EP3074151B1 - Verfahren und vorrichtung zum entzundern einer metallischen oberfläche sowie anlage zum herstellen von metallischen halbzeugen - Google Patents

Verfahren und vorrichtung zum entzundern einer metallischen oberfläche sowie anlage zum herstellen von metallischen halbzeugen Download PDF

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Publication number
EP3074151B1
EP3074151B1 EP14805888.6A EP14805888A EP3074151B1 EP 3074151 B1 EP3074151 B1 EP 3074151B1 EP 14805888 A EP14805888 A EP 14805888A EP 3074151 B1 EP3074151 B1 EP 3074151B1
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EP
European Patent Office
Prior art keywords
head parts
nozzle head
nozzle
metallic
another
Prior art date
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Active
Application number
EP14805888.6A
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German (de)
English (en)
French (fr)
Other versions
EP3074151A1 (de
Inventor
Markus Cramer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Group GmbH
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SMS Group GmbH
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    • 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
    • B21B1/22—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 plates, strips, bands or sheets of indefinite length
    • B21B1/24—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • 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
    • B21B45/06—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 of strip material
    • 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

Definitions

  • the invention relates to a method for descaling a metallic surface of a metallic semifinished product in which the metallic semifinished product is guided in the direction of transport transversely adjacent to this transport direction juxtaposed and rotating about axes of rotation nozzle head parts and wherein directed by means arranged on these rotating nozzle head parts nozzle elements on the metallic surface and high-pressure fluid jets are generated, which are also blasted at a constriction between two immediately adjacent nozzle head parts to the metallic surface.
  • the invention also relates to an apparatus for carrying out a method for descaling a metallic surface of a metallic semifinished product with a nozzle device, on which the metallic semi-finished product can be guided in the transport direction, wherein the nozzle means a plurality of rotating about axes of rotation nozzle head parts with nozzle elements for generating on the metallic surface directed and having high pressure fluid jets, wherein the nozzle head parts are arranged side by side so that the fluid jets generated by the nozzle elements are also blasted at a constriction between two immediately adjacent nozzle head parts to the metallic surface.
  • the invention further relates to a system for producing metallic semi-finished products, in particular of metallic strip material, with a device for descaling the metallic surfaces of the metallic semi-finished products.
  • a device for the descaling of hot rolled goods which are passed by this device.
  • the surfaces of the respective rolling stock are then cleaned or descaled by irradiation on both sides by means of high-pressure water.
  • the descaling device proposed therein has nozzle heads arranged in juxtaposition in a row, which are each rotationally driven by a motor about an axis of rotation.
  • the nozzle heads have at least one eccentrically arranged nozzle, by means of which high-pressure water jets can be generated and blasted onto the surfaces.
  • the rotationally driven nozzle heads are intended to achieve a better surface quality of the blasted surfaces of the rolling stock.
  • JP H11 216513 A discloses in which equipped with high-pressure water nozzles rotary heads not only in the width of the metallic semi-finished next to each other but additionally offset in the conveying direction of the metallic semi-finished to each other to achieve a reliable descaling over the entire width of the metallic semifinished product.
  • this descaling device builds very deep in the conveying direction.
  • a surface to be cleaned such as a floor or the like, mobile cleaning machine with rotating nozzle heads, each comprising a rotor arm, wherein each of the rotor arms has two or more high-pressure nozzles whose liquid jets flow together at a point in front of the surface to be cleaned to achieve an improved cleaning effect.
  • the rotor arms are arranged and operated in such a way that they engage in each other during the rotation, but do not collide with each other.
  • the object of the invention is to improve the cleaning effects with regard to descaling of metallic surfaces of corresponding metallic semi-finished products to generic descaling devices.
  • the object of the invention is achieved by a method for descaling a metallic surface of a metallic semifinished product in which the metallic semifinished product is guided past transversely to this transport direction juxtaposed and rotating about rotational axes nozzle head parts and in which by means arranged on these rotating nozzle head parts nozzle elements the metallic surface directed and high-pressure fluid jets are generated, which are also blasted at a bottleneck between two immediately adjacent nozzle head parts to the metallic surface, wherein the method is characterized in that the nozzle head parts with such a preset angular position with respect to a rotation angle of the respective Rotate rotation axis of the nozzle head parts synchronously to each other that the fluid jets generated by means of the nozzle elements always contact each other over the metalli blasted surface.
