EP0230644B1 - Arrangement pour décalaminer des feuillards d'acier laminés à chaud - Google Patents

Arrangement pour décalaminer des feuillards d'acier laminés à chaud Download PDF

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Publication number
EP0230644B1
EP0230644B1 EP86117916A EP86117916A EP0230644B1 EP 0230644 B1 EP0230644 B1 EP 0230644B1 EP 86117916 A EP86117916 A EP 86117916A EP 86117916 A EP86117916 A EP 86117916A EP 0230644 B1 EP0230644 B1 EP 0230644B1
Authority
EP
European Patent Office
Prior art keywords
grinding
steel strip
rolls
arrangement according
grinding rolls
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.)
Expired
Application number
EP86117916A
Other languages
German (de)
English (en)
Other versions
EP0230644A1 (fr
Inventor
Wilfried Bald
Karl-Ernst Boucke
Hans Römmen
Manfred Fritz
Friedrich Dr. Hollmann
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 Siemag AG
Original Assignee
SMS Schloemann Siemag AG
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.)
Filing date
Publication date
Application filed by SMS Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to AT86117916T priority Critical patent/ATE47058T1/de
Publication of EP0230644A1 publication Critical patent/EP0230644A1/fr
Application granted granted Critical
Publication of EP0230644B1 publication Critical patent/EP0230644B1/fr
Expired legal-status Critical Current

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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
    • B21B45/06—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
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/142—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls by axially shifting the rolls, e.g. rolls with tapered ends or with a curved contour for continuously-variable crown CVC
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/45—Scale remover or preventor
    • Y10T29/4517—Rolling deformation or deflection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/3042—Means to remove scale or raised surface imperfection

Definitions

  • the invention relates to an arrangement for removing scale from hot-rolled steel strips by grinding or milling, in particular before the same is introduced into a pickle.
  • Hot-rolled steel strip has a superficial, firmly adhering scale layer which must be removed in a cold rolling mill before further reduction, since it would otherwise be rolled into the surface of the strip steel and cause defects, in particular surface defects thereof.
  • the scale layer is usually removed by pickling in a pickling bath.
  • thick layers of scale require relatively long treatment times, so that the baths that are passed through disadvantageously have large dimensions; The necessary regeneration of the bath liquid and the disposal of the bath liquid that has been used have also proven to be disadvantageous. Attempts have therefore been made to loosen or break the scale layer by rolling in special stands in order to offer the bath liquid more favorable attachment areas and to partially remove scale layers before the bath is reached.
  • the invention is based on the object of providing an arrangement which enables effective and uniform grinding or milling of the scale layer of a hot-rolled steel strip with relatively little effort.
  • FIG. 1 shows a cross section through a hot-rolled steel strip 1, the profile curvatures of which are shown for illustration purposes.
  • the steel strip 1 has a layer 2 of scale on all sides. If this scale layer is to be removed by grinding or milling, it is necessary to take the contours of the profile of the steel strip into account; If this is not done and, for example, a simple, straight milling cutter is used, the cutting edges pull through the curvature as a chord, and not only is the scale layer removed, but an area 3 of the metal itself, so that the steel strip undergoes a profile change on the one hand and on the other hand, the workload is unreasonably high, since not only the scale, but at least in the middle areas also considerable metal parts are processed, which also result in a disadvantageous loss.
  • Fig. 2 an arrangement for grinding or milling a scale layer of a hot-rolled steel strip 4 is shown schematically.
  • grinding rollers 5 and 6 are provided, the balls of which are not, as usual, cylindrical or slightly cambered are executed, but which are provided with a special cut, which results in slightly S-shaped contours.
  • the strength relationships are exaggerated to illustrate them and make them recognizable in the drawing. While the grinding roller 5, starting from the collar start shown on the drive side, initially increases in diameter and only passes through a minimum of the diameter in the second half, the diameter of the grinding roller 6 initially decreases and then increases to a maximum in the second half; the S-shaped contours run inversely.
  • the drive-side roller journals of the grinding rollers 5 and 6 are connected to drive motors 8 via spindles 7; since the grinding rollers are held axially displaceable, the spindles 7 are constructed telescopically, for example, to accommodate the displacement.
  • the bearing is symbolically illustrated on the operator-side roll neck 9 of the grinding roll 7.
  • An adjusting device 10 which is shown as a hydraulic cylinder for illustrative purposes, first acts on the bearing or chock supporting the roll neck, and a bending cylinder 11, which bends moments and, acts on the same roll pin or the bearing or chock surrounding it so that it can cause a certain deflection of the grinding roller 5. Furthermore, the piston of a displacement cylinder 12 is coupled to the roll neck 9.
  • this displacement cylinder 12 is additionally provided on the drive side.
  • the arrangement shown was chosen for the sake of a clear representation in the drawing, and for the same reasons corresponding arrangements of the grinding roller 6 are shown as little as the drive-side adjusting device and the drive-side bending cylinder of the grinding roller 5.
  • a detector 13 is provided above the steel strip 4, which allows the profile shape of the steel strip 4 to be recognized.
  • the steel strip 4 is passed between the grinding rollers 6 and 14 and 15, respectively, and these are guided against the steel strip 4 with appropriate pressure.
  • the profile shape of the steel strip 4 is determined by means of the detector 13 and specified to a control device 16.
  • the control device is also given the respective actual values of both the stroke and / or the force exerted by the adjusting device 10 as well as the actual values of the axial displacement of the grinding roller 5 and the bending force exerted by the bending cylinder 11. Based on these predetermined values, the control device 16 adjusts both the setting and the bending forces, but in particular the axial opposite displacement of the grinding rollers of a pair of rollers, for example the grinding rollers 5 and 6, in such a way that the gap formed between the grinding rollers of the profile shape of the steel strip 4 corresponds.
  • the grinding rollers can be equipped with an appropriate surface texture.
  • the determination of the profile shape of the steel strip 4 for specification to the control device 16 can be replaced by manual input or input by means of data carriers or can also be supported. There is also the possibility, for example, of using thickness gauges distributed over the bandwidth. In the case of superficial, for example optical scanning, this can be supplemented by scanning the underside. However, it is also possible to provide an optical scanning which reacts to light-dark values in such a way that it is able to distinguish the remaining scale and bare metal that has already been reached, and in this case to arrange them after the grinding roller arrangements in order to ensure the uniformity of the check the grinding effect achieved and, if necessary, correct the grinding effect by changing the profile of the gap formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Heat Treatment Of Steel (AREA)
  • Metal Rolling (AREA)

