Application
Features:
Fused Alumina Magnesia Spinel is a novel type of high-purity synthetic refractory material produced by melting alumina and high-purity light-burned magnesia in an electric tilting furnace at temperatures exceeding 2000 degrees Celsius, followed by rapid cooling.
1. It's widely used to iron & steel, cement and industrial kilns industries, etc
2. It's mainly used to produce high grade alumina-magnesia brick, high performance alumina-magnesia castables, sliding nozzle, ladle brick, top brick for open hearth furnace etc.
3. It's a ideal material to replace magnesia-chrome refractories. In addition, it is used in refractory products, prefabricated parts, and unshaped refractory materials.
Chemical Composition
| Chemical Composition | MA-72 | MA-75 | MA-78 | MA-85 |
| Al2O3%≥ | 70 - 74 | 74 - 77 | 77 - 82 | 82 - 87 |
| MgO%≤ | 24 - 28 | 21 - 24 | 16 - 21 | 11 - 16 |
| SiO2%≤ | 0.4 | 0.4 | 0.4 | 0.4 |
| Fe2O3%≤ | 0.25 | 0.25 | 0.25 | 0.25 |
| Apparent Porosity %≤ | 5 | 3 | 3 | 3 |
| Bulk Density g/cm3≥ | 3.3 | 3.3 | 3.3 | 3.3 |
1. The utilization of advanced electric arc tilting furnace technology enhances the smelting temperature and enables continuous high-temperature production, consequently enhancing the aluminum-magnesium spinel's quality.
2. The customization needs of customers are fulfilled.
3. Using advanced production technology and formula technology, the impurity content in the product is lower.
4. It can improve materials' thermal shock resistance and can be provided with good anti-stripping capacity.
5. It can effectively improve slag resistance and thermal shock resistance of refractory and unrefractory products.
Melting Process
Tilting Furnace - Transfert - Cool Down - Barmac Crusher & Sorting - Sand Making - Warehouse
QC
For the magnesium aluminum spinel, the chemical composition of Al2O3, MgO, SiO2, Fe2O3, CaO Moisture, and LOI need to be tested, and the content of Al2O3 and MgO needs to be above 98%.
Our spinels are divided into four series according to the difference in magnesium and aluminum content: MA-72 (MgO≤24-28%), MA-75 (MgO≤21-24%), MA-78 (MgO≤16-21%), MgO≤11-16%). If you have other specifications, all can be customized.
We achieve a melting temperature of 2300℃ and dedicate 24 hours to the melting process, aiming for superior quality. To ensure consistent quality standards, our furnace operates continuously unless there are unavoidable circumstances./p>
All our melting furnaces are Tilting with 6.5 m diameter.
Our annual output of spinel is 10,000 tons.
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