EP0264849A2 - Laminage de fers marchands à faibles tolérances - Google Patents

Laminage de fers marchands à faibles tolérances Download PDF

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Publication number
EP0264849A2
EP0264849A2 EP87115159A EP87115159A EP0264849A2 EP 0264849 A2 EP0264849 A2 EP 0264849A2 EP 87115159 A EP87115159 A EP 87115159A EP 87115159 A EP87115159 A EP 87115159A EP 0264849 A2 EP0264849 A2 EP 0264849A2
Authority
EP
European Patent Office
Prior art keywords
caliber
rollers
force
jacket
rolling
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.)
Withdrawn
Application number
EP87115159A
Other languages
German (de)
English (en)
Other versions
EP0264849A3 (fr
Inventor
Hugo Dr. Feldmann
Hubert Müller
Claus Schlanzke
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
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, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0264849A2 publication Critical patent/EP0264849A2/fr
Publication of EP0264849A3 publication Critical patent/EP0264849A3/fr
Withdrawn legal-status Critical Current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
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/18—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for step-by-step or planetary rolling; pendulum mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • 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
    • B21B13/08—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process
    • B21B13/10—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane
    • B21B13/103—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane for rolling bars, rods or wire
    • 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
    • B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process

Definitions

  • the invention relates to a method for rolling strand-shaped profiled rolling stock within narrow tolerances by means of more than two rolls each having caliber channels, which are arranged in a star shape in a rolling stand in such a way that their caliper channels delimit the caliber to be rolled, and in which the caliper channels are located on both sides adjoining outwardly tapering, frustoconically shaped jacket regions of the rolls and a roll stand for carrying out the method.
  • Such rolling stands are known from DE-OS 20 35 482 and DE-OS 25 24 224, where more than two rolls including a caliber are used to ensure stable, tilt-free guidance of the profiled rolling stock and by a higher average reduction of the rolling stock to increase the rolling performance.
  • the disadvantage here is that the known disadvantages of only partially closed rolling stock guides also occur and, if the formed caliber is incompletely filled, the latter is not completely filled and thus the rolling stock is not completely professional is liert, while in the event of an overfill of the caliber formed, the rolled profile in each case in the region of the mutually opposing jacket regions of the rollers has additional, strip-like outwardly projecting approaches.
  • the invention is based on the object, on the one hand, to prevent inaccuracies in the caliber formed, which occur due to changing spring deflections of the stand under the influence of fluctuating rolling forces, as well as the occurrence of undesired strip-like approaches of the rolling stock.
  • rollers are set in the direction of the center of the caliber with a setting force which exceeds the rolling force by a pretensioning force, so that the jacket regions of the rollers run directly against one another while stabilizing the enclosed caliber under the action of the pretensioning force. It is hereby achieved that, on the one hand, due to a largely constant contact force, the springing-up of the scaffolding is avoided under fluctuating rolling forces and the scaffolding can be regarded as relatively rigid and rigid. Fluctuations in the rolling force are only noticeable in this case as fluctuations in the preload forces absorbed by the rollers themselves.
  • a work roll 1 of a roll set comprising four rolls is shown in half section, which is equipped on both sides with roll neck 2, one of which is in a type drive pin 3 ends.
  • the roller is equipped with a caliber channel 4, to which truncated-cone-shaped jacket regions 5 are connected on both sides.
  • rollers are arranged there in a star shape so that their truncated cone-shaped lateral surfaces face each other at a short distance and thus allow the rollers to be adjusted alternately.
  • lateral strip-like approaches are formed by the rolling stock deformed under rolling force, which sensitively disturb the profile and its dimensional accuracy.
  • the rolls of a set of rolls are set against one another in such a way that the frustoconical shell regions 5 of adjacent rolls lie against one another under prestress.
  • the positioning force that exceeds the rolling force by the pretensioning force still requires a practically automatic compensation of scaffolding strains. If, for example, an increased rolling force occurs as a result of the locally reduced temperature of the rolling stock, this is not able to allow the stand, which is elastic in itself, to spring up: only the pretensioning force transmitted directly by the rolls or their frustoconical shell regions 5, with the adjusting force usually being kept constant to the increase the rolling force lowered.
  • FIG. 2 shows a stand provided for receiving such rolls forming a closed caliber.
  • laterally projecting spars 16 are provided, and both the vertical spars 15 and the horizontal spars 16 are bridged by yokes 17, each of which supports hydraulic adjustment devices 18, which in turn are supported by pressure pieces 22 on the chocks 19 act from horizontal rollers 21 which can be driven by drive spindles 20.
  • the vertical rollers 23 are equipped with bearings provided in the interior of the rollers and are adjusted via pressure pieces 24 by means of the horizontally acting adjusting devices 18. It is thus possible to drive at least the two horizontal rolls 21 of the four rolls 21 and 23 forming the caliber to be rolled.
  • the vertical rollers 23 are carried along by friction over the frustoconical shell regions 25 pressed against one another by means of the prestressing force, and the rolling stock itself also contributes to this; if necessary, however, it is also possible to additionally drive the horizontal rollers, for example via drive spindles.
  • the adjusting devices 18, which can be formed, for example, by hydraulic cylinders, are set in such a way that the individual rollers 21, 23 lie firmly on one another with their truncated cone-shaped jacket areas under the action of a pretensioning force.
  • the individual rollers 21, 23 lie firmly on one another with their truncated cone-shaped jacket areas under the action of a pretensioning force.
  • the vertical rollers 23 are entrained by frictional forces over their frustoconical shell regions 25.
  • the arrangement can be varied widely; this begins with the fact that the number of rolls is not limited to the number four used in the figure: in the same way, for example, three or five rolls can together form a caliber. It is only essential that the rollers are biased against each other with a setting force exceeding the rolling force and are equipped with supporting surfaces which, running on one another, take over the portion of the setting force exceeding the rolling force as a biasing force.
  • this pretensioning force stabilizes the rolling; For example, when stronger, harder and / or colder profile parts enter the stand, a higher rolling force is required to deform the rolling stock. In the case of a fixed mechanical adjustment, for example, an increased rolling force would be transmitted to the stand, which would spring it open and thus lead to an uncontrolled enlargement of the caliber.
  • the scaffold preloaded in the specified manner only transfers one when an increased rolling force occurs while keeping the contact force constant increased prestressing force, while the load on the scaffolding and thus its elongation remain constant and the caliber formed is not adversely affected.
  • rollers are designed, for example, in accordance with FIG. 3.
  • 3 shows the circumferential regions of four rollers 7 which are in the working position and which form the caliber 6.
  • the rollers contain an undercut 10 through which the actual body of the roller is combined in the region below the caliber channel 9 to form a cylindrical, disk-like web 8, the apex of which the caliber channel 9 carries.
  • the undercuts 10 form on each side of each of the caliber wings 11, the outer, frustoconical jacket regions 12 of which lie on one another under prestress.
  • the slope of the jacket lines of the jacket line decreases che, so that here adjoining the caliber channels are formed boundary surfaces 13, which in the little pretensioned state have a spacing, albeit a very small one, and enclose a gap of small thickness between them.
  • the gap is so slim that, even when the profile is filled to a large extent, no laterally attached strips of the rolling stock can be seen.
  • the wings 11, thanks to their undercuts 10, prove to be elastic, so that the wings 11 are able to deform elastically under the action of increased pretensioning forces and thus the caliber 6 formed is controlled or narrowed in a controlled manner.
  • the less elastic areas directly adjoining the caliber channel 9 are not able to limit the elasticity of the wings, since they step back, albeit only very slightly, against the truncated cone-shaped jacket areas 12 that support one another.
  • the rollers shown in FIG. 3 are therefore outstandingly suitable for controlling or regulating the caliber under the action of a controlled or regulated changing pretensioning force.
  • FIG. 4 Another exemplary embodiment of a roller that is relatively easily elastically deformable by pretensioning forces is shown in FIG. 4, as shown broken away in FIG. 3.
  • a disk-like web 31 extends from the actual roller body, into the apex of which the caliber channel 32 is incorporated.
  • the outwardly facing truncated cone-shaped jacket region 33 serves as the tread of the rollers against each other and absorbs the biasing forces.
  • the areas 34 are essentially parallel to the jacket areas 33, but slightly recede against them, so that here, too, a fixed one in the direct extension of the web 31 Support avoided and thus the elasticity is promoted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP87115159A 1986-10-20 1987-10-16 Laminage de fers marchands à faibles tolérances Withdrawn EP0264849A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3635566 1986-10-20
DE3635566 1986-10-20

