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Dry material for tundish

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Dry material for tundish

The main raw materials of tundish working lining dry material are sintered magnesia, high-purity magnesia and fused magnesia, with phenolic Resin (dry powder) and inorganic salt as binder. During construction, the dry material flows freely from the gap between the mold and the permanent lining, then start the mold to vibrate for a few minutes or use the tamping method to knot, then ignite and bake in the mold to 200~300℃, and keep the temperature for 1.5~2 hours , After cooling and solidifying, a complete, uniform and long service life working lining is formed. The environment-friendly dry material has no peculiar smell, no smoke, and no pollution to the environment during baking.
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Tundish work lining dry material, environmentally friendly Dry feed

The main raw materials of tundish working lining dry material are sintered magnesia, high-purity magnesia and fused magnesia, with phenolic Resin (dry powder) and inorganic salt as binder. During construction, the dry material flows freely from the gap between the mold and the permanent lining, then start the mold to vibrate for a few minutes or use the tamping method to knot, then ignite and bake in the mold to 200~300℃, and keep the temperature for 1.5~2 hours , After cooling and solidifying, a complete, uniform and long service life working lining is formed. The environment-friendly dry material has no peculiar smell, no smoke, and no pollution to the environment during baking.

Physical and chemical indicators are shown in the following table:

            item      ;       Item 

        ref      mark

    MgO+SiO2               ;     %

            ≥88

Bulk Density        g/cm3 

200℃×2h

            ≥2.0

Room temperature compressive strength
MPa

200℃×2h

            ≥5

1500℃×3h

            ≥10

Room temperature flexural strength
MPa

200℃×2h

            ≥2

1500℃×3h

            ≥6

Reburn line changes       %

1500℃×3h

          0~-1.2

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Dry material for tundish
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