EP0272520A2 - Method and reversing roll train for rolling, in particular sheet piles - Google Patents

Method and reversing roll train for rolling, in particular sheet piles Download PDF

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Publication number
EP0272520A2
EP0272520A2 EP87118017A EP87118017A EP0272520A2 EP 0272520 A2 EP0272520 A2 EP 0272520A2 EP 87118017 A EP87118017 A EP 87118017A EP 87118017 A EP87118017 A EP 87118017A EP 0272520 A2 EP0272520 A2 EP 0272520A2
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EP
European Patent Office
Prior art keywords
rolling
stands
stand
universal
sheet piles
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.)
Ceased
Application number
EP87118017A
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German (de)
French (fr)
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EP0272520A3 (en
Inventor
Dietmar Kosak
Georg Engel
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SMS Siemag AG
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SMS Schloemann Siemag AG
Schloemann Siemag AG
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Publication date
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0272520A2 publication Critical patent/EP0272520A2/en
Publication of EP0272520A3 publication Critical patent/EP0272520A3/en
Ceased legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-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
    • B21B1/22Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-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
    • B21B1/08Metal-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 structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/082Piling sections having lateral edges specially adapted for interlocking with each other in order to build a wall

Definitions

  • the invention relates to a method for rolling shaped steel, in particular sheet piles, by successively rolling in successive calibers, at least two of which are combined in a common duo stand, and a reversing line for carrying out the method.
  • shaped steel such as sheet piles is rolled in successive calibers by caliber rolls. Of these calibres, two, at most three, can be provided in a roll set.
  • the width of the calibers already makes considerable roll lengths necessary, so that relatively large roll diameters are also required to achieve sufficient stability. Since at least ten, but usually larger numbers of calibres are generally required for roughing and finishing rolling, at least five reversible duo stands, which have the long and a large diameter, are required for a conventional reversing line for rolling sheet piles having roller sets are also relatively large because of this and are therefore expensive to design.
  • the invention is based on the object of reducing the outlay on scaffolding and associated roller tables, tractors and the like which is to be carried out for the generic rolling method and a reversing line suitable for carrying out the method.
  • the first of the usual closed calibers with the stands comprising them are replaced by preferably a universal stand, in which several in succession in the reversing process with further adjustment of both the horizontal and vertical rolls Stitches or a number of stitches are rolled.
  • a universal stand in which several in succession in the reversing process with further adjustment of both the horizontal and vertical rolls Stitches or a number of stitches are rolled.
  • a reversing line has proven itself, in which at least one universal stand and at least one compression stand assigned to the universal stand or stands are arranged in front of the remaining dual-mill stands with caliber. It has proven to be essential here to equip the universal stand and the upsetting stand with profiled rollers.
  • the vertical rollers are expediently equipped with an upper cylindrical region, from which the rollers reinforce downward, for example in a parabolic manner, while the horizontal rollers are profiled in the shape of an inverted W with emphasized outer leg ends.
  • the rollers of the edger are also advantageously profiled and have effective outer surfaces, in particular in the width regions of the bale ends of the horizontal rollers.
  • a reversing line is shown schematically, which in the rolling direction one after the other a universal stand 1, an upsetting stand 2 and, indicated by the division of the rolls by cross lines, two in the exemplary embodiment Contains three closed caliber duo mill stands 3 and 4 each.
  • the universal scaffold 1 in conjunction with the upsetting scaffold 2 replaces several heavy duo roughing stands that would otherwise be required at this point.
  • the top roller 5 profiled in the manner of an inverted W works into the slab 6.
  • the roll thickening 7 located in the central area of the bale will not yet touch the slab 6 at the first stitch, but at the end of the bale there are stressed roll bundles 8 corresponding to the free legs of the "W" in the slab.
  • the lower roller 9 is effective with two symmetrically arranged bundles 10, and the flanks are formed by the vertical rollers 11, which have a cylindrical bale in the upper region which widens parabolically downward to form a bundle 12.
  • the slab 6 is guided several times through the universal stand, with the rolls being set further against each other until the desired profile shape of the rolling stock is achieved with little stand, roll, roller table and cross tractor effort.
  • the slab 6 can here spread outward and outward in an uncontrolled manner. It is therefore expedient to carry out an upsetting stitch after one of the stitches of the universal stand, in which, owing to the shape of the upsetting rolls shown in broken-away half-section in FIG 5 and 11 of the universal stand 1 correspond, and which are therefore not accessible by its rolling.
  • An improved and defined design of the "fingers" in the lock areas of sheet piles is hereby achieved.
  • This closed caliber formed between work rolls 13 and 14 of the duo roll stand 3 can have, for example, the shape indicated in FIG. 4, which shows a broken-off half section of a length range of a roll set having a caliber.
  • the desired final profile is finally achieved by further rolling in closed calibres of the duo mill stands 3 and 4.
  • the invention is not limited to the arrangement of a single universal scaffold; there is also the possibility of replacing other of the previously usual caliber frames with another universal frame. It is only essential that the finish rolling takes place in the usual manner, for example in closed calibres, within narrow tolerances and thus a finished product kept in tight tolerances is obtained regardless of the wide adjustment range used for the pre-rolling.
  • the first runs of a slab 6 to be rolled into sheet piles are shown schematically on the basis of the sequence of FIGS. 5 to 10. 5, in particular the roller bundles 8 and 10 of the horizontal rollers 5 and 9 become effective in the first pass of a universal stand, and in the course of the further deformations by the passages No. 3 and No. 4 shown in FIGS. 6 and 7, the final profile, even if with an excessive thickness, already approximated.
  • the rolling stock 18 passes through the horizontal rollers 13 and 15 of an upsetting stand.
  • Roll bundles 14 roll a joint of the lock area of the sheet piles, which was already formed in the previous passes, and the areas adjoining the outside delimit the edge seams of the rolling stock formed in the previous passes, the so-called "fingers".
  • the roll stands cannot be built one behind the other in relatively short distances, as is forced in FIG. 1, since the roll stands are each assigned sufficiently long run-out roller tables. Often you will not assign long connecting roller tables to the stands, but arrange them, at least in part, parallel to each other, so that the length of the halls accommodating the rolling mill is saved, but tractors are required to move the rolling stock from one to the next, arranged in parallel Bring roller table. In addition to the saving of the scaffolding according to the invention, this also results in a corresponding saving in the built-up base area and in the associated roller tables and tractors.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

