EP0249801A1 - Laminoir pour la fabrication d'un feuillard de laminage - Google Patents

Laminoir pour la fabrication d'un feuillard de laminage Download PDF

Info

Publication number
EP0249801A1
EP0249801A1 EP87108001A EP87108001A EP0249801A1 EP 0249801 A1 EP0249801 A1 EP 0249801A1 EP 87108001 A EP87108001 A EP 87108001A EP 87108001 A EP87108001 A EP 87108001A EP 0249801 A1 EP0249801 A1 EP 0249801A1
Authority
EP
European Patent Office
Prior art keywords
rolls
roll
rolling mill
course
sum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87108001A
Other languages
German (de)
English (en)
Other versions
EP0249801B1 (fr
Inventor
Hugo Dr. Feldmann
Tilmann Dr. Schultes
Gerd Dr. Beisemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann Siemag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to AT87108001T priority Critical patent/ATE51774T1/de
Publication of EP0249801A1 publication Critical patent/EP0249801A1/fr
Application granted granted Critical
Publication of EP0249801B1 publication Critical patent/EP0249801B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/142—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls by axially shifting the rolls, e.g. rolls with tapered ends or with a curved contour for continuously-variable crown CVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/147—Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working rolls

Definitions

  • the invention relates to a rolling mill for the production of a rolling stock, in particular a rolled strip, with work rolls, which are optionally supported on support rolls or on support rolls and intermediate support rolls, the work rolls and / or the support rolls and / or the intermediate rolls being arranged axially displaceably in the roll stand and are provided with a curved contour extending essentially over the entire length of the bale.
  • a rolling mill of conventional design in which the curved contour essentially consists of a convex and a concave area and the bale contours of the mutually supporting and interacting rolls in a certain relative axial position of the rolls to each other, namely complement each other by axially shifting the rollers.
  • This is not only intended to improve the uniformity of the pressure distribution over the contact length of two adjacent rolls, but also to increase the continuous mechanical influence on the shape of the roll gap.
  • the object of the present invention is a further improvement and simplification this known rolling mill mentioned above, in particular also with regard to a uniform pressure distribution over the contact length of the rolls and a design and maintenance of a specific press roll gap.
  • roller contours can very advantageously take into account all influences that arise during operation of the rolling mill, such as thermals, roll deflection, flattening, wear, etc., from the outset, that is, in the unloaded state, essentially in such a way that they are in the loaded state, that is, in the operation of the rolling mill be balanced.
  • the roller contours designed according to the invention are roller contours that do not complement one another in the initial state; but they only complement each other almost completely when they are under load, ie during the operation of the rolling mill, especially in the area of the strip width. As a result, an optimal pressure distribution over the entire contact length of the rollers is under achieved simultaneous maintenance of a predetermined roll gap.
  • the axial course of the sum of the roll bale diameters is composed in sections of various mathematical functions.
  • the sum of the roll bale diameters in a first section can follow the course of a parabolic curve, while the second middle section is designed as a sine curve and the third section is in turn a mirror image of the first section as a parabolic curve.
  • the axial course of the sum of the roll diameter as a sum, weighted average or as a linear combination of several mathematical functions.
  • the axial course of the sum of the roll diameter in each relative axial position of the rolls follows a function asymmetrical to the center of the roll.
  • the contour of the rolls in particular the work rolls, consists of a weakly convex and a strongly concave curved part, the course of which is composed of a polynomial function and an exponential function.
  • This roller shape is particularly suitable for compensating for the effects of very different temperature conditions or temperature fluctuations on the rollers and the roll gap.
  • the pressure rollers are axially displaceable only on one side of the rolling stock level. In this way, a height profile is superimposed Avoid course of the press roll gap and achieved a particularly uniform distribution of the stress over the contact length of the work rolls.
  • Fig. 1 two work rolls (10, 11) of a rolling mill are shown, the contours of which consist of a weakly convex part (12) and a strongly concavely curved part (13).
  • the course of these contours is composed of a polynomial function (convex part 12) and an eponential function (concave part 13).
  • the upper work roll (10) is shifted axially to the right relative to the lower work roll (11) from the central position by a predetermined amount (+ 100 mm).
