EP0309394B1 - Cage de laminoir ou de coulée continue - Google Patents

Cage de laminoir ou de coulée continue Download PDF

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Publication number
EP0309394B1
EP0309394B1 EP88810556A EP88810556A EP0309394B1 EP 0309394 B1 EP0309394 B1 EP 0309394B1 EP 88810556 A EP88810556 A EP 88810556A EP 88810556 A EP88810556 A EP 88810556A EP 0309394 B1 EP0309394 B1 EP 0309394B1
Authority
EP
European Patent Office
Prior art keywords
bearing housing
adjusting
roll
stand according
roll nip
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 - Lifetime
Application number
EP88810556A
Other languages
German (de)
English (en)
Other versions
EP0309394A1 (fr
Inventor
Bruno Frischknecht
Rudolf Roder
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.)
LAUENER ENGINEERING AG
Original Assignee
Lauener Engineering 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 Lauener Engineering AG filed Critical Lauener Engineering AG
Priority to AT88810556T priority Critical patent/ATE82166T1/de
Publication of EP0309394A1 publication Critical patent/EP0309394A1/fr
Application granted granted Critical
Publication of EP0309394B1 publication Critical patent/EP0309394B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
    • B21B31/04—Rolling stand frames or housings; Roll mountings ; Roll chocks with tie rods in frameless stands, e.g. prestressed tie rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/30—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by wedges or their equivalent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/58—Roll-force control; Roll-gap control
    • B21B37/62—Roll-force control; Roll-gap control by control of a hydraulic adjusting device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
    • B21B2203/36—Spacers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/24—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting

