Compound brown corundum brick

Update: 2015/11/15      View:
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Introduction

The compound brown corundum brick is made of fused brown corundum and silicon carbide as starting materials, added with special additives, through mould press process and sintering before fine machining. The brick is characterized by good alkali resistance and slag corrosion resistance, which is suitable for lining the bottom, hearth ceramic cup, tuyere, iron notch and slag notch.

Item
Index
Al2O3 ,%
≥78
SiC , %
8-14
Fe3O4 , %
≤1.0
Bulk density , g/cm3
≥2.9
Apparent porosity ,%
≤15
Common compressive strength , MPa
≥100
0.2Mpa Refractoriness under load , ℃
≥1660
Permanent linear change (1500℃×3h) , %
0~+0.2
Thermal expansion(1000℃) , %
0~+0.5
Slag corrosion ratio, %
≤10
Common compressive strength after alkaline corrosion tset, Mpa
≥70

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