Product description
Magnesia refractory brick has high refractoriness, good resistance to alkaline slag, high load softening starting temperature, but poor thermal shock resistance. Sintered magnesia refractory brick is made of magnesia sand as raw material, after grinding, batching, mixing and forming, it is fired at a high temperature of 1550~1600℃, and the firing temperature of high purity products is above 1750℃. Unpoured magnesia refractory brick is made by mixing, forming and drying by adding appropriate chemical binder into magnesia.
Application of magnesia refractory brick :
◆Glass Industry glass furnace regenerator checker
◆Building field
◆lime kiln,cement kiln
◆Refractory field
◆Calcination kiln,shaft kiln and tunnel kiln
◆Non-ferrous metallurgical field
◆Converter furnace and EAF
◆Copper,nickel,lead,zinc,tin smelting furnace lining, refined copper
Physical and chemical index
|
Items |
CH-MZ-91 |
CH-MZ-93 |
CH-MZ-95 |
CH-MZ-97 |
|
Mgo% ≥ |
90 |
93 |
95 |
97 |
|
SiO2%≤ |
-- |
-- |
2.50 |
1.20 |
|
CaO%≤ |
3.0 |
2.50 |
2.0 |
1.50 |
|
Apparent porosity/%≤ |
20 |
18 |
18 |
18 |
|
CCS /MPa ≥ |
40 |
50 |
50 |
50 |
|
0.2 MPaRefractoriness Under Load/℃ |
1500 |
1550 |
1600 |
1650 |
Packages
Physical and chemical index
|
Items |
CH-MZ-91 |
CH-MZ-93 |
CH-MZ-95 |
CH-MZ-97 |
|
Mgo% ≥ |
90 |
93 |
95 |
97 |
|
SiO2%≤ |
-- |
-- |
2.50 |
1.20 |
|
CaO%≤ |
3.0 |
2.50 |
2.0 |
1.50 |
|
Apparent porosity/%≤ |
20 |
18 |
18 |
18 |
|
CCS /MPa ≥ |
40 |
50 |
50 |
50 |
|
0.2 MPaRefractoriness Under Load/℃ |
1500 |
1550 |
1600 |
1650 |