  • Synchronous means in the context of the invention that once adjusted between the nozzle head parts corresponding angular positions during the nozzle head part rotations to each other not inadvertently.
  • the nozzle head parts of the nozzle device synchronously rotate with each other once set angular positions in which the fluid jets of two closest nozzle elements, in particular two directly adjacent nozzle head parts can be blasted without contact past each other on the metallic surface.
  • the rotational movements of the individual nozzle head parts or their drive means are synchronized in the correct position for this purpose, so that the individual nozzle head parts always rotate in alignment with one another as required.
  • the method according to the invention thus avoids that, for example, with a corresponding rotor descaling, individual fluid jets mutually adversely affect each other before hitting the metallic surface and thereby mutually weaken or even extinguish them completely, as may hitherto be the case in the prior art. Such effects occur especially at bottlenecks between two directly adjacent nozzle head parts, when nozzle elements are guided past this constriction at the same time.
  • the most varied media can be used as fluid jets, as long as it is suitable for descaling or otherwise cleaning the metallic surface.
  • high pressure water jets are preferably used as fluid jets.
  • the fluid jets may be generated as a cone beam geometry, elliptical beam geometry, fan beam geometry, or the like.
  • the metallic surface is, for example, a hot-rolled surface which is to be freed of a scale layer. It is understood that by means of the present invention, other undesired substances adhering to it can also be removed from the metallic surface.
  • the metallic semifinished product is, for example, forged or rolled metallic strip material, such as slabs, thin slabs, hot strip, pre-strip or the like.
  • the nozzle head parts of the nozzle device which are arranged next to one another in a row, are in each case mounted rotatably about their own axis of rotation. This axis of rotation is preferably perpendicular with respect to the conveyed in the transport direction metallic semi-finished.
  • At least one nozzle element is arranged at each of the nozzle head parts, which has at least one outlet opening from which a liquid jet emerges under high pressure.
  • an outlet opening can represent the nozzle element in the sense of the invention.
  • bottleneck describes in the context of the invention, an area with the smallest distance between two directly opposite nozzle head parts, in which nozzle elements of the two nozzle head parts are opposite, so come closest if these two nozzle head parts rotate corresponding to their respective axis of rotation.
  • This bottleneck is located on a connecting line connecting all rotational axes.
  • the bottleneck describes an area at which two nozzle head parts are arranged so close to one another that the fluid jets generated by two nozzle elements which have been temporarily turned into there before the impact on the metallic surface overlap or at least can affect, whereby they hinder each other adversely.
  • the angular positions and the rotational speeds of the individual nozzle head parts are adjusted to each other such that the nozzle elements of the immediately adjacent nozzle head parts always pass alternately through the constriction, so that the fluid jets generated by means of the nozzle elements are always radiated contactlessly past one another onto the metallic surface.
  • an advantageous variant of the method also provides that the nozzle elements of two directly adjacent nozzle head parts always pass through the bottleneck in such a way that the fluid jets generated by means of the nozzle elements are always radiated contactlessly past one another onto the metallic surface. alternately happen that the fluid jets generated by means of the nozzle elements are always radiated contactlessly past each other on the metallic surface.
  • time offset must be chosen to be large enough to achieve the desired effects.
  • the object of the invention is also achieved by a device for carrying out a method for Entzundem a metallic surface of a metallic semifinished product according to the subject of claim 7.
  • a device for carrying out a method for Entzundem a metallic surface of a metallic semifinished product according to the subject of claim 7. This is characterized in that the nozzle head parts are mechanically and / or electronically interacting with each other such that the individual nozzle head parts of the nozzle device are always arranged aligned with preset angular positions to each other.
  • the present method can advantageously be carried out with the present device.
  • a variant embodiment provides that the nozzle elements of two directly adjacent nozzle head parts are always aligned with respect to their angular positions in such a way that the fluid jets generated by means of the nozzle elements can always be radiated contactlessly past one another onto the metallic surface.