For rolling sections, in particular sheet piles, there are customarily provided a number of stands having in each case a plurality of groove openings. The number of these stands can be reduced and thus the outlay lowered considerably if, for example, the first two or first three groove stands, customarily constructed as heavy roughing stands, are replaced by one universal stand 1, expediently additionally with an assigned edger 2. The essential first forming of the slab can then take place in reversing operation in this one universal stand with correspondingly formed roll barrels and any uncontrolled lateral edge seam occurring can be kept to a minimum by the edger. …<IMAGE>…

Description

Die Erfindung betrifft ein Verfahren zum Walzen von Form­stahl, inbesondere von Spundbohlen, durch nacheinander er­folgendes Walzen in aufeinanderfolgenden Kalibern, von denen jeweils mindestens zwei in einem gemeinsamen Duo-Gerüst zusammengefaßt sind, sowie eine Reversierstraße zur Durch­führung des Verfahrens.The invention relates to a method for rolling shaped steel, in particular sheet piles, by successively rolling in successive calibers, at least two of which are combined in a common duo stand, and a reversing line for carrying out the method.

Üblicherweise wird Formstahl wie bspw. Spundbohlen in auf­einanderfolgenden Kalibern von Kaliberwalzen gewalzt. Von diesen Kalibern können zwei, höchstens drei, in einem Wal­zensatz vorgesehen sein. Die Breite der Kaliber macht hier­bei schon erhebliche Walzenlängen erforderlich, so daß zur Erzielung einer ausreichenden Stabilität derselben auch relativ große Walzendurchmesser erforderlich werden. Da zum Vor- und Fertigwalzen im allgemeinen mindestens zehn, meist aber größere Anzahlen von Kalibern erforderlich sind, sind für eine übliche Reversierstraße zum Walzen von Spundbohlen mindestens fünf reversierbare, mit entsprechenden geschlos­senen Kalibern versehene Duo-Gerüste erforderlich, welche der langen und einen groß Durchmesser aufweisenden Walzen­sätze wegen auch relativ groß und damit aufwendig auszu­legen sind.Usually, shaped steel such as sheet piles is rolled in successive calibers by caliber rolls. Of these calibres, two, at most three, can be provided in a roll set. The width of the calibers already makes considerable roll lengths necessary, so that relatively large roll diameters are also required to achieve sufficient stability. Since at least ten, but usually larger numbers of calibres are generally required for roughing and finishing rolling, at least five reversible duo stands, which have the long and a large diameter, are required for a conventional reversing line for rolling sheet piles having roller sets are also relatively large because of this and are therefore expensive to design.

