High-quality and high-strength castable for runner are produced with corundum,andalusite and sic as main materials,add-powder as-binding,compound additives,applied in iron line and slag line of main runner for large-volume blast furnace,meeting requirements of large-volume blast furnaces,hot metal through put more than 300,000Ton.
Items |
Chemical compositions
??%??
|
Breaking strength
??Mpa??
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Compressive strength??Mpa??
|
Linear change rate
(%)
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Bulk density
(g/cm3)
|
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Al2O3
|
SiC
|
F.C
|
(110?榴imes;24h)
|
(1450?榴imes;3h)
|
(110?榴imes;24h)
|
(1450?榴imes;3h)
|
(1450?榴imes;3h)
|
(110?榴imes;24h)
|
|
|
JCTG-T
Iron line
|
≥68
|
≥12
|
≥2
|
≥3.5
|
≥5.5
|
≥25
|
≥45
|
±0..5
|
≥2.8
|
|
JCTG-Z
Slag line
|
≥50
|
≥30
|
≥2
|
≥3.5
|
≥5
|
≥20
|
≥30
|
±0..5
|
≥2.7
|
Applic-ation areas |
Castables for iron and slag lines of main runner for large-volume blast furnace |
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