EP1965938A1 - Verfahren und einrichtung zum erzeugen von metallischen warmbändern insbesondere aus leichtbaustahl - Google Patents
Verfahren und einrichtung zum erzeugen von metallischen warmbändern insbesondere aus leichtbaustahlInfo
- Publication number
- EP1965938A1 EP1965938A1 EP06818104A EP06818104A EP1965938A1 EP 1965938 A1 EP1965938 A1 EP 1965938A1 EP 06818104 A EP06818104 A EP 06818104A EP 06818104 A EP06818104 A EP 06818104A EP 1965938 A1 EP1965938 A1 EP 1965938A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casting
- casting belt
- strip
- gas
- belt
- 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
- 238000000034 method Methods 0.000 title claims abstract description 16
- 229910000746 Structural steel Inorganic materials 0.000 title abstract 2
- 238000005266 casting Methods 0.000 claims abstract description 54
- 239000000155 melt Substances 0.000 claims abstract description 9
- 238000012546 transfer Methods 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000007711 solidification Methods 0.000 claims abstract description 5
- 230000008023 solidification Effects 0.000 claims abstract description 5
- 238000005098 hot rolling Methods 0.000 claims abstract description 3
- 239000011261 inert gas Substances 0.000 claims abstract 3
- 239000007789 gas Substances 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 5
- 239000011324 bead Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 238000009749 continuous casting Methods 0.000 claims description 2
- 230000005284 excitation Effects 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing 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
-
- 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
- B22D11/0648—Casting surfaces
- B22D11/0654—Casting belts
-
- 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
- B22D11/0697—Accessories therefor for casting in a protected atmosphere
Definitions
- the invention relates to a method for producing metallic hot strips, in particular made of lightweight steel according to the preamble of claim 1, as well as a device according to the preamble of claim 7.
- melt is fed from a feed vessel via a runner onto a revolving casting belt of a horizontal strip casting plant.
- the abandoned melt solidifies to a pre-strip with a thickness in the range between 6 - 20 mm.
- the pre-strip is subjected to a hot rolling process.
- the object of the invention is to provide a method and a device for producing metallic hot strips, in particular made of lightweight steel, in which the problems described above do not occur. This object is achieved starting from the preamble in conjunction with the characterizing features of claim 1. Advantageous developments and an apparatus for producing Warmbändem are the subject of the other claims.
- the heat transfer and the contact is reduced between the solidifying to a Vorband strand and the casting belt. This can be achieved with a variety of measures, each of which is effective on its own or in combination.
- the inventive method is basically suitable for the production of hot strips of a variety of metallic materials, especially for lightweight steel.
- a first proposal aims to reduce the contact time between casting belt and solidifying strand. This is achieved by locally vibrating the casting belt by means of an electromagnetic system.
- an electromagnetic system which works similar to a speaker, arranged below the casting belt. Essential for the functioning of the system is that the installation site is located at a location where a sufficiently strong strand shell has already formed.
- a further proposal is in the direction of reducing the heat transfer,
- a gas in particular a mixed gas of inert and reducing gas is given in the task area of the melt between the casting trough and casting belt.
- the reducing gas is hydrogen.
- the gas is applied over the entire width of the casting belt.
- the gas volume flow is low and corresponds more to a fog. If the volume flows are too great, the planar formation of the underside of the strand would be disturbed.
- the discontinued mixed gas causes the surface of the underside of the strand is almost free of scale.
- a bare surface means lower heat radiation, so that the heat transfer between the solidifying belt and the casting belt is significantly reduced.
- a third proposal, in which the casting tape is structured, has also proved to be very effective.
- Preferably longitudinal grooves are embossed in the casting direction.
- nubs distributed over the casting belt can also be formed.
- the use of longitudinal beads has the advantage that the manufacturer ment is relatively simple by a smooth belt is pulled through a profiled roller pair.
- any type of structuring of the casting belt leads to a reduction in the heat transfer between the solidifying strand and the casting belt.
- the mapping of the beads through the melt leads by the shrinkage occurring during solidification to a local lifting of the strand shell and thus to a reduction of the contact surface. This means a reduction in the heat transfer and the friction between the strand and the casting belt and can be used to increase the process reliability in an in-line production of casting and rolling.
- the casting speed In an in-line production, the casting speed must ideally be synchronous to the rolling speed. In reality, however, there are often deviations, which, however, may not be too big, because the opening act otherwise tears off. For example, deviations of the synchronous speed of> 0.5 m / s are considered a problem. If these deviations can not be dealt with, a buffer, a so-called looper, must be installed in front of the mill stand.
- FIG. 1a is a front view of the structuring according to the invention of the casting belt
- FIG. 1b is a cross-section in the direction A-A in FIG. 1a
- FIG. 2 shows a longitudinal section of the arrangement according to the invention of an electromagnetic system
- FIG. 3 shows a longitudinal section of the coating of the underside of the strand
- FIG. 4 is a plan view of FIG. 3.