Die Erfindung geht von der Aufgabe aus, den für das gat­tungsgemäße Walzverfahren sowie eine zur Durchführung des Verfahrens geeignete Reversierstraße zu treibenden Aufwand an Gerüsten und zugeordneten Rollgängen, Querschleppern und dergleichen abzusenken.The invention is based on the object of reducing the outlay on scaffolding and associated roller tables, tractors and the like which is to be carried out for the generic rolling method and a reversing line suitable for carrying out the method.

Gelöst wird diese Aufgabe mit den Merkmalen des Patentan­spruches 1. Nach diesen Merkmalen werden die ersten der üblichen geschlossenen Kaliber mit den sie aufweisenden Gerüsten durch vorzugsweise ein Universalgerüst ersetzt, in dem nacheinander im Reversierverfahren unter jeweils weite­rem Anstellen sowohl der Horizontal- als auch der Vertikal­walzen mehrere Stiche bzw. eine Anzahl von Stichen gewalzt­werden. Damit wird in diesem ersten Gerüst mit kaliberartig profilierten Walzen eine Walz- und Formarbeit geleistet, welche der von bspw. drei bis acht üblichen geschlossenen Kalibern entspricht, und dementsprechend werden durch das eine Universalgerüst mindestens zwei, wenn nicht drei schwe­re, mit geschlossenen Kalibern versehene Duo-Walzgerüste ebenso ersetzt wie die diese verbindenden Auslauf-Rollgänge sowie gegebenenfalls von einem Rollgang zum nächsten füh­rende Querschlepper.This object is achieved with the features of claim 1. According to these features, the first of the usual closed calibers with the stands comprising them are replaced by preferably a universal stand, in which several in succession in the reversing process with further adjustment of both the horizontal and vertical rolls Stitches or a number of stitches are rolled. This means that in this first stand with caliber-like profiled rolls, rolling and shaping work is carried out, which corresponds to that of, for example, three to eight usual closed calibers, and accordingly, the one universal stand provides at least two, if not three heavy, closed-caliber duos -Rooms as well as the outlet roller tables connecting them and, if necessary, from one roller table to the next traverse tractor.

Bewährt hat es sich, zwischen Stichen eines Universalwalzge­rüstes mindestens einen Stauchstich zu bewirken, der beim Walzen von Spundbohlen deren Schloßbereiche weiter formt.It has proven useful to effect at least one compression stitch between passes of a universal rolling stand, which further forms their lock areas when sheet piles are rolled.

Zur Durchführung des Verfahrens hat sich eine Reversier­straße bewährt, bei der den verbleibenden, Kaliber aufwei­senden Duo-Walzgerüsten mindestens ein Universalgerüst sowie mindestens ein dem Universalgerüst bzw. den Universalgerü­sten zugeordnetes Stauchgerüst vorgeordnet sind. Als we­sentlich hat es sich hierbei erwiesen, Universalgerüst sowie Stauchgerüst mit profilierten Walzen auszustatten. Hierbei werden zweckmäßig die Vertikalwalzen mit einem oberen zy­lindrischen Bereich ausgestattet, von dem aus nach unten die Walzen sich bspw. parabelartig verstärken, während die Ho­rizontalwalzen etwa in Form eines umgekehrten W mit betonten äußeren Schenkelenden profiliert sind. Zweckmäßig sind auch die Walzen des Stauchers profiliert und weisen insbesondere im Breitenbereiche der Ballenenden der Horizontalwalzen wirksame Mantelflächen auf.For the implementation of the method, a reversing line has proven itself, in which at least one universal stand and at least one compression stand assigned to the universal stand or stands are arranged in front of the remaining dual-mill stands with caliber. It has proven to be essential here to equip the universal stand and the upsetting stand with profiled rollers. Here the vertical rollers are expediently equipped with an upper cylindrical region, from which the rollers reinforce downward, for example in a parabolic manner, while the horizontal rollers are profiled in the shape of an inverted W with emphasized outer leg ends. The rollers of the edger are also advantageously profiled and have effective outer surfaces, in particular in the width regions of the bale ends of the horizontal rollers.

