Remelted rebound magnesium-chromium brick

Fused rebonded magnesia-chrome brick is manufactured with fully fused magnesia-chrome clinker. Through ultra-high temperature firing and heavy-pressure forming, it forms a complete direct-bonded crystal structure with extremely low porosity and super dens

Apparent porosity : 16~17

Cold crushing strength : 35~40Mpa



   PRODUCT DESCRIPTION

Introduction

Fused rebonded magnesia-chrome brick is manufactured with fully fused magnesia-chrome clinker. Through ultra-high temperature firing and heavy-pressure forming, it forms a complete direct-bonded crystal structure with extremely low porosity and super dense texture.

 

Features

- Ultra-strong slag & alkali corrosion resistance: Fully fused crystal structure effectively blocks slag penetration, showing excellent resistance to alkaline molten slag and high-temperature flue gas erosion.

- Super high density & ultra-low porosity: Dense internal structure minimizes pore channels, greatly improving anti-infiltration and anti-scouring performance.

- Excellent high-temperature stability: Extremely low high-temperature creep and ultra-high load softening temperature, no deformation or structural damage under long-term extreme high temperature and load.

- Reliable thermal shock resistance: Optimized fused grain grading balances strength and toughness, effectively avoiding cracking and spalling during frequent cold and hot alternation.

 

Application Areas

Mainly applied for core parts of high-temperature industrial furnaces with extreme slag corrosion and super long service life requirements.

Key lining of AOD, VOD, LF refining furnaces and severe erosion zones.


   TECHNIQUE DATA


Index  DMGe-12ADMGe-12BDMGe-16ADMGe-16BDMGe-18DMGe-20DMGe-14
MgO, %60605555554660
Cr₂O₃, %12121616182014
SiO₂, %2.53.52.53.52.52.52.5
Apparent porosity %16161616171616
0.2MPa refractoriness under load0.2MPa ℃1700170017001700170017001700
Cold crushing strength MPa35353535353540
10
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