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US20120048501A1 - 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 Quality Download PDF

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Publication number
US20120048501A1
US20120048501A1 US12/223,410 US22341006A US2012048501A1 US 20120048501 A1 US20120048501 A1 US 20120048501A1 US 22341006 A US22341006 A US 22341006A US 2012048501 A1 US2012048501 A1 US 2012048501A1
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United States
Prior art keywords
casting
rolling
strand
oscillation
hot
Prior art date
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Abandoned
Application number
US12/223,410
Inventor
Christian Bilgen
Tilmann Böcher
Wolfgang Hennig
Jürgen Gaydoul
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SMS Siemag AG
Hermetik Hydraulik AB
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Individual
Priority date (The priority date 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 date listed.)
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Assigned to SMS DEMAG AKTIENGESELLSCHAFT, HERMETIK HYDRAULIK AB reassignment SMS DEMAG AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GAYDOUL, JURGEN, HENNIG, WOLFGANG, BILGEN, CHRISTIAN, BOCHER, TILMANN
Assigned to SMS SIEMAG AKTIENGESELLSCHAFT reassignment SMS SIEMAG AKTIENGESELLSCHAFT CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: SMS DEMAG AG
Publication of US20120048501A1 publication Critical patent/US20120048501A1/en
Abandoned legal-status Critical Current

