EP0535767A1 - Rolling train for rolling section beams - Google Patents
Rolling train for rolling section beams Download PDFInfo
- Publication number
- EP0535767A1 EP0535767A1 EP92250251A EP92250251A EP0535767A1 EP 0535767 A1 EP0535767 A1 EP 0535767A1 EP 92250251 A EP92250251 A EP 92250251A EP 92250251 A EP92250251 A EP 92250251A EP 0535767 A1 EP0535767 A1 EP 0535767A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rolling
- universal
- stand
- reversing
- sizing
- 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
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 33
- 238000004513 sizing Methods 0.000 claims abstract description 17
- 230000002441 reversible effect Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000009499 grossing Methods 0.000 claims description 6
- 230000008901 benefit Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000007688 edging Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/088—H- or I-sections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/14—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel in a non-continuous process, i.e. at least one reversing stand
Definitions
- the invention relates to a rolling mill for rolling carrier profiles, consisting of at least one duo-reversing roughing stand and several subsequent universal stands for work and finish rolling, two universal stands and an upsetting stand being combined to form a reversing tandem group.
- a shaped steel rolling mill with a duo reversing roughing stand and a universal tandem swaging stand combined into a reversing tandem group is known, as well as a universal finishing stand provided on the output side.
- the shaped steel rolling mill shown in FIG. 1 of this document provides for a pre-weighing in the duo reversing roughing mill in seven to fifteen passes before the carrier preform is passed on to the reversing tandem mill group.
- the desired profile is largely approximated by repeated rolling in three or five passes and after the last pass into a finished stand introduced after the carrier flanges have been brought to the exact nominal width in an upstream flange upsetting stand.
- the final universal finish stitch processes the wearer in its final shape.
- the European patent 02 56 409 wants to improve this state of the art, which is described as complex, and proposes to integrate the universal finishing stand into the reversing tandem stand group. At the same time, it is intended to roll the carrier profile alternately in H-shape and X-shape by appropriately designing the rollers of the universal work stand and the universal finishing stand, the last stitch being rolled in H-shape.
- the vertical rollers of the universal work stand are slightly double-conical, while the universal finishing stand is equipped with cylindrical vertical rolls.
- the state of the art specifies the recommended kneading of the flange root area as an advantage of this roller design and procedure.
- the proposed stand arrangement for the rolling process on this rolling mill reduces the investment outlay of the rolling mill compared to the prior art by dispensing with a universal finishing stand and an upsetting stand.
- the universal finishing stand is always involved in the deformation of the carrier during the reversing stitches in the reversing tandem group and is therefore subject to the same wear and tear as the universal working stand.
- the rollers of this universal finishing stand have to be changed frequently due to the wear to be expected if no losses in quality are to be accepted. This will give the stated benefit of the lower construction effort, because the cost savings due to the elimination of the separate finishing stand with associated compression stand are compensated for by the additional roller costs.
- the present invention is based on the object of creating a rolling train for rolling carrier profiles and a method for rolling these carrier profiles, with which high-quality carrier profiles with exact dimensions can be produced with relatively little investment.
- a sizing universal stand is arranged in direct connection to the tandem group, the reversible universal stands of the tandem group being provided with double-conical vertical rolls and the sizing universal stand provided for continuous rolling being provided with cylindrical vertical rolls.
- the invention thus moves the finished stitch of the rolled-out carrier as a smooth stitch into a separate sizing universal frame, which immediately follows the tandem group.
- This sizing stand is intended for continuous rolling and is opened in the tandem group during the reversing stitch.
- the rollers of the sizing universal stand are only turned on for the last smoothing stitch in order to carry out the smoothing stitch. In this way, wear in the sizing frame is minimized, while the universal frames of the reversible tandem group are both fully involved in the deformation as working frames.
- the carrier profile can be divided into several according to the inventive method successive rolling passes with the flanges always facing outwards and the facing flanges can be placed parallel in the last smoothing pass. This means that at the same time as the smoothing stitch in the sizing universal framework, the flanges are bent to the H cross-sectional shape with a slight decrease in stitch.
- the smooth stitch is preferably carried out with a stitch decrease of 5 to 20 percent.
- the advantage of the present invention is that, even if the reversing tandem group for reversing rolling of the carrier is followed by a shape-accurate sizing stand, and also if the construction effort compared to EP 02 56 409 B1 is increased, due to the achievable shape retention and the lower wear of the universal stand performing the final stitch, the rolling mill works more economically and achieves better final qualities.
