EP0707903B1 - Verfahren und Vorrichtung zum Vermeiden der Unparallelität von Trägerprofilen - Google Patents
Verfahren und Vorrichtung zum Vermeiden der Unparallelität von Trägerprofilen Download PDFInfo
- Publication number
- EP0707903B1 EP0707903B1 EP95250227A EP95250227A EP0707903B1 EP 0707903 B1 EP0707903 B1 EP 0707903B1 EP 95250227 A EP95250227 A EP 95250227A EP 95250227 A EP95250227 A EP 95250227A EP 0707903 B1 EP0707903 B1 EP 0707903B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coolant
- rolling
- nozzles
- web
- universal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 10
- 239000002826 coolant Substances 0.000 claims description 43
- 238000005096 rolling process Methods 0.000 claims description 27
- 239000007921 spray Substances 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 description 18
- 239000000498 cooling water Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
Definitions
- the invention relates to a method and a device to avoid that when rolling girders on universal girder lines occurring non-parallelism of the carrier profiles by partial loading of the carrier with coolant.
- Twisting of the parallel flanges is observed, this in the DIN standard as non-parallelism and is called wide top in English. Twisting the Beam profiles during cooling is by widening the top and one Contraction marked the lower flange halves and represents a general Problem. To a certain extent, the non-parallelism of the flanges in the downstream straightening machines are eliminated provided the introduction of the beam is possible in these machines.
- Cooling devices preferably behind the carrier line and used after the rolling process to influence the structure.
- Cooling units are known, with which a partial cooling of the flanges during the Rolling process can be carried out to the transition area between the web and flange with regard to the structural properties of the finished product influence (DE-OS 1452106).
- DE-A1-4009707 has disclosed a method for the thermal straightening of rolled special profiles, which is only used after the carrier has run out of the finishing stand.
- Spray devices in front of carrier lines are also known, which serve to remove the adhering scale.
- the resulting cooling effect is undesirable. It was recognized that the problem of non-parallelism of the rolled beams described at the outset is due to the fact that during the hot rolling of these beams in the universal stand or the universal stands, the roll cooling water continuously runs into the upper chamber of the horizontally rolled profile and there to one-sided cooling of the The top of the bridge leads. Since the lower chamber of the profile hardly comes into contact with roller cooling water, the carrier warps, which can reach such dimensions that it can only be fixed with difficulty in a downstream straightening machine.
- both the upper side of the web and the underside of the web are included Cooling water applied.
- the roller cooling water remains in the upper chamber, the disadvantages of warping the beam described above are not eliminated.
- the method proposed here differs from known methods in that it is used during the rolling process and is used for partial cooling of the underside of the web. This eliminates the asymmetrical temperature profile in the web, which is caused by the roller cooling water that has entered the upper carrier chamber in an uncontrolled manner. It has been recognized that a uniform temperature profile cannot be achieved by cooling once after the finish stitch, but must already take place in the preceding roll passes during rolling. If, as a result of the measures of the invention, the rolling stock has an approximately uniform web temperature when it emerges from the finishing stand and has a small temperature gradient over the web thickness, then it can be achieved that the flanges remain parallel during the subsequent cooling process.
- the cooling intensity is through Regulation of the coolant quantity and / or loading density depending on the temperature measured at the top and bottom of the web and from it calculated temperature difference regulated.
- the Surface temperatures on the top and bottom of the web with a Measuring device detected and fed to a computer system, which continuously the Temperature distribution in the rolling stock is determined and from this the time of connection of the coolant and the necessary water pressurization density in each Roll pass determined.
- a device for avoiding the rolling of girders on universal girder lines occurring non-parallelism of the carrier profiles due to partial causes the carrier to be charged with coolant characterized in that in or in the immediate vicinity of at least one universal rolling stand only in the area of the underside of the web of the beam and directed towards this Coolant nozzles are arranged.
- the arrangement of these nozzles can Cooling of the underside of the web in one or during the rolling process several stitches take place and thus a strong cooling off after exiting the finishing stand can be avoided, leading to the occurrence of cracks and warpage can lead.