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    • 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 concerns a method and a casting and rolling plant for producing hot-rolled metal strip, especially steel strip, of high surface quality from continuously cast slabs or thin slabs, which is subjected to a surface descaling, heated to rolling temperature, and finish rolled to thin strip gauges in a multiple-stand hot-strip rolling train, where the cast strand, after emerging from a strand guide, before entering a soaking furnace and/or after emerging from a soaking furnace and entering the hot-strip rolling train, is sprayed on one or both of its surfaces by several rotating nozzles, from which pressurized liquid is recurrently sprayed onto the same places on the surface with high impact pressure to remove scale and/or casting flux and to deep-clean the oscillation marks.
  • EP 0 586 823 B1 discloses a descaling device for casting and rolling trains.
  • a rotary arm with a nozzle is used, and retaining, protective, and recovery plates for the removed scale and the large amount of spray water are proposed.
  • EP 0 625 383 B1 describes a first descaling device, which can consist of a descaling sprayer of a conventional design, and a second descaling device with rotating nozzles.
  • EP 0 611 610 B1 describes rotary descaling with low water consumption, which is intended to produce a smaller temperature drop of the rolling stock.
  • the objective of the invention is to incorporate not only the use of the rotating descaler but also previously unconsidered parameters related to continuous casting.
  • this objective is achieved, in combination with the aforementioned prior art of this general type, by virtue of the fact that the hydraulically oscillated continuous casting mold is moved in several different oscillation curves and that the deep cleaning of the oscillation marks is carried out by setting the oscillation pattern that is determined to be optimal for each casting material.
  • the advantages are that, besides the actual descaling, the oscillation marks can now be largely cleaned, which is conducive to final rolling to ultrathin final rolling thicknesses of less than or equal to 1.2 mm. This means that, for example, for these dimensions, finish rolling in the austenite range of crystalline structure is possible.
  • the temperature losses of the cast strand are kept low by admission of pressure medium to the rotating nozzles under automatic control according to the temperature level of the cast strand or strand of rolling stock. This reduces the temperature losses of the slabs and thin slabs, which results in significantly better conditions for the hot rolling of the ultrathin final rolling thicknesses and in energy savings.
  • the associated casting and rolling plant especially a compact casting and rolling plant (CSP), which consists of continuous casting installation for liquid metals, especially liquid steel, whose continuous casting mold is connected with a hydraulic oscillation drive, which is followed in the direction of strand withdrawal by at least a strand guide, a soaking furnace, possibly a furnace transverse conveyor, a multiple-stand hot-strip finishing train, and a coiler, is further developed in such a way that a device with rotating nozzles is arranged between the strand guide and the soaking furnace or between a straightening driver and a shear and/or between the soaking furnace and the hot-strip finishing train and that a pressure medium is recurrently sprayed from these nozzles onto the same places on the surface with high impact pressure.
  • CSP compact casting and rolling plant
  • nozzles for pressure medium are installed on a rotor.
  • rotors with nozzles for pressure medium mounted on the periphery of the rotor are arranged in a row transverse to the direction of travel of the cast strand or strand of rolling stock. This makes it possible to replace some or all of the previously used spray bars of the descaling sprayer.
  • the invention provides for the use of the rotary descaling device in a hot-strip rolling train with seven or more finish rolling stands before entry into the first finish rolling stand.
  • FIG. 1 shows a compact casting and rolling plant in a perspective side view.
  • FIG. 2 shows a continuous casting mold, which has a hydraulic oscillation drive and is housed in a compact protective housing.
  • FIG. 3 shows several diagrams of different oscillatory movements of the continuous casting mold.
  • FIG. 4 shows an individual rotor with nozzles arranged on the periphery of the rotor.
  • a casting and rolling plant 1 ( FIG. 1 ), which is especially a CSP plant (compact steel plant), consists of a continuous casting installation 2 , in which liquid metal, especially liquid steel, is cast by means of a continuous casting mold 9 .
  • the continuous casting mold 9 is provided with a hydraulically oscillating drive 9 a ( FIG. 2 ).
  • the continuous casting mold 9 is followed in the direction of strand withdrawal 11 by a strand guide 3 , a soaking furnace 4 , optionally a furnace transverse conveyor 5 , a multiple-stand hot-strip finishing train 6 , and a coiler 8 for coiling the strip 7 .
  • a device 14 with rotating nozzles 15 ( FIG. 4 ) is arranged between the strand guide 3 and the soaking furnace 4 or between a straightening driver 12 and a shear 13 and/or between the soaking furnace 4 and the hot-strip finishing train 6 , and a pressure medium, usually a liquid, e.g., water, is recurrently sprayed from these nozzles onto the same places on the surface with high impact pressure.
  • a pressure medium usually a liquid, e.g., water
  • the hydraulically oscillating continuous casting mold 9 is moved in several different oscillation curves 16 , 17 , 18 , so that a different oscillation pattern 16 a, 17 a, 18 a is obtained for each selected casting material.
  • the oscillation curves 16 , 17 , 18 can be obtained by different magnitudes of mold oscillation, different casting speeds, different advancing mold speeds during the downward stroke (so-called negative strip), different curve forms (e.g., sinusoidal oscillations), and the like.
  • Much less pressurized liquid can be admitted into the rotating nozzles 15 as pressure medium than has previously been used in so-called descaling sprayers under conditions that are otherwise identical, i.e., the opposing processes are based on the same parameters.
  • the temperature losses of the cast strand 2 b are kept as low as possible by admission of pressure medium to the rotating nozzles 15 under automatic control according to the desired temperature level of the cast strand or strand of rolling stock 2 b.
  • nozzles 15 for the pressure medium are combined on a rotor 20 ( FIG. 4 ), and several rotors 20 have nozzles 15 for pressure medium mounted on the periphery 20 a of the rotor 20 and are arranged in a row of nozzles 21 transverse to the direction of travel of the cast strand or strand of rolling stock. Advantages also result from several such rows of nozzles 21 , where smaller nozzle jets can be used than in the case of only a single row of nozzles 21 .
  • the rotary descaling can be used on a hot-strip rolling train 6 with seven or more finish rolling stands 6 a before the entry of the rolling stock into the first finish rolling stand 6 a.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Laminated Bodies (AREA)

Abstract

Disclosed are a method and a casting/rolling plant for producing hot-rolled metallic, particularly steel, strips (7) having great surface quality from slabs or flat thin bars (2, 2 a) that are cast in a continuous casting process, descaling being performed based on a rotary descaling process. In order to take into account parameters which are not considered in prior art in addition to rotary descaling, the hydraulically oscillated permanent mold (9) travels along several different oscillation curves (16, 17, 18) while the oscillation marks are deep-cleaned by adjusting the oscillation pattern that is determined to be optimal for each casting material.

