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Magneite alumina spinel brick

Magnesite-alumina spinel brick is a high-grade alkaline refractory brick with periclase and spinel as the main mineralogical. It is formed by high-pressure molding and high-temperture sintering.

Other name: Magneia alumina spinel brick

Model Number: HCR MAJ-75,HCR MAJ-80,HCR MAJ-84

Certification: ISO9001-14001

Minimum Order Quantity: 5 MT

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Magneite alumina spinel brick

Introduction:

Magnesite-alumina spinel brick is a high-grade alkaline refractory brick with periclase and spinel as the main mineralogical. It is formed by high-pressure molding and high-temperture sintering. In order to improve the thermal shock resistance of the magnesite brick, alumina or bauxite clinker fine powder is introduced into the furnish to form a magnesium aluminum spinel matrix, then a magnesite-aluminum brick is finished.

Advantages:

Good thermal shock resistance and high refractoriness under load

Application:

Glass melting furnace, cement rotary kiln, the roof of open hearth and reverberatory


Magneite alumina spinel brick physical and chemical

ItemHCR MAJ-75HCR MAJ-80HCR MAJ-84
MgO  %758084
AlO %81214
Bulk Density g/cm³2.92.952.95
Cold Crushing Strength Mpa454560
Apparent   porosity %191918
Thermal   shock resistance at 1,100   water cooling121520
Refractoriness   under load of 0.2Mpa()160017001750
 Main Applications              - Metal Line, Free Board for   General Ladle
              - Permanent Line for Ladle   (Wall)
              - firing zone in rotary   kiln
              - upper and lower   transition zone for rotary kiln




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