- the continuous cooling via the coolant nozzles enables one targeted control of the uniformity of the temperature profile by a Cooling after the rolling process and the associated large Temperature gradients within the web cannot be reached.
- the coolant nozzles are preferably in the area of the reversing universal roll stands arranged. When rolling beams in continuous universal beam lines the coolant nozzles are conveniently located at several locations within the road arranged.
- the individual coolant nozzles can be switched on and off separately, so both the width of the cooling surface and the coolant loading density can be regulated.
- both coolant nozzles with a round or oval spray pattern can be used, as well as according to another feature Coolant nozzles with flat jet nozzles with a rotatable adjustment to the Carrier profile can be aligned.
- a coolant bar 1 is shown schematically below the roller table levels 9 a universal roll stand indicated at 10. It can be seen from FIG. that the coolant nozzles 8 are inclined towards the rolling direction 7 and thereby the Coolant flow directed against the rolling direction on the underside of the web is applied.
- the arrangement of two coolant nozzles 8 on the one designed as a tube Spray bar 1 is shown in Figure 3.
- the nozzle slots 11 can be rotated (in FIG 3 visible on the left), so that the width and coverage of each Coolant jets can be adapted to the chamber width of the carrier.
- From the View A (right half of Figure 3) shows that the coolant nozzles are offset are arranged to each other on the spray bar (water supply pipe) 1 and that Aim coolant at different angles ⁇ and ⁇ on the carrier. This will the largest possible coolant application area is set on the carrier and thus achieving an intensive cooling effect.
- FIGS. 4 to 6 beams 12, 13 and 14 of different width are in cross section shown.
- coolant nozzles 8 As shown on the spray bar 1 in Fig .1 are to cover the entire width of the web 15.
- a medium width beam 14 is with two Sprayed on coolant nozzle pairs, which corresponds to the spray bar 2 in Figure 1.
- flat jet nozzles with rotatable adjustment are used, which allow the cheapest adaptation to the width of the respective web 15.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Description
Es wurde erkannt, daß das eingangs geschilderte Problem der Unparallelität der gewalzten Träger seine Ursache darin hat, daß beim Warmwalzen dieser Träger in dem Universalgerüst bzw. den Universalgerüsten fortwährend das Walzenkühlwasser in die obere Kammer des liegend gewalzten Profils läuft und dort zu einer einseitigen Abkühlung der Stegoberseite führt. Da die untere Kammer des Profils kaum mit Walzenkühlwasser in Berührung kommt, entsteht ein Verzug des Trägers, der solche Ausmaße erreichen kann, daß er nur mit Schwierigkeiten in einer nachgeschalteten Richtmaschine behoben werden kann.
Das hier vorgeschlagene Verfahren unterscheidet sich also von bekannten Verfahren dadurch, daß es während des Walzvorganges eingesetzt und der partiellen Kühlung der Stegunterseite dient. Dadurch wird das asymmetrische Temperaturprofil im Steg beseitigt, das durch das unkontrolliert in die obere Trägerkammer gelangte Walzenkühlwasser hervorgerufen wird. Es wurde nämlich erkannt, daß ein gleichmäßiges Temperaturprofil nicht durch ein einmaliges Kühlen nach dem Fertigstich erreicht werden kann, sondern bereits in den davorliegenden Walzstichen während des Walzens erfolgen muß. Wenn durch die Maßnahmen der Erfindung das Walzgut beim Austritt aus dem Fertiggerüst eine annähernd gleichmäßige Stegtemperatur aufweist und einen geringen Temperaturgradienten über der Stegdicke besitzt, so kann damit erreicht werden, daß die Flansche beim anschließenden Abkühlvorgang parallel bleiben.
- Figur 1
- Die Anordnung der Kühlmitteldüsen auf Spritzbalken.
- Figur 2
- In einer Seitenansicht schematisch die Lage eines Spritzbalkens.
- Figur 3
- Die Anordnung zweier Kühlmitteldüsen auf dem Spritzbalken.
- Figuren 4 - 6
- Das Anspritzen der Stegunterseiten verschiedenbreiter Träger.
