EP0182922A1 - Procédé d'étirage droit de ronds et de tubes, ainsi que de profilé plein et creux, et installation à cet effet - Google Patents

Procédé d'étirage droit de ronds et de tubes, ainsi que de profilé plein et creux, et installation à cet effet Download PDF

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Publication number
EP0182922A1
EP0182922A1 EP84112638A EP84112638A EP0182922A1 EP 0182922 A1 EP0182922 A1 EP 0182922A1 EP 84112638 A EP84112638 A EP 84112638A EP 84112638 A EP84112638 A EP 84112638A EP 0182922 A1 EP0182922 A1 EP 0182922A1
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EP
European Patent Office
Prior art keywords
machine
machines
plant according
straight
guide
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.)
Granted
Application number
EP84112638A
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German (de)
English (en)
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EP0182922B1 (fr
Inventor
Karl-Heinz Komp
Bruno Walczak
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Schumag AG
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Schumag 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 Schumag AG filed Critical Schumag AG
Priority to DE8484112638T priority Critical patent/DE3480908D1/de
Priority to EP84112638A priority patent/EP0182922B1/fr
Priority to AT84112638T priority patent/ATE49144T1/de
Priority to JP60231419A priority patent/JPS6199515A/ja
Publication of EP0182922A1 publication Critical patent/EP0182922A1/fr
Priority to US07/085,275 priority patent/US4805434A/en
Application granted granted Critical
Publication of EP0182922B1 publication Critical patent/EP0182922B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C49/00—Devices for temporarily accumulating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
    • B21C1/20—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes from stock of essentially unlimited length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
    • B21C1/34—Guiding or supporting the material or mandrels