- the sizing universal scaffolding which carries out only a small number of stitch approvals, can be carried out more easily than the universal working scaffolds.
- An additional compression frame, as in FIG. 1 described in EP 02 56 409 B1, is not required.
- the blocks coming from a furnace are pre-rolled in the duo reversing roughing stand 1, for example in seven passes, as is symbolically shown below the duo reversing roughing stand 1 using the arrows.
- the preformed support profile is then delivered to the reversing tandem scaffold group 2, which consists of the reversible universal work scaffold 3, which is also reversible Universal work scaffold 4 and the compression frame 5 arranged between them.
- the sizing frame 6 is arranged, which is also a universal frame, but is not reversible.
- the pre-rolled carrier profile first runs through the universal working scaffold 3, the upsetting scaffold 5 and then the universal working scaffold 4, then passes through the sizing scaffold 6 in continuous operation in order to perform a reversing stitch again to go through the universal work stand 4, the edging stand 5 and the universal work stand 3 in reverse order.
- the support profile passes through the universal work stand 3, the upsetting stand 5 and the universal work stand 4 and is finished-rolled in the sizing stand 6, which has meanwhile been adjusted to the final profile dimension.
- the flanges of the support profile in the universal work stands 3 and 4 are placed outside 7a and rolled as a so-called butterfly profile. Only in the last stitch within the sizing frame 6 are the flanges bent outwards placed in parallel, so that the H profile 7b is created. During the last passage through the reversing tandem scaffolding group 2, the deformation stitch on the second universal working scaffold 4 can be omitted, so that the penultimate stitch is an upsetting stitch on the upsetting frame 5.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
Description
Die Erfindung betrifft eine Walzstraße zum Walzen von Trägerprofilen, bestehend aus mindestens einem Duo-Reversier-Vorgerüst und mehreren nachfolgenden Universalgerüsten zur Arbeits- und fertigwalzung, wobei zwei Universalgerüste und ein Stauchgerüst zu einer Umkehr-Tandemgruppe zusammengestellt sind.The invention relates to a rolling mill for rolling carrier profiles, consisting of at least one duo-reversing roughing stand and several subsequent universal stands for work and finish rolling, two universal stands and an upsetting stand being combined to form a reversing tandem group.
Aus der europäischen Patentschrift 02 56 409 ist ein Formstahl-Walzwerk mit einem Duo-Umkehr-Vorgerüst und zur Umkehr-Tandemgruppe zusammengefaßten Universal-Arbeits- und Flanschen-Stauchgerüst, sowie einem ausgangsseitig vorgesehenen Universal-Fertiggerüst bekannt. Das in Figur 1 dieser Schrift dargestellte Formstahlwalzwerk sieht eine Vorwatzung in dem Duo-Umkehr-Vorwalzgerüst in sieben bis fünizehn Stichen vor, bevor der Träger-Vorformling an die Umkehr-Tandemgerüstgruppe weitergegeben wird. Durch wiederholtes Walzen in drei bzw. fünf Durchläufen wird das gewünschte Profil weitgehend angenähert und nach dem letzten Durchlauf in ein Fertig-Gerüst eingeführt, nachdem in einem vorgeschalteten Flanschen-Stauchgerüst die Trägerflansche auf die exakte Sollbreite gebracht worden sind. Der abschließende Universal-Fertigstich bearbeitet den Träger in seiner Endform.From the European patent specification 02 56 409 a shaped steel rolling mill with a duo reversing roughing stand and a universal tandem swaging stand combined into a reversing tandem group is known, as well as a universal finishing stand provided on the output side. The shaped steel rolling mill shown in FIG. 1 of this document provides for a pre-weighing in the duo reversing roughing mill in seven to fifteen passes before the carrier preform is passed on to the reversing tandem mill group. The desired profile is largely approximated by repeated rolling in three or five passes and after the last pass into a finished stand introduced after the carrier flanges have been brought to the exact nominal width in an upstream flange upsetting stand. The final universal finish stitch processes the wearer in its final shape.
