ROPE LAGGING Ceramic fiber core with external braiding of ceramic yarn reinforced with NiCr; open core braiding; (stitch open or closed)
APPLICATION
UTILISATION TEMPERATURE
Flexible seals for broilers, ingot moulds etc. Thermal shields
800°C
PACKAGING ROLL IN LM
15
25
20
25
25
25
30
25
35
25
40
10
50
10
The ceramic fibers are composed of :
- ceramic fibres (between 2 and 4 microns) with a maximum length of 50 mm
- support fibers composed of viscose or polyester and a frame either of glass (silionne) or nickel chrome
Principal characteristics :
- High temperature resistance (static use)
Excellent potential for thermal and electrical isolation (glass frame)
- Very good resistance to chemical agents
(except fluorohydric acid, phosphoric and concentrated bases)
- Total absence of chlorine
- Good resistance to molten aluminum and zinc.
Chemical composition :
Al2O3
45 - 50 %
SiO2
48 - 53 %
Fe2O3
0,7 - 1,2 %
Na2O
Trace
MgO
CaO
Physical characteristics :
Colour : white - Melting point : 1760°C - Specific weight : 2,5 - 2,7 g/cm³
Shrinkage : 0 % at 900°C - 1,25 % at 1000°C - 3,7 % at 1200°C
Ignition loss : approximately 15 % - Thermal conductivity at 540°C : 0,13 W/m.K