1.Light weight, low thermal conductivity
2.Stable structural strength
3.Low heat storage
4.High thermal shock resistance
Features:
1.Light weight and low thermal conductivity allows thinner furnace walls
2.Maintain stable structural strength throughout ambient to maximum service temperature
3.Low heat storage results in rapid cooling and heating operation
4.High thermal shock resistance in preventing spalling
5.Low iron and impurities to enhance reducing atmosphere
Application:
1.Ceramic frit furnace, glass melting furnace
2.Sodium silicate furnace,
3.Metal heat treatment furnaces
4.Laboratory furnaces
Physical and chemical index:
Item | Properties | |||
NG-1.3 | NG-1.0 | NG-0.8 | NG-0.6 | |
Bulk density,g/cm3 | 1.3 | 1.0 | 0.8 | 0.6 |
Cold Crushing strength MPa, | 4 | 3 | 2.5 | 1.5 |
Refiring line changes 2% of testing temperature, °C | 1350 | 1350 | 1250 | 1200 |
W/(m·k)350±25°C), Coefficient of thermal conductivity W/(m·k)average temperature 350±25°C) | 0.6 | 0.5 | 0.35 | 0.25 |
A12O3 ≤% | 38 | 38 | 38 | 38 |
Fe2O3 ≤% | 2.0 | 2.0 | 2.0 | 2.0 |
Use highest temperature°C | 1180 | 1180 | 1100 | 1100 |
Application | All industrial furnace | |||
