EP2406024A1 - Casting nozzle for a horizontal continuous casting system - Google Patents
Casting nozzle for a horizontal continuous casting systemInfo
- Publication number
- EP2406024A1 EP2406024A1 EP10711534A EP10711534A EP2406024A1 EP 2406024 A1 EP2406024 A1 EP 2406024A1 EP 10711534 A EP10711534 A EP 10711534A EP 10711534 A EP10711534 A EP 10711534A EP 2406024 A1 EP2406024 A1 EP 2406024A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle according
- casting nozzle
- casting
- endless belt
- hollow block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005266 casting Methods 0.000 title claims abstract description 31
- 238000009749 continuous casting Methods 0.000 title abstract 2
- 239000000155 melt Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000006228 supernatant Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0631—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a travelling straight surface, e.g. through-like moulds, a belt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/045—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for horizontal casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/064—Accessories therefor for supplying molten metal
- B22D11/0642—Nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
Definitions
- the invention relates to a pouring nozzle for a horizontal strip casting plant, in particular for the casting of steel strip. In such casting plants must be applied from the nozzle, which forms a pouring channel, the liquid steel on a cooled endless belt.
- Such a casting nozzle is known from “Direct Strip Casting” (DSC) - Option for the Production of New Steel Grades "- steel research 74 (2003) no. 11/12 p. 724-731.
- a web of refractory material projecting transversely to the flow direction is arranged in the direction of flow, first at the top and then at the bottom of the pouring nozzle channel. Both webs form a weir in order to be able to retain in the sense of the effect of a siphon possible small slag residues and oxides in the melt.
- the transfer of the liquid steel on the cooled endless belt is slidably along a slope in the outlet area.
- the object of the invention is to improve the known casting nozzle to the effect that the melt distributed evenly when hitting the endless belt in the transverse direction.
- the object is achieved on the basis of the preamble of the main claim with the features of the characterizing part.
- the casting nozzle according to the invention is characterized in that seen in the flow direction of the hollow cross-section of the hollow block in the outlet area is uniformly reduced towards the outlet and the end face of the bottom is formed to the surface of the endless belt in such a way that the melt is perpendicular to the endless belt.
- the front side of the floor can be formed vertically or provided with an undercut.
- the cross-sectional reduction is preferably carried out by reducing the clear height distance.
- An increase in the floor compared to the ceiling has proven to be a favorable option.
- the distance reduction can be realized particularly simply if it takes place linearly.
- the desired effect is achieved without problems if the surface of the floor rises linearly as far as the outlet edge, viewed in the flow direction.
- the hollow block can be made in one piece or in several parts of separate elements.
- a multi-part of the hollow block may consist of separate floor element with a one-piece consisting of ceiling and two side walls hood or a separate ceiling element, a separate floor element and two separate side elements.
- the rectangular or undercut arrangement of the end face of the bottom element of the casting nozzle with respect to the surface of the endless belt causes a better distribution of melt on the endless belt.
- the outflowing melt thus almost hits perpendicular to the endless belt and generates an additional transverse pulse.
- the height from the outlet edge to the endless belt should preferably be 30 mm.
- the slope of the run-up slope of the floor element is linear, similar to a ramp.
- the extent of the increase in the flow direction should be at least 30 mm, preferably it is> 50 mm.
- the outlet edge is provided with a chamfer. This chamfer simultaneously reduces the wear on the highly stressed outlet edge.
- the pouring nozzle according to the invention is explained in detail.
- FIG. 2 shows a cross section along the line B-B in FIG. 1,
- Figure 1 shows in a longitudinal section and Figure 2 in a cross section schematically an embodiment of the pouring nozzle according to the invention 1. It is designed as a narrow rectangular hollow block and is composed in this embodiment of a ceiling element 2, a bottom element 3 and two side elements 4, 5 (FIG 2). All these parts 2 - 5 are made of refractory material, preferably ceramic and form a horizontally lying rectangular channel. 6 As known from the prior art, the bottom element 3 has a web extending into the channel 6 and extending transversely to the flow direction, which forms a so-called lower weir 7.
