The product is made of corundum and mullite as the main raw materials , with ultrafine powder, external additives, and high-temperature binder. It has the characteristics of high wear resistance and good thermal shock resistance. It is suitable for large circulating fluidized bed ( CFB ) boilers, water-coal slurry gasification furnaces, and high-temperature kiln linings of garbage incinerators. Characteristics of corundum mullite plastic: ·High temperature stability: The refractoriness is as high as 1750 ° C and the structure remains stable for a long time. ·High temperature strength and creep resistance: high thermal strength, high load softening temperature and low creep rate. ·Thermal shock resistance: Low thermal expansion coefficient, can withstand sudden temperature changes and reduce thermal stress damage. ·Wear and scour resistance: High hardness gives excellent wear resistance and resistance to high-speed airflow or material scour. ·Volume stability: small volume
Metallurgical industry : linings of steel smelting converters, electric furnaces, and heating furnaces;
Chemical industry: containers, coal gasifier linings;
Electric power industry: boilers, hot air ducts and other high-temperature parts.
project | index | |||
CMP-1 | CMP-2 | CMP-3 | ||
Al 2 O 3 % | ≥ 70 | ≥ 75 | ≥ 85 | |
SiO 2 % | ≤ 25 | ≤ 20 | ≤ 10 | |
Bulk density g/cm 3 | ≥ 2.7 | ≥ 2.8 | ≥ 2.9 | |
Flexural strength at room temperature MPa | 110 ℃× 24h | ≥ 10 | ≥ 11 | ≥ 12 |
1500 ℃× 3h | ≥ 12 | ≥ 14 | ≥ 15 | |
Normal temperature compressive strength MPa | 110 ℃× 24h | ≥ 80 | ≥ 90 | ≥ 100 |
1500 ℃× 3h | ≥ 100 | ≥ 110 | ≥ 120 | |
Heating permanent line change % 1500 ℃× 3h | ± 0.3 | ± 0.3 | ± 0.3 | |
Thermal shock stability Second-rate 1100 ℃ water cooling | ≥ 25 | ≥ 25 | ≥ 15 | |
Normal temperature wear resistance cm3 | ≤ 8 | ≤ 7 | ≤ 6 | |
Maximum operating temperature ℃ | 1550 | 1600 | 1650 | |
Note: Technical parameters can be adjusted according to customer requirements | ||||
Metallurgical industry : linings of steel smelting converters, electric furnaces, and heating furnaces;
Chemical industry: containers, coal gasifier linings;
Electric power industry: boilers, hot air ducts and other high-temperature parts.
project | index | |||
CMP-1 | CMP-2 | CMP-3 | ||
Al 2 O 3 % | ≥ 70 | ≥ 75 | ≥ 85 | |
SiO 2 % | ≤ 25 | ≤ 20 | ≤ 10 | |
Bulk density g/cm 3 | ≥ 2.7 | ≥ 2.8 | ≥ 2.9 | |
Flexural strength at room temperature MPa | 110 ℃× 24h | ≥ 10 | ≥ 11 | ≥ 12 |
1500 ℃× 3h | ≥ 12 | ≥ 14 | ≥ 15 | |
Normal temperature compressive strength MPa | 110 ℃× 24h | ≥ 80 | ≥ 90 | ≥ 100 |
1500 ℃× 3h | ≥ 100 | ≥ 110 | ≥ 120 | |
Heating permanent line change % 1500 ℃× 3h | ± 0.3 | ± 0.3 | ± 0.3 | |
Thermal shock stability Second-rate 1100 ℃ water cooling | ≥ 25 | ≥ 25 | ≥ 15 | |
Normal temperature wear resistance cm3 | ≤ 8 | ≤ 7 | ≤ 6 | |
Maximum operating temperature ℃ | 1550 | 1600 | 1650 | |
Note: Technical parameters can be adjusted according to customer requirements | ||||