Claims (8)
- Verfahren zum Vermeiden der beim Walzen von Trägern auf Universal-Trägerstraßen auftretenden Unparallelität der Trägerprofile durch partielles Beaufschlagen der Träger mit Kühlmitteln,
dadurch gekennzeichnet,
daß zur Einstellung eines annähernd symmetrischen Temperaturprofils im Steg das Kühlmittel während des Walzprozesses ausschließlich auf die Stegunterseite aufgebracht wird und daß die Kühlmittelintensität durch Regelung der Kühlmittelmenge und/oder der Beaufschlagungsdichte in Abhängigkeit von der an der Ober- und Unterseite des Steges gemessenen Temperatur und der daraus berechneten Temperaturdifferenz geregelt wird. - Vorrichtung zum Vermeiden der beim Walzen von Trägern auf Universal-Trägerstraßen auftretenden Unparallelität der Trägerprofile durch partielles Beaufschlagen der Träger mit Kühlmitteln,
dadurch gekennzeichnet,
daß im oder in unmittelbarer Nähe mindestens eines Universalwalzgerüstes (10) ausschließlich im Bereich der Stegunterseite (15) des Trägers (12,13,14) und auf diese gerichtet Kühlmitteldüsen (8) angeordnet sind. - Vorrichtung nach Anspruch 2,
dadurch gekennzeichnet,
daß die Kühlmitteldüsen (8) im Bereich der reversierenden Universalwalzgerüste (8) angeordnet sind. - Vorrichtung nach Anspruch 2,
dadurch gekennzeichnet,
daß die Kühlmitteldüsen (8) an mehreren Stellen einer kontinuierlichen Universal-Trägerstraße angeordnet sind. - Vorrichtung nach Anspruch 2 bis 4,
dadurch gekennzeichnet,
daß die Kühlmitteldüsen (8) auf hintereinanderliegenden Spritzbalken (1,2,3) seitlich versetzt hintereinander und zur Walzrichtung (7) geneigt angeordnet sind. - Vorrichtung nach Anspruch 2 bis 5,
dadurch gekennzeichnet,
daß einzelne Kühlmitteldüsen (8) getrennt zu- und abschaltbar sind. - Vorrichtung nach Anspruch 2 bis 6,
dadurch gekennzeichnet,
daß Kühlmitteldüsen (8) mit runden oder ovalen Spritzbild einsetzbar sind. - Vorrichtung nach Anspruch 2 bis 6,
dadurch gekennzeichnet,
daß die Kühlmitteldüsen (8) Flachstrahldüsen mit drehbarer Verstellung sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4438822 | 1994-10-19 | ||
DE4438822A DE4438822A1 (de) | 1994-10-19 | 1994-10-19 | Verfahren und Vorrichtung zum Vermeiden der Unparallelität von Trägerprofilen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0707903A2 EP0707903A2 (de) | 1996-04-24 |
EP0707903A3 EP0707903A3 (de) | 1997-05-02 |
EP0707903B1 true EP0707903B1 (de) | 2001-07-25 |
Family
ID=6532107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95250227A Expired - Lifetime EP0707903B1 (de) | 1994-10-19 | 1995-09-18 | Verfahren und Vorrichtung zum Vermeiden der Unparallelität von Trägerprofilen |
Country Status (5)
Country | Link |
---|---|
US (1) | US5792418A (de) |
EP (1) | EP0707903B1 (de) |
CN (1) | CN1063988C (de) |
DE (2) | DE4438822A1 (de) |
TW (1) | TW283100B (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101767113B (zh) * | 2009-12-22 | 2012-09-05 | 马鞍山钢铁股份有限公司 | 热轧h型钢轧后控制冷却装置 |
CN102773271B (zh) * | 2012-06-12 | 2014-12-31 | 莱芜钢铁集团有限公司 | 一种热轧h型钢均温装置及均温方法 |
CN103357675B (zh) * | 2013-06-28 | 2016-06-29 | 中冶南方工程技术有限公司 | 热轧h型钢冷床气雾冷却方法及其装置 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2378044A (en) * | 1943-05-17 | 1945-06-12 | Ford Motor Co | Armor plate quenching |
US3151197A (en) * | 1962-12-05 | 1964-09-29 | United States Steel Corp | Apparatus for quenching rolled products |