Claims (9)

1. Agencement pour l'élimination de croûtes d'oxyde d'une bande d'acier laminée à chaud, par ponçage ou fraisage, notamment avant l'introduction de celle-ci dans un bain de décapage, agencement comportant des cylindres de ponçage (5, 6) entraînés, montés dans une cage et positionnables contre la surface de la bande d'acier (4), agencement dont deux cylindres complémentaires au moins sont déplaçables axialement en sens opposés et présentent des contours de corps en forme de S orientés de manière inverse de telle sorte, qu'ils sont complémentaires sans interruption, dans une certaine position axiale des cylindres de ponçage.
2. Agencement selon la revendication 1 caractérisé en ce que les corps des cylindres de ponçage (5, 6) sont munis d'une structure de surface abrasive.
3. Agencement selon la revendication 1 ou 2 caractérisé en ce que les corps des cylindres de ponçage sont alimentés en un agent abrasif.
4. Agencement selon la revendication 1 ou 2 caractérisé en ce que les corps des cylindres de ponçage (5, 6) sont équipés d'arrêtes de fraisage.
5. Agencement selon l'une quelconque des revendications 1 à 4 caractérisé en ce que des dispositifs de flexion (11) des cylindres de ponçage sont associés aux logements des tourillons (9) des cylindres de ponçage (5, 6).
6. Agencement selon l'une quelconque des revendications 1 à 5 caractérisé en ce que des cylindres d'appui servant d'appui à des tronçons de corps de cylindre de ponçage au moins sont associés auxdits cylindres de ponçage (5, 6).
7. Agencement selon l'une quelconque des revendications 1 à 6 caractérisé en ce que plusieurs, au moins deux jeux de cylindres de ponçage (5, 6; 14, 15), sont disposés l'un derrière l'autre dans le sens longitudinal de la bande d'acier (4).
8. Agencement selon l'une quelconque des revendications 1 à 7 caractérisé par un dispositif de commande (16) qui, sur base de valeurs caractérisant le profil de la bande d'acier, prédéterminées et/ou déterminées par des détecteurs (13), commande des déplacements axiaux inverses des cylindres de ponçage (5, 6) profilés ainsi que, éventuellement, des sollicitations en flexion de ceux-ci, qui adaptent les génératrices de contact des cylindres de ponçage (5, 6, 14, 15) à la courbure du profil de la bande d'acier.
9. Agencement selon la revendication 8 caractérisé en ce que des détecteurs optiques captant les surfaces opposées de la bande d'acier sont associés au dispositif de commande (16), détecteurs qui déterminent, lors de l'exploration point par point du profil de la bande, dans quelles zones de largeur des croûtes d'oxyde sont encore présentes et dans quelles zones de largeur apparaît l'acier.
EP86117916A 1986-01-07 1986-12-22 Arrangement pour décalaminer des feuillards d'acier laminés à chaud Expired EP0230644B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86117916T ATE47058T1 (de) 1986-01-07 1986-12-22 Anordung zum entfernen von zunder von warmgewalzten stahlbaenden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3600144 1986-01-07
DE19863600144 DE3600144A1 (de) 1986-01-07 1986-01-07 Anordnung zum entfernen von zunder von warmgewalzten stahlbaendern

Publications (2)