  • the work rolls (10, 11) correspond to a pair of conventionally ground rolls with a parabolic crown, and the roll band (14) has a biconcave shape corresponding to the roll gap (15).
  • the upper work roll (10) is shifted axially to the left by the same amount (-100 mm) as in FIG. 1 compared to the lower work roll (11), but from the central position. Since the work rolls in Figures 1 and 2 shown in the drawing are identical, they have been given the same reference numerals.
  • a roll gap (16) is formed, which essentially gives the roll band (17) rectangular cross-sectional shape with diagonally opposite, slightly rounded outer edges.
  • Fig. 3 shows a rolling mill with two work rolls (18, 19) and two backup rolls (20, 21), wherein according to the invention the rolls (18) and (20) located above the plane of the rolled strip (22) are approximately bottle-shaped and opposite rollers (19, 21) located below the rolled strip (22) are axially displaceable.
  • the work roll (18) and the backup roll (20) are expediently arranged vertically one above the other - in the direction of the force flow (arrows 23, 24) - one behind the other.
  • the shape of the roll gap (25), specifically transverse to the rolling direction, can be influenced by the shape of the roll bales.
  • An increase in the respective local diameter (Di) of a roller locally reduces the height of the roller gap (25), the "penetration" of the individual rollers being different.
  • the roll gap shape is influenced by all roll diameter functions.
  • the penetration of the rollers is reduced by the direction cosine of the force flow compared to the rollers according to FIG. 3.
  • Decisive for the roll gap here is again the sum effect mentioned above in connection with the description of FIG. 3. Since the two support rollers (28, 29) have the same passage through the roll gap in the case of a symmetrical arrangement, in contrast to the rolling mill according to FIG. 3, a symmetrical influence on the roll gap shape can be achieved with the same roll shapes.
  • a rolling mill with six rolls can also be useful, as shown in FIG. 5, for a rolling mill with six rolls to have a mirror image or symmetrical arrangement of the working rolls (35, 36) and the support rolls (37) interacting with the work rolls in relation to the plane of the rolling band (34) , 38) or (39, 30) according to the invention.
  • the roll contours are designed according to the invention, and in each case there is only one axial displacement of one of the rolls, in particular work rolls, with respect to the other rolls on one side, i. H. provided on the upper or lower side of the rolled strip (34).
  • the arrangement of the rolls in a rolling mill with six rolls can also be carried out very advantageously in such a way that the work roll (41) below the roll band (42) is supported only by a support roll (43). while the work roll (44) located above the roll belt (42) is supported via an intermediate roll (45) and two support rolls (46, 47) interacting with the intermediate roll (45).
  • any number of other variants are possible, in particular also with regard to the arrangement of a plurality of backup rolls and intermediate rolls on one side or on both sides of the roll gap, with the same advantages as those described in connection with the rolling mills shown in the drawing figures.
  • the same also applies to any arrangement in multi-roll stands.
  • Corresponding contouring of the rollers according to the invention in such a way that the rollers complement one another in the loaded state and not in the unloaded state.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
  • Laminated Bodies (AREA)
EP87108001A 1986-06-16 1987-06-03 Laminoir pour la fabrication d'un feuillard de laminage Expired - Lifetime EP0249801B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87108001T ATE51774T1 (de) 1986-06-16 1987-06-03 Walzwerk zur herstellung eines walzbandes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3620197 1986-06-16
DE19863620197 DE3620197A1 (de) 1986-06-16 1986-06-16 Walzwerk zur herstellung eines walzgutes, insbesondere eines walzbandes

Publications (2)

Publication Number Publication Date
EP0249801A1 true EP0249801A1 (fr) 1987-12-23
EP0249801B1 EP0249801B1 (fr) 1990-04-11

Family

ID=6303100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87108001A Expired - Lifetime EP0249801B1 (fr) 1986-06-16 1987-06-03 Laminoir pour la fabrication d'un feuillard de laminage

Country Status (9)

Country Link
US (2) US4800742A (fr)
EP (1) EP0249801B1 (fr)
JP (1) JP2733836B2 (fr)
CN (1) CN1019456B (fr)
AT (1) ATE51774T1 (fr)
DE (2) DE3620197A1 (fr)
ES (1) ES2014009B3 (fr)
RU (1) RU1816235C (fr)
UA (1) UA12314A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001019544A1 (fr) * 1999-09-14 2001-03-22 Danieli & C. Officine Meccaniche S.P.A. Procede permettant de controler le profil d"une bande dans une cage de laminage pour bande et/ou feuille
WO2007144161A1 (fr) * 2006-06-14 2007-12-21 Siemens Vai Metals Technologies Gmbh & Co Cage de laminoir pour la fabrication de bande laminée ou de tôle
AT509107B1 (de) * 2009-12-10 2011-09-15 Siemens Vai Metals Tech Gmbh Walzgerüst zur herstellung von walzband
DE102016222987A1 (de) 2016-11-22 2018-05-24 Sms Group Gmbh Verfahren zum Schleifen der Kontur des Ballens einer Walze