Definitions

  • the invention relates to a prestressed stand for rolling or roll casting of metals in strip form with a first, fixed support and a second, adjustable for setting a roll gap bearing housing, which support the bearings of the rollers, each in the outer region of the facing end faces Bearing housing recesses are provided for receiving an adjusting device for the roll gap.
  • the conventional way of setting a roll gap is to clamp the rolls onto the plates on the one hand or to position the rolls via a spindle or a hydraulic cylinder, clamped in a roll stand.
  • the expansion of the roll stand always affects the roll gap, which leads to increased inaccuracy.
  • Driving on solid plates offers no possibility of adjusting the roll gap during operation.
  • DE-A1-2646388 shows a strand guide on a casting plant with mutually opposite frame or scaffold parts connected by tie rods, in which the strand guide rollers are mounted.
  • the casting gap ie the distance between two casting rolls, is changed by inserting spacer plates and determining the distance between the bearing housings from each other. Calibrated plates are necessary for precise adjustment, which are based on the different chocks are matched. The fine adjustments usually have to be made with thin gauges. A correction of the casting gap during the operation of the casting system is completely impossible.
  • DE-A1-3238938 discloses a device according to the preamble of claim 1 for adjusting a gap formed by two rolls, in particular a casting gap of a roll casting installation for producing aluminum strips.
  • the rollers are arranged in roller bearings surrounded by bearing housings.
  • At least one of the bearing housings has, at its corner regions opposite the other bearing housing, in each case inclined surfaces at a certain angle with respect to an axis, which wedge surfaces of movable adjusting blocks bear against. The wedges can therefore be moved in the direction vertical to the roller axes.
  • US-A-4660400 describes a roll stand for the production of pipes and comprises work and support rolls arranged in pairs. After removing a locking bolt, an attachment with the upper support roller can be opened around a turning axis. The work rolls arranged in the housing can be lifted off together with the pedestals, replaced with new units and the attachment can be closed again. Preloading takes place in two separate stages: First the scaffold with eccentrics, whereby the attachment is rotated around the locking bolt removed when opening, then the work rolls themselves with other eccentrics, whereby the bearing blocks are pivoted about axes of rotation. The axes of the work rolls must be aligned with the help of wedges which can be moved with screws running parallel to the roll axes. Pressure transducers continuously monitor the pre-tension applied to the work rolls in the second stage.
  • DE-A1-3238936 describes a prestressable roll stand for producing rolled strips with at least two rolls mounted in holding frames.
  • the holding frames are connected to each other by pre-tensioning devices from a hydraulic or pneumatic cylinder-piston system. The setting of the roll gap is not affected.
  • the inventor has set himself the task of creating a stand for rolling or roll casting of the type mentioned, which allows a further simplified adjustment of the roll gap for all types of stands, with stand housings clamped on one another or arranged in a stand, which at least maintains stability and creates opportunities for the use of electronic control and control with appropriately designed scaffolding.
  • the distance between the bearing housings and thus the rollers is therefore not changed by parallel displacement of the second or upper bearing housing, but by its adjustable pivoting about a pivot axis.
  • the bearing housing with the means according to the invention for adjusting the roll gap can be used in stands of all known embodiments, for example in closed stands or in stands for opening. Scaffolds according to DE-A-32 38 936, which are described there for strip casting machines, have proven to be particularly advantageous. This scaffolding works according to the pretensioning principle, but with a column-less system.
  • the means for adjusting the roll gap essentially correspond to known means, which have hitherto been provided on both sides of the end faces of the bearing housing.
  • interchangeable spacer plates are arranged in the corresponding cutouts, preferably corner cutouts. These plates must be slightly cambered at least on one side, because due to the different swivel positions not always a full surface Edition can arise.
  • Interchangeable gauge plates can be added for fine adjustment. Both spacer plates and gauge plates are precisely calibrated.
  • the means for changing the distance between the bearing housings, the spacer plates and / or gauge plates cannot be exchanged under load, so automated operation is not an option here.
  • non-prestressed scaffolding can also be equipped or retrofitted; however, these have the disadvantages mentioned with regard to the expansion under the action of force.
  • the means for adjusting the roll gap with respect to the axis of rotation of the second bearing housing can be tangential spindles which can be rotated by hand or by machine.
  • the means for adjusting the roll gap are designed as a hydraulic electronic roll gap control system. Like the spindle mentioned above, this can be operated automatically.
  • a hydraulic electronic roller control system is relatively complex and expensive according to the current state of the art.
  • wedges which can be displaced relative to one another in the direction of the axes of the rollers with height adjustment are arranged in the corresponding recesses in the bearing housing. It has proven to be particularly advantageous to arrange double wedges which can be displaced by a spindle with screw threads of opposite pitch, as described in DE-A-32 38 938. Each of the two double wedges can be supported in a recess, in particular a corner recess.
  • the means for adjusting the roll gap can be flexible elements with a defined tension, which generate a counter pressure to a prestress and are therefore partially pressed into the working position, depending on the selected stiffness.
  • This resilient element must be able to lift the upper roller with its bearings and the bearing housing when the preload is relieved.
  • the flexible elements which are preferably designed as spring elements, load cells or hydraulic elements, and which are interchangeable, are designed according to the preload pressure and the size of the roller force, as well as the desired adjustment range, and the characteristic curves are defined accordingly.
  • the means for adjusting the roll gap can be mounted on the inlet or outlet side of the stand, the means for pivoting the second bearing housing are arranged accordingly.
  • the adjustable means for changing the distance between the bearing housings can preferably be controlled and controlled in an electronic control circuit by means of displacement sensors of the roll gap and / or strip thickness detection.
  • the stand for rolling or roll pressing is used for metals.
  • liquid metal can be introduced into the roll or casting gap 10 between the lower roll 12 and the upper roll 14 from the left or the right side from a nozzle, not shown, in the standless, prestressed stand of a roll casting machine according to FIG. 1.
  • These rollers are largely covered by the first, here lower bearing housing 16 or by the second, here upper bearing housing 18.
