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Electrofused semi - recombined magnesia - chrome brick/Used for steel smelting, refining ladle/VOD furnace/AOD furnace
Product description:
Magnesia-chrome brick made by electrofused magnesia-chrome sand as raw material is called recombined magnesia-chrome brick, and the product with partial electrofused magnesia-chrome sand is called semi-recombined magnesia-chrome brick.
Category of Refractory Brick/Fire Brick:
Magnesia-chrome brick is divided into ordinary magnesia-chrome brick, directly combined magnesia-chrome brick, electrofused semi-recombined magnesia-chrome brick and electro fused magnesia-chrome brick.
Features:
Accordi According to the characteristics of microstructure high temperature crystal phase direct bonding, recombined and semi-recombined magnesia-chrome bricks are the direct bonding bricks with higher direct bonding rate.They are characterized by high strength, erosion resistance, erosion resist -ance, spalling resistance, good slag resistance and thermal shock stability.Mainly used for smelting nonferrous metals, pierrey-smith, Noranda, Ausmelt, Flash famace, electric steelmaking furnace, converter, VOD furnace, refining ladle, etc.The recombined magnesia-chrome brick is more suitable for the high erosion area of the furnace than the semi-combined magnesia-chrome brick.
Physical and chemical indicators:
| Brand | Electrofused semi-recombined magnesia-chrome brick | |||||
|---|---|---|---|---|---|---|
| XY-BDMGe-24 | XY-BDMGe-20 | XY-BDMGe-18 | XY-BDMGe-16 | |||
| MgO | 52 | 60 | 62 | 65 | ||
| Cr2O3 | 24 | 20 | 18 | 16 | ||
| CaO | 1.5 | 1.5 | 1.5 | 1.5 | ||
| Fe2O3 | 9.0 | 9.0 | 8.0 | 8.0 | ||
| SiO2 | 1.2 | 1.2 | 1.2 | 1.5 | ||
| AL2O3 | 8.0 | 8.0 | 8.0 | 7.0 | ||
| Apparent porosity,≤ | 15 | 15 | 16 | 16 | ||
| Bulk density/g﹒cm-3,≥ | 3.15 | 3.15 | 3.15 | 3.15 | ||
| Crushing strength/ MPa,≥ | 50 | 50 | 50 | 50 | ||
| Refractoriness under load,0.2MPa,℃(≥) | 1700 | 1700 | 1700 | 1700 | ||
| 1100℃ Cair cooling,blowing Themal shock resistanc | 4 | 4 | 4 | 4 | ||
Production and inspection :
Packaging and transportation: