Description of High-strength Wear-resistant Refractory Plastic For Boiler Lining
Wear-resistant refractory plastic has the advantages of convenient construction, good plasticity, and good wear resistance. The wear layer after construction has high strength and good wear resistance.
Article | Silicon carbide | Zirconium Chrome Corundum | ||
NMK4 | NMK5 | NMK6 | NMK7 | |
Al2O3 % | / | / | / | ≥80 |
SiC % | ≥40 | ≥60 | ≥70 | / |
Cr2O3 % | / | / | / | ≥3 |
ZrO2 % | / | / | / | ≥2 |
Bulk Density g/cm3 110℃×24h |
≥2.4 | ≥2.5 | ≥2.6 | ≥2.8 |
Permanent Linear Change % 1000℃×3h |
-0.4~0 | -0.5~0 | -0.6~0 | -0.6~0 |
Cold Crush Strength MPa 1000℃×3h |
≥60 | ≥70 | ≥80 | ≥90 |
Wear resistance at room temperature cm3 1000℃×3h |
≤7 | ≤6 | ≤5 | ≤5 |
Thermal shock stability cycle 1000℃ water cooling | ≥30 | ≥35 | ≥40 | ≥30 |
Plasticity Index % | 15~55 | |||
Plasticity W/(m·K) 1000℃ | 3~5 | 5~7 | 6~8 | 2~3 |
Maximum service temperature ℃ | 1400 | 1500 | 1600 | 1600 |