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Slag dam for tundish
Slag dam for tundish

1. good erosion resistance 2. high strength in high temperature

Tundish slag dam adopts high quality fused magnesia, bauxite chamotte, white corundum, etc as the main raw materials, combined with small powder and superfine powder, adding an appropriate amount of coagulant and dispersant, precast molding, made of medium temperature baking process. It can be applied to continuous casting tundish. And slag dam with different service life and materials are designed according to users’ different smelting requirements.

Tundish slag dam is of good erosion resistance, molten steel scouring resistance, and high strength in high temperature. It can effectively block steel slag to flow to injection flow area, protecting the stopper from the molten steel impact. It is used to change the molten steel flow field, eliminate turbulence, eddy current and the bottom of stratosphere to purify the molten steel.

Name

Magnesia

High alumina

Alumina-magnesia

Corundum-spinel

Brand

DZY-1

DZY-2

DZY-3

DZY-4

Chemical composition%

Al2O3

--

≥80

≥70

≥85

MgO

≥80

--

≥12

≥5

Bulk density (110°C×24h)

≥2.80

≥2.80

≥2.80

≥3.00

Modulus of rupture MPa

110°C×24h

≥5

≥6

≥6

≥5

1500°C×3h

≥8

≥10

≥10

≥8

Crushing strength MPa

110°C×24h

≥40

≥40

≥45

≥40

1500°C×3h

≥60

≥80

≥70

≥60

Linear change rate %(1500°C×3h)

±0.5

±0.5

±0.5

0~+1.0

Slag dam for tundish

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