  • the individual angular positions of the nozzle head parts are rotated in such a rotated by a rotation angle offset from each other, that the nozzle elements of two immediately adjacent nozzle head parts always time-delayed run into the region of the bottleneck, so that at the bottleneck only one nozzle element and thus always only one fluid jet is temporarily positioned ,
  • the device has a drive device for driving the nozzle head parts, by means of which the nozzle head parts can be driven synchronized in terms of their rotational properties.
  • Retention properties is meant specifically the angular acceleration and the angular velocity of the individual nozzle head parts.
  • each of the nozzle head parts can be assigned as drive means a separate drive motor.
  • the drive device comprises as drive means only a drive motor, which is operatively connected via a corresponding gear unit with the nozzle head parts.
  • Angular positions are more than 5 ° or more than 15 °, preferably offset by 45 ° to each other.
  • the object of the invention is further from a plant for producing metallic semi-finished products, in particular of metallic strip material, with a Device for descaling the metallic surfaces of the metallic semifinished product, wherein the system is characterized by a device for descaling according to one of the features described herein.
  • the present inventive device 1 for descaling metallic surfaces 2 and 3 of a metallic semi-finished product 4 is according to the in the FIG. 1 embodiment shown in a system 5 for producing the metallic semifinished product 4 integrated.
  • the plant 5 in this case comprises a casting machine 6 with a mold 7 and a pouring arc 8, wherein the emerging from the pouring arc 8 metallic semifinished product 4 in the form of a metallic strip 9 is then conveyed through different roughing stands 10 and stands 11 of a production line 12 in the transport direction 13.
  • an induction furnace 14 is provided, by means of which the metallic strip 9 is raised to a higher temperature after a rolling operation in the roughing stands 10.
  • the descaling of the surfaces 2 and 3 takes place behind the induction furnace 14 through the descaling apparatus 1, the apparatus 1 comprising a scale scrubber 15.
  • the device 1 is characterized in particular by a nozzle device 16 which, both above the metallic strip 9 and below the metallic strip 9, respectively has an arrangement of seven nozzle head parts 18 arranged side by side in a row 17 (cf. FIG. 2 ) consists.
  • the row 17 in this case runs in the width direction 19 of the metallic strip 9 transversely to the transport direction 13.
  • Each of the existing nozzle head parts 18 is mounted in the nozzle device 16 in such a way that it rotates about its own rotation axis 20 (only numbered as an example). Furthermore, each of the nozzle head parts 18 has four nozzle elements 22, 23, 24 and 25 arranged at 90 ° to one another on the outer edge 21 of the nozzle head parts 18.
  • the nozzle elements 22 to 25 have at least one outlet opening (not shown), from which a high-pressure fluid jet (not shown here) can emerge, wherein the nozzle elements 22 to 25 are arranged such that the fluid jets generated by them on the respective surface. 2 or 3 are blasted. All nozzle elements 22 to 25 rotate in the same direction according to the direction of rotation 26 about their respective axis of rotation 20.
  • the axes of rotation 20 are in this case on a common fictitious connecting line 27th
  • the nozzle head parts 18 are arranged next to one another in such a way that the fluid jets generated by the nozzle elements 22, 23, 24 and 25 are located at a respective constriction 30 two immediately adjacent nozzle head parts 18 are always contactless past each other on the metallic surface 2, 3 are radiant.
  • the individual rotating nozzle head parts 18 with respect to their respective angular position 31 and 32 are arranged aligned with each other such that the nozzle elements 22, 23, 24, 25 of two directly adjacent nozzle head parts 18 always alternately pass through the respective constriction 30.
  • first of the nozzle head parts 18 has a first angular position 31 with an angle of rotation 33 (only exemplified) of 45 ° with respect to the imaginary connecting line 20 and further of the nozzle head part 18, which are directly adjacent, another angular position 32 with a further angle of rotation (not drawn) from 0 ° with respect to the imaginary connecting line 20, as exemplified in the FIG. 2 shown snapshot is shown.
  • the rotational movements of the individual nozzle head parts (18) or their drive means are preferably always synchronized in the correct position, so that the individual nozzle head parts (18) always rotate in alignment with one another as required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Nozzles (AREA)
  • Metal Rolling (AREA)
EP14805888.6A 2013-11-29 2014-11-28 Verfahren und vorrichtung zum entzundern einer metallischen oberfläche sowie anlage zum herstellen von metallischen halbzeugen Active EP3074151B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013224506.8A DE102013224506A1 (de) 2013-11-29 2013-11-29 Verfahren und Vorrichtung zum Entzundern einer metallischen Oberfläche sowie Anlage zum Herstellen von metallischen Halbzeugen
PCT/EP2014/076023 WO2015079052A1 (de) 2013-11-29 2014-11-28 Verfahren und vorrichtung zum entzundern einer metallischen oberfläche sowie anlage zum herstellen von metallischen halbzeugen

