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Magnesia Bricks For Glass Kiln

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Magnesia bricks are required in the wall of the regenerator because it is resistant to the erosion of solid powder components in the kiln batching and alkaline gaseous medium.


  • High refractoriness.
  • Good alkali slag resistance.
  • Load softening start temperature is high.


TypeStraight brickBarrel brickStraight brickBarrel brickStraight brickBarrel brick
MgO (%)≥95≥95≥97≥97≥98≥98
SiO2 (%)≤2≤2≤1.2≤1.2≤0.6≤0.6
CaO (%)≤2≤2≤1.5≤1.5≤1≤1
Bulk Density(g/cm³)≥2.95≥2.92≥3≥2.98≥3.05≥3.02
Apparent porosity (%)≤17≤18≤16≤17≤16≤17
Normal temperature compressive strength MPa≥60≥40≥60≥50≥60≥50
0.2MPa load softening temperature≥1680≥1650≥1700≥1670≥1700≥ 1700
Thermal shock stability (times)101010101010


Magnesia bricks for glass kiln are suitable for all major high temperature kilns.

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