Publication Number Publication Date
EP0230644A1 EP0230644A1 (fr) 1987-08-05
EP0230644B1 true EP0230644B1 (fr) 1989-10-11

Family

ID=6291433

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86117916A Expired EP0230644B1 (fr) 1986-01-07 1986-12-22 Arrangement pour décalaminer des feuillards d'acier laminés à chaud

Country Status (6)

Country Link
US (1) US4862570A (fr)
EP (1) EP0230644B1 (fr)
JP (1) JPS62187515A (fr)
CN (1) CN87100083A (fr)
AT (1) ATE47058T1 (fr)
DE (2) DE3600144A1 (fr)

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DE3634367A1 (de) * 1986-10-09 1988-04-21 Schloemann Siemag Ag Walzen-anordnung zur verformungsfreien behandlung von bewegten bandfoermigen erzeugnissen
SE462078B (sv) * 1988-09-16 1990-05-07 Tom Nordquist Saett foer bandslipning av aemnen av metaller och metallegeringar
DE4224846A1 (de) * 1992-07-28 1994-02-03 Thyssen Stahl Ag Verfahren und Vorrichtung zum Anschleifen der Oberfläche von metallischen Langprodukten, insbesondere Metallbändern
US5723019A (en) * 1994-07-15 1998-03-03 Ontrak Systems, Incorporated Drip chemical delivery method and apparatus
DE19526280A1 (de) * 1995-07-19 1997-01-23 Schloemann Siemag Ag Schleifvorrichtung
US20030234070A1 (en) * 1996-03-26 2003-12-25 John D. Rupel Expandable and collapsible window covering and methods for making same
DE19717200B4 (de) * 1997-04-24 2005-05-25 Sms Demag Ag Vorrichtung zur Bearbeitung der Oberfläche von heißen Brammen oder Bändern
US6439883B1 (en) 2000-04-11 2002-08-27 Ajax Magnethermic Corporation Threading and scale removal device
DE102007022932A1 (de) * 2006-05-26 2007-12-20 Sms Demag Ag Verfahren und Vorrichtung zum Herstellen eines Metallbandes durch Stranggießen
TW200846099A (en) * 2007-05-22 2008-12-01 Te-Chang Tsai Sheet metal machining apparatus
US20110237169A1 (en) * 2010-03-26 2011-09-29 Laitram, L.L.C. Peeler with crowned rollers
CN104368602B (zh) * 2014-09-30 2017-04-19 巢湖广丰金属制品有限公司 一种带钢表面缺陷整形自动控制方法
CN105583447A (zh) * 2014-11-14 2016-05-18 江西昌河航空工业有限公司 铝合金零件薄底板的加工方法
CN106140840B (zh) * 2015-03-30 2018-09-04 宝山钢铁股份有限公司 一种板带表面除鳞设备及其方法
US10913071B2 (en) 2016-03-09 2021-02-09 Pearson Incorporated Scalper apparatus and processing system
DE102016217561A1 (de) * 2016-03-18 2017-09-21 Sms Group Gmbh Vorrichtung und Verfahren zum Entzundern eines bewegten Werkstücks
US10322487B1 (en) * 2016-07-15 2019-06-18 Pearson Incorporated Roller mill grinding apparatus with regenerative capability
CN106694585A (zh) * 2017-02-13 2017-05-24 天津中钢联科技发展有限公司 一种高效率的热轧钢板差速平整除锈的装置
US10807098B1 (en) 2017-07-26 2020-10-20 Pearson Incorporated Systems and methods for step grinding
CN108672508B (zh) * 2018-06-11 2020-09-11 山西太钢工程技术有限公司 用于湿式破鳞机的支撑辊
US11325133B1 (en) 2018-07-26 2022-05-10 Pearson Incorporated Systems and methods for monitoring the roll diameter and shock loads in a milling apparatus
US10751722B1 (en) 2018-10-24 2020-08-25 Pearson Incorporated System for processing cannabis crop materials
CN109773256A (zh) * 2019-02-01 2019-05-21 天津市巨星祥海机械有限公司 一种钢板裁切机
US10785906B2 (en) 2019-02-19 2020-09-29 Pearson Incorporated Plant processing system
CN112077158B (zh) * 2019-06-12 2022-11-18 宝山钢铁股份有限公司 金属板带磨削除鳞装置及方法
US10757860B1 (en) 2019-10-31 2020-09-01 Hemp Processing Solutions, LLC Stripper apparatus crop harvesting system
US10933424B1 (en) 2019-12-11 2021-03-02 Pearson Incorporated Grinding roll improvements

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Also Published As

Publication number Publication date
CN87100083A (zh) 1987-09-23
ATE47058T1 (de) 1989-10-15
DE3666158D1 (de) 1989-11-16
JPS62187515A (ja) 1987-08-15
DE3600144A1 (de) 1987-07-09
US4862570A (en) 1989-09-05
EP0230644A1 (fr) 1987-08-05

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