Das europäische Patent 02 56 409 will diesen als aufwendig bezeichneten Stand der Technik verbessern und schlägt vor, das Universal-Fertiggerüst in die Umkehr-Tandemgerüstgruppe zu integrieren. Gleichzeitig ist vorgesehen, durch entsprechende Ausbildung der Walzen des Universal-Arbeitsgerüstes und des Universal-Fertiggerüstes das Trägerprofil abwechselnd in H-Form und X-Form zu walzen, wobei der letzte Stich in H-Form gewalzt wird. Die Vertikalwalzen des Universal-Arbeitsgerüstes sind zu diesem zweck leicht doppelkonisch ausgeführt, während das universal-Fertiggerüst mit zylinderformigen Vertikalwalzen ausgestattet ist. Der Stand der Technik gibt als Vorteil dieser Walzenausbildung und Verfahrensweise eine empfehlenswerte Durchknetung des Flanschwurzelbereiches an.The European patent 02 56 409 wants to improve this state of the art, which is described as complex, and proposes to integrate the universal finishing stand into the reversing tandem stand group. At the same time, it is intended to roll the carrier profile alternately in H-shape and X-shape by appropriately designing the rollers of the universal work stand and the universal finishing stand, the last stitch being rolled in H-shape. For this purpose, the vertical rollers of the universal work stand are slightly double-conical, while the universal finishing stand is equipped with cylindrical vertical rolls. The state of the art specifies the recommended kneading of the flange root area as an advantage of this roller design and procedure.
Die vorgeschlagene Gerüstanordnung für das Walzverfahren auf diesem Walzwerk reduziert zwar den Investitionsaufwand des Walzwerkes gegenüber dem Vorbekannten durch Verzicht auf ein Universal-Fertig- und ein Stauchgerüst. Gleichzeitig ergibt sich jedoch ein Nachteil dadurch, daß das Universal-Fertiggerüst während der Reversierstiche in der Umkehr-Tandemgruppe stets an der Verformung des Trägers beteiligt ist und somit dem gleichen Verschleiß unterliegt, wie das Universal-Arbeitsgerüst. Da das Universal-Fertiggerüst jedoch auch für den abschließenden Fertigstich eingesetzt wird, ist infolge des zu erwartenden Verschleißes, wenn keine- Qualitätseinbußen hingenommen werden sollen, mit einem haufigen Wechsel der Walzen dieses Universal-Fertiggerüstes zu rechnen. Dadurch wird der angegebene Vorteil des geringeren Bauaufwandes zunichte gemacht, weil die Kosteneinsparungen durch das entfallende separate Fertiggerüst mit zugeordnetem Stauchgerüst durch die zusätzlichen Walzenkosten kompensiert werden.The proposed stand arrangement for the rolling process on this rolling mill reduces the investment outlay of the rolling mill compared to the prior art by dispensing with a universal finishing stand and an upsetting stand. At the same time, however, there is a disadvantage in that the universal finishing stand is always involved in the deformation of the carrier during the reversing stitches in the reversing tandem group and is therefore subject to the same wear and tear as the universal working stand. However, since the universal finishing stand is also used for the final finish stitch, the rollers of this universal finishing stand have to be changed frequently due to the wear to be expected if no losses in quality are to be accepted. This will give the stated benefit of the lower construction effort, because the cost savings due to the elimination of the separate finishing stand with associated compression stand are compensated for by the additional roller costs.
Der vorliegenden Erfindung liegt ausgehend von dem geschilderten Stand der Technik die Aufgabe zugrunde, eine Walzstraße zum Walzen von Trägerprofilen und ein Verfahren zum Walzen dieser Trägerprofile zu schaffen, mit der bzw. dem mit relativ geringem Investitionsaufwand qualitativ hochwertige Tragerprofile mit exakten Abmessungen herstellbar sind.Based on the described prior art, the present invention is based on the object of creating a rolling train for rolling carrier profiles and a method for rolling these carrier profiles, with which high-quality carrier profiles with exact dimensions can be produced with relatively little investment.
Zur Lösung der Aufgabe wird erfindungsgemäß vorgeschlagen, daß in unmittelbarem Anschluß an die Tandemgruppe ein Sizing-Universalgerüst angeordnet ist, wobei die reversierbaren Universalgerüste der Tandemgruppe mit doppelkonischen Vertikalwalzen und das zur Durchlaufwalzung vorgesehene Sizing-Universalgerüst mit zylindrischen Vertikalwalzen versehen ist.To solve the problem it is proposed according to the invention that a sizing universal stand is arranged in direct connection to the tandem group, the reversible universal stands of the tandem group being provided with double-conical vertical rolls and the sizing universal stand provided for continuous rolling being provided with cylindrical vertical rolls.
