Tundish

Tundish

In the process of continuous casting, to transfer liquid steel from a steel teeming ladle to the mould, an intermediate vessel, called a tundish, is used. A tundishis a rectangular big end up refractory lined open container which may have a refractory lined cover on the top. The tundish bottom has one or more holes with slide gate(s) or stopper rod(s) for controlling the metal flow. It is used to feed liquid steel into the copper moulds of a continuous casting machine, so as to avoid splashing and give a smoother flow.

Due to the process layout, tundish refractory linings are designed to withstand thermal shock, prevent thermal loss, prevent oxidation, and resist erosion and corrosion.

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Our solutions are listed on the table below.

Area / Temperature (°C)Processing ConditionsSolution (Standard Conditions)
Side walls
Erosion
Corrosion
Thermal shock
Dossolite 1400-172
Höganäs FLOW LC 65, Höganäs CAST LC 60, Höganäs CAST LC 801
RoofHöganäs INSUL CC 1.5L
TubeHöganäs INSUL CC 1.5L
NozzelVictoria

Tundish can also be lined with Firebolts (refractory precasts) as shown in the model below.

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Our solution with firebolts for tundish is shown in the table below.

Area / Temperature (°C)Processing ConditionsSolution (Standard Conditions)
Side walls
Erosion
Thermal shock
Höganäs Cast LC 801 (firebotls)
Back up lining:
Viking 330
Bottom part
Erosion
Thermal shock
Victor HWM
Back up lining:
Viking 330
VIP 12 HS

For more information about our refractory solutions for steel industry, please contact us.