DE1452106A1 (de) * | 1964-04-22 | 1969-05-08 | United Eng Foundry Co | Vorrichtung zur partiellen Kuehlung von Breitflanschtraegern in Traegertaschen |
US3738629A (en) * | 1971-03-04 | 1973-06-12 | Dorn Co V | Bar quench fixture |
BE837884A (fr) * | 1976-01-23 | 1976-05-14 | Centre Rech Metallurgique | Perfectionnements aux dispositifs de refroidissement des profiles metalliques |
US4149703A (en) * | 1978-01-31 | 1979-04-17 | Drever Company | Apparatus for quenching a heated metal plate |
JPS5848019B2 (ja) * | 1979-11-09 | 1983-10-26 | 石川島播磨重工業株式会社 | 鋼板の噴霧冷却方法及びその装置 |
US4318534A (en) * | 1980-10-09 | 1982-03-09 | Midland-Ross Corporation | Plate quench |
JPS6037857B2 (ja) * | 1981-11-28 | 1985-08-28 | 川崎製鉄株式会社 | 残留応力の少ないh形鋼の製造方法 |
CA1193176A (en) * | 1982-07-06 | 1985-09-10 | Robert J. Ackert | Method for the production of improved railway rails by accelerated colling in line with the production rolling mill |
BE899845A (fr) * | 1984-06-06 | 1984-10-01 | Centre Rech Metallurgique | Procede pour ameliorer la rectitude d'une palplanche. |
JPS6254519A (ja) * | 1985-09-03 | 1987-03-10 | Kawasaki Steel Corp | H形鋼の製造方法 |
JPS6462209A (en) * | 1987-08-31 | 1989-03-08 | Nippon Kokan Kk | Manufacture of high strength unequal side and unequal thickness steel shape |
DD288990A5 (de) * | 1989-11-16 | 1991-04-18 | ���@������������������`����Kk�� | Vorrichtung zur partiellen kuehlung zum thermischen richten von gewalzten sonderprofilen |
JPH04279211A (ja) * | 1991-03-05 | 1992-10-05 | Nippon Steel Corp | H形鋼上面の水切り方法および装置 |
FR2675718A1 (fr) * | 1991-04-29 | 1992-10-30 | Bertin & Cie | Procede et dispositif de refroidissement d'un profile en cours de laminage. |
US5284327A (en) * | 1992-04-29 | 1994-02-08 | Aluminum Company Of America | Extrusion quenching apparatus and related method |
JP3241444B2 (ja) * | 1992-08-10 | 2001-12-25 | 川崎製鉄株式会社 | 靱性・強度に富んだh形鋼の製造方法 |
-
1994
- 1994-10-19 DE DE4438822A patent/DE4438822A1/de not_active Withdrawn
-
1995
- 1995-07-20 TW TW084107516A patent/TW283100B/zh not_active IP Right Cessation
- 1995-09-18 CN CN95116293A patent/CN1063988C/zh not_active Expired - Fee Related
- 1995-09-18 EP EP95250227A patent/EP0707903B1/de not_active Expired - Lifetime
- 1995-09-18 DE DE59509444T patent/DE59509444D1/de not_active Expired - Lifetime
- 1995-10-19 US US08/547,704 patent/US5792418A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE4438822A1 (de) | 1996-04-25 |
US5792418A (en) | 1998-08-11 |
DE59509444D1 (de) | 2001-08-30 |
EP0707903A3 (de) | 1997-05-02 |
CN1120980A (zh) | 1996-04-24 |
TW283100B (de) | 1996-08-11 |
EP0707903A2 (de) | 1996-04-24 |
CN1063988C (zh) | 2001-04-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2155411B1 (de) | Vorrichtung zur beeinflussung der temperaturverteilung über der breite | |
EP2334452B1 (de) | Vorrichtung und verfahren zur sekundärkühlung in einer stranggiessanlage | |
EP2288458B1 (de) | Strangführungssegment | |
DE3201748A1 (de) | Stranggiess- und direktwalzvorrichtung | |
EP1018377A2 (de) | Verfahren und Vorrichtung zum Entzundern einer Oszillationsmarken aufweisenden Oberfläche eines Gussstranges aus einer Stranggiessanlage | |
EP2516079B1 (de) | Verfahren zum warmwalzen einer bramme und warmwalzwerk | |
EP2344287B1 (de) | Verfahren und vorrichtung zum kühlen eines vorbandes oder bandes eines metallstrangs in einem warmwalzwerk | |
DE10163070A1 (de) | Verfahren und Einrichtung zum kontrollierten Richten und Kühlen von aus einem Warmband-Walzwerk auslaufendem breiten Metallband, insbesondere von Stahlband oder Blech | |