In Abkehr von der Lehre der EP 02 56 409 B1 verlegt die Erfindung damit den Fertigstich des ausgewalzten Trägers als Glättstich in ein separates Sizing-Universalgerüst, welches der Tandemgruppe unmittelbar nachfolgt. Dieses Sizing-Gerüst ist zur Durchlaufwalzung vorgesehen und während des Reversierstiches in der Tandemgruppe geöffnet. Erst für den letzten Glättstich werden die Walzen des Sizing-Universalgerüstes angestellt, um den Glättstich durchzuführen. Auf diese Weise wird der Verschleiß im Sizing-Gerüst minimiert, während die Universalgerüste der reversierbaren Tandemgruppe beide als Arbeitsgerüste an der Verformung im vollen Umfang beteiligt sind. Da die Universalgerüste der Tandemgruppe mit doppelkonischen Vertikalwalzen versehen sind, kann nach dem erfindungsgemäßen Verfahren das Trägerprofil in mehreren aufeinanderfolgenden Walzstichen mit stets nach außen gestellten Flanschen ausgewalzt und können die nach außen gestellten Flansche in dem letzten Glättstich parallel gestellt werden. Das bedeutet, daß gleichzeitig mit dem Glättstich im Sizing-Universalgerüst bei einer geringen Stichabnahme die Flansche zur H-Querschnittsform auf gebogen werden. Vorzugsweise erfolgt der Glättstich bei einer Stichabnahme von 5 bis 20 Prozent.In a departure from the teaching of EP 02 56 409 B1, the invention thus moves the finished stitch of the rolled-out carrier as a smooth stitch into a separate sizing universal frame, which immediately follows the tandem group. This sizing stand is intended for continuous rolling and is opened in the tandem group during the reversing stitch. The rollers of the sizing universal stand are only turned on for the last smoothing stitch in order to carry out the smoothing stitch. In this way, wear in the sizing frame is minimized, while the universal frames of the reversible tandem group are both fully involved in the deformation as working frames. Since the universal stands of the tandem group are provided with double-conical vertical rollers, the carrier profile can be divided into several according to the inventive method successive rolling passes with the flanges always facing outwards and the facing flanges can be placed parallel in the last smoothing pass. This means that at the same time as the smoothing stitch in the sizing universal framework, the flanges are bent to the H cross-sectional shape with a slight decrease in stitch. The smooth stitch is preferably carried out with a stitch decrease of 5 to 20 percent.
Der Vorteil der vorliegenden Erfindung besteht darin, daß, auch wenn der Umkehr-Tandemgruppe zum reversierenden Walzen des Trägers ein formgenaues Sizing-Gerüst nachgeschaltet ist, und auch, wenn der Bauaufwand gegenüber der EP 02 56 409 B1 erhöht ist, infolge der erreichbaren Formhaltigkeit und des geringeren Verschleisses des den Endstich durchführenden Universalgerüstes das Walzwerk wirtschaftlicher arbeitet und bessere Endqualitäten erreicht. Das nur geringe Stichabnahmen ausführende Sizing-Universalgerüst kann dabei leichter ausgeführt werden als die Universal-Arbeitsgerüste. Ein zusätzliches Stauchgerüst, wie bei dem in der EP 02 56 409 B1 beschriebenen Figur 1 entfällt.The advantage of the present invention is that, even if the reversing tandem group for reversing rolling of the carrier is followed by a shape-accurate sizing stand, and also if the construction effort compared to EP 02 56 409 B1 is increased, due to the achievable shape retention and the lower wear of the universal stand performing the final stitch, the rolling mill works more economically and achieves better final qualities. The sizing universal scaffolding, which carries out only a small number of stitch approvals, can be carried out more easily than the universal working scaffolds. An additional compression frame, as in FIG. 1 described in EP 02 56 409 B1, is not required.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung schematisch dargestellt und wird nachfolgend beschrieben:
