CN101346202A - Method and device for producing hot metallic strip, in particular from lightweight structural steel - Google Patents
Method and device for producing hot metallic strip, in particular from lightweight structural steel Download PDFInfo
- Publication number
- CN101346202A CN101346202A CNA2006800488184A CN200680048818A CN101346202A CN 101346202 A CN101346202 A CN 101346202A CN A2006800488184 A CNA2006800488184 A CN A2006800488184A CN 200680048818 A CN200680048818 A CN 200680048818A CN 101346202 A CN101346202 A CN 101346202A
- Authority
- CN
- China
- Prior art keywords
- cast strip
- strip
- watering
- gas
- described device
- 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.)
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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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Continuous Casting (AREA)
- Heat Treatment Of Steel (AREA)
- Coating With Molten Metal (AREA)
Abstract
The object of the invention is to improve the quality of hot cast strip. The object is achieved in terms of the method by a method for producing hot metallic strip, in particular from lightweight structural steel, wherein a melt is delivered under inert gas by means of a runner onto a circulating casting belt of a horizontal strip casting installation, hardens to form a pre-strip with a thickness of between 6 and 20 mm and, after hardening throughout, the pre-strip is subjected to a hot rolling process, which is characterized in that the heat transfer and the contact (surface area, time) between the strand hardening to form a pre-strip and the casting belt is reduced, and characterized by a device for carrying out the method.
Description
The present invention relates to a kind of by claim 1 method of particularly producing hot metallic strip as described in the preamble, and a kind of by claim 7 device as described in the preamble by lightweight structural steel.
The method (steel research (" steel research ") 74 (2003), No.11/12,724-731 page or leaf) by lightweight structural steel production hot-rolled band of known a kind of the type.
In known method, liquation by input pod by pouring basin supply to the horizontal strip Casting Equipment one the circulation water on the Cast Strip.By sharply cooling off, make the liquation of being supplied with harden into the blank band of a thickness in the 6-20mm scope to watering the Cast Strip.After hardening fully, the blank band stands hot rolling to be handled.
In hardening process, may cause the deflection of blank band owing to material stress, this quality to the hot rolling band has adverse effect.Particularly, for some steel, owing to the too fast cooling in strand bottom surface causes irregular and large-area contraction.
In addition, excessive in the synchronizing speed deviation that friction excessive between the strand that waters Cast Strip and sclerosis causes casting between tape speed and the mill speed, thus, under the situation of worst, make casting blank cleavage.
If carry out online casting and rolling, this matching problem of synchronizing speed is very important all the time so.
The objective of the invention is, a kind of method and apparatus of particularly being produced hot metallic strip by lightweight structural steel is provided, the problems referred to above wherein do not occur.
The feature that this purpose accessory rights requires 1 preamble to set out in conjunction with its characteristic is achieved.The method that hot-rolled band is produced in good improvement design and being used to is the theme of all the other claims.
In accordance with the teachings of the present invention, reduce the strand that hardens into the blank band with water the heat transmission between the Cast Strip and contact (area, time).This point can take different measures to reach, and wherein, each measure both can also can be worked individually in combination with one another.
Be applicable on the methodological principle of the present invention by various metal materials and produce hot-rolled band, particularly also be suitable for lightweight structural steel.
The purpose of first suggestion is, reduces to water the time of contact between the strand of Cast Strip and sclerosis.This realizes in such a way, that is, make by means of an electromagnetic system and to water the Cast Strip local vibration.For this reason, below watering the Cast Strip, be provided with one and be similar to the electromagnetic system that loudspeaker works.For the function of this system importantly, the infield is positioned at a position that has formed enough firm base shell.
Another suggestion is reducing at the heat transmission.For this reason, at pouring basin and water in the liquation drainage area between the Cast Strip a kind of gas is provided, the gaseous mixture of forming by inertia and reducibility gas particularly.Described reducibility gas is hydrogen especially.
Be preferably in supply gas on the whole width that waters the Cast Strip.Gas flow is very little, is equivalent to many one and covers coating.When flow is too big, can be an impediment to the planar configuration of strand bottom surface.The mist that provides makes the surface of strand bottom surface almost not have oxide skin.Bright and clean surface means less heat radiation, thereby has significantly reduced at the band of sclerosis and water heat transmission between the Cast Strip.
By the 3rd suggestion, water the Cast Strip and be formed with structural texture, this proves very effective equally.Especially, stamp out the indent that distributes along the casting direction.Select as another kind, also can be configured in and water the burl that distributes and be provided with on the Cast Strip.Adopt the indent that vertically distributes that such advantage is arranged, that is, makes more conveniently, specifically manufacture is that it is right that a smooth band is pulled through a roller that is formed with concavo-convex profile.
