The special castable for coal injection pipe adopts high-strength materials such as corundum and mullite as aggregates and ultrafine powder as binder. It is a high-performance refractory castable with good high-temperature performance, high high-temperature strength, good integrity, no cracking, erosion resistance, and wear resistance. Product features : 1.High temperature stability: Using high-strength materials such as corundum, mullite, and silicon carbide (SiC) as aggregates, combined with ultrafine powder technology, it can maintain structural stability at high temperatures above 1400°C, and some formulas can withstand temperatures up to 1700°C; 2.Thermal shock resistance: By optimizing aggregate grading (such as low expansion coefficient mullite) and adding steel fibers, the risk of crack growth caused by sudden temperature changes is significantly reduced; 3.Wear and erosion resistance : High hardness corundum and silicon carbide account for 60%-80%, which can resist
Building materials industry: cement rotary kiln (rotary kiln), lime rotary kiln burner coal injection pipe part
project | Special castable for coal injection pipe | |
Maximum operating temperature, ℃ | 1700 | |
Al 2 O 3 +SiC , % ≥ | 90 | |
CaO , % ≤ | 2.2 | |
Bulk density 110℃*24h , g/cm³ | 2.8 | |
Flexural strength, MPa | 110℃*24h | 10 |
1100℃*3h | 12 | |
Compressive strength, MPa | 110℃*24h | 110 |
1100℃*3h | 120 | |
Heating line change, % | 1100℃*3h | ±0.3 |
1500℃*3h | ±0.4 | |
Construction water addition amount, % | 5-6 | |
Note: Technical parameters can be adjusted according to customer requirements |
Building materials industry: cement rotary kiln (rotary kiln), lime rotary kiln burner coal injection pipe part
project | Special castable for coal injection pipe | |
Maximum operating temperature, ℃ | 1700 | |
Al 2 O 3 +SiC , % ≥ | 90 | |
CaO , % ≤ | 2.2 | |
Bulk density 110℃*24h , g/cm³ | 2.8 | |
Flexural strength, MPa | 110℃*24h | 10 |
1100℃*3h | 12 | |
Compressive strength, MPa | 110℃*24h | 110 |
1100℃*3h | 120 | |
Heating line change, % | 1100℃*3h | ±0.3 |
1500℃*3h | ±0.4 | |
Construction water addition amount, % | 5-6 | |
Note: Technical parameters can be adjusted according to customer requirements |