EP0186852A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Tundish for continuous casting of free cutting steel
Assignee: Nippon Steel Corp
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Filing: 1985-12-17
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Granted: —
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Expires: 2005-12-17
Abstract
Abstract A tundish (2) for continuous casting of a free-cutting steel comprises a molten steel teeming zone into which a low melting metal is added to a molten metal as a machinability element, a dispersing means (7) provided in the flow path of the molten steel between the molten steel teeming zone and a discharge outlet (10) for the molten steel, and a dam (8) installed downstream the dispersing means (7).
Inventors
- 👤 Kazuo Ishiyama
- 👤 Masashi Yoshida
- 👤 Isao Suzuki
- 👤 Ichiro Kudo
- 👤 Akira Otaki
- 👤 Noboru Okuyama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 20:25
CPC Classifications
B; B22; B22D; B22D41/00; B22D41/003; B22D1/00; B22D1/002; B22D1/005; B22D11/00; B22D11/10; B22D11/11; B22D11/116; B22D11/117; B22D11/118
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
88 words
A tundish for continuous casting of a free-cutting steel comprising a molten steel teeming zone into which a low melting metal as a machinability element is added, a dispersing means provided in the flow path from said molten steel teeming zone to a discharge outlet for said molten steel so as to promote a uniform dispersion of said low melting metal, and a dam provided downstream said dispersing means, whereby the low melting metal caused to settle by said dam is prevented from flowing into said discharge outlet.
Claim 2
Dependent Claim
88 words
A tundish for continuous casting of a free-cutting steel comprising a molten steel teeming zone into which a low melting metal as a machinability element is added, a dispersing means provided in the flow path from said molten steel teeming zone to a discharge outlet for said molten steel so as to promote a uniform dispersion of said low melting metal, and a dam provided downstream said dispersing means, whereby the low melting metal caused to settle by said dam is prevented from flowing into said discharge outlet.
Claim 3
Dependent Claim
44 words
A tundish as claimed in Claim 1 in which said molten steel teeming zone is defined by a first weir provided upstream said dispersing means, and said dispersing means is provided downstream said first weir and upstream a second weir provided upstream said dam.
Claim 4
Dependent Claim
30 words
A tundish as claimed in Claim lor 2 in which a convex center portion tapering in the downstream direction is provided on the base of said molten steel teeming zone.
Claim 5
Dependent Claim
41 words
A tundish as claimed in any of claims 1 to 3 comprising a shroud which surrounds a nozzle of a ladle pouring said molten steel into said tundish said shroud having a length so as to dip into said molten steel.
Claim 6
Dependent Claim
43 words
A tundish as claimed in any of claims 1 to 4 in which said dam comprises dual dams of an inner dam and an outer dam whereby settled low melting metal is prevented from flowing into said discharge outlet for said molten steel.
Claim 7
Dependent Claim
51 words
A tundish as claimed in any of claims 1 to 5 in which a passage zone for said low melting metal comprises a plural layered construction of porous brick, safety brick with slit, and steel jacket with slit in order from the top layer thereof and being provided downstream said dam.
References Cited (Backward Citations)
No citation records indexed.
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