- the pouring nozzle 1 is connected upstream of an inlet channel 8, which is connected to a distributor, not shown here.
- weirs 7, 10 act together like a siphon and are supposed to retain any slag residues and oxides still present in the melt.
- Both weirs 7, 10 can be arranged both in the pouring nozzle 1 and in the inlet channel 8 or as shown here, the upper weir 10 in the inlet channel 8 and the lower weir 7 in the pouring nozzle. 1
- the inlet channel 8 is surrounded by a frame 22 made of metal, which is tongue-like at the end to clamp the adjacent casting nozzle 1 can.
- the surface of the bottom element 3 has a run-on bevel 11, the rise of which takes place linearly and which extends up to the outlet edge 12.
- the spout is not provided with a bevel, but rather the end face 21 of the bottom element 3 is at right angles with respect to the surface of the endless belt 14.
- the run-on slope 11, viewed in the direction of flow, has an extension 18 of at least 30 mm, preferably> 50 mm.
- the beginning of the run-on slope 11 is provided in the immediate vicinity of the lower weir 7.
- this is this provided with a chamfer 23.
- the height 19 from the lower edge of the chamfer 23 to the surface of the endless belt 14 is preferably 30 mm.
- the end face 21 of the bottom element 3 opposite the end face 26 of the ceiling element 2 has a projection 20.
- FIG. 3 shows, in a section C - C of FIG. 2, a further measure for distributing the outflowing melt 13 more uniformly on the endless belt 14 in the transverse direction.
- the bottom element 3 in both edge regions of the projection (20) has a sloping in the flow direction inclined surface 24, 25.
- the respective inclined surface 24, 25 forms a triangle whose one corner is formed by the beginning of the starting bevel 11, the second corner by the outlet edge 12 and the third corner by the end face of the respective side element 4, 5.
- This supernatant 20 should be at least 10 mm in order to be able to act early on the outflowing melt.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009012984A DE102009012984B4 (en) | 2009-03-12 | 2009-03-12 | Casting nozzle for a horizontal strip casting plant |
PCT/DE2010/000213 WO2010102599A1 (en) | 2009-03-12 | 2010-02-15 | Casting nozzle for a horizontal continuous casting system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2406024A1 true EP2406024A1 (en) | 2012-01-18 |
EP2406024B1 EP2406024B1 (en) | 2012-12-26 |
Family
ID=42224481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10711534A Not-in-force EP2406024B1 (en) | 2009-03-12 | 2010-02-15 | Casting nozzle for a horizontal continuous casting system |
Country Status (10)
Country | Link |
---|---|
US (1) | US8408279B2 (en) |
EP (1) | EP2406024B1 (en) |
KR (1) | KR101666454B1 (en) |
CN (1) | CN102369071B (en) |
AU (1) | AU2010223680B2 (en) |
DE (1) | DE102009012984B4 (en) |
RU (1) | RU2518864C2 (en) |
UA (1) | UA105041C2 (en) |
WO (1) | WO2010102599A1 (en) |
ZA (1) | ZA201106209B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011010040B3 (en) | 2011-02-02 | 2012-08-02 | Salzgitter Flachstahl Gmbh | Method and device for producing a cast strip of steel with material properties adjustable over the strip cross section and the strip length |
DE102012013425A1 (en) | 2012-07-03 | 2014-01-09 | Salzgitter Flachstahl Gmbh | Continuous strip casting and rolling plant |
CN102974787A (en) * | 2012-12-06 | 2013-03-20 | 广西南南铝箔有限责任公司 | Horizontal casting and rolling machine lip |