  • the first bearing housing 16 lies on a flat support 20 and a support 22 with centering on a base plate 24, the latter support being designed in a known manner for applying "pass-line" corrections.
  • the base plate 24 in turn is supported on the foundation 28 by a frame support 26.
  • the second bearing housing 18 protrudes yoke-like at the top and receives the cylinder rods 30 of a pretensioning device 32 on both sides.
  • the tension is generated hydraulically in the cylinders 34, the necessary infrastructure known per se is not shown.
  • the means 38 for forming a pivot axis 46 of the second bearing housing 18 about an axis of rotation 46 running parallel to the axes 42, 44 of the rollers 12, 14 are arranged in cutouts 36 in the first and second bearing housings 16, 18.
  • the means 40 shown in the following figures, also arranged in recesses 36, for adjusting the distance between the bearing housings 16, 18 and thus the roll gap 10 are designated by 40.
  • FIGS. 2 and 3 of a means 40 (FIG. 1) for adjusting the casting gap is fastened here in corner recesses of the bearing housing 16, 18.
  • a support plate 48 is arranged on the first, lower bearing housing 16.
  • an exchangeable spacer plate 50 which is slightly convex at the top - hardly recognizable in the figures.
  • the spacer plate can be omitted in the limit case.
  • other means for rough adjustment can be used, e.g. an also interchangeable resilient element in the form of a load cell or a mechanically or hydraulically acting spring element.
  • the intermediate plate 52 lying on the spacer plate 50 or directly on the support plate 48 carries the housing 54 for a double wedge 56, which corresponds in terms of structure and operation to the double wedge adjustment of DE-PS 32 38 938.
  • the axis 58 of the spindle 60 does not run transversely to the axes 42, 44 of the rollers 12, 14, but parallel to it.
  • the spindle has two screw threads with opposite pitch, whereby the wedges 56 can be moved together or apart.
  • the base of the wedges 56 lies over the entire surface of a correspondingly designed surface of the housing 54 which is inclined at an angle ⁇ .
  • the housing 54 is on the end face closed for the double wedge with a flange 62, which are fastened to the housing by means of screws 64 and receive pins 66 on the lower side.
  • the threaded spindle 60 can be rotated by means of a manually operated ratchet 68, shown in broken lines in FIG. 2.
  • the scale 70 can be read for fine adjustment.
  • the riddle can be replaced by an electric, hydraulic or pneumatic drive of a known type. This is particularly necessary for automated control.
  • the screw 72 is used to fasten the double wedge setting to the second bearing housing 18. These screws 72 pass through the side walls 73 of the housing 54.
  • a cylinder housing 130 with a piston 132 is arranged in a corner recess of the lower bearing housing 16.
  • a plate 134 which is arranged in the corresponding corner cutout of the upper bearing housing 18 and has a concave bearing surface, lies on the cambered piston.
  • a hydraulic medium 138 for example a plastic mass, a grease or a hydraulic oil, can be pressed into the interior through a pipe socket 136 opening into the cylinder housing 130.
  • a pipe socket 136 opening into the cylinder housing 130 e.g. a known, not shown, manually or motor-operated pump used.
  • the means 38 for forming the pivot axis 46 consist of a cambered support plate 140 which is arranged in a recess in the lower bearing housing 16 and has a recess which effects centering.
  • the support plate is arranged in the upper bearing housing 18.
  • Both bearing housings 16, 18 each have a bore 94, 96 for receiving a roll neck.
  • FIG. 5 shows a further variant of the means 40 for adjustment of the roll gap, which contains a spindle 92 which is rotatable by hand or by motor means.
  • the spindle 92 according to FIGS. 2 and 3 can also have two threads, the roll gap is then less finely adjustable with the same pitch of the thread.
  • the means 38 for forming the axis of rotation 46 correspond to those of FIG. 4.
  • the hinge 74 shown in FIG. 6 for pivoting the second bearing housing 18 essentially consists of a fork and a tongue which are penetrated by a bolt which can be locked in the longitudinal direction.
  • the bolt has as little play as possible, particularly in the case of non-prestressed frameworks.
  • the fork can be attached to the first or second bearing housing 16, 18, the tongue correspondingly to the other.
  • slide bearings 82 are shown for pivoting the second bearing housing 18, which have a bearing shell 84 with a cylindrical recess or a bearing shell 86 with a spherical recess.
  • the counterpart 88 or 90 correspondingly has at least one partially cylindrical or spherical surface.
  • both types of individual parts can be attached to both bearing housings 16, 18.
  • the means 38 for pivoting the second bearing housing 8 about the pivot axis running parallel to the roller axes 42, 44 46 are only indicated, they correspond to Figs. 4-8.
  • the means 40 for adjusting the roll gap (10 in FIG. 1) consist of a spring unit 98 and a double wedge 56 according to FIGS. 2 and 3.
  • the interchangeable spring unit 98 is used for rough adjustment, the double wedge 56 for fine adjustment.
  • the spring unit is partially pressed in by the force F of the preload. However, the spring unit is so strong that the upper roller with the upper bearing housing 18 is lifted off if the pretensioning force is removed.
  • the spring unit 98 is integrated in the lower bearing housing 16 and is also used for rough adjustment.
  • a double wedge 56 is again arranged for fine adjustment.
  • FIGS. 9 and 10 are particularly well suited for automatic regulation, wherein the pretensioning force F, the double wedge 56 and possibly the spring unit 98 can be set electronically controlled.
  • Figures 11-13 show examples with stand frames. 11 can be opened by removing at least one bolt 100. The assembled scaffold of Fig. 12 can be dismantled by removing connecting screws, not shown. 13 shows a scaffold delimited by a closed stand. In all the embodiments according to FIGS. 11-13, known means (not shown) for fastening or prestressing the bearing housing are arranged.
  • FIG. 14 shows a standard control unit for rolling or casting and rolling stands, which also include the control and adjustment of the casting gap using the adjustable means according to the invention.
  • the metal strip 104 of the roller system runs over deflection rollers through the work rollers 12, 14, which are each supported by a support roller 106.
  • scaffolds that are not prestressed or equipped with spacer plates cannot be operated with a control unit according to FIG. 14.
  • roll gap measuring device 110 strip thickness measuring device 111
  • strip speed measuring device 112 strip thickness control 113
  • roll gap control 114 position control 115
  • three-stage servo valve 116 pressure transmitter 117 (for hydraulic preloading), constant pressure control 118
  • Skin pass level control 119 with laser 120 strip thickness control by strip tension control 121
  • strip tension controller 122 tension measuring cell for strip tension 123
  • address, data and control bus 124 operating and display panel 125
  • central unit 126 arithmetic processor 127 and EPROM RAM 128.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Ladders (AREA)
  • Glass Compositions (AREA)
  • Lubricants (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Claims (9)

