As an amorphous refractory material, Plastic Refractory is made up of refractory granular and powdery materials (70% to 80%), plastic clay as blinders, and appropriate plasticizer. Plastic clay is an important component of plastic refractory, which has a great influence on the bonding strength, plasticity, volume stability and refractoriness of plastic refractory.
Features of Plastic Refractory
1.Excellent plasticity and Easy to construct 2.Good resistance to abrasion and slag erosion 3.High strength and Flexible dry-out 4.High density
Application of Plastic Refractory
Plastic refractory is used as maintenance material for blast furnace tapholes and plugging tuyeres, and as linings for heating furnace, soaking pit furnace, annealing furnace, sintering furnace in the Iron and Steel Industry.
Parameter Of Plastic Refractory
| Item | ||
| Al2O3 % (≥) | 70-80 | |
| Refractoriness ℃ (≥) | 1790 | |
| Bulk Density (g/cm3) | 2.7-2.9 | |
| Compression Strength (MPa) | 110℃×24h | 70 |
| 815℃×3h | 90 | |
| Rupture Strength (MPa) | 110℃×24h | 12 |
| 815℃×3h | 14 | |
| Thermal Shock Resistance(1000℃, Water Cooling), Times （>） | 30 | |
| Plasticity Index （%） | 20-40 | |
