Insulating Castable
1.Binder- high purity calcium aluminate cement or aluminium dihydrogen phosphate
2.Refractory aggregate and power
a.fire clay (chamotte) based
b.high alumina based
c.mullite based
|
0.8±0.1 |
1.0±0.1 |
1.3±0.1 |
1.5±0.1 |
1.8±0.1 |
2.0±0.1 |
|||
|
Reheating linear change % |
1000°C,3h |
-1.0～0 |
-1.0～0 |
-1.0～0 |
-0.5～0 |
-0.5～0 |
-0.5～0 |
-0.5～0 |
|
Compressive strength MPa |
110°C,24h |
≥1 |
≥2 |
≥3 |
≥6 |
≥7 |
≥12 |
≥15 |
|
1000°C,3h |
≥1 |
≥2 |
≥3 |
≥7 |
≥12 |
≥25 |
≥30 |
|
|
1350°C,3h |
- |
- |
- |
- |
20 |
30 |
35 |
|
|
Thermal conductivity W/(m.k) |
700°C |
0.15 |
0.25 |
0.35 |
0.40 |
0.65 |
0.70 |
0.75 |
|
1000°C |
- |
- |
0.40 |
0.45 |
0.75 |
0.75 |
0.90 |
|
|
Service temperature °C |
≥1100 |
≥1150 |
≥1200 |
≥1250 |
≥1300 |
≥1300 |
≥1350 |
|
Feature
1.Low bulk density and low thermal conductivity,
2.High mechanical strength,
3.Good thermal shock resistance,
4.Tiny linear variation,no cracking,
5.Resistant to scour and erosion,abrasion,
6.Good volume stability under high temperature,
7.Easy to operate: times and labor saving.
Application
Light weight insulating castable is widely used for metallurgy, machinery, petrochemical, electric power, building materials etc industry. Such as high temperature lining of kiln furnace,thermal equipment,flue,chimney, lining of heating furnace,heat treatment furnace,boiler,hot blast stoves etc.