Im einzelnen sind die Merkmale der Erfindung anhand der Beschreibung eines Ausführungsbeispieles in Verbindung mit dieses darstellenden Zeichnungen erläutert. Es zeigen hier­bei:

  • Figur 1 schematisch eine Reversierstraße,
  • Figur 2 jeweils hältfig Profilformen der formenden Mantel­bereiche der Walzen eines Universalgerüstes mit von diesem gewalzten Walzgut,
  • Figur 3 eine entsprechende Ansicht der Walzen eines Stauch­gerüstes,
  • Figur 4 ein anschließendes geschlossenes Kaliber eines fol­genden Duo-Walztgerüstes,
  • Figuren 5 bis 7 schematisch drei aufeinanderfolgende Stiche eines Universalgerüstes,
  • Figur 8 einen Stich eines Stauchgerüstes, und
  • Figuren 9 und 10 folgende Stiche des Universalgerüstes.
The features of the invention are explained in detail on the basis of the description of an exemplary embodiment in conjunction with the drawings which illustrate the same. They show:
  • FIG. 1 shows schematically a reversing line,
  • FIG. 2 each has profile shapes of the shaping jacket areas of the rolls of a universal stand with rolling stock rolled by the latter,
  • FIG. 3 shows a corresponding view of the rolls of an upsetting stand,
  • FIG. 4 shows a subsequent closed caliber of a following duo mill stand,
  • FIGS. 5 to 7 schematically show three successive stitches of a universal framework,
  • 8 shows a stitch of a compression frame, and
  • Figures 9 and 10 following stitches of the universal framework.

In der Fig. 1 ist der Einfachheit halber unter Verkürzung der Rollgänge und unter Fortlassen der gegebenenfalls erfor­derlichen Querschlepper schematisch eine Reversierstraße aufgezeigt, die in Walzrichtung hintereinander ein Univer­salgerüst 1, ein Stauchgerüst 2 und, durch die Unterteilung der Walzen durch Querstriche angedeutet, im Ausführungsbei­spiel zwei je drei geschlossene Kaliber aufweisende Duo-­Walzgerüste 3 und 4 enthält. Das Universalgerüst 1 in Ver­bindung mit dem Stauchgerüst 2 ersetzt hierbei mehrere sonst an dieser Stelle benötigte schwere Duo-Vorgerüste.In Fig. 1, for the sake of simplicity, shortening the roller tables and omitting the tractors that may be required, a reversing line is shown schematically, which in the rolling direction one after the other a universal stand 1, an upsetting stand 2 and, indicated by the division of the rolls by cross lines, two in the exemplary embodiment Contains three closed caliber duo mill stands 3 and 4 each. The universal scaffold 1 in conjunction with the upsetting scaffold 2 replaces several heavy duo roughing stands that would otherwise be required at this point.

Dem in fig. 2 im abgebrochenen Halbschnitt seiner Walzen dargestellte, zunächst relativ weit geöffneten Universalge­rüst 1 wird das zu walzende Profil, eine Bramme 6, zuge­führt. Hierbei arbeitet sich die nach Art eines umgekehrten W profilierte Oberwalze 5 in die Bramme 6 ein. Im einzelnen wird die im mitteleren Bereich des Ballens befindliche Wal­zenverdickung 7 beim, ersten Stich die Bramme 6 noch nicht berühren, wohl aber dringen am Ballenende Befindliche, im Querschnitt den freien Schenkeln des "W" entsprechende be­tonte Walzenbunde 8 in die Bramme ein. Die Unterwalze 9 wird mit zwei symmetrisch vorgesehenen Bunden 10 wirksam, und die Flanken werden durch die Vertikalwalzen 11 geformt, die im oberen Bereich einen zylindrischen Ballen aufweisen, der sich nach unten parabelförmig zu einem Bund 12 erwei­tert. So wird im Reversierbetrieb die Bramme 6 mehrfach durch das Universalgerüst geführt, wobei bei jedem Durch­lauf die Walzen weiter gegeneinander angestellt werden, bis die gewünschte Profilform des Walzgutes mit geringem Ge­rüst-, Walzen-, Rollgangs-, und Querschlepperaufwand erreicht ist.The one in fig. 2 shown in the broken half section of its rollers, initially relatively wide open universal stand 1, the profile to be rolled, a slab 6, is fed. Here, the top roller 5 profiled in the manner of an inverted W works into the slab 6. In detail, the roll thickening 7 located in the central area of the bale will not yet touch the slab 6 at the first stitch, but at the end of the bale there are stressed roll bundles 8 corresponding to the free legs of the "W" in the slab. The lower roller 9 is effective with two symmetrically arranged bundles 10, and the flanks are formed by the vertical rollers 11, which have a cylindrical bale in the upper region which widens parabolically downward to form a bundle 12. Thus, in the reversing mode, the slab 6 is guided several times through the universal stand, with the rolls being set further against each other until the desired profile shape of the rolling stock is achieved with little stand, roll, roller table and cross tractor effort.

