Magnesia Alumina Spinel
Magnesia alumina spinel is made from high quality alumina and light-burned magnesia in electric arc furnace. The fused magnesia-alumina spinel has outstanding refractoriness, good erosion resistance, high anti-corrosion, high resistance against flaking, good thermal stability, high temperature...
Magnesia alumina spinel is made from high quality alumina and light-burned magnesia in electric arc furnace. The fused magnesia-alumina spinel has outstanding refractoriness, good erosion resistance, high anti-corrosion, high resistance against flaking, good thermal stability, high temperature resistance, high slag-resistance, good thermal shock resistance, etc. It also has high true density, low water absorption, low thermal expansion coefficient ,good thermal stability and good thermal shock resistance.
| 0-1mm 1-3mm 3-5mm 5-8mm 8-10mm 10-15mm... | ||||
| -180mesh -200mesh -325mesh... | ||||
| AM-70 | AM-90 | |||
| Al2O3 | 71-76 | 88-92 | ||
| 22-27 | 8-12 | |||
| Less than or equal to 0.65 | Less than or equal to 0.4 | |||
| SiO2 | Less than or equal to 0.4 | Less than or equal to 0.25 | ||
| Fe2O3 | Less than or equal to 0.4 | Less than or equal to 0.4 | ||
| Na2O | Less than or equal to 0.4 | Less than or equal to 0.4 | ||
| Greater than or equal to 3.2 | Greater than or equal to 3.3 | |||
| 1. To replace magnesia chrome sand to make high grade refractory bricks in lining bricks for cement rotary kiln to avoid chrome pollution and has higher resistance againt flaking. | ||||
| 2.Used to make refractory castables for ladles to improve anti-corrosion of steel plate lining. It is widely applied in refractory material, steel smelting, cement rotary kiln and glass kiln. | ||||
| 3.As an ideal material to make continuous casting sliding plate, ladle lining brick, nozzle bricks, continuous casting nozzle and open hearth bricks. Also as a basic material in big large cement kiln, bricks in transition zone of neutral cement kiln and kiln furniture for medium and high temperature applications. |
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