High Alumina MgO Magnesia Fire Refractory Brick for Cement Kiln
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3000 pc
- Supply Capability:
- 50000 pc/month
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Mgo Magnesia Fire Refractory Brick For Cement kiln
Magnesia Brick Features:
1. High refractoriness, multiply mineral composition;
2. Good thermal conductivity, strong slag erosion resistance.
product Index | unit | magnesia brick | magnesia-alumina brick | magnesia zircon brick | magnesite-chrome brick | |||||||
MZ-92 | MZ-95 | MZ-97 | MZ-80A | MZ-80B | MG-1 | MG-2 | MGZ-12 | MGZ-9 | MGZ-6 | MGZ-4 | ||
MgO ≥ | % | 92 | 95 | 97 | 80 | 80 | 73 | 77 | 60 | 70 | 75 | 80 |
CaO ≤ | % | 2.5 | 2.0 | 2.0 | — | — | — | — | — | — | — | — |
Al2O3 ≥ | % | — | — | — | 5-10 | 5-10 | — | — | — | — | — | — |
SiO2 ≤ | % | 4.0 | 2.0 | 1.0 | — | — | — | — | 3.2 | 3.0 | 2.8 | 2.5 |
ZrO2 ≥ | % | — | — | — | — | — | 12 | 12 | — | — | — | — |
Cr2O3 ≥ | % | — | — | — | — | — | — | — | 12 | 9 | 6 | 4 |
Apparent porosity≤ | % | 18 | 18 | 18 | 18 | 20 | 18 | 16 | 19 | 19 | 18 | 18 |
Cold crushing strength MPa≥ | Mpa | 60 | 60 | 60 | 40 | 30 | 65 | 70 | 35 | 40 | 40 | 40 |
0.2MpaRefractoriness under loads≥ | ℃ | 1600 | 1600 | 1700 | 1600 | 1580 | 1600 | 1660 | 1580 | 1600 | 1600 | 1600 |
linear changes on reheating 1650℃x2h | % | +0 -0.5 | +0 -0.3 | +0 -0.2 | — | — | — | — | — | — | — | — |
Bulk density ≥ | g/cm3 | 2.88 | 2.9 | 3.0 | 2.8 | 2.8 | 3.0 | 3.1 | 3.0 | 2.98 | 2.95 | 2.93 |
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.
- Q: How much is the bending temperature aluminum silicon carbide brick for torpedo car
- 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: How much is one ton of high alumina refractory brick?
- High alumina refractory brick according to the different content of AL2O3 is divided into grade, grade one and grade two, and grade three high aluminum brick, Zhengzhou Kang Hui refractories factory price in 800-1900 yuan / ton, stable quality, are exported to the domestic and foreign markets.
- Q: What are the requirements for Rubble backfill height?
- Backfill should be filled with large stones, big face, small face upward, the decoration is stable, and then use small stones leveling, the gap between the stones can be swept into the slag, gravel, so that the gap filled.
- Q: What is the standard classification of high alumina bricks and high alumina bricks?
- High alumina brick is a kind of refractory material in refractory brick products. It is made of refractory clay or other refractory material. It belongs to the product of Si Al System
- Q: What are the reasons for the decline in the performance of high alumina bricks when we use high alumina refractory bricks?
- Quality requirements for aluminium bricks of different grade. 2, high aluminum powder and high alumina aggregate and other materials of reasonable proportion, to reach the production requirements.
- Q: What are the requirements for refractory materials in heat treatment furnace?
- Refractoriness is the property of a refractory against high temperature, which means the temperature at which a refractory is softened to some extent after heating, but not its melting point. According to the degree of refractory, refractory materials can be divided into: General refractories, refractory degree is 1580 to 1770 DEG C; advanced refractories, refractory degree is 1770 to 2000 DEG C; special refractory material, refractory degree is greater than 2000 DEG C.
- 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
- 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: How high can aluminum bricks expand at 80O degrees of heat?
- When an object is heated, the particle moves faster and thus occupies additional space. This phenomenon is called dilation.
- 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.
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High Alumina MgO Magnesia Fire Refractory Brick for Cement Kiln
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3000 pc
- Supply Capability:
- 50000 pc/month
OKorder Service Pledge
OKorder Financial Service
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