Definitions

  • the invention relates to a method for pulling straight elongated material prismatic cross-section with full or hollow cross-section to reduce the cross-section in at least two drawing stages, at least the second drawing stage being carried out on a drawing device with intermittently operating, linearly moving drawing slide, and a system for carrying out this method .
  • DE-PS 31 20 820 slide drawing machines for carrying out the above-mentioned method have become known and have proven themselves well in use. Such machines work in one step and are able to achieve a certain reduction in cross-section in one drawing step, depending on the ductility of the material to be drawn.
  • the pulling slides move back and forth in opposite directions. At the beginning of the pulling process, i.e. during the pulling process, the pull-in jaws are. a slide is closed exactly at the front dead center of this first slide. As a result, the material waiting to be pulled is pulled in smoothly during the subsequent forward stroke of this first slide.
  • the drawing material is rolled up with a radius that is suitable for the drawing material and, after complete application, is transported to the next drawing machine as a whole package of material, whereupon after threading the known and already described drawing process is repeated for the next reduction in cross section, etc. it is desirable to get by without this intermediate drum of the material to be drawn or at least with as few intermediate drum of the material to be drawn and to pass the material to be drawn directly from the drawing machine to the drawing machine.
  • this is not possible with such straight drawing machines, because - as just described, the drawing machine works in intermittent operation during the drawing-in process - thus forcing the material to be stopped, while the preceding drawing machine is in the middle of the work flow, thus forcing a continuous material transport.
  • the two pulling machines to be arranged one behind the other do not work at exactly the same speed of the mass flow of the material to be drawn, so that it is also not possible for this reason to couple straight pulling machines in series.
  • the intermediate drums of the material to be drawn which interrupt the actual drawing process, when such drawing is used machines necessary.
  • the invention is based on the object of proposing a method of the type described at the outset with which it is possible to connect straight-pulling machines in series and to avoid the previously required intermediate drums.
  • Another object of the invention is to propose a system suitable for carrying out the method.
  • the solution of the first-mentioned object is seen according to the invention in that the drawing material in front of a drawing device with intermittently working, linearly moving drawing carriage, insofar as this is not the first drawing device, is deflected out of the straight line as soon as the drawing device takes over the beginning of the drawing material Has.
  • This deflection of the drawing good from the straight line creates a buffer area for the movement of the drawing good, so that the preceding drawing machine, which works in the continuous drawing process, undisturbed the drawing good into the resulting sheet. can transport, while the following drawing machine can take over the incoming drawing material in intermittent operation during the start of drawing.
  • the further object underlying the invention for creating a system suitable for carrying out the method is achieved in that, viewed in the working direction, at least the second pulling device is one for pulling straight, at least two pulling devices of the system being connected to one another by means of a guide device for the drawn material which on the one hand introduces the drawing material into the drawing nozzle of the following machine and on the other hand deflects the drawing material from the straight flow direction.
  • a pulling device which is adjacent to a preceding pulling device can be connected directly to the preceding pulling device, so that the drawn material can be passed on from machine to machine with this guiding device and it is in the guiding device for the necessary deflection of the material the straight flow direction is ensured, whereby the necessary bow is made for buffering the drawn material.
  • an increase of the resulting sheet is effected by 'itself. Only an enlargement can be considered, because the drawing material is ejected faster from the preceding drawing device during the intermittent operation of the second drawing device than can be taken over by the second target device.
  • the guide device have a guide element and a deformation element, at least the deformation element being movably guided to carry out the deformation.
  • the guide element ensures the straight line execution, while the deformation element ensures the deflection from the straight flow direction.
  • the functions “guidance” and “deflection” can thus advantageously be separated.
  • the straight design is maintained as long as necessary and then, if necessary, the deformation is initiated by the independent deformation element.
  • a V-shaped channel as the guide element, the exit. connects a first machine to the input of a second machine, the channel having an interruption in its longitudinal course at at least one point and that a deformation element which is movable transversely to the course of the rime through its interruption is provided.
  • the V-shaped guide ring is a particularly simple guide element with a sufficiently safe function. It is easy to interrupt its longitudinal course without any loss of function, so that a deformation element which can be moved through this area can be provided in this area for deflecting the drawn material from the straight flow direction. It is particularly advantageous here if this deformation element is provided approximately in the middle of the distance between the two drawing machines. As a result, the force to be applied by the deformation element to the drawn material for the deformation can be kept small and there is a uniform deflection seen on both sides in the direction of flow.
  • the V-shaped channel is arranged to be movable in order to terminate the straight guidance of the drawing material before the deformation is initiated.
