Amy Ai
Leave a messageHigh temperature mortar is made of high quality corundum, chromium oxide and other raw materials by adding different additives and combining with ultra-fine powder technology. It has good plasticity, convenient construction, good bonding performance, high strength after drying, anti-scouring, micro-expansion, high refractoriness, which can effectively prevent the leakage of liquid steel and improve the safety.
Item | Mortar for puring plug | Mortar for sliding plate | Mortar for nozzle | |
Al2O3 (%) ≥ | 85 | 80 | 85 | |
Cr2O3 (%) ≥ | 5 | 5 | 5 | |
SiO2 (%) ≤ | 0.5 | 0.5 | 0.5 | |
Bonding Strength (MPa) ≥ | 110℃×24h | 2 | 2 | 2 |
1500℃×3h | 8 | 8 | 8 | |
Reheating Linear Change (%) | 1500℃×3h | 0~+0.4 | 0~+0.3 | 0~+0.3 |
Refractoriness (℃) ≥ | 1680 | 1680 | 1680 |
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