Description

  • The invention concerns a method and a casting and rolling plant for producing hot-rolled metal strip, especially steel strip, of high surface quality from continuously cast slabs or thin slabs, which is subjected to a surface descaling, heated to rolling temperature, and finish rolled to thin strip gauges in a multiple-stand hot-strip rolling train, where the cast strand, after emerging from a strand guide, before entering a soaking furnace and/or after emerging from a soaking furnace and entering the hot-strip rolling train, is sprayed on one or both of its surfaces by several rotating nozzles, from which pressurized liquid is recurrently sprayed onto the same places on the surface with high impact pressure to remove scale and/or casting flux and to deep-clean the oscillation marks.
  • A similar method is known from DE 43 28 303 C2. However, that method does not start from a continuously cast slab or thin slab cross section, and the rotary descaling is applied essentially to rolling stock and thus does not take into consideration the special production method of continuous casting. In addition, the depth of removal is not sufficient for taking care of not only invisible scale but also all production-related oscillation marks. Furthermore, the very large amount of water that is used causes undesirably strong cooling of the rolling stock.
  • EP 0 586 823 B1 discloses a descaling device for casting and rolling trains. In this device, a rotary arm with a nozzle is used, and retaining, protective, and recovery plates for the removed scale and the large amount of spray water are proposed.
  • EP 0 625 383 B1 describes a first descaling device, which can consist of a descaling sprayer of a conventional design, and a second descaling device with rotating nozzles.
  • EP 0 611 610 B1 describes rotary descaling with low water consumption, which is intended to produce a smaller temperature drop of the rolling stock.
  • The objective of the invention is to incorporate not only the use of the rotating descaler but also previously unconsidered parameters related to continuous casting.
  • In accordance with the invention, this objective is achieved, in combination with the aforementioned prior art of this general type, by virtue of the fact that the hydraulically oscillated continuous casting mold is moved in several different oscillation curves and that the deep cleaning of the oscillation marks is carried out by setting the oscillation pattern that is determined to be optimal for each casting material. The advantages are that, besides the actual descaling, the oscillation marks can now be largely cleaned, which is conducive to final rolling to ultrathin final rolling thicknesses of less than or equal to 1.2 mm. This means that, for example, for these dimensions, finish rolling in the austenite range of crystalline structure is possible.
  • In a modification of the invention, it is proposed that much less pressurized liquid be admitted into the rotating nozzles as pressure medium than has previously been used in so-called descaling sprayers, with parameters of the casting or rolling process that are otherwise the same. This makes it possible to use less pressure medium, e.g., water, while achieving the same or better descaling results.
  • In accordance with other features of the invention, the temperature losses of the cast strand are kept low by admission of pressure medium to the rotating nozzles under automatic control according to the temperature level of the cast strand or strand of rolling stock. This reduces the temperature losses of the slabs and thin slabs, which results in significantly better conditions for the hot rolling of the ultrathin final rolling thicknesses and in energy savings.
  • The associated casting and rolling plant, especially a compact casting and rolling plant (CSP), which consists of continuous casting installation for liquid metals, especially liquid steel, whose continuous casting mold is connected with a hydraulic oscillation drive, which is followed in the direction of strand withdrawal by at least a strand guide, a soaking furnace, possibly a furnace transverse conveyor, a multiple-stand hot-strip finishing train, and a coiler, is further developed in such a way that a device with rotating nozzles is arranged between the strand guide and the soaking furnace or between a straightening driver and a shear and/or between the soaking furnace and the hot-strip finishing train and that a pressure medium is recurrently sprayed from these nozzles onto the same places on the surface with high impact pressure. This makes it possible to produce the effects of the process that were described earlier.