Sure is that every kind of structural texture of watering the Cast Strip causes at the strand of sclerosis and the heat transmission of watering between the Cast Strip and reduces.By the profile duplication of liquation,, thereby reduced contact area when hardening owing to the contraction that occurs causes base shell part to lift to indent.This means at strand and the heat transmission and the friction of watering between the Cast Strip to be reduced, can be used for raising process reliability when casting and rolling on-line machining simultaneously.
For on-line machining, casting speed must be synchronous with mill speed in the ideal case.But usually have deviation actually, this deviation in no case allows too big, because otherwise the blank band will ftracture.For example, the deviation＞0.5m/s of synchronizing speed has just had problem at last.If this deviation can not be controlled, then a buffer unit, a so-called kink (Looper) must be installed in the rolling-mill housing front.
Describe method of the present invention in the accompanying drawings in detail.Accompanying drawing is represented:
Fig. 1 a front view that waters the Cast Strip structural texture of the present invention,
Fig. 1 b is along the sectional elevation of A-A direction among Fig. 1 a,
Fig. 2 presses the longitudinal section of the electromagnetic system of the present invention's setting,
The longitudinal section of the illiteracy coating of Fig. 3 strand bottom surface,
The vertical view of Fig. 4 Fig. 3.
In Fig. 1 a, express according to Cast Strip 1 structural texture of watering of the present invention with front view.Can see the slewing rollers 2 that are positioned at the back on the throughput direction and on it, water Cast Strip 1 along the direction of arrow 3 operations.Represented among the figure to be arranged on the side shield 4,4 of the accompany movement on the end face '.
Watering the rolling indent 5 that has longitudinally on the Cast Strip 1.In partial graph diagrammatic sketch 1b, can know and see, along a part in the cross section of A-A direction among Fig. 1 a.
Fig. 2 represents to be used for reducing second suggestion that heat is transmitted, and has represented among the figure that the vertical profile of the feed zone of horizontal strip casting equipment is looked.This equipment has a melt vessel 6, an input part 7 and is connected pouring basin 8 above it.The liquation 9 that is contained in the melt vessel 6 flows out from pouring basin 8, supplies with watering on the Cast Strip 1 in circulation.
In order to excite the local vibration of watering Cast Strip 1, below watering Cast Strip 1, an electromagnetic system 10 is set.It is by the principle work of loudspeaker and excite and water Cast Strip 1 vibration.This make sclerosis liquation with water the Cast Strip minimizing of 1 time of contact.But, have only when the molten bath has formed enough firm base shell on the bottom surface, could exciting.Therefore electromagnetic system 10 must be provided with away from feed zone.
Fig. 3 represents the third proposed projects.It has represented that the vertical profile the same with Fig. 2 of Strip casting equipment feed zone look, and therefore adopts same Reference numeral for identical parts.
The feature of the third proposed projects is, before supplying with liquation 9, covers to be layed onto with gaseous mixture and waters on the Cast Strip 1.For this reason, a hollow body 12 is being set below the pouring basin 8 and above preceding slewing rollers 11.In order to seal and better to distribute, at hollow body 12 pre-installed brushes 13 in order to be implemented in to water on 1 width of Cast Strip.
For realizing the gas supply, make hollow body 12 be connected (Fig. 4) with an input pipe 14.After gas input is connected, gaseous mixture from hollow body 12 along directly flowing in the feed zone in the slit of watering between Cast Strip 1 and pouring basin 8 bottom surfaces.Just prevent from thus watering the base shell scaling of firmization on the Cast Strip 1.Make it keep almost bright and clean.
The Reference numeral table
1 waters the Cast Strip
2 rear steering rollers
3 direction of rotation
4,4 ' side shield
5 vertical indents
6 melt vessels
7 input parts
8 pouring basins
9 liquations
10 electromagnetic systems
Slewing rollers before 11
12 hollow bodies
13 brushes
14 input pipes
Claims (16)
1. particularly produce the method for hot metallic strip by lightweight structural steel; wherein; liquation is adopting under the situation of protective gas the watering on the Cast Strip an of circulation that is fed into the horizontal strip Casting Equipment by pouring basin; it hardens into the blank band of a thickness between 6mm to 20mm; this blank band is standing hot rolling after sclerosis fully handles, and it is characterized by: will be reduced with watering the heat transmission between the Cast Strip and contact (area, time) at the strand that hardens into the blank band.
2. by the described method of claim 1, it is characterized by: make the described Cast Strip local vibration of watering.