Da zwischen dem Ballen der Vertikalwalzen 11 mit ihren Bun­den 12 und dem Ballen der Horizontalwalze 5, insbesondere deren Walzenbunden 8, ein freier Raum vorgesehen ist, kann die Bramme 6 sich hier gegebenenfalls unkontrolliert nach oben-außen ausbreiten. Es wird daher nach einem der Stiche des Universalgerüstes zweckmäßig ein Stauchstich durchge­führt, bei dem, bedingt durch die Gestalt der in Fig. 3 im abgebrochenen Halbschnitt dargestellten Stauchwalzen, ins­besondere jene Bereiche des Walzgutes 18 bzw. des Vorpro­files reduziert werden, die den Zwischenräumen der Walzen 5 und 11 des Universalgerüstes 1 entsprechen, und die daher durch dessen Walzen nicht erreichbar sind. Hiermit wird eine verbesserte und definierte Ausbildung der "Finger" in den Schloßbereichen von Spundbohlen erreicht.Since a free space is provided between the bale of the vertical rolls 11 with their bundles 12 and the bale of the horizontal roll 5, in particular their roll bundles 8, the slab 6 can here spread outward and outward in an uncontrolled manner. It is therefore expedient to carry out an upsetting stitch after one of the stitches of the universal stand, in which, owing to the shape of the upsetting rolls shown in broken-away half-section in FIG 5 and 11 of the universal stand 1 correspond, and which are therefore not accessible by its rolling. An improved and defined design of the "fingers" in the lock areas of sheet piles is hereby achieved.

Nach mehreren Stichen des Universalgerüstes wird das durch diese bewirkte Vorprofil dem ersten der folgenden geschlos­senen Kaliber der Duo-Walzgerüste 3 und 4 zugeführt. Dieses zwischen Arbeitswalzen 13 and 14 des Duo-Walzgerüstes 3 gebildete geschlossene Kaliber kann bspw. jene Form aufwei­sen, die in der Fig. 4 angedeutet ist, welche einen abgebro­chenen Halbschnitt eines ein Kaliber aufweisenden Längenbe­reiches eines Walzensatzes zeigt. Durch weiteres Walzen in geschlossenen Kalibern der Duo-Walzgerüste 3 und 4 wird schließlich das gewünschte Endprofil erreicht.After several passes of the universal stand, the pre-profile caused by it is fed to the first of the following closed calibers of the duo roll stands 3 and 4. This closed caliber formed between work rolls 13 and 14 of the duo roll stand 3 can have, for example, the shape indicated in FIG. 4, which shows a broken-off half section of a length range of a roll set having a caliber. The desired final profile is finally achieved by further rolling in closed calibres of the duo mill stands 3 and 4.