  • As is well known in other connections, several nozzles for pressure medium are installed on a rotor. However, it is also advantageous to provide nozzles of this type for media other than water at standard temperature.
  • In another embodiment, several rotors with nozzles for pressure medium mounted on the periphery of the rotor are arranged in a row transverse to the direction of travel of the cast strand or strand of rolling stock. This makes it possible to replace some or all of the previously used spray bars of the descaling sprayer.
  • Finally, the invention provides for the use of the rotary descaling device in a hot-strip rolling train with seven or more finish rolling stands before entry into the first finish rolling stand.
  • Specific embodiments of the features of the invention are illustrated in the drawings and explained in greater detail below.
  • FIG. 1 shows a compact casting and rolling plant in a perspective side view.
  • FIG. 2 shows a continuous casting mold, which has a hydraulic oscillation drive and is housed in a compact protective housing.
  • FIG. 3 shows several diagrams of different oscillatory movements of the continuous casting mold.
  • FIG. 4 shows an individual rotor with nozzles arranged on the periphery of the rotor.
    •
  • A casting and rolling plant 1 (FIG. 1), which is especially a CSP plant (compact steel plant), consists of a continuous casting installation 2, in which liquid metal, especially liquid steel, is cast by means of a continuous casting mold 9. The continuous casting mold 9 is provided with a hydraulically oscillating drive 9 a (FIG. 2). The continuous casting mold 9 is followed in the direction of strand withdrawal 11 by a strand guide 3, a soaking furnace 4, optionally a furnace transverse conveyor 5, a multiple-stand hot-strip finishing train 6, and a coiler 8 for coiling the strip 7.
  • A device 14 with rotating nozzles 15 (FIG. 4) is arranged between the strand guide 3 and the soaking furnace 4 or between a straightening driver 12 and a shear 13 and/or between the soaking furnace 4 and the hot-strip finishing train 6, and a pressure medium, usually a liquid, e.g., water, is recurrently sprayed from these nozzles onto the same places on the surface with high impact pressure.
  • According to FIG. 3, the hydraulically oscillating continuous casting mold 9 is moved in several different oscillation curves 16, 17, 18, so that a different oscillation pattern 16 a, 17 a, 18 a is obtained for each selected casting material. The oscillation curves 16, 17, 18 can be obtained by different magnitudes of mold oscillation, different casting speeds, different advancing mold speeds during the downward stroke (so-called negative strip), different curve forms (e.g., sinusoidal oscillations), and the like. Much less pressurized liquid can be admitted into the rotating nozzles 15 as pressure medium than has previously been used in so-called descaling sprayers under conditions that are otherwise identical, i.e., the opposing processes are based on the same parameters. At the same time, the temperature losses of the cast strand 2 b are kept as low as possible by admission of pressure medium to the rotating nozzles 15 under automatic control according to the desired temperature level of the cast strand or strand of rolling stock 2 b.
  • Several nozzles 15 for the pressure medium are combined on a rotor 20 (FIG. 4), and several rotors 20 have nozzles 15 for pressure medium mounted on the periphery 20 a of the rotor 20 and are arranged in a row of nozzles 21 transverse to the direction of travel of the cast strand or strand of rolling stock. Advantages also result from several such rows of nozzles 21, where smaller nozzle jets can be used than in the case of only a single row of nozzles 21.
  • The rotary descaling can be used on a hot-strip rolling train 6 with seven or more finish rolling stands 6 a before the entry of the rolling stock into the first finish rolling stand 6 a.
    • LIST OF REFERENCE NUMBERS
  • 1 CSP plant (compact steel plant)
  • 2 slab profile
  • 2 a thin slab profile
  • 2 b cast strand
  • 2 c strand surface
  • 3 strand guide
  • 4 soaking furnace
  • 5 furnace transverse conveyor
  • 6 hot-strip rolling train
  • 6 a finish rolling stand
  • 7 strip of steel
  • 8 coiler
  • 9 hydraulically oscillated continuous casting mold
  • 9 a oscillation drive
  • 10 oscillation curve
  • 11 direction of strand withdrawal
  • 12 straightening driver
  • 13 shear
  • 14 device with rotating nozzles
  • 15 rotating nozzle
  • 16 oscillation curve
  • 16 a pattern of the oscillation curve
  • 17 oscillation curve
  • 17 a pattern of the oscillation curve
  • 18 oscillation curve
  • 18 a pattern of the oscillation curve
  • 19 pressurized liquid
  • 20 rotor
  • 20 a rotor periphery
  • 21 row of rotors