DE102015215961A1 (en) | 2015-08-21 | 2017-02-23 | Schaeffler Technologies AG & Co. KG | Device for force simulation on an actuating element of a vehicle, preferably a pedal force simulator |
DE102015114725B3 (en) | 2015-09-03 | 2016-12-08 | Salzgitter Flachstahl Gmbh | Melt feed system for a horizontal strip caster |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH633205A5 (en) * | 1978-01-30 | 1982-11-30 | Alusuisse | DEVICE FOR FEEDING A METAL MELT IN BAND CASTING. |
US4593742A (en) * | 1982-04-28 | 1986-06-10 | Hazelett Strip-Casting Corporation | Apparatus for feeding and continuously casting molten metal with inert gas applied to the moving mold surfaces and to the entering metal |
DE3369474D1 (en) * | 1982-04-28 | 1987-03-05 | Hazelett Strip Casting Corp | Method and apparatus for feeding and continuously casting molten metal with inert gas applied to the moving mold surfaces and to the entering metal |
JPS59125244A (en) * | 1982-12-28 | 1984-07-19 | Sumitomo Metal Ind Ltd | Spout for charging device of twin-belt continuous casting machine |
EP0258469A1 (en) * | 1986-08-29 | 1988-03-09 | Fried. Krupp Gesellschaft mit beschränkter Haftung | Device for belt casting of steel in a twin belt casting ingot mould |
US6173755B1 (en) * | 1996-05-23 | 2001-01-16 | Aluminum Company Of America | Nozzle for continuous slab casting |
US5804136A (en) * | 1996-11-27 | 1998-09-08 | Hazelett Strip-Casting Corporation | Radial-flow distributor for wide uniform nonturbulent non-dribbling pouring of molten metal into a continuous metal-casting machine-methods and apparatus |
FR2774930B1 (en) * | 1998-02-13 | 2000-05-19 | Pechiney Rhenalu | STRIPS OF ALUMINUM ALLOY WITH HIGH SURFACE HOMOGENEITY AND METHOD OF MANUFACTURING SUCH STRIPS |
US20060191664A1 (en) * | 2005-02-25 | 2006-08-31 | John Sulzer | Method of and molten metal feeder for continuous casting |
DE102005062854A1 (en) * | 2005-12-23 | 2007-07-05 | Salzgitter Flachstahl Gmbh | Method and device for producing metallic hot strips, in particular made of lightweight steel |
-
2009
- 2009-03-12 DE DE102009012984A patent/DE102009012984B4/en not_active Expired - Fee Related
-
2010
- 2010-02-15 AU AU2010223680A patent/AU2010223680B2/en not_active Ceased
- 2010-02-15 US US13/255,594 patent/US8408279B2/en not_active Expired - Fee Related
- 2010-02-15 UA UAA201111964A patent/UA105041C2/en unknown
- 2010-02-15 WO PCT/DE2010/000213 patent/WO2010102599A1/en active Application Filing
- 2010-02-15 EP EP10711534A patent/EP2406024B1/en not_active Not-in-force
- 2010-02-15 KR KR1020117021002A patent/KR101666454B1/en active IP Right Grant
- 2010-02-15 CN CN201080011339.1A patent/CN102369071B/en not_active Expired - Fee Related
- 2010-02-15 RU RU2011141295/02A patent/RU2518864C2/en not_active IP Right Cessation
-
2011
- 2011-08-23 ZA ZA2011/06209A patent/ZA201106209B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2010102599A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2010102599A1 (en) | 2010-09-16 |
AU2010223680B2 (en) | 2016-02-18 |
EP2406024B1 (en) | 2012-12-26 |
ZA201106209B (en) | 2012-06-26 |
CN102369071B (en) | 2014-07-09 |
CN102369071A (en) | 2012-03-07 |
KR20110126136A (en) | 2011-11-22 |
AU2010223680A1 (en) | 2011-09-22 |
US8408279B2 (en) | 2013-04-02 |
RU2011141295A (en) | 2013-04-20 |
DE102009012984A1 (en) | 2010-09-23 |
KR101666454B1 (en) | 2016-10-14 |
UA105041C2 (en) | 2014-04-10 |
RU2518864C2 (en) | 2014-06-10 |
DE102009012984B4 (en) | 2013-05-02 |
US20120132389A1 (en) | 2012-05-31 |
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