EP1981660A1 - Method and casting/rolling plant for the production of hot-rolled metallic strips, especially steel strips, having great surface quality - Google Patents
Method and casting/rolling plant for the production of hot-rolled metallic strips, especially steel strips, having great surface qualityInfo
- Publication number
- EP1981660A1 EP1981660A1 EP06841130A EP06841130A EP1981660A1 EP 1981660 A1 EP1981660 A1 EP 1981660A1 EP 06841130 A EP06841130 A EP 06841130A EP 06841130 A EP06841130 A EP 06841130A EP 1981660 A1 EP1981660 A1 EP 1981660A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casting
- rolling
- oscillation
- strand
- hot
- 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
- 238000005096 rolling process Methods 0.000 title claims abstract description 39
- 238000005266 casting Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 9
- 239000010959 steel Substances 0.000 title claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 230000010355 oscillation Effects 0.000 claims abstract description 27
- 238000009749 continuous casting Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
-
- 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
- B22D11/053—Means for oscillating the moulds
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/22—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for rolling metal immediately subsequent to continuous casting, i.e. in-line rolling of steel
Definitions
- the invention relates to a method and a casting / rolling plant for producing hot-rolled metal, in particular high-surface-area steel strip from slab or flat cast thin-cast slabs cast in the continuous casting process, which descaled on its strand surface. pe.atur heated and finished in a multi-stand hot strip rolling mill with low strip thicknesses, the cast strand after emerging from a strand guide, before entering a heat balance furnace and / or after exiting a heat equalization furnace and entering the hot 0, strip rolling mill on one or both strand surfaces by a plurality of rotating nozzles, from which pressure liquid injected repeatedly to a respective same surface location with high loading pressure, freed of scale and / or casting powder and the oscillation marks are deeply cleaned.
- a descaling device for casting and rolling mills is known.
- a rotatable arm is used with nozzle and retention, protection and recovery plates for the removed scale and the large amount of spray water proposed.
- a first descaling device is known, which may consist of a scale washer of conventional design and a second descaling device with rotating nozzles.
- the invention has for its object, in addition to the application of the rotating Entzunderns previously included not included parameters that are given by the continuous casting.
- the stated object is achieved according to the invention in combination with the genus specified in the introduction by driving the hydraulically oscillated continuous casting mold in several different oscillation curves and by performing the deep cleaning of the oscillation marks by setting the oscillation profile determined as optimal for each casting material.
- the advantages are that in addition to the actual descaling now the oscillation marks can be cleaned very largely and thus a finish rolling on ultrathin Endwalzdicken equal / smaller 1, 2 mm is favored. This means that, for example, for these dimensions, finish rolling in the austenite region of the crystal structure is possible.
- the pressurization of the rotating nozzles with printing fluid by significantly less pressure medium than hitherto has been used in so-called.
- Tinder scrubbers with the same parameters of the casting or rolling process.
- printing medium such as, for example, water
- the associated casting-rolling plant in particular a compact-casting-rolling plant (CSP), consisting of a continuous casting for liquid metals, in particular for liquid steel materials
- the continuous casting mold is connected to a hydraulic oscillation drive, in the strand discharge at least a strand guide, a temperature compensation furnace, possibly a furnace ferry and a multi-stand hot strip finishing train and a reel follow, is further developed such that between the strand guide and the temperature compensation furnace or between a straightening and scissors and / or between the temperature compensation furnace and de warming belt finishing mill a device is arranged with rotating nozzles, from which a pressure medium with high applied pressure is repeatedly directed to a respective same surface location.
- a plurality of nozzles for pressure medium are arranged on a rotor.
- Another embodiment provides that a plurality of rotors are arranged with arranged on the rotor circumference nozzles for pressure medium in a row transverse to the course of the casting or rolling train.
- the previously used Abspritzbalken the scale scrubber can be replaced individually or completely.
