Brief Introduction
Fused magnesia alumina Spinel is produced by mixing the industrial alumina with the high-purity caustic-burned magnesia,smelting with high temperature more than2000℃in the electric arc furnaces. Its grain is well developed with the features of compact texture and uniform structure,and therefore is the high-grade raw material for producing refractory products with high in density and good thermal shock resistance (spineland magnesia,etc.).
Technical Datas
| ltem | Unit | RSAM-90 | RSAM-80 | RSAM-70 |
| AL₂O₃ | % | 88-92 | 82-87 | 71-76 |
| Mg0 | % | 8-12 | 12-17 | 22-27 |
| Ca0 | % | ≤0.4 | ≤0.4 | ≤0.6 |
| Fe₂O₃ | % | ≤0.35 | ≤0.35 | ≤0.35 |
| SiO2 | % | ≤0.25 | ≤0.4 | ≤0.4 |
| True Density | g/cm³ | ≥3.3 | ||
| Grain Size | mm | 0-1,1-3,3-5,5-8 | ||
| Powder Size | mesh | -180,-200,-320 | ||
Application
Fused magnesia alumina spinel has the characteristics of high bulk density,high thermal shock resistance,strong corrosion resistance and slag-resistance.It is widely used in iron and steel melting, cement rotary kiln and glass furnace,as the ideal material for manufacturing cast sliding plate,nozzle bricks,ladle bricks and open hearth furnace bricks,as well as the basic material for transition zone bricks of large cement kilns,medium cement kilns,refractory castable materials,and first-class and medium-class kiln furniture.