3. by the described method of claim 2, it is characterized by: water the Cast Strip by electromagnetic exciting.
4. by the described method of claim 1-3, it is characterized by: before supplying with liquation, to pouring basin with water supply gas between the Cast Strip.
5. by the described method of claim 4, it is characterized by: described gas is a kind of mist, comprises as the inert gas of carrier and comprises reducibility gas.
6. by the described method of claim 5, it is characterized by: described reducibility gas is a hydrogen.
7. by the device of particularly producing hot metallic strip as the described method of claim 1-6 by lightweight structural steel, comprise: one contains the input pod of liquation, an elementary cooling zone and a connected secondary cooling district, described input pod has the pouring basin of horizontal distribution, described elementary cooling zone has the Cast Strip of watering of two slewing rollers and a circulation of being cooled off, described secondary cooling district has the roller-way that is contained in the housing, one first rolling-mill housing is connecting this secondary cooling district, it is characterized by: the described Cast Strip (1) of watering is equipped with a kind of structural texture.
8. by the described device of claim 7, it is characterized by: described structural texture has the indent (5) that longitudinally distributes.
9. by the described device of claim 7, it is characterized by: described structural texture has the burl that distributes and be provided with from the teeth outwards.
10. by the described device of claim 7, it is characterized by: below watering Cast Strip (1), a device (10) that is used for exciting is set.
11. by the described device of claim 10, it is characterized by: described device (10) is a calutron.
12. by the described device of claim 11, it is characterized by: the infield of described calutron is positioned at the zone of the firm base shell that has existed.
13. by the described device of claim 7, it is characterized by: in preceding slewing rollers (11) zone of Strip casting equipment, transverse to watering Cast Strip (1) hollow body (12) with wide seam is set in pouring basin (8) below, this hollow body is connected with a gas inlet pipe (14).
14. by the described device of claim 13, it is characterized by: described hollow body (12) extends on the whole width that waters Cast Strip (1).
15. by claim 13 and 14 described devices, it is characterized by: be provided with one in the below, outflow district of hollow body (12) and be connected and be close to the seal that waters on the Cast Strip (1) with hollow body (12).
16. by the described device of claim 15, it is characterized by: described seal is a brush (13).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005062854A DE102005062854A1 (en) | 2005-12-23 | 2005-12-23 | Method and device for producing metallic hot strips, in particular made of lightweight steel |
| DE102005062854.0 | 2005-12-23 | ||
| PCT/DE2006/002082 WO2007071225A1 (en) | 2005-12-23 | 2006-11-22 | Method and device for producing hot metallic strip, in particular from lightweight structural steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101346202A true CN101346202A (en) | 2009-01-14 |
| CN101346202B CN101346202B (en) | 2011-12-07 |
Family
ID=37735169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800488184A Expired - Fee Related CN101346202B (en) | 2005-12-23 | 2006-11-22 | Method and device for producing hot metallic strip, in particular from lightweight structural steel |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20090266503A1 (en) |
| EP (1) | EP1965938B1 (en) |
| KR (1) | KR101380698B1 (en) |
| CN (1) | CN101346202B (en) |
| AT (1) | ATE482780T1 (en) |
| AU (1) | AU2006329116B2 (en) |
| DE (2) | DE102005062854A1 (en) |
| RU (1) | RU2397042C2 (en) |
| UA (1) | UA87787C2 (en) |
| WO (1) | WO2007071225A1 (en) |
| ZA (1) | ZA200805573B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102369071A (en) * | 2009-03-12 | 2012-03-07 | 萨尔茨吉特法特尔有限公司 | Casting nozzle for a horizontal continuous casting system |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120121452A1 (en) * | 2009-03-11 | 2012-05-17 | Salzgitter Flachstahl Gmbh | Method for producing a hot rolled strip and hot rolled strip produced from triplex lightweight steel |