- the use of rotor descaling on a hot strip rolling mill having seven or more finishing stands is provided prior to entry into the first finish rolling mill.
- Fig. 1 is a casting-rolling compact plant in a perspective side view
- Fig. 2 is located in a compact protective housing continuous casting mold with hydraulic oscillation drive
- FIG. 3 shows several diagrams of different oscillatory movements of the continuous casting mold and FIG. 4 shows a single rotor with nozzles arranged on the rotor circumference.
- a casting / rolling plant 1 which in particular represents a CSP plant (Compact Steel Plant), consists of a continuous casting apparatus 2, in which liquid metal, in particular liquid steel material, is cast by means of a continuous casting mold 9.
- the continuous casting mold 9 is provided with a hydraulically oscillating drive 9a (FIG. 2).
- On the continuous casting mold 9 follows in strand withdrawal direction 11, a strand guide 3, a temperature compensation furnace 4, if provided, a furnace ferry 5 and a multi-stand hot strip finishing train 6 and behind a reel 8 for winding the tape. 7
- a device 14 with rotating nozzles 15 (FIG. 4) is arranged, from which pressure media (usually liquid, such as, for example, water) is repeatedly directed to a respective same surface area with a high pressure.
- pressure media usually liquid, such as, for example, water
- FIG. 3 the hydraulically oscillating continuous casting mold 9 is moved in a plurality of different oscillation curves 16, 17, 18, so that a respectively different oscillation profile 16a, 17a, 18a is produced for the respectively selected casting material.
- the oscillation curves 16, 17, 18 can be due to different Kokillenhübe, different casting speed, unleading leading mold speeds on the downstroke (so-called negative strip) different waveforms (eg, sinusoids) u. Like. Be obtained.
- the pressurization of the rotating nozzles 15 with hydraulic fluid 19 can be done with significantly less pressure medium (pressure medium) than has been used in so-called. Zundericaschern, where equal ratios, ie parameters of the opposing processes are based.
- pressurizing the rotary nozzles 15 with pressure medium keeps the temperature losses of the casting strand 2b as low as possible.
- a plurality of nozzles 15 for the printing medium are combined on a rotor 20 (FIG. 4) and a plurality of rotors 20 have nozzles 15 for printing medium mounted on the rotor periphery 20a and are arranged in a row of nozzles 21 transversely to the course of the casting or rolling train 2b arranged. Advantages also result from a plurality of such rows of nozzles 21, smaller nozzle jets than can be used in a single row of nozzles 21.
- the rotor descaling may be applied to a hot strip rolling mill 6 having seven or more finish rolling stands 6a prior to the entry of the rolled strip into the first finish rolling stand 6a.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Continuous Casting (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006004688A DE102006004688A1 (en) | 2006-02-02 | 2006-02-02 | Method and casting-rolling plant for producing hot-rolled metal - in particular high-quality steel-material strip |
