Brief Introduction
Magnesia spinel brick uses high purity magnesia and synthetic electro-fused spinel and/or alumina are used as raw materials, magnesia spinel bricks have good thermal mechanical properties and good characteristics of hanging kiln shell.At the same time, the product has low permeability and can resist the penetration of alkali salt and liquid phase in cement. As an excellent material, magnesite spinel brick can be used in metallurgy, building materials, chemical industry, national defense, scientific research, aerospace, medical equipment components and household appliances.
Application
- Furnaces of metallurgy industry, heat treatment furnace.
- Furnaces of chemical industry and construction industry.
- Furnace of incineration of garbage, recirculating fluidized bed furnace.
Features
Magnesia spinel refractory brick is featured with spalling resistance, high temperature creep resistance, high refractoriness under load, slag resistance, and good thermal shock resistance, being widely used in the lining of the ladle, open hearth, and the cement rotary kiln.
Technical Datas
| Product | Magnesia Spinel Bricks | ||
| Model | MLJZ-R63A | MLJZ-R63B | |
| MgO% ≥ | 85 | 80 | |
| Al2O3 ≥ | 3 | 3 | |
| Fe2O3≤ | 7.5 | 7.5 | |
| SiO2 ≤ | 0.9 | 2 | |
| ZiO2≥ | |||
| Apparent Porosity≤ | 16-17 | 16-17 | |
| Bulk Density≥ | 30 | 2.9 | |
| Cold Crushing Strength≥ | 50 | 45 | |
| 0.2.Mpa Refractoriness Under Load(℃)≥ | 1660 | 1630 | |
| Thermal Shock Resistance | 1100℃ water cooling, times | 10 | 8 |
| 950℃water cooling, times | 100 | 80 | |
| Heat Conductivity | 2.5 | 2.5 | |
