Composite brown corundum bricks
The product is primarily manufactured from brown corundum and silicon carbide as main raw materials, with special additives, and is delivered by molding, sintering, fine grinding, processing and pre-assembling. It features excellent alkaline resistance and low slag corrosion rate. It applies to the bottom of the blast furnace with different capacity, the ceramic cup masonry of the furnace cylinder, the air port, the iron port, the slag port and other parts of the furnace.
Item |
Index |
Al2O3 , % |
≥78 |
SiC , % |
8~14 |
Fe2O3 ,% |
≤1.0 |
Bulk density, g/cm3 |
≥2.9 |
Apparent porosity, % |
≤15 |
Normal temperature compressive strength CCS, MPa |
≥100 |
Softening onset temperature at 0.2 MPa load |
≥1660 |
Reburning line change rate(1500℃×3h) |
0~+0.2 |
Thermal expansion rate(1000℃) |
0~+0.5 |
Resistance to slag corrosion, % |
≤10 |
CCS after alkaline corrosion test,MPa |
≥70 |
Relevant case
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Henan Winna Group Industries Co., Ltd.
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Address:
Beishankou Town, Gongyi, Henan Province
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