  • This simple means enables the radial plane in which the deformation is to be carried out to be selected independently of the angular position of the V-shaped channel. It then does not necessarily have to lie the radial deformation plane so that the drawing material is lifted out of the V-shaped channel by the deformation process, but rather the V-shaped channel can be movable so that it evades the deforming drawing material.
  • a supplementary embodiment of the invention provides that the. Gutter is lowered. This is an easy to design direction of movement of the channel.
  • the channel is arranged to be pivotable about an axis parallel to its course. This possibility of movement is also simple to design and allows the channel to dodge the desired direction of deformation of the drawing material.
  • a deflection slide is provided as the deformation element, which can be guided radially against the drawn material.
  • a deflection slide is easy to design and easy to move and can be non-positive and thus constantly desired Preload, be guided radially against the drawn material.
  • Preload be guided radially against the drawn material.
  • the deflection slide has a carrier connected to an actuating device and at least one contact element for acting on the drawn material.
  • This is also a particularly simple structure and it is possible to separate the elements which exert the movement and the force from the elements which come directly into contact with the drawing material, so that the latter can be adapted to the particular requirements of the drawing material in question without that all other assemblies or components would have to be changed at the same time.
  • At least one contact element is designed as a body which is rotationally symmetrical about at least one axis and is rotatably arranged on the carrier about at least this axis perpendicular to the tangent to the point of contact between the drawing material and the contact element.
  • This can be one or more rollers or wheels, which means that the bending radius of the drawing material can be influenced in a simple manner and that the axial movement is not impeded by unnecessarily large friction. In addition, the reduction in axial friction can have an adverse effect on the Surface fibers of the drawn material be avoided.
  • a fluid-operated piston-cylinder unit is provided as the actuating device. This is the easiest way to achieve a positive connection of the components that cause the drawing material to deflect from the straight line.
  • the guide device has counter-holding pieces in the area of the exit of a preceding machine and in the area of the entrance of a subsequent machine. This relieves the corresponding guide elements on the machines, which are arranged in the area of the exit and the entrance, and a smooth transition curve to the deflection curve, which also relieves the drawing material itself, can be created.
  • the guide device is designed as a circular guide, which takes over the drawing material running out of a first machine in the tangential direction and, after a deflection along a circular arc shape, introduces it tangentially into the subsequent machine.
  • this device it is possible to arrange successive machines parallel to one another, so that an adaptation to the respectively available spatial conditions is made possible at low cost. This is particularly advantageous if the deflection takes place along a circular arc shape by approximately 180 °.
  • multi-stage drawing processes it is then also possible to have a machine group consisting of several drawing operations first arrange machines one behind the other and then arrange further machines in parallel using a 180 ° deflection.
  • the deflection along an arc of a circle by approximately 180 ° is a particularly advantageous buffering because almost any speed differences between the two machines can be absorbed only by the fact that the arc as a whole moves further away from the two parallel machines or comes closer .
  • the arch itself can remain unchanged.
  • the guide device essentially consists of a central bearing, on which a boom is arranged so as to be pivotable about a vertical axis, the free end of the boom having a gripping device, suitable for taking over and transferring the drawing material, whereby two drawing machines to be connected to one another are arranged in such a way that their output or input lies in the effective range of the gripping device of the boom.
  • the desired deflection and thus the required buffer zone can be generated with relatively simple means.
  • the drawing machines are set up with a working direction running parallel to one another and that the guide device connecting them deflects the drawing material by approximately 180 °.
  • the boom can be driven in rotation via an associated drive.
  • This is not necessary for drawn material with a larger cross-section.
  • the boom itself which is centrally mounted and could also be designed as a wheel, for example, can then be driven by the working movement of the drawing material. With drawn material of smaller cross section, this leads to difficulties because the drawn material then buckles at undesired points.
  • the boom drive which rotates the boom synchronously with the speed of the drawing goods. must therefore ensure that the buckling at undesired points of the drawing material with a smaller cross section is prevented.
  • a system according to the invention is Darge represents, in which two drawing machines 1 are linked together by a guide device 2.
  • the working direction of the system assembled in this way is indicated by arrow 23.
  • the drawn material 7 is thus transported in the direction of arrow 23.
  • This is the drawing material. 7 processed, for example, in a first drawing stage by the drawing machine 1 arranged to the left of the guide device 2 using the straight-line drawing method and exits at the exit 12 of this drawing machine in a straight-line direction.
  • a bed 35 of the guide device 2 carries, aligned in the straight direction of the outflowing drawing material 7, a V-shaped channel 30 which, open at the top, is supported there.
  • an angle of 90 ° is chosen as the angle between the two legs of the channel.
  • the drawn material 7 can flow straight through this V-shaped channel and is guided by this channel straight ahead and threaded into the input 13 of the drawing machine 1 arranged on the right in the system.
