• Magnesite Alumina Spinel Brick (Magnesia-MA Spinel Brick) System 1
Magnesite Alumina Spinel Brick (Magnesia-MA Spinel Brick)

Magnesite Alumina Spinel Brick (Magnesia-MA Spinel Brick)

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CMAX Magnesia-MA Spinel Bricks are made by using high quality raw materials, optimized size grading, enforced homogenization, high pressure forming and firing with clean fuel.

Refractory bricks

Index                 Product

AZS-41

AZS-36

AZS-33

ZrO2(%)≥

40

35

32

SiO2 (%)≤

12.5

14

14

Na2O≤

1.2

1.8

1.4

Fe2O3

0.15

0.15

0.15

TiO2

0.10

0.10

0.10

B.D. (g/cm3) ≥

4.12

3.98

3.84

C.C.S (Mpa) ≥

350

350

350

Linear Thermal Expansion (%)

At 1000°C

0.80

0.80

0.80

At 1500°C

0.80

0.80

0.80

Thermal Conductivity

At 600°C

3.3

3.4

3.2

At 1500°C

3.5

3.6

3.5

Electrical Resistance

At 1000°C

400

200

240

At 1500°C

90

55

65

Glass Phase Exudation(%)1500°C*16hr

≤2

≤3

≤3



Q: What are the uses of magnesia spinel brick in the industry?
Used to make ladle casting material, greatly improve the corrosion resistance of steel lining. It is widely used in steel making refractory. The preparation of high-quality pre synthesized spinel provides a new raw material for the production of unshaped and unshaped high purity refractories
Q: What is the primary crystal phase? What is the secondary phase?
There are structure of refractory refractory material in the crystal phase, especially the direct combination of high melting point and so on, the resistance to high temperature also tend to benefit. Compared with the ordinary brick, the second phase of the refractory products, make the products refractoriness under load are improved. Many according to mineral composition of refractory material named, such as mullite corundum brick, corundum mullite brick, is its main crystal phase and the second phase composite named. The former is mainly crystal phase, the latter is sub crystalline phase.
Q: Is magnesium spinel harmful to the body? Such as title magnesium spinel, harmful to the body?
Hospital tests revealed that Alzheimer's patients had more than 5~30 times more aluminum in brain tissue than normal subjects. When the aluminum content in the human body exceeds 5~10 times that of normal people, it can inhibit the absorption of phosphorus by the digestive tract, reduce the level of serum inorganic phosphorus, cause osteomalacia and joint pain. Aluminum chloride and aluminum hydroxide, aluminum alkyl and salt and other drugs, the short term can produce toxic side effects.
Q: What's the difference between iron spinel and magnesium aluminum spinel?
Spinel is a mineral of magnesium aluminum oxide, because it contains elements such as magnesium, iron, zinc, manganese and so on
Q: Spinel compound brick composite layer pollution layer does not affect the use of theoretical basis for it
The study of mg Al spinel synthesized with MgO raw materials and Al2O3 raw materials (calcined alumina or alumina) has begun as early as 1930s. Magnesia alumina spinel was synthesized from industrial alumina and activated alumina in 1939 and used for making bricks. In 40s, people found that the addition of alumina powder in magnesia could improve its thermal stability, this is actually a spinel bonded brick. When the magnesia brick is mainly used in cement kiln, but in addition to the production of white cement kiln, it was replaced by magnesia chrome refractories.
Q: What are the characteristics of Mg rich spinel and aluminium rich spinel?
Occurs in the contact metamorphic zone of acid intrusive rocks and dolomite and dolomitic limestone, and is associated with forsterite, diopside and so on. It is also found in peridotite, Kimberley rock, magnesian porphyry and some crystalline schist.
Q: What is the high-grade magnesia spinel brick?
Then there was the second generation of magnesia spinel brick, and its features are changed
Q: The difference between aluminium refractory and magnesia refractory
The difference between the two is one is neutral, one is alkaline, the original product is different naturally.
Q: What is the significance of the synthesis of mg Al spinel? What are the main approaches?
The spinel has high hardness, chemical stability, high melting point and good properties, high temperature resistance in various melt erosion is very strong, so the orebody in spinel, improve the high-temperature performance of the product. Although the spinel has the above properties, the natural magnesium aluminum spinel is very few and can not meet the needs. Therefore, the synthetic method is usually used in modern times.
Q: Characteristics of sintered spinel used in refractory zzjsnc
For the production of castable for ladle lining steel plate greatly improve the anti erosion ability. It is widely used in steelmaking refractories provides new raw material for the production of high quality synthetic stone pre sintered spinel prepared amorphous and amorphous high purity refractory material

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