Die von einem Ofen kommenden Blöcke werden in dem Duo-Umkehr-Vorgerüst 1 beispielsweise in sieben Stichen vorgewalzt, wie unterhalb des Duo-Umkehr-Vorgerüstes 1 anhand der Pfeile symbolisch dargestellt ist. Im Anschluß daran wird das vorgeformte Trägerprofil an die Umkehr-Tandemgerüstgruppe 2 abgegeben, die aus dem reversierbaren Universal-Arbeitsgerüst 3, dem gleichfalls reversierbaren Universal-Arbeitsgerüst 4 und dem dazwischen angeordneten Stauchgerüst 5 besteht. Unmittelbar im Anschluß an die Umkehr-Tandemgruppe 2 ist das Sizing-Gerüst 6 angeordnet, welches ebenfalls ein Universalgerüst, jedoch nicht reversierbar ist. Das vorgewalzte Trägerprofil durchläuft, wie an den unterhalb der Umkehr-Tandemgerüstgruppe 2 dargestellten Pfeil erkennbar, zunächst das Universal-Arbeitsgerüst 3, das Stauchgerüst 5 und dann das Universalarbeitsgerüst 4, durchläuft sodann das aufgefahrene Sizing-Gerüst 6 im Durchlaufbetrieb, um in einem Reversierstich erneut in umgekehrter Reihenfolge das Universal-Arbeitsgerüst 4, das Stauchgerüst 5 und das Universal-Arbeitsgerüst 3 zu durchlaufen. Nach nochmaliger Richtungsumkehr durchläuft das Trägerprofil erneut das Universal-Arbeitsgerüst 3, das Stauchgerüst 5 und das Universal-Arbeitsgerüst 4 und wird in dem inzwischen auf Endprofilabmessung angestellten Sizing-Gerüst 6 fertiggewalzt. Wie unterhalb des Stichplanschemas bei 7 erkennbar, werden die Flansche des Trägerprofils in den Universal-Arbeitsgerüsten 3 und 4 nach außen 7a gestellt und als sogenanntes Schmetterlingsprofil gewalzt. Erst im letzten Stich innerhalb des Sizing-Gerüstes 6 werden die nach außen gebogenen Flansche parallel gestellt, so daß das H-Profil 7b entsteht. Beim letzten Durchgang durch die Umkehr-Tandemgerüstgruppe 2 kann der Verformungsstich auf dem zweiten Universal-Arbeitsgerüst 4 entfallen, so daß der vorletzte Stich ein Stauchstich auf dem Stauchgerüst 5 ist.An embodiment of the invention is shown schematically in the drawing and is described below:
The blocks coming from a furnace are pre-rolled in the duo reversing roughing stand 1, for example in seven passes, as is symbolically shown below the duo reversing roughing stand 1 using the arrows. The preformed support profile is then delivered to the reversing
Claims (3)
dadurch gekennzeichnet,
daß in unmittelbarem Anschluß an die Tandemgruppe (2) ein Sizing-Universalgerüst (6) angeordnet ist, wobei die reversierbaren Universalgerüste (3, 4) der Tandemgruppe (2) mit doppelkonischen Vertikalwalzen und das zur Durchlaufwalze vorgesehene Sizing-Universalgerüst (6) mit zylindrischen Vertikalwalzen versehen sind.Rolling mill for rolling carrier profiles, consisting of at least one duo-reversing roughing stand and several subsequent universal stands for working and finishing rolling, two universal stands and one upsetting stand being combined to form a reversing tandem group,
characterized,
that a sizing universal stand (6) is arranged in direct connection to the tandem group (2), the reversible universal stands (3, 4) of the tandem group (2) with double-conical vertical rollers and the sizing universal stand (6) provided for the through-feed roller with cylindrical ones Vertical rollers are provided.
dadurch gekennzeichnet,
daß das Trägerprofil in mehreren aufeinanderfolgenden Walzstichen mit nach außen gestellten Flanschen ausgewalzt wird und die nach außen gestellten Flansche in einem letzten Glättstich parallel gestellt werden.Method for rolling carrier profiles on the rolling train according to claim 1,
characterized,
that the carrier profile is rolled out in several successive rolling passes with the flanges facing outwards and the facing flanges are placed parallel in a final smoothing pass.
