressive strength 1 - 8MPa. Better thermal shock resistance. Usually, a high alumina clinker is added with a small amount of clay. After grinding, it is poured and shaped in the form of slurry by gas generation or foam method, and it is fired at 1300 - 1500 DEG C. Sometimes industrial alumina can be used instead of some bauxite clinker. Used for lining and insulation of masonry kilns, as well as for areas where there is no strong, high temperature molten material erosion and erosion. When contacting the flame directly, the surface contact temperature shall not be higher than 1350 degrees centigrade.
Q: What is the high temperature limit of refractory bricks and refractory soil?
Fire clay -- usually refers to folk point stove furnace set with a kind of soil, limit under atmospheric pressure of 1500 degrees fire clay soil 1, properties and uses: clay brick of weak acid refractory material, its thermal stability is good, suitable for hot blast furnace, boiler and flue, smoke chamber lining, etc..2, product specifications form: standard shape, general, special-shaped and special-shaped brick. Physical and chemical properties of fireclay bricks.
Q: What is the difference between fireclay bricks and high alumina refractory bricks?
High R.U.L, low creep high alumina brick [1] is using high grade bauxite, fused corundum, fused mullite as main raw material of high-grade refractory materials. The product has the advantages of high temperature, little creep, strong corrosion resistance and good thermal shock resistance, and is suitable for large and medium-sized hot blast stoves.
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 should be used as binder for making high alumina bricks?
In addition, high alumina micro powder can be used as binding agent, or high alumina micro powder and clay powder are prepared according to a certain proportion, and synthetic mullite is used as bonding agent. With these binders, high alumina bricks without two expansion can be prepared.

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