PCT/EP2006/012459 WO2007087886A1 (en) | 2006-02-02 | 2006-12-22 | Method and casting/rolling plant for the production of hot-rolled metallic strips, especially steel strips, having great surface quality |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1981660A1 true EP1981660A1 (en) | 2008-10-22 |
EP1981660B1 EP1981660B1 (en) | 2012-07-04 |
Family
ID=37744383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06841130A Not-in-force EP1981660B1 (en) | 2006-02-02 | 2006-12-22 | Method for the production of hot-rolled metallic strips, especially steel strips, having great surface quality |
Country Status (18)
Country | Link |
---|---|
US (1) | US20120048501A1 (en) |
EP (1) | EP1981660B1 (en) |
JP (1) | JP2009525182A (en) |
KR (1) | KR20080106891A (en) |
CN (1) | CN101410198B (en) |
AR (1) | AR059290A1 (en) |
AU (1) | AU2006337463B2 (en) |
BR (1) | BRPI0621300A2 (en) |
CA (1) | CA2640751C (en) |
DE (1) | DE102006004688A1 (en) |
EG (1) | EG25282A (en) |
ES (1) | ES2389860T3 (en) |
MX (1) | MX2008009949A (en) |
RU (1) | RU2414978C2 (en) |
TW (1) | TWI381894B (en) |
UA (1) | UA95100C2 (en) |
WO (1) | WO2007087886A1 (en) |
ZA (1) | ZA200805313B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT507663B1 (en) * | 2009-04-09 | 2010-07-15 | Siemens Vai Metals Tech Gmbh | METHOD AND DEVICE FOR PREPARING HOT ROLLING MATERIAL |
CN101850409B (en) * | 2010-06-08 | 2012-02-29 | 攀钢集团钢铁钒钛股份有限公司 | Continuous casting method |
CN106180218A (en) * | 2014-12-05 | 2016-12-07 | 财团法人金属工业研究发展中心 | Device and method for removing rust and retaining water of hot-rolled steel billet |
DE102015206393A1 (en) * | 2015-04-10 | 2016-10-13 | Sms Group Gmbh | Device for cleaning the surface of an object |
ES2681486T3 (en) * | 2015-12-23 | 2018-09-13 | Hammelmann GmbH | Device and method for cleaning a body with a surface layer to be removed |
DE102016217560A1 (en) | 2016-03-18 | 2017-09-21 | Sms Group Gmbh | Device and method for descaling a workpiece |
RU2748536C2 (en) * | 2017-01-24 | 2021-05-26 | Прайметалз Текнолоджиз Аустриа ГмбХ | Casting and rolling plant and method for processing billets through such installation |
KR102170939B1 (en) * | 2018-11-27 | 2020-10-29 | 주식회사 포스코 | Rolling material processing equipment and processing method |
CN110227719A (en) * | 2019-07-04 | 2019-09-13 | 攀钢集团攀枝花钢钒有限公司 | For low alloy hot rolling surface of steel plate peeling defects controlling method |
CN111570525A (en) * | 2020-05-08 | 2020-08-25 | 马鞍山钢铁股份有限公司 | Hot-charging method optimally matched with casting blank quality |
DE102021213238A1 (en) * | 2021-11-24 | 2023-05-25 | Sms Group Gmbh | Process for producing a cast strand |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59220262A (en) * | 1983-05-31 | 1984-12-11 | Nisshin Steel Co Ltd | Continuous casting method of martensitic stainless steel |
ES2108170T3 (en) | 1992-07-31 | 1997-12-16 | Danieli Off Mecc | DECHARGING DEVICE USING WATER. |
DE4328303C2 (en) | 1992-12-23 | 1997-02-13 | Juergen Gaydoul | Device for descaling hot rolled material |
JP2845073B2 (en) * | 1993-01-29 | 1999-01-13 | 株式会社日立製作所 | Hot rolling equipment and continuous casting hot rolling equipment |
AT398396B (en) | 1993-02-16 | 1994-11-25 | Voest Alpine Ind Anlagen | METHOD FOR PRODUCING A TAPE, PRE-STRIP OR A LAM |
ES2112440T3 (en) | 1993-05-17 | 1998-04-01 | Danieli Off Mecc | LINE TO PRODUCE BAND AND / OR IRON. |
US5697241A (en) * | 1993-08-23 | 1997-12-16 | Voest-Alpine Industrieanlagenbau Gmbh | Rolling arrangement |