dadurch gekennzeichnet,
daß der Glättstich bei einer Stichabnahme von 5 bis 20 % erfolgt.Method according to claim 2,
characterized,
that the smoothing stitch occurs with a stitch decrease of 5 to 20%.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4133072 | 1991-10-02 | ||
| DE4133072 | 1991-10-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0535767A1 true EP0535767A1 (en) | 1993-04-07 |
| EP0535767B1 EP0535767B1 (en) | 1996-02-07 |
Family
ID=6442120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92250251A Revoked EP0535767B1 (en) | 1991-10-02 | 1992-09-09 | Rolling train for rolling section beams |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5343726A (en) |
| EP (1) | EP0535767B1 (en) |
| JP (1) | JP3265002B2 (en) |
| DE (1) | DE59205292D1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995029774A1 (en) * | 1994-04-29 | 1995-11-09 | Mannesmann Ag | Process and device for rolling beams from preliminary sections |
| WO1996023608A1 (en) * | 1995-02-02 | 1996-08-08 | Bethlehem Steel Corporation | Method for producing flanged structural products directly from slabs |
| CN1082404C (en) * | 1996-07-13 | 2002-04-10 | Sms舒路曼-斯玛公司 | Method for rolling finished sections from a rough blank |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19714216A1 (en) * | 1997-04-07 | 1998-10-08 | Schloemann Siemag Ag | Rolling mill for rolling flat steel |
| DE19747656A1 (en) * | 1997-10-29 | 1999-05-12 | Schloemann Siemag Ag | Rolling system for rolling all types of finished profiles |
| DE10349950A1 (en) * | 2003-10-24 | 2005-05-25 | Sms Demag Ag | Rolling mill for warm rolling of metals, including a hot strip roll chain, and blooming and finishing roll chains useful in rolling Al |
| CN101214494B (en) * | 2007-12-29 | 2010-12-01 | 莱芜钢铁集团有限公司 | Technique for rolling figured steel for magnetic suspension train rail |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2844433A1 (en) * | 1978-10-12 | 1980-04-30 | Schloemann Siemag Ag | ROLLING MILL FOR ROLLING HEAVY CARRIER PROFILES AND RAILS |
| EP0348913A2 (en) * | 1988-06-27 | 1990-01-03 | Kawasaki Steel Corporation | Rolling method of H-shaped steels |
| EP0256409B1 (en) * | 1986-08-16 | 1990-09-26 | Sms Schloemann-Siemag Aktiengesellschaft | Method of producing sections |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1812248A (en) * | 1928-12-29 | 1931-06-30 | William C Oberg | Roll |
| US4366694A (en) * | 1980-09-17 | 1983-01-04 | Morgan Construction Company | Compact rolling mill |
| JPH0753283B2 (en) * | 1985-06-04 | 1995-06-07 | 住友金属工業株式会社 | Continuous rolling method |
| DE3730471A1 (en) * | 1987-09-11 | 1989-03-23 | Schloemann Siemag Ag | COMPACT ROLLING MILL AND WORKING METHOD FOR ROLLING MOLDED STEEL |
| JPH0289501A (en) * | 1988-09-27 | 1990-03-29 | Kawasaki Steel Corp | Rolling mill line |
-
1992
- 1992-09-09 EP EP92250251A patent/EP0535767B1/en not_active Revoked
- 1992-09-09 DE DE59205292T patent/DE59205292D1/en not_active Revoked
- 1992-10-02 JP JP28966392A patent/JP3265002B2/en not_active Expired - Fee Related
- 1992-10-02 US US07/956,719 patent/US5343726A/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2844433A1 (en) * | 1978-10-12 | 1980-04-30 | Schloemann Siemag Ag | ROLLING MILL FOR ROLLING HEAVY CARRIER PROFILES AND RAILS |
| EP0256409B1 (en) * | 1986-08-16 | 1990-09-26 | Sms Schloemann-Siemag Aktiengesellschaft | Method of producing sections |
| EP0348913A2 (en) * | 1988-06-27 | 1990-01-03 | Kawasaki Steel Corporation | Rolling method of H-shaped steels |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995029774A1 (en) * | 1994-04-29 | 1995-11-09 | Mannesmann Ag | Process and device for rolling beams from preliminary sections |
| WO1996023608A1 (en) * | 1995-02-02 | 1996-08-08 | Bethlehem Steel Corporation | Method for producing flanged structural products directly from slabs |
| CN1066353C (en) * | 1995-02-02 | 2001-05-30 | 伯利恒钢铁公司 | Method for producing flanged structural products directly from slabs |
| CN1082404C (en) * | 1996-07-13 | 2002-04-10 | Sms舒路曼-斯玛公司 | Method for rolling finished sections from a rough blank |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05200402A (en) | 1993-08-10 |
| EP0535767B1 (en) | 1996-02-07 |
| US5343726A (en) | 1994-09-06 |
