Micropore corundum brick

Update: 2015/11/15      View:
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Introduction

With fused corundum as main material, adding with special additives, adopting exceptive technique to realize micropore, the product is endowed with excellent properties which are up to or surpass those of the imported products of the same kind, some of them such as alkali resistance, slag resistance and micropore ratio are better than those of imported brown corundum block for ceramic cup. 

Index
Item
WGZ-1
WGZ-2
Al2O3 ,%
≥80
≥85
Fe2O3 , %
≤1.0
≤0.8
Bulk density , g/cm3
≥3.10
≥3.20
Apparent porosity,%
≤16
≤14
Common compressive strength , MPa
≥140
≥160
Permeability, mDA
≤1.0
≤0.5
Corrosion index to hot metal,%
≤ 1.5
≤1.0
Corrosion resistance to slag,%
≤8
≤6
Average pore size, μm
≤0.5
≤0.3
<1μm Pore volume,%
≤70
≤75
Thermal conductivity (6000C), W/m.k
≤ 5
≤  5
Corrosion resistance to alkaline
Excellent, no cracks
Excellent, no cracks

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