Publications (2)

Publication Number Publication Date
EP0264849A2 true EP0264849A2 (fr) 1988-04-27
EP0264849A3 EP0264849A3 (fr) 1989-11-02

Family

ID=6312027

Family Applications (2)

Application Number Title Priority Date Filing Date
EP87115159A Withdrawn EP0264849A3 (fr) 1986-10-20 1987-10-16 Laminage de fers marchands à faibles tolérances
EP87115160A Expired - Lifetime EP0264850B1 (fr) 1986-10-20 1987-10-16 Laminage de fers marchands à faibles tolérances

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP87115160A Expired - Lifetime EP0264850B1 (fr) 1986-10-20 1987-10-16 Laminage de fers marchands à faibles tolérances

Country Status (7)

Country Link
US (2) US4803863A (fr)
EP (2) EP0264849A3 (fr)
JP (2) JPS63104701A (fr)
KR (2) KR880004864A (fr)
CN (2) CN1010183B (fr)
AT (1) ATE74032T1 (fr)
DE (1) DE3777749D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0719600A1 (fr) * 1994-12-28 1996-07-03 INNSE INNOCENTI ENGINEERING S.p.A. Une unité de laminage pour laminer des barres ou des corps tubulaires
WO1999025499A1 (fr) * 1997-11-14 1999-05-27 Voest-Alpine Industrieanlagenbau Gmbh Procede de laminage de precision