Es wurde zwar bereits, bspw. in Nippon Steel News, unter "Nippon Steel's Rolling Technology" empfohlen, für Form­stahl, Flachprodukte und Draht Universal-Walzgerüste einzu­setzen, und für das Walzen von Spundbohlen waren Plastilin-­Modellversuche erwähnt. Hierbei wurden jedoch die Universal­gerüste nicht für das Vorwalzen, sondern vielmehr für das Fertigwalzen eingesetzt. Die Erfindung jedoch bezieht sich auf das Vorwalzen: Nach ihr sollen mehrere schwere Vorge­ rüste einer Reversierstraße durch ein Universalgerüst, ge­gebenenfalls zwei Universalgerüste, ersetzt werden. Beim Vorwalzen ergibt sich die Möglichkeit, einen weiten Anstell­bereich für eine relativ große Anzahl von Stichen auf dem Universalgerüst zu benutzen, so daß dieses sich voll ausnut­zen läßt und es erlaubt, eine relativ hohe Anzahl der bisher benutzten Kaliber und damit mehrere schwere Vorgerüste durch das eine Universalgerüst zu ersetzen. Die Erfindung ist allerdings nicht auf das Anordnen eines einzigen Universal­gerüstes beschränkt; es besteht auch die Möglichkeit, weite­re der bisher üblichen Kalibergerüste durch ein weiteres Universalgerüst zu ersetzen. Wesentlich ist nur, daß die Fertigwalzung in der üblichen Weise, bspw. in geschlossenen Kalibern, innerhalb enger Tolerierung erfolgt und damit unabhängig vom beim Vorwalzen genutzten weiten Anstellbe­reich ein in engen Toleranzen gehaltenes Fertigprodukt erhalten wird.Although it has already been recommended, for example in Nippon Steel News, under "Nippon Steel's Rolling Technology" to use universal roll stands for shaped steel, flat products and wire, and plasticine model tests were mentioned for the rolling of sheet piles. Here, however, the universal stands were not used for roughing, but rather for finish rolling. The invention, however, relates to roughing: According to it, several heavy roughing of a reversing line can be replaced by a universal scaffold, possibly two universal scaffolds. When roughing, there is the possibility of using a wide setting range for a relatively large number of stitches on the universal stand, so that this can be fully exploited and allows a relatively large number of the previously used calibers and thus several heavy roughing stands through one Universal scaffold to replace. However, the invention is not limited to the arrangement of a single universal scaffold; there is also the possibility of replacing other of the previously usual caliber frames with another universal frame. It is only essential that the finish rolling takes place in the usual manner, for example in closed calibres, within narrow tolerances and thus a finished product kept in tight tolerances is obtained regardless of the wide adjustment range used for the pre-rolling.

Zur Erleichterung der Übersicht sind die ersten Durchläufe einer zur Spundbohle zu walzenden Bramme 6 schematisch an­hand der Folge der Figuren 5 bis 10 dargestellt. Nach Fig. 5 werden im ersten Stiche eines Universalgerüstes insbesondere die Walzenbunde 8 und 10 der Horizontalwalzen 5 und 9 wirk­sam, und im Zuge der weiteren Verformungen durch die in Figuren 6 und 7 dargestellten Stiche Nr. 3 und Nr. 4 wird das endgültige Profil, wenn auch mit noch überstarker Dicke, bereits angenähert.To facilitate the overview, the first runs of a slab 6 to be rolled into sheet piles are shown schematically on the basis of the sequence of FIGS. 5 to 10. 5, in particular the roller bundles 8 and 10 of the horizontal rollers 5 and 9 become effective in the first pass of a universal stand, and in the course of the further deformations by the passages No. 3 and No. 4 shown in FIGS. 6 and 7, the final profile, even if with an excessive thickness, already approximated.

In einem vierten Stich passiert das Walzgut 18 die Horizon­talwalzen 13 und 15 eines Stauchgerüstes. Walzenbunde 14 walzen eine schon in den vorhergehenden Stichen vorgebildete Fuge des Schloßbereiches der Spundbohlen tiefer aus, und die nach außen anschließenden Bereiche begrenzen die in den vorhergehenden Stichen gebildeten Randsäume des Walzgutes, die sogenannten "Finger".In a fourth pass, the rolling stock 18 passes through the horizontal rollers 13 and 15 of an upsetting stand. Roll bundles 14 roll a joint of the lock area of the sheet piles, which was already formed in the previous passes, and the areas adjoining the outside delimit the edge seams of the rolling stock formed in the previous passes, the so-called "fingers".

Die in den Fig. 9 und 10 veranschaulichten weiteren Stiche des Universalgerüstes reduzieren die Dicke des Walzgutes weiterhin energisch bis zum Eintritt in folgende, hier nicht dargestellte Kalibergerüste.The further stitches of the universal stand illustrated in FIGS. 9 and 10 further reduce the thickness of the rolling stock vigorously until it enters the following caliber stands, not shown here.

