Ceramic Fiber Plugging Cones
1.Ceramic fiber vacuum formed plugging cones are made of high quality ceramic fiber by using the technique of vacuum forming.
2.It has features of non-stick aluminum and non-slagging,plastid evenly distributed with good elasticity, tight blockage and stable flow control.
2.It has features of non-stick aluminum and non-slagging,plastid evenly distributed with good elasticity, tight blockage and stable flow control.
|
Description |
Standard |
High Alumina |
Zirconium |
|
|
Classification Temperature(℃) |
1260 |
1350 |
1430 |
|
|
Working temperature (°C) |
1050 |
1200 |
1350 |
|
|
Density (kg/m3) |
280-400 |
280-400 |
||
|
Flexural strength (Mpa) |
≥0.6 |
≥0.6 |
≥0.6 |
|
|
320kg/m3 Linear Shrinkage rate(%) |
≤1.5 (1100°C×24) |
≤2.0 (1200°C×24) |
||
|
Al2O3 (%) |
≥46 |
≥52 |
≥39 |
|
|
SiO2 (%) |
≥54 |
≥47 |
≥44 |
|
|
Al2O3+SiO2 (%) |
97 |
99 |
- |
|
|
ZrO2(%) |
- |
- |
≥15 |
|
|
Thermal Conductivity (W/m·K) |
400℃ |
0.08 |
0.08 |
- |
|
600℃ |
0.15 |
0.15 |
0.14 |
|
|
800℃ |
0.20 |
0.19 |
0.18 |
|
|
1000℃ |
- |
- |
0.21 |
|
Features:
1.Good thermal shock resistance.
2.Low thermal mass.
3.Non-wetting.
4.Low smoking.
5.Good insulating properties.
6.High strength.
Application:
To pour the molten aluminium from melting or holding furnaces for aluminium casting, some units use tap hole block, which is sealed with tap out cone.