  1. Cage prétendue de laminoir ou de coulée continue de métaux sous forme de feuillard, avec un premier corps de palier (16) posé de manière fixe et un second corps de palier réglable (18) pour le réglage d'une ouverture de laminage (10), lesquels portent les coussinets des cylindres (12, 14), dans chacune des zones extérieures des faces frontales orientées l'une vers l'autre des corps de palier (16, 18) étant prévus des évidements (36) destinés à recevoir un dispositif de réglage (38, 40) de l'ouverture de laminage (10), caractérisé en ce que le dispositif de réglage (38,40) présente des moyens (38), disposés dans les uns évidements (36) opposés l'un à l'autre, destinés à former, entre le premier et le second corps de palier (16, 18), un axe de pivotement s'étendant parallèlement aux axes (44, 42) des cylindres (12, 14) et, dans les autres évidements (36) opposés l'un à l'autre, des moyens (40), destinés au pivotement du second corps de palier (18) autour de l'axe de pivotement (46), pour le réglage de l'ouverture de laminage.
  2. Cage suivant la revendication 1, caractérisée en ce que les moyens (38) de pivotement du second corps de palier (18) se présentent sous forme d'une charnière (74).
  3. Cage suivant la revendication 1, caractérisée en ce que les moyens (38) de pivotement du second corps de palier (18) se présentent sous forme de paliers de glissement (82) se trouvant l'un dans l'autre.
  4. Cage suivant l'une des revendications 1 à 3, caractérisée en ce que les moyens (40) de réglage de l'ouverture de laminage (10) sont des plaques d'écartement (50) échangeables, se présentant bombées au moins d'un côté, de préférence complétées par de minces plaquettes-calibres pour le réglage fin.
  5. Cage suivant l'une des revendications 1 à 3, caractérisée en ce que les moyens (40) de réglage de l'ouverture de laminage (10) sont des broches (92) ou des pistons (132) à commande hydraulique dans des corps de cylindre (130) à action tangentielle par rapport à l'axe de rotation (46) du second corps de palier (18).
  6. Cage suivant l'une des revendications 1 à 3, caractérisée en ce que les moyens (40) de réglage de l'ouverture de laminage (10) sont des coins échangeables disposés dans le sens des axes (42, 44) des cylindres (12, 14), de préférence des coins doubles (56) pouvant être actionnés par une broche à filets à pas de vis opposé.
  7. Cage suivant l'une des revendications 1 à 3, caractérisée en ce que les moyens (40) de réglage de l'ouverture de laminage (10) sont des éléments flexibles (98) produisant une contre-pression à la prétension qui, partiellement enfoncés, soulèvent le cylindre supérieur (14) en cas de décharge par rapport à la prétension.
  8. Cage suivant la revendication 7, caractérisée en ce que les éléments flexibles sont des éléments de ressort, des boîtes de mesure de force ou des éléments hydrauliques.
  9. Cage suivant l'une des revendications 5 à 8, caractérisée en ce que le dispositif de prétension (32) et/ou les moyens (40) de réglage de l'ouverture de laminage (10) et/ou les éléments flexibles (98) peuvent être contrôlés et commandés à l'aide d'enregistreurs de la trajectoire de l'ouverture de laminage et/ou d'un enregistrement de l'épaisseur du feuillard dans un circuit de réglage électronique.
EP88810556A 1987-08-26 1988-08-16 Cage de laminoir ou de coulée continue Expired - Lifetime EP0309394B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88810556T ATE82166T1 (de) 1987-08-26 1988-08-16 Geruest zum walzen bzw. walzgiessen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH327687 1987-08-26
CH3276/87 1987-08-26

