MAGSCIE BRAND:RH
Andalusite brick takes andalusite as the main raw material. Add powdered materials such as sillimanite powder and mullite powder during production. Then add adhesive in proportion, mix, shape, dry, and then burn at high temperature.Andalusite bricks are a type of refractory product that have been gaining attention since the 1970s for their high performance in various industrial applications. These bricks are primarily made of Al2O3 (Alumina) and possess a range of properties that make them suitable for high-temperature and demanding environments.
· High-Temperature Resistance: Andalusite bricks can withstand temperatures above 1800 °C. Upon heating, they convert into mullite, enhancing their fire resistance.
· Thermal Expansion: Low thermal expansion during the conversion process to mullite.
· Mechanical Strength: These bricks maintain strength under high-temperature conditions and are resistant to rapid cooling and heating.
· Chemical Stability: Chemically stable, resistant to chemical attack, and even insoluble in hydrofluoric acid.
· Thermal Shock Resistance: Strong thermal shock resistance and high load conversion points.
· Low Porosity and Creep Rate: Low porosity and a low rate of creep under high temperatures.
|
MAGSCIE |
Al2O3 |
Fe2O3, |
TiO2 |
A.P |
B.D |
CCS |
PLC |
Creep (0.2MPa, 0~50h) |
RUL |
|
|
1450oCX2h |
1500oCX2h |
|||||||||
|
% |
% |
% |
% |
g/cm3 |
MPa |
% |
% |
% |
oC |
|
|
RH-130 |
49.0 |
1.5 |
0.6 |
20 |
2.40 |
40 |
±0.2 |
|
0.8 1300oC |
1450 |
|
RH-135 |
53.0 |
1.5 |
0.6 |
20 |
2.45 |
40 |
±0.2 |
|
0.8 1350oC |
1520 |
|
RH-140 |
57.0 |
1.2 |
0.6 |
20 |
2.50 |
50 |
±0.2 |
|
0.8 1400oC |
1600 |
|
RH-145 |
61.0 |
1.2 |
0.5 |
20 |
2.55 |
50 |
|
±0.2 |
0.8 1450oC |
1650 |
|
RH-150 |
65.0 |
1.0 |
0.5 |
20 |
2.55 |
55 |
|
±0.2 |
0.8 1500oC |
1700 |
|
RH-155 |
69.0 |
1.0 |
0.5 |
20 |
2.60 |
55 |
|
±0.2 |
0.8 1550oC |
1700 |
Andalusite bricks have a wide range of applications due to their high refractoriness under load, low porosity, and excellent thermal shock resistance. They are used in Bodies of hot stoves, Torpedo cars, Ladles, Glass furnaces, Roofs of electric furnaces, Heating furnaces, etc. The use of andalusite bricks in the hot blast stove can extend the service life of the stove and lining. At the same time, it can also solve the problem of instability of other refractory bricks in high-temperature environments of hot blast stoves.
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