Medium frequency furnace lining maximum working temperature table
|
Furnace lining material |
Mineral composition ( % ) |
Melting point (°C) |
Maximum working temperature (°C) |
Remarks |
|
CaO |
CaO ≥ 96 |
2570 |
1850 |
Alkaline |
|
MgO |
MgO ≥ 98 |
2300 |
1800 |
Alkaline |
|
Sintered MgO |
MgO ≥ 96 |
2000 |
1750 |
Alkaline |
|
MgO and Al 2 O 3 |
MgO 28.3 Al 2 O 3 71.7 |
2135 |
1750 |
neutral |
|
SiO 2 and Al 2 O 3 |
Al 2 O 3 71.8 SiO 2 28.2 |
1870 |
1600 |
neutral |
|
ZrO2 · SiO 2 |
ZrO2 · SiO 2 ≥ 95 |
2693 |
1650 |
neutral |
|
SiO 2 |
SiO 2 ≥ 96 |
1700 |
1550 |
Acidic |
