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Ramming mass for launders in blast furnaces
Ramming mass for launders in blast furnaces
The main raw materials of castable and ramming mass for launders in blast furnaces are super bauxite, corundum, SiC, etc., and pure calcium aluminate cement and ultrafine powder are binding agents with antioxidants and anti-burst agents as additives. It features good anti-scour anti-erosion, convenient construction, quick baking and long service life. The main construction methods are vibration pouring, gravity pouring and ramming.
brand No. |
TGD-60 |
TGD-70 |
|
Al2O3 ; % |
≥60 |
≥70 |
|
SiC+C % |
≥12 |
≥14 |
|
Bulk Density g/cm3 |
110℃×24h |
≥2.5 |
≥2.6 |
Room temperature compressive strength |
110℃×24h |
≥25 |
≥30 |
1450℃×3h |
≥30 |
≥40 |
|
Reburn line changes % |
1450℃×3h |
±0.5 |
±0.5 |
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