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山东国茂
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Castable for launders in blast furnaces

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Castable 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.
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Blast Furnace Castables

  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.

Blast furnace tap ditch castable, the physical and chemical indicators are shown in the following table:

         brand          No.

TGJ-50

TGJ-60

TGJ-70

      Al2O3              ;   %

   ≥50

   ≥60

   ≥70

      SiC+C                %

   ≥12

   ≥15

   ≥15

      CaO                  %

   ≤1.5

   ≤1.5

   ≤1.5

Bulk Density     g/cm3 

110℃×24h

   ≥2.5

   ≥2.6

   ≥2.7

Room temperature compressive strength
MPa

110℃×24h

   ≥30

   ≥40

   ≥40

1450℃×3h

   ≥40

   ≥45

   ≥45

Room temperature flexural strength
MPa

110℃×24h

   ≥4

   ≥5

   ≥5

1450℃×3h

   ≥6

   ≥7

   ≥7

Reburn line changes    %

1450℃×3h

   ±0.5

  &n

We could not find any corresponding parameters, please add them to the properties table

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