Publications (2)

Publication Number Publication Date
EP3074151A1 EP3074151A1 (de) 2016-10-05
EP3074151B1 true EP3074151B1 (de) 2017-11-01

Family

ID=52002951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14805888.6A Active EP3074151B1 (de) 2013-11-29 2014-11-28 Verfahren und vorrichtung zum entzundern einer metallischen oberfläche sowie anlage zum herstellen von metallischen halbzeugen

Country Status (8)

Country Link
US (1) US10130981B2 (ko)
EP (1) EP3074151B1 (ko)
JP (1) JP6302557B2 (ko)
KR (1) KR101834454B1 (ko)
CN (1) CN105916604B (ko)
DE (1) DE102013224506A1 (ko)
RU (1) RU2637192C1 (ko)
WO (1) WO2015079052A1 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3184182B1 (de) * 2015-12-23 2018-05-02 Hammelmann GmbH Vorrichtung und verfahren zum reinigen eines körpers mit einer abzutragenden oberflächenschicht
DE102016217561A1 (de) 2016-03-18 2017-09-21 Sms Group Gmbh Vorrichtung und Verfahren zum Entzundern eines bewegten Werkstücks
CN109698147B (zh) * 2018-12-24 2021-06-15 上海华力微电子有限公司 晶圆刻蚀系统及晶圆刻蚀方法

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SU621416A1 (ru) * 1977-04-25 1978-08-30 Pilipenko Viktor Vasilevich Способ удалени окалины с поверхности нагретого металла
DE4328303C2 (de) 1992-12-23 1997-02-13 Juergen Gaydoul Einrichtung zum Entzundern von warmem Walzgut
DE4345351B4 (de) * 1993-01-28 2004-08-12 Sms Demag Ag Zunderwäscher
JP2750802B2 (ja) * 1993-01-29 1998-05-13 日進工業 株式会社 物体表面の洗滌・剥離方法とその装置
DE69408595T2 (de) * 1993-05-17 1998-10-15 Danieli Off Mecc Produktionslinie zur Herstellung von Bändern und/oder Blechen
AT399833B (de) * 1993-08-23 1995-07-25 Voest Alpine Ind Anlagen Walzeinrichtung
US5697241A (en) * 1993-08-23 1997-12-16 Voest-Alpine Industrieanlagenbau Gmbh Rolling arrangement
JP3307771B2 (ja) * 1993-08-23 2002-07-24 ハンス‐ユルゲン、ガイドール 熱間圧延鋼板のデスケーリング手段
JP3174457B2 (ja) * 1994-05-17 2001-06-11 株式会社日立製作所 連鋳直結熱間圧延設備およびその圧延方法
JPH11216513A (ja) 1998-01-28 1999-08-10 Nkk Corp 鋼材のデスケーリング装置
RU2247617C1 (ru) * 2003-09-29 2005-03-10 Руденко Ростислав Владимирович Устройство для подачи жидкости на поверхность проката
ES2289488T3 (es) 2004-02-27 2008-02-01 Hermetik Hydraulik Ab Dispositivo hidraulico para descascarillar material laminado caliente.
US20070027735A1 (en) 2005-07-27 2007-02-01 Mark Rokos Methods and apparatus for managing a plurality of geographically dispersed properties

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Also Published As

Publication number Publication date
CN105916604B (zh) 2019-04-26
KR20160087836A (ko) 2016-07-22
KR101834454B1 (ko) 2018-03-05
RU2637192C1 (ru) 2017-11-30
DE102013224506A1 (de) 2015-06-03
EP3074151A1 (de) 2016-10-05
US20160303627A1 (en) 2016-10-20
CN105916604A (zh) 2016-08-31
JP2016538136A (ja) 2016-12-08
JP6302557B2 (ja) 2018-03-28
US10130981B2 (en) 2018-11-20
WO2015079052A1 (de) 2015-06-04

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