JP3307771B2 (en) * | 1993-08-23 | 2002-07-24 | ハンス‐ユルゲン、ガイドール | Means for descaling hot rolled steel sheets |
DE4341719C2 (en) * | 1993-12-03 | 2001-02-01 | Mannesmann Ag | Device for the continuous casting of steel |
IT1267916B1 (en) * | 1994-03-31 | 1997-02-18 | Danieli Off Mecc | PROCEDURE FOR THE PRODUCTION OF BELT STARTING FROM THIN SLABS AND RELATIVE PLANT |
JP3174457B2 (en) * | 1994-05-17 | 2001-06-11 | 株式会社日立製作所 | Continuous casting direct hot rolling equipment and rolling method |
AT409227B (en) * | 1998-08-17 | 2002-06-25 | Voest Alpine Ind Anlagen | METHOD AND SYSTEM FOR THE PRODUCTION OF HOT-ROLLED STEEL STRIP FROM A STEEL MELT |
DE10143868A1 (en) * | 2001-09-07 | 2003-03-27 | Sms Demag Ag | Device for removing loose cinder from the surface of a thin slab of a mini mill has a spray unit arranged before a temperature compensation oven and connected to a water supply |
-
2006
- 2006-02-02 DE DE102006004688A patent/DE102006004688A1/en not_active Withdrawn
- 2006-12-22 AU AU2006337463A patent/AU2006337463B2/en not_active Ceased
- 2006-12-22 BR BRPI0621300-6A patent/BRPI0621300A2/en not_active IP Right Cessation
- 2006-12-22 ES ES06841130T patent/ES2389860T3/en active Active
- 2006-12-22 CN CN2006800521182A patent/CN101410198B/en not_active Expired - Fee Related
- 2006-12-22 US US12/223,410 patent/US20120048501A1/en not_active Abandoned
- 2006-12-22 UA UAA200810827A patent/UA95100C2/en unknown
- 2006-12-22 JP JP2008552695A patent/JP2009525182A/en active Pending
- 2006-12-22 RU RU2008135453/02A patent/RU2414978C2/en not_active IP Right Cessation
- 2006-12-22 WO PCT/EP2006/012459 patent/WO2007087886A1/en active Application Filing
- 2006-12-22 KR KR1020087018826A patent/KR20080106891A/en not_active Application Discontinuation
- 2006-12-22 MX MX2008009949A patent/MX2008009949A/en active IP Right Grant
- 2006-12-22 EP EP06841130A patent/EP1981660B1/en not_active Not-in-force
- 2006-12-22 CA CA2640751A patent/CA2640751C/en not_active Expired - Fee Related
-
2007
- 2007-01-12 TW TW096101179A patent/TWI381894B/en not_active IP Right Cessation
- 2007-02-01 AR ARP070100438A patent/AR059290A1/en active IP Right Grant
-
2008
- 2008-06-19 ZA ZA200805313A patent/ZA200805313B/en unknown
- 2008-08-03 EG EG2008081309A patent/EG25282A/en active
Non-Patent Citations (1)
Title |
---|
See references of WO2007087886A1 * |
Also Published As
Publication number | Publication date |
---|---|
KR20080106891A (en) | 2008-12-09 |
EP1981660B1 (en) | 2012-07-04 |
JP2009525182A (en) | 2009-07-09 |
CA2640751A1 (en) | 2007-08-09 |
RU2008135453A (en) | 2010-03-10 |
MX2008009949A (en) | 2009-01-16 |
TWI381894B (en) | 2013-01-11 |
CN101410198B (en) | 2011-08-10 |
ES2389860T3 (en) | 2012-11-02 |
CA2640751C (en) | 2013-03-12 |
EG25282A (en) | 2011-12-05 |
US20120048501A1 (en) | 2012-03-01 |
AU2006337463A2 (en) | 2008-11-06 |
AU2006337463B2 (en) | 2012-04-05 |
AR059290A1 (en) | 2008-03-26 |
ZA200805313B (en) | 2009-09-30 |
BRPI0621300A2 (en) | 2011-07-05 |
CN101410198A (en) | 2009-04-15 |
WO2007087886A1 (en) | 2007-08-09 |
TW200732060A (en) | 2007-09-01 |
DE102006004688A1 (en) | 2007-08-16 |
RU2414978C2 (en) | 2011-03-27 |
UA95100C2 (en) | 2011-07-11 |
AU2006337463A1 (en) | 2007-08-09 |
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