DE60224211T2 (de) | Verfahren und vorrichtung zur kühlung von stahlplatten | |
WO2003012151A1 (de) | Verfahren zur kühlung von werkstücken insbesondere von profilwalzprodukten aus schienenstählen | |
DE102009012334B4 (de) | Verfahren zur Kühlmittelaufbringung auf einen gegossenen Metallstrang in einer Stranggießanlage und Stranggießanlage dazu | |
EP0028686B1 (de) | Vorrichtung zum Kühlen von insbesondere Block- und Knüppelsträngen | |
DE2651573C2 (de) | Verfahren und Vorrichtung zum Steuern einer Sekundärkühlung eines aus einer Stranggießkokille austretenden Stahlstrangs | |
DE102006043567A1 (de) | Spritzbalken einer hydraulischen Entzunderungsanlage und Verfahren zum Betreiben eines solchen Spritzbalkens | |
EP0707903B1 (de) | Verfahren und Vorrichtung zum Vermeiden der Unparallelität von Trägerprofilen | |
DE3537508C2 (de) | ||
DE2903608A1 (de) | Verfahren und vorrichtung zur beeinflussung der form eines strangquerschnittes in einer stranggiessanlage | |
EP3941655B1 (de) | Anlage und verfahren zur herstellung von metallischem warmband | |
EP0721813A1 (de) | Vorrichtung zum Führen von warmgewalztem Band durch einen Induktor | |
EP1827735B1 (de) | Verfahren und vorrichtung zum bandgiessen von metallen | |
EP0245722A2 (de) | Verfahren zum Besprühen von Strängen | |
DE4307464C2 (de) | CSP-Stranggießmaschine für die kontinuierliche Herstellung von Dünnbrammen aus Stahl | |
DE1508451A1 (de) | Verfahren und Vorrichtung zum Abschrecken | |
DE3141269C2 (de) | Kühlverfahren und Kühlvorrichtung für langgestrecktes heißes Metallgut, insbesondere für stranggegossene Knüppel- bzw. Vorblockstränge aus Stahl | |
DE102016216197A1 (de) | Düsenvorrichtung für ein Kühlmedium |
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: A2 Designated state(s): DE FR GB LU |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE FR GB LU |
|
17P | Request for examination filed |
Effective date: 19970526 |
|
17Q | First examination report despatched |
Effective date: 19990113 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SMS DEMAG AG |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
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 LU |
|
ET | Fr: translation filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 20010823 Year of fee payment: 7 |
|
REF | Corresponds to: |
Ref document number: 59509444 Country of ref document: DE Date of ref document: 20010830 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20010904 Year of fee payment: 7 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20010904 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020918 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030603 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20140922 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20140919 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 59509444 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 59509444 Country of ref document: DE Representative=s name: ANWALTSKANZLEI MEISSNER & MEISSNER, DE Ref country code: DE Ref legal event code: R081 Ref document number: 59509444 Country of ref document: DE Owner name: SMS GROUP GMBH, DE Free format text: FORMER OWNER: SMS SIEMAG AKTIENGESELLSCHAFT, 40237 DUESSELDORF, DE |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20150917 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20150917 |