Claims (7)

1. A method for producing hot-rolled metal strip, especially steel strip (7), of high surface quality from continuously cast slabs or thin slabs (2, 2 a) cast with the aid of a hydraulically oscillating continuous casting mold (9), which is subjected to a descaling of the strand surface (2 c), heated to rolling temperature, and finish rolled to thin strip gauges in a multiple-stand hot-strip rolling train (6), where the cast strand (2 a), after emerging from a strand guide (3), before entering a soaking furnace (4) and/or after emerging from a soaking furnace (4) and entering the hot-strip rolling train (6), is sprayed on one or both of its surfaces (2 c) by several rotating nozzles (15), from which pressurized liquid (19) is recurrently sprayed onto the same places on the surface with high impact pressure to remove scale and/or casting flux and to deep-clean the oscillation marks, wherein the hydraulically oscillated continuous casting mold (9) is moved in several different oscillation curves (16, 17, 18), where the oscillation curves (16, 17, 18) are obtained by different magnitudes of mold oscillation, different casting speeds, different advancing mold speeds during the downward stroke, and different curve forms, and where the deep cleaning of the oscillation marks is carried out by setting the oscillation pattern (16 a, 17 a, 18 a) determined for each casting material.
2. A method in accordance with claim 1, wherein much less pressurized liquid (19) is admitted into the rotating nozzles (15) as pressure medium than has previously been used in so-called descaling sprayers, with parameters of the casting or rolling process that are otherwise the same.
3. A method in accordance with claim 1, wherein the temperature losses of the cast strand (2 b) are kept low by admission of pressure medium to the rotating nozzles (15) under automatic control according to the temperature level of the cast strand or strand of rolling stock (2 b).
4. A casting and rolling plant (1), especially a compact casting and rolling plant (CSP), which consists of a continuous casting installation (2) for liquid metals, especially liquid steel, whose continuous casting mold (9) is connected with a hydraulic oscillation drive (9 a), which is followed in the direction of strand withdrawal (11) by at least a strand guide (3), a soaking furnace (4), possibly a furnace transverse conveyor (5), a multiple-stand hot-strip finishing train (6), and a coiler (8), wherein a device (14) with rotating nozzles (15) is arranged between the strand guide (3) and the soaking furnace (4) or between a straightening driver (12) and a shear (13) and/or between the soaking furnace (4) and the hot-strip finishing train (6), before the first rolls, and where a pressure medium is recurrently sprayed from these nozzles (15) onto the same places on the surface with high impact pressure.
5. A casting and rolling plant in accordance with claim 4, wherein several nozzles (15) for pressure medium are installed on a rotor (20).
6. A casting and rolling plant in accordance with claim 4, wherein several rotors (20) with nozzles (15) for pressure medium mounted on the periphery (20 a) of the rotor are arranged in a row transverse to the direction of travel of the cast strand or strand of rolling stock (2 b).
7. A casting and rolling plant in accordance with claim 4, comprising the use of the rotary descaling device in a hot-strip rolling train (6) with seven or more finish rolling stands (6 a) before entry into the first finish rolling stand (6 a).
US12/223,410 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 Abandoned US20120048501A1 (en)

Applications Claiming Priority (3)

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
DE102006004688.9 2006-02-02
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

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US20120048501A1 true US20120048501A1 (en) 2012-03-01

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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)

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US11103907B2 (en) 2016-03-18 2021-08-31 Sms Group Gmbh Device and method for descaling a workpiece in motion
EP4186615A1 (en) * 2021-11-24 2023-05-31 SMS Group GmbH Method for producing a cast strand

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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
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ES2681486T3 (en) * 2015-12-23 2018-09-13 Hammelmann GmbH Device and method for cleaning a body with a surface layer to be removed
US20210331222A1 (en) * 2017-01-24 2021-10-28 Primetals Technologies Austria GmbH Casting-rolling installation and method for treating a workpiece by means of such an 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 A red hot charging method matched with the optimal quality of the slab

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AU2006337463A1 (en) 2007-08-09
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AU2006337463B2 (en) 2012-04-05
UA95100C2 (en) 2011-07-11
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JP2009525182A (en) 2009-07-09
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AR059290A1 (en) 2008-03-26
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ES2389860T3 (en) 2012-11-02

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