  • a so-called. Angel is provided, which passes through the drawing nozzle 29, so that the drawing material 7 can first be taken over by the drawing carriage 22 on this conventional fishing rod.
  • the drawing carriage 22 must first follow up the drawing material in several steps already described at the beginning of the prior art, so that during the follow-up a complete standstill of the drawing material occurs in the right drawing machine 1.
  • the left-hand drawing machine of this system according to FIG. 1 continues to operate and so there would be no special measures for buckling and destruction of both the drawing good 7 and, as a result, at least the downstream drawing machine.
  • the guide device 2 eliminates this problem.
  • an interruption 31 is provided in the course of the V-shaped channel 30 approximately in the central region of the distance between the outlet 12 of the left machine and the inlet 13 of the right drawing machine.
  • the bed 35 has a cantilever 36 on which a deformation element 21 is arranged.
  • This deformation element 21 is displaceable on the upper bed level in the radial direction of the drawn material and can for example assume a position which is shown in broken lines in FIG. 1. If the deformation element 21 is displaced radially, the drawing material 7 is hereby correspondingly deformed, that is to say deflected from its straight direction.
  • the V-shaped channel 30 can be pivoted about an axis 32 (FIG. 2) in the arrangement described above, so that the V-shaped channel 30 intended as a guide a deflection of the drawn material 7 is no longer an obstacle.
  • the deformation element 21 is moved radially against the drawing material 7 with the necessary force.
  • This force can be generated, for example, by a fluid-actuated piston-cylinder unit 19 (FIG. 2), which moves the deformation element 21 with the necessary force when switched appropriately in the direction of arrow 37 and vice versa.
  • the force of the piston-cylinder unit 19 is dimensioned here in such a way that, although it causes deflection of the drawing material, the drawing process itself is not adversely affected thereby.
  • the piston-cylinder unit 19 is connected to a pump unit 38 or the tank 42 via the lines 40 and 41 and via the valve 39.
  • the piston-cylinder unit 19 is supplied with pressure medium by means of the pump unit 38 via the line 40, which ensures that the piston rod of the piston-cylinder unit extends and therefore a movement of the deformation element 21 in the direction of arrow 37 takes place because the piston rod of the piston-cylinder unit 19 is connected to the deformation element 21 in the manner shown in FIG. 2 or in another suitable manner.
  • the cylinder of the piston-cylinder unit is preferably supported on the bed 35 of the guide device 2.
  • the fluid displaced from the cylinder chamber on the piston rod side of the piston-cylinder unit 19 travels via the line 41 and again through the valve 39 into the tank 42.
  • a controllable counterpressure valve 43 can ensure that the piston of the piston-cylinder - Unit 19 hydraulically clamped remains.
  • a movement of the piston rod of the piston-cylinder unit 19 in the opposite direction is achieved in that the valve 39 is moved into the second switching position.
  • counter-holding pieces 17 and 18 can be provided in the areas mentioned, which have a specific and desired contour of the drawn item 7 enforce in this area.
  • the entire system 24 can also be equipped with a device 44 which checks the size of the radial deformation of the drawing material 7 and emits a corresponding signal. This makes it possible to regulate the working speeds of the drawing machines 1 of the system 24 as a function of the size of the radial deflection of the drawing material so that a trouble-free material flow is always guaranteed. Impermissible speed differences in the working speed of the machines in a system can be prevented.
  • the movements of the tappet 45 in the radial direction are measured by an electronic displacement transducer .47, for example in the form of a commercially available linear displacement transducer, the pulses from the displacement transducer 47 being sent to a computer 48 are forwarded, which in turn forwards its calculation results to a suitable display device 49.
  • the display device 49 can also be omitted and instead the values of the computer 48 of a control device suitable for this purpose are used to coordinate the working speeds of the drawing machines in a system. Since the structure of a control loop is fundamentally known, there is no need to go into this in detail.
  • a system 24 it is also possible in a system 24 to avoid the pivotability and also the pivoting of the V-shaped channel 30 by pivoting the bed 35 of the guide device 2 by 90 °. As shown in FIG. 1, so that the deformation element 21 then moves from is movable upwards and thus lifts the drawing material 7 out of the V-shaped groove '30, which is to maintain its position, when the deflection process is carried out. Depending on the angular design and angular position of the V-shaped channel 30, a swivel angle for the bed 35 of less than 90 ° is also sufficient for this purpose. Overall, the system 24 shows a functional interlinking of two pulling devices, of which at least the pulling device lying on the right in the working direction has one for straight ahead pull is.
  • FIG. 1 shows a system 25 according to FIG. 6 in succession, so that a system 25 according to FIG. 6 is created.
  • the system 25 according to FIG. 6 it is also entirely possible to use guide devices 2 according to FIG. 1.
  • slightly modified guide devices 3 have been used in the system 25 as interlinking means between the individual drawing machines 1.
  • Such a guide device 3 is shown more clearly in FIG. 3.
  • FIG. 3 shows a system of the structure according to FIG. 1, but with the modified guide device 3.
  • a support 33 can be displaced as a deformation element 20, in a manner similar to the deformation element 21, in the direction of arrow 55.
  • On the support 33 there are contact elements 34 along a circular line attached in the form of rotatable rollers. In the middle region, two rollers 34 are provided in an opposing arrangement, between which the drawing material 7 is passed.
  • the position I of the carrier 33 marks the starting position and the position II of the carrier 33 the permissible end position.
  • the counter-pieces 51 and 52 arranged on the bed 50 perform the same function as the counter-pieces 17 and 18 according to FIG. 1.