In der Praxis kann man die Walzgerüste nicht, wie in Fig. 1 gezwigt, in relativ kurzen Distanzen hintereinander auf­bauen, da den Gerüsten jeweils ausreichend lange Auslauf­rollgänge zuzuordnen sind. Oft wird man den Gerüsten nicht entsprechend lange verbindende Rollgänge zuordnen, sondern diese, mindestens zum Teil, parallel nebeneinander anordnen, so daß an Länge der das Walzwerk aufnehmenden Hallen gespart wird, jedoch Querschlepper erforderlich werden, um das Walz­gut von einem zum nächsten, parallel angeordneten Rollgang zu bringen. Zusätzlich zu der erfindungsgemäßen Einsparen der Gerüste ergibt sich hierbei auch eine entsprechende Ersparnis an überbauter Grundfläche sowie an den zugehörigen Rollgängen und Querschleppern.In practice, the roll stands cannot be built one behind the other in relatively short distances, as is forced in FIG. 1, since the roll stands are each assigned sufficiently long run-out roller tables. Often you will not assign long connecting roller tables to the stands, but arrange them, at least in part, parallel to each other, so that the length of the halls accommodating the rolling mill is saved, but tractors are required to move the rolling stock from one to the next, arranged in parallel Bring roller table. In addition to the saving of the scaffolding according to the invention, this also results in a corresponding saving in the built-up base area and in the associated roller tables and tractors.

Claims (6)

1. Verfahren zum Walzen von Formstahl, insbesondere von Spundbohlen, durch nacheinander erfolgendes Walzen in aufeinanderfolgenden Kalibern, von denen jeweils minde­stens zwei in einem gemeinsamen Duo-Gerüst zusammengefaßt sind,
gekennzeichnet durch
ein Vorwalzen in mehreren Stichen in mindestens einem Universalgerüst, das bzw. die nach jedem Stich weiter angestellt werden, und durch ein Fertigwalzen in an sich bekannter Art in Kalibern folgender Gerüste.
1. A method for rolling shaped steel, in particular sheet piles, by successively rolling in successive calibers, at least two of which are combined in a common duo stand,
marked by
a pre-rolling in several passes in at least one universal stand, which is continued after each pass, and by finish-rolling in a manner known per se in the following stands.
2. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß zwischen den in Universalgerüsten bewirkten Stichen mindestens ein beim Walzen von Spundbohlen in deren Schloßbereich formender Stauchstich bewirkt wird.
2. The method according to claim 1,
characterized,
that between the stitches caused in universal stands, at least one compression stitch is formed when sheet piles are rolled in their lock area.
3. Reversierstraße zur Durchführung des Verfahrens nach Anspruch 1 oder 2 zum Walzen von Formstahl, insbesondere von Spundbohlen, mit mit Kaliberwalzen ausgestatteten Duo-Walzgerüsten,
gekennzeichnet durch
mindestens ein den Kaliberwalzen aufweisenden Duo-Walzge­rüsten (3, 4) vorgeordnetes Universalgerüst (1) sowie ein dem bzw. einem der Universalgerüste zugeordnetes Stauch­gerüst (2).
3. reversing line for carrying out the method according to claim 1 or 2 for rolling shaped steel, in particular sheet piles, with duo-roll stands equipped with caliber rolls,
marked by
at least one universal rolling stand (1) arranged in front of the caliber rolls (3, 4) and one compression stand (2) assigned to the or one of the universal stands.
4. Reversierstraße nach Ansprüchen 1 bis 3,
dadurch gekennzeichnet,
daß das bzw. die Universalgerüste (1) sowie das bzw. die Stauchgerüste (2) profilierte Walzen (5, 9, 11, 13, 15) aufweisen.
4. reversing line according to claims 1 to 3,
characterized,
that the universal stand (1) and the compression stand (2) have profiled rollers (5, 9, 11, 13, 15).
5. Reversierstraße nach eine der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß die Vertikalwalzen (11) der Universalgerüste (1) im oberen Bereich zylinderförmig gestaltet sind und sich nach unten parabelartig zu einem Bunde (12) verstärken, und daß die Horizontalwalzen (5, 9) angenähert in Form eines umgekehrten W mit betonten äußeren Schenkelenden profiliert sind.
5. reversing line according to one of claims 1 to 4,
characterized,
that the vertical rollers (11) of the universal stands (1) are cylindrical in the upper region and reinforce downwards in a parabolic manner to form a bundle (12), and that the horizontal rollers (5, 9) are profiled approximately in the form of an inverted W with emphasized outer leg ends are.
6. Reversierstraße nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß das Stauchgerüst (2) Horizontalwalzen (13, 15) auf­weist, welche im wesentlichen im Bereiche ihrer Ballen­enden mit wirksamen Mantelflächen ausgestattet sind, welche beim Walzen von Spundbohlen in deren Schloßbe­reichen wirksam sind.
6. reversing line according to one of claims 1 to 5,
characterized,
that the upsetting frame (2) has horizontal rollers (13, 15) which are equipped with effective jacket surfaces essentially in the area of their bale ends, which are effective in the rolling of sheet piles in their lock areas.
EP87118017A 1986-12-24 1987-12-05 Method and reversing roll train for rolling, in particular sheet piles Ceased EP0272520A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3644353 1986-12-24
DE3644353 1986-12-24