Publications (2)

Publication Number Publication Date
EP0309394A1 EP0309394A1 (fr) 1989-03-29
EP0309394B1 true EP0309394B1 (fr) 1992-11-11

Family

ID=4252490

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810556A Expired - Lifetime EP0309394B1 (fr) 1987-08-26 1988-08-16 Cage de laminoir ou de coulée continue

Country Status (6)

Country Link
US (1) US4991420A (fr)
EP (1) EP0309394B1 (fr)
JP (1) JP3405985B2 (fr)
AT (1) ATE82166T1 (fr)
BR (1) BR8801799A (fr)
DE (1) DE3875900D1 (fr)

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US5518064A (en) * 1993-10-07 1996-05-21 Norandal, Usa Thin gauge roll casting method
AUPQ436399A0 (en) * 1999-12-01 1999-12-23 Bhp Steel (Jla) Pty Limited Hot rolling thin strip
US6209377B1 (en) 2000-02-16 2001-04-03 Morgan Construction Company Housingless roll stand
DE102007058729A1 (de) * 2007-08-07 2009-02-19 Sms Demag Ag Walzvorrichtung mit Verstellvorrichtung
US8152509B2 (en) * 2009-06-01 2012-04-10 Processing Technologies, Llc Gap adjusting mechanism for rolls on a roll stand used in the extrusion forming of a sheet product
DE102009039501A1 (de) * 2009-08-31 2011-03-03 Sms Siemag Ag Verfahren zur Einstellung der Walzen eines Walzgerüsts und Walzgerüst
NL2005046C2 (nl) * 2010-07-07 2012-01-10 Jean Henry Robert Madern Lagerbloksamenstel, alsmede walsinrichting voorzien van dergelijke lagerbloksamenstellen.
DE102011018874B3 (de) * 2011-04-28 2012-08-30 Saueressig Gmbh + Co. Kg Walzenanordnung mit einer Einrichtung zur Regelung des Walzenspaltes sowie Verfahren zur Regelung des Walzenspaltes in einer Walzenanordnung
CN103599944B (zh) * 2013-11-27 2015-06-17 太原科技大学 一种带材铸轧机机架的调控机构
GB201703644D0 (en) * 2017-03-07 2017-04-19 Elopak As Improvements in or relating to toller mounting arrangements
JP6710656B2 (ja) * 2017-06-02 2020-06-17 芝浦機械株式会社 薄膜部材成形装置および薄膜部材の成形方法
CN113020265A (zh) * 2021-03-02 2021-06-25 赣州逸豪新材料股份有限公司 一种铜箔生产用可调节加工厚度的压箔装置

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FR1314562A (fr) * 1961-12-01 1963-01-11 Spidem Ste Nle Laminoir précontraint à serrage inverse
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FR1439920A (fr) * 1965-02-26 1966-05-27 Spidem Ste Nle Cage pour laminage en continu de produits métallurgiques de faible largeur
GB1152518A (en) * 1966-11-08 1969-05-21 Hans Rainer Fernbach Improvements in Rolling Mills For Rolling Metal
AT280193B (de) * 1967-02-03 1970-04-10 Voest Ag Einrichtung zur Formgebung von Metallsträngen
DE1758398B2 (de) * 1968-05-24 1974-05-30 Demag Ag, 4100 Duisburg Vorrichtung zum Transportieren und/oder Richten von Metall-, insbesondere Stahlsträngen in Mehrstrang gieß anlagen
AT293319B (de) * 1969-04-23 1971-10-11 Voest Ag Einrichtung zur Formgebung von Metallsträngen
AT340082B (de) * 1975-10-29 1977-11-25 Voest Ag Strangfuhrung an einer stranggiessanlage
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CH662292A5 (de) * 1982-10-18 1987-09-30 Lauener W F Ag Vorrichtung zum herstellen von metallbaendern.
CH658209A5 (de) * 1982-10-18 1986-10-31 Alusuisse Einrichtung zum verstellen der groesse eines von zwei walzen gebildeten spaltes.
JPS59125204A (ja) * 1983-01-06 1984-07-19 Kobe Steel Ltd 片持式圧延機の圧下装置
US4660400A (en) * 1983-12-21 1987-04-28 Moskovsky Institut Stali I Splavov Pilger mill stand

Also Published As

Publication number Publication date
JP3405985B2 (ja) 2003-05-12
ATE82166T1 (de) 1992-11-15
EP0309394A1 (fr) 1989-03-29
US4991420A (en) 1991-02-12
DE3875900D1 (de) 1992-12-17
JPS6471509A (en) 1989-03-16
BR8801799A (pt) 1989-03-21

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