Method for manufacturing cast strip
AssigneeNippon Steel Corporation
InventorNaotsugu YOSHIDA
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Abstract
There is provided a cast strip manufacturing method including: supplying a molten steel stored in a tundish (18) to a molten steel pool portion (16) formed by a pair of rotating cooling rolls (11) and a pair of side dams via an immersion nozzle (20); and forming and growing a solidified shell on a circumferential surface of the cooling roll (11) to manufacture a cast strip (1), in which a Si additive is added to the molten steel in the tundish (18), a Si concentration of the molten steel is adjusted to be within a fixed range, and a temperature of the molten steel in the tundish (18) is controlled to be within a fixed range.
Claims6
A cast strip manufacturing method comprising:
- supplying a molten steel stored in a tundish to a molten steel pool portion formed by a pair of rotating cooling rolls and a pair of side dams via an immersion nozzle;
- and
- forming and growing a solidified shell on a circumferential surface of the cooling roll to manufacture a cast strip,
- wherein a Si additive is added to the molten steel in the tundish from an initial stage to a final stage of casting, a Si concentration of the molten steel is adjusted to be within a fixed range, and a temperature of the molten steel in the tundish is controlled to be within a fixed range.
Dependencies are inferred from the claim text.