| WO2010102595A1 (en) | 2009-03-11 | 2010-09-16 | Salzgitter Flachstahl Gmbh | Method for producing a hot rolled strip and hot rolled strip produced from ferritic steel |
| DE102009012985A1 (en) * | 2009-03-12 | 2010-09-23 | Salzgitter Flachstahl Gmbh | Casting nozzle for a horizontal strip casting plant |
| DE102009038974B3 (en) | 2009-08-21 | 2010-11-25 | Salzgitter Flachstahl Gmbh | Method for producing steel hot strip with material characteristics adjustable over the band cross-section, comprises applying a steel melt by a casting groove on a running casting band of a horizontal strip casting plant |
| 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 |
| DE102011056930A1 (en) * | 2011-12-22 | 2013-06-27 | Borgwarner Beru Systems Gmbh | Electric heater |
| DE102012013425A1 (en) | 2012-07-03 | 2014-01-09 | Salzgitter Flachstahl Gmbh | Continuous strip casting and rolling plant |
| 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 |
| DE102016116711A1 (en) | 2016-09-07 | 2018-03-08 | Salzgitter Flachstahl Gmbh | Method for producing a metal strip on a horizontal strip casting plant |
| DE102017105570A1 (en) * | 2017-03-15 | 2018-09-20 | Salzgitter Flachstahl Gmbh | Horizontal strip caster with optimized casting belt |
Family Cites Families (10)
| 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 (en) * | 1978-11-03 | 1982-11-30 | Alusuisse | CHOCOLATE WITH Roughened Surface For Casting Metals. |
| 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 (en) * | 1984-06-28 | 1986-01-09 | Mannesmann AG, 4000 Düsseldorf | METHOD AND DEVICE FOR CONTINUOUSLY POURING METAL MELT, IN PARTICULAR STEEL MELT |
| JPH02112854A (en) * | 1988-10-20 | 1990-04-25 | Nippon Steel Corp | Metal strip continuous casting apparatus |
| CN2133386Y (en) * | 1992-07-27 | 1993-05-19 | 北京科技大学 | Step-by-step slot type continuous casting machine |
| JP3100798B2 (en) * | 1993-06-08 | 2000-10-23 | 新日本製鐵株式会社 | Quenched metal strip manufacturing equipment |
| DE4344954C1 (en) * | 1993-12-27 | 1995-06-14 | Mannesmann Ag | Conveyor belt of a continuous strip caster for casting strips of metal |
| ATE217822T1 (en) * | 1995-10-16 | 2002-06-15 | Alcoa Inc | CASTING BELT FOR CASTING METALS, METHOD FOR THE PRODUCTION AND USE OF THE SAME |
| CN2586549Y (en) * | 2002-12-05 | 2003-11-19 | 宁夏惠冶镁业有限公司 | Semi-sealed cooling type continuous casting machine |
-
2005
- 2005-12-23 DE DE102005062854A patent/DE102005062854A1/en not_active Withdrawn
-
2006
- 2006-11-22 AU AU2006329116A patent/AU2006329116B2/en not_active Ceased
- 2006-11-22 EP EP06818104A patent/EP1965938B1/en active Active
- 2006-11-22 US US12/158,832 patent/US20090266503A1/en not_active Abandoned
- 2006-11-22 KR KR1020087018097A patent/KR101380698B1/en not_active IP Right Cessation
- 2006-11-22 CN CN2006800488184A patent/CN101346202B/en not_active Expired - Fee Related
- 2006-11-22 RU RU2008130392/02A patent/RU2397042C2/en not_active IP Right Cessation
- 2006-11-22 UA UAA200809615A patent/UA87787C2/en unknown
- 2006-11-22 WO PCT/DE2006/002082 patent/WO2007071225A1/en active Application Filing
- 2006-11-22 DE DE502006007992T patent/DE502006007992D1/en active Active
- 2006-11-22 AT AT06818104T patent/ATE482780T1/en active
-
2008
- 2008-06-25 ZA ZA200805573A patent/ZA200805573B/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102369071A (en) * | 2009-03-12 | 2012-03-07 | 萨尔茨吉特法特尔有限公司 | Casting nozzle for a horizontal continuous casting system |
| CN102369071B (en) * | 2009-03-12 | 2014-07-09 | 萨尔茨吉特法特尔有限公司 | Casting nozzle for a horizontal continuous casting system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102005062854A1 (en) | 2007-07-05 |
| RU2008130392A (en) | 2010-01-27 |
| AU2006329116A1 (en) | 2007-06-28 |
| DE502006007992D1 (en) | 2010-11-11 |
| US20090266503A1 (en) | 2009-10-29 |
| EP1965938B1 (en) | 2010-09-29 |
| KR20080089433A (en) | 2008-10-06 |
| RU2397042C2 (en) | 2010-08-20 |
| ATE482780T1 (en) | 2010-10-15 |
| EP1965938A1 (en) | 2008-09-10 |
| WO2007071225A1 (en) | 2007-06-28 |
| CN101346202B (en) | 2011-12-07 |
| ZA200805573B (en) | 2009-04-29 |
| AU2006329116B2 (en) | 2011-07-14 |
| KR101380698B1 (en) | 2014-04-02 |
| UA87787C2 (en) | 2009-08-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20191122 |