Magnesia Alumina Spinel Brick

Description

Magnesia Alumina Spinel Brick Introduction
  
Magnesia-Alumina Spinel Brick is in order to improve the heat stability of magnesia brick, add alumina oxide in ingredient to generate the magnesia brick which the main material is magnesia-alumina spinel. The advantage of magnesia-alumina spinel brick: good heat stability, in the process of use, it will have reaction with clinker and produce a thin layer of calcium aluminate maskant, which makes the liquid not easy to penetrate, its anti-stripping performance is better than the direct bonded magnesia chrome brick.
 
Application of Magnesia Alumina Spinel Brick
 
1.The magnesia-alumina spinel can be used in the cement kiln, not only avoid the chrome pollution, and has good anti-stripping performance.
 
2.It can be used in refractory carstables for ladles, which greatly improve the anti-erosion ability. It is widely applied to steel-making refractory material. The preparation of high quality pre-synthertic spinel provide a new material for amorphous  and fixed high purity refractory.
 
Rongsheng Refractory Magnesia Alumina Spinel Brick Technical Data 
 

Items	Index
MgO,  %	≥82
Al2O3  %	13-15
Fe2O3  %	≤0.8
Bulk Density,(g/cm3)	≥2.98
Apparent Porosity,  %	≤17
Cold Crushing Strength,  MPa	≥60
Refractoriness Under Load, °C, [0.2MPa×0.6%]	≥1700
Thermal Shock Resistance, Times,  [1100°C, water-cooling]	≥15
Refractoriness, °C	≥1800