  • the counter-pieces 51 and 52 have elements, not shown in more detail, as elements for guiding the material to be drawn, in a similar arrangement to that Rollers 34 which are arranged on the carrier 33.
  • rollers 34 arranged on the carrier 33 could also be replaced by a wheel 53 (marked with a dashed line) which would be rotatably mounted on a correspondingly enlarged carrier 33 about the axis 54 (marked with a dashed line).
  • the entire guide device 3 described for FIG. 3 can also be constructed in the same way as the guide device 2 according to FIG. 1. It is therefore based on the detailed description, for example of the V-shaped channel 30 according to FIG. 1, which is also provided for a guide device according to FIG can, waives. The same applies to the possible pivoting position of the bed 50.
  • a guide device has the advantage that all guide elements for the drawing material 7 carry out a rolling movement, so that friction between the drawing material and the corresponding guide elements can be largely prevented.
  • FIGS. 4 and 5 Another structure of a guide device is represented by the guide device 4 according to FIGS. 4 and 5.
  • a guide device of this type makes it possible to link drawing machines 1 to one another, for example in a parallel arrangement.
  • a central bearing 8 is formed in the form of a column about a vertical axis 9 and a boom 5 is rotatably mounted on the column about the vertical axis 9.
  • the boom 5 is driven in rotation by a drive 6.
  • the boom 5 has a gripping device 11 at its free end 10.
  • the Gripping device 11 of the boom 5 grips the drawing material 7 emerging from the outlet 12 of a first drawing machine 1 and, due to its rotary movement about the vertical axis 9, leads round and circular.
  • the drawn material 7 enters the gripping device 11 of the boom 5 in the tangential direction 14 for its circular deflection.
  • a system 28 can be formed in which the individual drawing machines arranged parallel to one another can advantageously be arranged in such a way that their operating sides face each other, so that both machines can be operated by a single operator.
  • the circular deflection of the drawn material between the outlet and the inlet of the two machines of the system 28 is very easy to manufacture and very easy to control, because a higher working speed of the first machine is simply intercepted by an outward displacement of the circular arc of the drawn material 7 that links the two machines, as shown in FIG 4 is shown in dashed lines.
  • the circular arc shape of the drawing good 7, once produced, is maintained by a guide device 56 even if the circular arc of the drawn good 7 moves radially further outwards.
  • the drive 6 of the guide device 4 can be omitted, because the moving drawing material itself can drive the boom 5.
  • FIGS. 7 and 8 systems 26 and 27 are shown schematically, which make clear the different arrangements and linkages of the straight-pulling machines.
  • the two different guide devices 2 or 3 and 4 it is possible to link the individual drawing machines both in series one behind the other and in a parallel arrangement to one another or in parallel rows to one another.
  • FIG. 7 shows a system 26 which consists of two groups of three, of which two machines are arranged parallel to one another and two machines are arranged in series one behind the other.
  • This arrangement has the advantage that three machines can be operated by a single operator.
  • the system 26 thus makes it possible to operate six drawing machines with only two operators.
  • a guide device 4 and a guide device 3 or 2 are required for both groups.
  • FIG. 8 There are six machines in system 27. according to FIG. 8 chained together, which can also be operated by two operators.
  • the system 27 thus allows a six-stage drawing process to be carried out without interruption.
  • two drawing machines are linked together on the left side of FIG. 8 via a guide device 4, so that these two machines are arranged parallel to one another.
  • the working direction is as indicated by arrow 57 in FIG. 8.
  • the second machine which is linked in parallel, is followed in line by a further machine, which is connected in a straight-line manner to the preceding machine via a guide device 3.
  • the following drawing machine (fourth stage) is also linked to the preceding machine by means of a guide device 3.
  • this machine is connected as a fifth stage to another drawing machine in a parallel arrangement - which must therefore be linked to the previous machine via a guide device 4.
  • the sixth stage is followed by a straight-chained machine, which can therefore be chained to the preceding machine again with a guide device 3.
  • any number of straight drawing machines has been achieved to chain together so that they can work in succession without the drawing process having to be interrupted and at the same time it has been possible to design the type of chaining in such a way that all the machines can be arranged in an extremely space-saving manner, this favorable arrangement also allowing that multiple machines in a system can be operated by just one operator.
  • the method according to the invention as such can of course be used for all drawable cross sections of the drawn goods.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
EP84112638A 1984-10-19 1984-10-19 Procédé d'étirage droit de ronds et de tubes, ainsi que de profilé plein et creux, et installation à cet effet Expired - Lifetime EP0182922B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE8484112638T DE3480908D1 (de) 1984-10-19 1984-10-19 Verfahren zum geradeausziehen von rundmaterial und rohren sowie voll- und hohlprofil und anlage hierzu.
EP84112638A EP0182922B1 (fr) 1984-10-19 1984-10-19 Procédé d'étirage droit de ronds et de tubes, ainsi que de profilé plein et creux, et installation à cet effet
AT84112638T ATE49144T1 (de) 1984-10-19 1984-10-19 Verfahren zum geradeausziehen von rundmaterial und rohren sowie voll- und hohlprofil und anlage hierzu.
JP60231419A JPS6199515A (ja) 1984-10-19 1985-10-18 円形材料、管、中実な形材および中空形材を直線形で引抜き処理するための方法および装置
US07/085,275 US4805434A (en) 1984-10-19 1987-08-10 Method for straight-line drawing of round material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84112638A EP0182922B1 (fr) 1984-10-19 1984-10-19 Procédé d'étirage droit de ronds et de tubes, ainsi que de profilé plein et creux, et installation à cet effet

