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Magnesia alumina spinel bricks for glass furnace

MgO(%):76～90; Al₂O₃(%):8～22; CaO(%)<1.5; SiO₂(%)<0.6; Fe₂O₃(%)<0.8
Thermal Resistance(℃)>1700
Thermal shock resistance (1000℃/ air）>30 Times

Application:

As glass furnace refractories, magnesia alumina spinel bricks can be used as checker bricks for the middle and upper parts of regenerators.

　　Magnesia alumina spinel bricks for glass furnace use high purity sintered magnesia and sintered spinel as main materials, reasonable gradation, being high pressure pressed and sintered at high temperature.

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Technical Specification	Unit	MA-08	MA-18	MA-13
Thermal Resistance	℃	>1700	>1700	>1700
Bulk Density	kg/m³	2900-3050	2900-3050	2800-3000
Apparent Porosity	%	13-16	15-18	17-19
Compressive Strength	N/mm²	55-100	55-100	55-100
Temperature deformation under load
To5	℃	1700	1700	1700
T5	℃	1760	1760	1760
Thermal shock resistance(1000 °C / air)	Times	>30	>30	>30
The chemical composition
MgO	%	85-90	76-81	79-84
Al₂O₃	%	08-12	18-22	13-17
CaO	%	<1.5	<1.6	<2.0
SiO₂	%	<0.6	<0.8	<1.2
Fe₂O₃	%	<0.8	<0.9	<0.8
Technical data above are for reference.It can be adjusted as clients request.

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Magnesia alumina spinel bricks for glass furnace

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