- FIG. 1 a shows a front view of a structure of the casting strip 1 according to the invention. Evident is the lying in the transport direction rear guide roller 2, with the running it in the direction of arrow 3 casting belt 1. Indicated are arranged on the upper side running side boundaries 4, 4 '.
- FIG. 2 shows a second proposal for reducing the heat transfer, the illustration in longitudinal section showing the application area of a horizontal strip casting plant.
- the plant has as a main element a melting vessel 6, an inlet 7 with a casting channel 8 adjoining thereto.
- the melt 9 contained in the melting vessel 6 runs out of the casting channel 8 and is fed onto a continuous casting belt 1.
- an electromagnetic system 10 is disposed below the casting belt 1. It works on the principle of a loudspeaker and stimulates the casting belt 1 to vibrate. As a result, the contact times of the solidifying melt with the casting belt 1 are reduced. However, the vibrational excitation is only possible if the melt bath on the bottom has formed a sufficiently strong strand shell. Therefore, the electromagnetic system 10 must be located further away from the application area.
- FIG. 3 shows a third proposed solution. It shows, in the same longitudinal section, the feeding area of a strip caster as in FIG. 2, so that the same reference numerals are used for the same parts.
- the third proposed solution is characterized in that prior to the task of the melt 9 on the casting belt 1, a blasting with a mixed gas is made.
- a hollow body 12 is disposed below the runner 8 and above the front guide roller 11.
- a brush 13 is placed in front of the hollow body 12.
- the hollow body 12 is connected to a supply line 14 (FIG. 4). After switching on the gas supply flows from the hollow body 12, the mixed gas along the gap between the casting belt 1 and the bottom runner 8 to directly to the task area. This prevents that on the casting belt 1 ⁇ first solidifying strand shell scales. She stays almost naked.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Continuous Casting (AREA)
- Coating With Molten Metal (AREA)
- Heat Treatment Of Steel (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005062854A DE102005062854A1 (de) | 2005-12-23 | 2005-12-23 | Verfahren und Einrichtung zum Erzeugen von metallischen Warmbändern insbesondere aus Leichtbaustahl |
| PCT/DE2006/002082 WO2007071225A1 (de) | 2005-12-23 | 2006-11-22 | Verfahren und einrichtung zum erzeugen von metallischen warmbändern insbesondere aus leichtbaustahl |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1965938A1 true EP1965938A1 (de) | 2008-09-10 |
| EP1965938B1 EP1965938B1 (de) | 2010-09-29 |
Family
ID=37735169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06818104A Not-in-force EP1965938B1 (de) | 2005-12-23 | 2006-11-22 | Verfahren und einrichtung zum erzeugen von metallischen warmbändern insbesondere aus leichtbaustahl |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20090266503A1 (de) |
| EP (1) | EP1965938B1 (de) |
| KR (1) | KR101380698B1 (de) |
| CN (1) | CN101346202B (de) |
| AT (1) | ATE482780T1 (de) |
| AU (1) | AU2006329116B2 (de) |
| DE (2) | DE102005062854A1 (de) |
| RU (1) | RU2397042C2 (de) |
| UA (1) | UA87787C2 (de) |
| WO (1) | WO2007071225A1 (de) |
| ZA (1) | ZA200805573B (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101588724B1 (ko) * | 2009-03-11 | 2016-01-26 | 잘쯔기터 플래시슈탈 게엠베하 | 열간압연 스트립을 제조하는 방법 및 3상 경량 강으로부터 제조된 열간압연 스트립 |
| KR101563606B1 (ko) | 2009-03-11 | 2015-10-27 | 잘쯔기터 플래시슈탈 게엠베하 | 열간압연 스트립을 제조하는 방법 및 페라이트계 강으로부터 제조된 열간압연 스트립 |
| DE102009012984B4 (de) * | 2009-03-12 | 2013-05-02 | Salzgitter Flachstahl Gmbh | Gießdüse für eine horizontale Bandgießanlage |
| DE102009012985A1 (de) * | 2009-03-12 | 2010-09-23 | Salzgitter Flachstahl Gmbh | Gießdüse für eine horizontale Bandgießanlage |
| DE102009038974B3 (de) | 2009-08-21 | 2010-11-25 | Salzgitter Flachstahl Gmbh | Verfahren zum Erzeugen von Warmband mittels Bandgießen mit über den Bandquerschnitt einstellbaren Werkstoffeigenschaften |
