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High quality industrial furnace used high chrome refractory brick
High chrome refractory brick, based on corundum and fused chromium oxide as the main raw materials, with micro-powder and other additives, through mixing, molding and drying, are made by baking at high temperature in shuttle kiln.
It is characterized by high temperature, good corrosion resistance, thermal shock and bulk stability under high temperature etc .
Parameter
| Item | High Cr2O3 | Middle chrome | Chrome-Corundum | Chrome-Corundum | Chrome-Corundum |
| brick | brick | brick | brick | brick | |
| Cr2O3 % | ≥93 | ≥86 | ≥60 | ≥30 | ≥12 |
| Al2O3 % | -- | -- | ≤38 | ≤68 | ≥80 |
| Fe2O3 % | -- | -- | ≤0.2 | ≤0.2 | ≤0.5 |
| Apparent porosity | ≤17 | ≤17 | ≤14 | ≤16 | ≤18 |
| Bulk density | ≥4.3 | ≥4.2 | ≥3.63 | ≥3.53 | ≥3.3 |
| Cold crushing strengh | ≥100 | ≥100 | ≥130 | ≥130 | ≥120 |
| Refractoriness under load | ≥1680 | ≥1670 | ≥1700 | ≥1700 | ≥1700 |
| Reheating linear change rate | ±0.2 | ±0.2 | ±0.2 | ±0.2 | ±0.2 |
Application
High chrome refractory brick is mainly used in the key parts of the furnaces for coal chemical industry, chemical industrial, alkali-free glass fiber and garbage incinerator, etc.
It also used for the linings of carbon shoot furnace and copper smelting furnace, the skid rail molten pool of glass furnaces, and tapping platform of rolling mill furnace.
Package
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