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10150146A1 (de) * 2001-10-11 2003-04-17 Sms Demag Ag Walzgutführungseinrichtung an Vertikalwalzgerüsten
CN100460096C (zh) * 2005-06-23 2009-02-11 中国科学技术大学 一种导爆索轧制方法
CN102581001B (zh) * 2012-02-01 2013-09-18 万运苍 一种四辊轧机胎具
ITUB20154967A1 (it) * 2015-10-16 2017-04-16 Danieli Off Mecc Metodo ed apparato di laminazione di prodotti metallici
CN113894168A (zh) * 2021-10-22 2022-01-07 烟台万隆真空冶金股份有限公司 一种接触线的成型方法
CN114589200A (zh) * 2022-03-18 2022-06-07 华航高科(广州)有限公司 完全闭合异型线材轧辊结构

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741884C (de) * 1940-05-25 1953-05-11 Trierer Walzwerk A G Wuppertal Walzwerk zum Kaltwalzen von voellig ebenen Metallbaendern und -streifen
DE1142823B (de) * 1956-12-31 1963-01-31 Ernst Grob Vorrichtung zum Laengsprofilieren von kalten Werkstuecken, insbesondere von Zahnraedern und Mehrkeilwellen
DE2035482C2 (de) * 1968-12-12 1983-01-20 Kocks Technik Gmbh & Co, 4010 Hilden Walzenkalibrierung für Feineisen-, insbesondere für Drahtwalzstraßen
CH564381A5 (en) * 1973-05-11 1975-07-31 Escher Wyss Ag Rolling mill with at least two rollers - ends of rolls contain grooves or reduced roll-barrel thickness to premit flexure
FR2312307A1 (fr) * 1975-05-30 1976-12-24 Nippon Steel Corp Procede de laminage de barres et tiges avec un dispositif a quatre cylindres et appareil pour sa mise en oeuvre
SU897214A1 (ru) * 1979-10-18 1982-01-15 Головное Специализированное Конструкторское Бюро По Комплексам Машин Для Механизации Работ В Садах,Виноградниках,Питомниках И Ягодниках Кишиневского Научно-Производственного Объединения "Плодсельмаш" Накопитель дл линий товарной обработки плодов
SU882671A1 (ru) * 1980-03-24 1981-11-23 Челябинский политехнический институт им. Ленинского комсомола Трехвалковый замковый калибр
DE3103156A1 (de) * 1981-01-30 1982-08-12 Magnitogorskij Gorno-MetallurgiČeskij institut imeni G.I. Nosova, Magnitogorsk Mehrwalzengeruest zur bearbeitung von metallen im bildsamen zustand
IT1152421B (it) * 1982-06-18 1986-12-31 Giulio Properzi Gruppo di laminazione per un laminatoio per barre metalliche e simili
SU1071336A1 (ru) * 1983-01-04 1984-02-07 Всесоюзный научно-исследовательский и проектный институт тугоплавких металлов и твердых сплавов Прокатный валок
DE3433300A1 (de) * 1984-09-11 1986-03-20 SMS Schloemann-Siemag AG, 4000 Düsseldorf Verfahren und vorrichtung zum walzen von strangfoermigem profilierten walzgut
US4674312A (en) * 1985-01-18 1987-06-23 Westinghouse Electric Corp. Pilgering apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0719600A1 (fr) * 1994-12-28 1996-07-03 INNSE INNOCENTI ENGINEERING S.p.A. Une unité de laminage pour laminer des barres ou des corps tubulaires
US5765423A (en) * 1994-12-28 1998-06-16 Innse Innocenti Engineering S.P.A. Rolling unit for rolling rod-shaped or tubular bodies
WO1999025499A1 (fr) * 1997-11-14 1999-05-27 Voest-Alpine Industrieanlagenbau Gmbh Procede de laminage de precision
US6216517B1 (en) 1997-11-14 2001-04-17 Voest Alpine Industieanlagenbau Gmbh Precision-rolling process

Also Published As

Publication number Publication date
EP0264850A2 (fr) 1988-04-27
EP0264849A3 (fr) 1989-11-02
CN87107836A (zh) 1988-07-06
US4803863A (en) 1989-02-14
EP0264850A3 (en) 1989-10-25
DE3777749D1 (de) 1992-04-30
CN87107793A (zh) 1988-06-08
CN1010183B (zh) 1990-10-31
ATE74032T1 (de) 1992-04-15
US4813257A (en) 1989-03-21
JPS63177901A (ja) 1988-07-22
EP0264850B1 (fr) 1992-03-25
CN1011204B (zh) 1991-01-16
KR880004864A (ko) 1988-06-27
KR880004869A (ko) 1988-06-27
JPS63104701A (ja) 1988-05-10

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Inventor name: SCHLANZKE, CLAUS

Inventor name: MUELLER, HUBERT

Inventor name: FELDMANN, HUGO, DR.