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Magnesia bricks for glass furnace regenerator

MgO (%)≥92; SiO₂ (%) ≤1.20; CaO (%)≤2; Fe₂O₃ (%)≤1.2
Bulk Density(g/cm³)≥2.90; Apparent Porosity(%)≤15
0.2mpa Refractoriness under load T0.6 (℃)≥1530

Application:

As glass furnace refractories, magnesia bricks can be used as checker bricks for the upper parts of regenerators under 1300～1100℃ because of high-temperature strength and high slag resistance.

　　Magnesia bricks use sintered magnesite or fused magnesia as main raw materials, being high pressure pressed and sintered in high temperature.

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Index	MG-92	MG-95	MG-97	MG-98
MgO (%)≥	92	95	97	98
CaO (%)≤	2.00	1.70	1.30	1.20
SiO₂ (%) ≤	1.20	1.00	0.70	0.60
Fe₂O₃ (%) ≤	1.20	1.00	0.80	0.50
Bulk Density(g/cm³)≥	2.90	2.95	2.95	3.00
Apparent Porosity(%) ≤	16	16	16	15
Cold Crushing Strength (Mpa) ≥	60	70	70	80
0.2mpa Refractoriness under load T0.6 (℃) ≥	1530	1650	1700	1700

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Magnesia bricks for glass furnace regenerator

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