Publications (2)

Publication Number Publication Date
EP0182922A1 true EP0182922A1 (fr) 1986-06-04
EP0182922B1 EP0182922B1 (fr) 1990-01-03

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EP84112638A Expired - Lifetime EP0182922B1 (fr) 1984-10-19 1984-10-19 Procédé d'étirage droit de ronds et de tubes, ainsi que de profilé plein et creux, et installation à cet effet

Country Status (5)

Country Link
US (1) US4805434A (fr)
EP (1) EP0182922B1 (fr)
JP (1) JPS6199515A (fr)
AT (1) ATE49144T1 (fr)
DE (1) DE3480908D1 (fr)

Cited By (4)

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Publication number Priority date Publication date Assignee Title
US5533376A (en) * 1993-08-20 1996-07-09 Schumag Ag Method for preparing a tubular blank having a thick wall for a following cascade drawing operation
DE19544383C1 (de) * 1995-11-15 1997-04-10 Mannesmann Ag Verfahren und Vorrichtung zum Geradeausziehen und Einfädeln langen Ziehgutes in mehreren Schritten
US5855136A (en) * 1996-08-29 1999-01-05 Mannesmann Aktiengesellschaft Process and device for threading elongated metal workpieces, especially tubes, into a drawing apparatus
DE10122658C2 (de) * 2001-05-10 2003-05-28 Sms Meer Gmbh Zugeinheit zum Ziehen von langgestrecktem Material sowie Ziehstraße

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
DE19606298A1 (de) * 1996-02-08 1997-08-14 Mannesmann Ag Verfahren und Vorrichtung zum Kaltziehen von Rohren
DE102004061459A1 (de) 2004-10-06 2006-04-20 Schumag Ag Verfahren und Anlage zum Transportieren und Verbinden von Rohren entlang ihrer Längserstreckungsrichtung
US9676016B2 (en) * 2013-09-23 2017-06-13 Manchester Copper Products, Llc Systems and methods for drawing materials

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US5533376A (en) * 1993-08-20 1996-07-09 Schumag Ag Method for preparing a tubular blank having a thick wall for a following cascade drawing operation
DE19544383C1 (de) * 1995-11-15 1997-04-10 Mannesmann Ag Verfahren und Vorrichtung zum Geradeausziehen und Einfädeln langen Ziehgutes in mehreren Schritten
EP0774306A1 (fr) 1995-11-15 1997-05-21 MANNESMANN Aktiengesellschaft Procédé et dispositif d'étirage droit de matériau à étirer en plusieurs étapes
US5855136A (en) * 1996-08-29 1999-01-05 Mannesmann Aktiengesellschaft Process and device for threading elongated metal workpieces, especially tubes, into a drawing apparatus
EP0826438A3 (fr) * 1996-08-29 1999-03-24 MANNESMANN Aktiengesellschaft Procédé et dispositif pour l'enfilage de tuyaux dans un dispositif d'étirage
DE10122658C2 (de) * 2001-05-10 2003-05-28 Sms Meer Gmbh Zugeinheit zum Ziehen von langgestrecktem Material sowie Ziehstraße
US6688152B2 (en) 2001-05-10 2004-02-10 Sms Meer Gmbh Modular drawing apparatus and drawing

Also Published As

Publication number Publication date
EP0182922B1 (fr) 1990-01-03
US4805434A (en) 1989-02-21
JPS6199515A (ja) 1986-05-17
DE3480908D1 (de) 1990-02-08
ATE49144T1 (de) 1990-01-15

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