Publications (2)

Publication Number Publication Date
EP0272520A2 true EP0272520A2 (en) 1988-06-29
EP0272520A3 EP0272520A3 (en) 1988-11-09

Family

ID=6317138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87118017A Ceased EP0272520A3 (en) 1986-12-24 1987-12-05 Method and reversing roll train for rolling, in particular sheet piles

Country Status (5)

Country Link
US (1) US4920777A (en)
EP (1) EP0272520A3 (en)
JP (1) JPS63199002A (en)
KR (1) KR880007140A (en)
CN (1) CN1014683B (en)

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Publication number Priority date Publication date Assignee Title
DE19650279A1 (en) * 1996-12-04 1998-07-30 Schloemann Siemag Ag Method for rolling finished sections from preliminary sections

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101214599B (en) * 2008-01-14 2010-11-03 扬州诚德钢管有限公司 Bulb steel production technique
WO2010009751A1 (en) * 2008-07-24 2010-01-28 Welser Profile Ag Method for production of a profile with at least one thickened profile edge
CN101956389B (en) * 2010-05-31 2011-05-25 南京万汇钢板桩有限公司 Omega-shaped corner pile and continuous roll type cold bending formation method thereof

Citations (3)

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Publication number Priority date Publication date Assignee Title
GB2018656A (en) * 1978-03-29 1979-10-24 Nippon Steel Corp Method for rolling flanged steel sections
DE2855287A1 (en) * 1978-12-21 1980-07-03 Schloemann Siemag Ag METHOD FOR ROLLING SHEET WALL PROFILES OF VARIOUS CROSS-SECTIONS IN UNIVERSAL-CARRIER ROLLING MILLS AND ARRANGEMENTS FOR IMPLEMENTING THE METHOD
DE3100199A1 (en) * 1981-01-07 1982-08-05 Sack GmbH, 4000 Düsseldorf Reversing edging stand for rolling rails

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US410107A (en) * 1889-08-27 Art of rolling flanged beams
FR2515538B1 (en) * 1981-11-04 1985-05-17 Sacilor
FR2543027B1 (en) * 1983-03-21 1986-05-16 Sacilor PROCESS OF INTEGRAL UNIVERSAL LAMINATION OF METAL PROFILES OF THE POUTRELLE H OR I TYPE

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
GB2018656A (en) * 1978-03-29 1979-10-24 Nippon Steel Corp Method for rolling flanged steel sections
DE2855287A1 (en) * 1978-12-21 1980-07-03 Schloemann Siemag Ag METHOD FOR ROLLING SHEET WALL PROFILES OF VARIOUS CROSS-SECTIONS IN UNIVERSAL-CARRIER ROLLING MILLS AND ARRANGEMENTS FOR IMPLEMENTING THE METHOD
DE3100199A1 (en) * 1981-01-07 1982-08-05 Sack GmbH, 4000 Düsseldorf Reversing edging stand for rolling rails

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19650279A1 (en) * 1996-12-04 1998-07-30 Schloemann Siemag Ag Method for rolling finished sections from preliminary sections

Also Published As

Publication number Publication date
CN1014683B (en) 1991-11-13
EP0272520A3 (en) 1988-11-09
JPS63199002A (en) 1988-08-17
US4920777A (en) 1990-05-01
KR880007140A (en) 1988-08-26
CN87105960A (en) 1988-07-06

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