| DE59205292D1 (en) | 1996-03-21 |
| JP3265002B2 (en) | 2002-03-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0256409B2 (en) | Method of producing sections | |
| EP0846503B1 (en) | Method for rolling finished sections from section blanks, by means of reversibly driven arrangements of roll stands | |
| DE3636478C2 (en) | Process for rolling finished profiles from a preliminary profile | |
| EP0653253B1 (en) | Method for rolling finished sections from section blanks by means of a reversibly driven arrangement of roll stands | |
| DE1452020A1 (en) | Process for rolling rail profiles | |
| EP0535767B1 (en) | Rolling train for rolling section beams | |
| DE3839151A1 (en) | METHOD FOR PRODUCING HOT-ROLLED STEEL STRIP FROM A STRIP-SHAPED PRE-MATERIAL | |
| EP0734792B1 (en) | Group of universal rolling stands and method for the rolling of continuously cast preliminary sections | |
| DE1427875A1 (en) | Rolling mill for rolling and method for producing profiles, such as double T-beams or the like. with thin wall thickness | |
| DE3410160A1 (en) | METHOD FOR THE INTEGRAL UNIVERSAL ROLLING OF METAL ROLLING PROFILES OF THE H OR I-CARRIER TYPE | |
| EP0757599B1 (en) | Process and device for rolling beams from preliminary sections | |
| EP0850701B1 (en) | Method and installation for producing bars with a refined and/or compressed structure by roll forging | |
| DE2524224A1 (en) | METHOD AND DEVICE FOR ROLLING BAR STEEL | |
| EP0870554B1 (en) | Rolling train for rolling flat steel | |
| EP0913210B1 (en) | Rolling installation for the rolling of all types of finished profiles | |
| DE2844438A1 (en) | ROLLING MILL FOR ROLLING HEAVY CARRIER PROFILES OR RAILS | |
| EP0890395A1 (en) | Method for casting and rolling and roll stand arrangement for rolling finished sections (sheet pile profiles) starting from a near net shape casted preliminary section | |
| EP0065533B1 (en) | Method for rolling a u-shaped steel bar or similar and beam-making universal mill train for implementing such method | |
| DE355588C (en) | Process for rolling wide and parallel flanged beams | |
| EP0272520A2 (en) | Method and reversing roll train for rolling, in particular sheet piles | |
| DE721478C (en) | Device for simultaneous bending back of the flanges or flange ends of double-T-shaped profile iron erected during the rolling process | |
| DE19743633A1 (en) | Method for rolling finished sections from preliminary sections | |
| DE19722732A1 (en) | Process for rolling steel profiles | |
| DE19614484A1 (en) | Procedure for manufacturing sheet piling from steel | |
| DE19650279A1 (en) | Method for rolling finished sections from preliminary sections |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT |
|
| 17P | Request for examination filed |
Effective date: 19930317 |
|
| 17Q | First examination report despatched |
Effective date: 19931022 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
| ET | Fr: translation filed | ||
| ITF | It: translation for a ep patent filed | ||
| REF | Corresponds to: |
Ref document number: 59205292 Country of ref document: DE Date of ref document: 19960321 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19960426 |
|
| PLBQ | Unpublished change to opponent data |
Free format text: ORIGINAL CODE: EPIDOS OPPO |
|
| PLBI | Opposition filed |
Free format text: ORIGINAL CODE: 0009260 |
|
| PLBF | Reply of patent proprietor to notice(s) of opposition |
Free format text: ORIGINAL CODE: EPIDOS OBSO |
|
| 26 | Opposition filed |
Opponent name: SMS SCHLOEMANN-SIEMAG AG Effective date: 19961107 |
|
| PLBF | Reply of patent proprietor to notice(s) of opposition |
Free format text: ORIGINAL CODE: EPIDOS OBSO |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19970811 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19970820 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19971013 Year of fee payment: 6 |
|
| RDAH | Patent revoked |
Free format text: ORIGINAL CODE: EPIDOS REVO |
|
| RDAG | Patent revoked |
Free format text: ORIGINAL CODE: 0009271 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: PATENT REVOKED |
|
| 27W | Patent revoked |
Effective date: 19980307 |
|
| GBPR | Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state |
Free format text: 980307 |