| DE102011010040B3 (de) * | 2011-02-02 | 2012-08-02 | Salzgitter Flachstahl Gmbh | Verfahren und Einrichtung zum Erzeugen eines gegossenen Bandes aus Stahl mit über den Bandquerschnitt und die Bandlänge einstellbaren Werkstoffeigenschaften |
| DE102011056930A1 (de) * | 2011-12-22 | 2013-06-27 | Borgwarner Beru Systems Gmbh | Elektrische Heizeinrichtung |
| DE102012013425A1 (de) | 2012-07-03 | 2014-01-09 | Salzgitter Flachstahl Gmbh | Kontinuierlich arbeitende Bandgieß- und Walzanlage |
| DE102015215961A1 (de) | 2015-08-21 | 2017-02-23 | Schaeffler Technologies AG & Co. KG | Vorrichtung zur Kraftsimulation an einem Betätigungselement eines Fahrzeuges, vorzugsweise ein Pedalfkraftsimulator |
| DE102015114725B3 (de) * | 2015-09-03 | 2016-12-08 | Salzgitter Flachstahl Gmbh | Schmelzenaufgabesystem für eine horizontale Bandgießanlage |
| DE102016116711A1 (de) | 2016-09-07 | 2018-03-08 | Salzgitter Flachstahl Gmbh | Verfahren zur Herstellung eines Metallbandes auf einer horizontalen Bandgießanlage |
| DE102017105570A1 (de) * | 2017-03-15 | 2018-09-20 | Salzgitter Flachstahl Gmbh | Horizontale Bandgießanlage mit optimiertem Gießband |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2597046A (en) * | 1948-06-25 | 1952-05-20 | Sendzimir Tadeusz | Method of producing tubular and sheet metals |
| CH633206A5 (de) * | 1978-11-03 | 1982-11-30 | Alusuisse | Kokille mit aufgerauhter oberflaeche zum giessen von metallen. |
| US4582117A (en) | 1983-09-21 | 1986-04-15 | Electric Power Research Institute | Heat transfer during casting between metallic alloys and a relatively moving substrate |
| DE3423834A1 (de) * | 1984-06-28 | 1986-01-09 | Mannesmann AG, 4000 Düsseldorf | Verfahren und vorrichtung zum kontinuierlichen giessen von metallschmelze, insbesondere von stahlschmelze |
| JPH02112854A (ja) * | 1988-10-20 | 1990-04-25 | Nippon Steel Corp | 金属薄帯連続鋳造装置 |
| CN2133386Y (zh) * | 1992-07-27 | 1993-05-19 | 北京科技大学 | 步进槽式连铸机 |
| JP3100798B2 (ja) * | 1993-06-08 | 2000-10-23 | 新日本製鐵株式会社 | 急冷金属薄帯製造装置 |
| DE4344954C1 (de) * | 1993-12-27 | 1995-06-14 | Mannesmann Ag | Transportband einer Bandstranggießeinrichtung zum Gießen von Bändern aus Metall |
| DE69621351T2 (de) | 1995-10-16 | 2003-01-09 | Alcoa Inc., Pittsburgh | Giessbänder zum giessen von metallen, verfahren zu deren herstellung und verwendung derselben |
| DE19824366A1 (de) * | 1998-05-30 | 1999-12-02 | Schloemann Siemag Ag | Strangführungssegment für Brammengießanlagen |
| CN2586549Y (zh) * | 2002-12-05 | 2003-11-19 | 宁夏惠冶镁业有限公司 | 半密封冷却式连续浇铸机 |
-
2005
- 2005-12-23 DE DE102005062854A patent/DE102005062854A1/de not_active Withdrawn
-
2006
- 2006-11-22 DE DE502006007992T patent/DE502006007992D1/de active Active
- 2006-11-22 UA UAA200809615A patent/UA87787C2/ru unknown
- 2006-11-22 WO PCT/DE2006/002082 patent/WO2007071225A1/de not_active Ceased
- 2006-11-22 EP EP06818104A patent/EP1965938B1/de not_active Not-in-force
- 2006-11-22 US US12/158,832 patent/US20090266503A1/en not_active Abandoned
- 2006-11-22 CN CN2006800488184A patent/CN101346202B/zh not_active Expired - Fee Related
- 2006-11-22 AU AU2006329116A patent/AU2006329116B2/en not_active Ceased
- 2006-11-22 KR KR1020087018097A patent/KR101380698B1/ko not_active Expired - Fee Related
- 2006-11-22 RU RU2008130392/02A patent/RU2397042C2/ru not_active IP Right Cessation
- 2006-11-22 AT AT06818104T patent/ATE482780T1/de active
-
2008
- 2008-06-25 ZA ZA200805573A patent/ZA200805573B/xx unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007071225A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| UA87787C2 (ru) | 2009-08-10 |
| DE502006007992D1 (de) | 2010-11-11 |
| ATE482780T1 (de) | 2010-10-15 |
| KR20080089433A (ko) | 2008-10-06 |
| CN101346202A (zh) | 2009-01-14 |
| EP1965938B1 (de) | 2010-09-29 |
| WO2007071225A1 (de) | 2007-06-28 |
| AU2006329116B2 (en) | 2011-07-14 |
| DE102005062854A1 (de) | 2007-07-05 |
| ZA200805573B (en) | 2009-04-29 |
| AU2006329116A1 (en) | 2007-06-28 |
| US20090266503A1 (en) | 2009-10-29 |
| RU2397042C2 (ru) | 2010-08-20 |
| CN101346202B (zh) | 2011-12-07 |
| RU2008130392A (ru) | 2010-01-27 |
| KR101380698B1 (ko) | 2014-04-02 |
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