Plastic Refractory
Usually castable refractory’s plasticity index is less than 15%,mouldable refractory’s plasticity index is between 15%-40%.
1.Binder- clay,phosphoric acid,phosphate,aluminium sulfate etc.
2.Refractory aggregate and power
a.Fire clay(chamotte) based
b.High alumina based
c.Mullite and corundum based.
Technical data sheet
|
Item |
RS-45 |
RS-60 |
RS-70 |
RS-80 |
RS-90 |
|
|
Material |
Clay |
High Alumina |
Mullite |
High Alumina |
Corundum |
|
|
Max working temperature °C |
1500 |
1600 |
1700 |
1700 |
1700 |
|
|
Refractoriness °C |
1790 |
1790 |
1790 |
1790 |
1790 |
|
|
Bulk density g/cm3 |
≥2.2 |
≥2.5 |
≥2.5 |
≥2.7 |
≥2.9 |
|
|
Compressive strength MPa |
110°C |
12 |
10 |
12 |
20 |
30 |
|
1000°C |
35 |
45 |
50 |
25 |
50 |
|
|
1500°C |
40 |
50 |
60 |
45 |
70 |
|
|
Bending Strength MPa |
110°C |
2 |
2.5 |
3 |
4 |
10 |
|
1000°C |
4 |
5 |
8 |
4 |
12 |
|
|
1500°C |
6 |
6 |
10 |
7 |
12 |
|
|
Linear Variation % |
1500°C |
±0.8 |
±0.9 |
±0.5 |
±0.5 |
±1.0 |
|
Thermal conductivity w/(m.k) |
350°C |
0.55 |
0.57 |
0.74 |
0.97 |
1.46 |
|
800°C |
0.91 |
0.96 |
0.87 |
1.78 |
1.85 |
|
Feature
1.Excellent fluidity and plasticity,high refractoriness,
2.Good performance to thermal shock, anti-stripping,corrosion and abrasion resistance
3.Good volume stability, good associative property, low water absorption,
4.No need for any chemical additives, convenient installation to reach high efficiency.
Application
Mouldable refractory is widely used for metallurgy,machinery,petrochemical,electric power etc industrial kiln furnace. Such as high temperature lining of boiler,heating furnace,heat treatment furnace,cement rotary kiln,shaft kiln,forge furnace soaking furnace,annealing furnace, sintering furnace electric furnace etc thermal equipment.
