Product Description
Product Description:
CorundumRefractory castableIt has the characteristics of high abrasion resistance, good fluidity, etc., which is convenient for construction.It is mainly used for parts that are easy to scour and wear, such as the combustion chamber, separator and flue of circulating fluidized bed boiler.
Product Features:
Product Usage:
Mainly used in the furnace belt of circulating fluidized bed, hanging screen, (water-wall type) cyclone separator and other thin-walled furnace walls, high wear resistance, erosion resistance and The ramming layer of the tortoise shell net, plusIndustrial equipment such as the lining of the first-stage and second-stage reformer of synthetic ammonia.
Physical and chemical indicators:
name | Corundum wear-resistant castable | Mullite wear-resistant castable | ||||
model | GY1650 | GY1600 | GY1550 | ML1650 | ML1450 | |
Refractoriness ℃ | 1790 | 1770 | 1770 | 1790 | 1710 | |
Use temperature °C | 1650 | 1600 | 1550 | 1650 | 1450 | |
chemical composition% | Al2O3 | ≥90 | ≥82 | ≥80 | ≥55 | ≥48 |
Fe2O3 | - | - | - | ≤1.0 | ≤1.0 | |
Bulk density g/cm3 | 110℃×24h | 2.8~3.1 | 2.7~3.1 | 2.7~3.1 | 2.3~2.6 | 2.2~2.4 |
Flexural/compressive strength MPa | 110℃×24h | ≥9/90 | ≥9/80 | ≥9/60 | ≥12/70 | ≥10/70 |
1350℃×3h | ≥13/100 | ≥11/90 | ≥11/80 | ≥15/100 | ≥15/80 | |
Line change after burning% | 1350℃×3h | ±0.4 | ±0.5 | ±0.5 | ±0.4 | ±0.4 |
Thermal shock stability (900℃ water cooling) times | ≥20 | ≥25 | ≥25 | ≥25 | ≥25 | |
Wear resistance cc (after burning at 1350℃) | ≤7 | ≤8 | ≤8 | ≤8 | ≤8 | |