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Refractory cushion mortar
product Overview:
Refractory cushion mortar is a special Refractory mortar that cushions the thermal expansion stress of refractory masonry made of compressible refractory raw materials. Mainly used in blast furnace, coke oven, hot blast furnace and other industrial kiln refractory masonry to buffer thermal expansion stress. According to its physical and chemical indicators, it is divided into four brands: HCN-L, HCN-G1, HCN-G2, and FHCN-TG.
Physical and chemical indicators:
| Product name | High aluminum Refractory cushion mortar | Silicon Refractory cushion mortar | Non-aqueous silicon carbide Refractory cushion mortar | ||
| Grade | HCN-L | HCN-G1 | HCN-G2 | FHCN-TG | |
| Al2O3 % ≥ | 70 | ||||
| SiO2 % ≥ | 80 | 70 | |||
| SiC % ≥ | 50 | ||||
| Consistency ≤ | 240 | 220 | 220 | 260 | |
|
Compressive strength Mpa ≥ |
110℃×16h | 0.5 | 0.5 | 0.5 | （200℃）1.0 |
| 1000℃×3h | 0.2 | （500℃，3h）0.5 | - | 0.25 | |
| Linear shrinkage after burning % ≤ | （1000℃，3h）1.0 | （500℃，3h）1.0 | （800℃，3h）1.0 | （1000℃，3h）1.0 | |
|
Thermal compression ratio % ≥ （1 Mpa，1000℃） |
15 | 15 | 55 | 30 | |
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