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3712043C2 (de) * 1987-04-09 1995-04-13 Schloemann Siemag Ag Walzgerüst mit axial verschiebbaren Walzen
JPH03233586A (ja) * 1990-02-09 1991-10-17 Canon Inc 定着装置
US5174144A (en) † 1990-04-13 1992-12-29 Hitachi, Ltd. 4-high rolling mill
US5319430A (en) * 1993-01-04 1994-06-07 Xerox Corporation Fuser mechanism having crowned rolls
DE4409299A1 (de) * 1994-03-18 1995-09-21 Schloemann Siemag Ag Verfahren und Vorrichtung zum Walzen von Bändern
US5448901A (en) * 1994-05-03 1995-09-12 The University Of Toledo Method for controlling axial shifting of rolls
CN1082851C (zh) * 1994-07-08 2002-04-17 石川岛播磨重工业株式会社 兼用辊位移与辊弯曲的轧机和辊位移式轧机
US5728252A (en) * 1995-09-19 1998-03-17 Polaroid Corporation Method and apparatus for laminating image-bearing media
CN1062495C (zh) * 1995-11-10 2001-02-28 东北重型机械学院南校 一种轴向移动改变辊缝凸度并可变辊缝形状的轧辊辊型
DE19812263A1 (de) * 1998-03-20 1999-09-23 Schloemann Siemag Ag Walze für ein Walzgerüst
US5970771A (en) * 1998-07-10 1999-10-26 Danieli United Continuous spiral motion system for rolling mills
RU2146973C1 (ru) * 1998-07-27 2000-03-27 Акционерное общество "Новолипецкий металлургический комбинат" Узел валков прокатной клети листового стана
US6119500A (en) * 1999-05-20 2000-09-19 Danieli Corporation Inverse symmetrical variable crown roll and associated method
US6314776B1 (en) 2000-10-03 2001-11-13 Alcoa Inc. Sixth order actuator and mill set-up system for rolling mill profile and flatness control
DE10102821A1 (de) * 2001-01-23 2002-07-25 Sms Demag Ag Walzwerk zur Herstellung planer Walzbänder mit gewünschter Bandprofilüberhöhung
US20040154146A1 (en) * 2001-05-17 2004-08-12 Pruitt Paul R. Web spreader roll and methods for spreading webs of material
AT410765B (de) * 2001-09-12 2003-07-25 Voest Alpine Ind Anlagen Walzgerüst zur herstellung von walzband
JP4273454B2 (ja) 2003-06-27 2009-06-03 株式会社Ｉｈｉ 板圧延用シフトロールの形状決定方法
DE102004020132A1 (de) 2003-12-23 2005-07-28 Sms Demag Ag Verfahren und Walzgerüst zur mehrfachen Profilbeeinflussung
JP4960009B2 (ja) 2006-05-09 2012-06-27 スチールプランテック株式会社 圧延ロール、圧延機および圧延方法
CN101293261B (zh) * 2007-04-24 2010-08-11 宝山钢铁股份有限公司 一种用于矫直机的支承辊
JP5365020B2 (ja) * 2008-02-08 2013-12-11 株式会社Ｉｈｉ 圧延機
US8607847B2 (en) * 2008-08-05 2013-12-17 Nucor Corporation Method for casting metal strip with dynamic crown control
US8607848B2 (en) * 2008-08-05 2013-12-17 Nucor Corporation Method for casting metal strip with dynamic crown control
DE102009021414A1 (de) * 2008-12-17 2010-07-01 Sms Siemag Aktiengesellschaft Walzgerüst zum Walzen eines insbesondere metallischen Guts
DE102010014867A1 (de) * 2009-04-17 2010-11-18 Sms Siemag Ag Verfahren zum Bereitstellen mindestens einer Arbeitswalze zum Walzen eines Walzguts
US8505611B2 (en) 2011-06-10 2013-08-13 Castrip, Llc Twin roll continuous caster
DE102010049068A1 (de) * 2010-10-20 2012-04-26 Mtu Aero Engines Gmbh Vorrichtung zum Herstellen, Reparieren und/oder Austauschen eines Bauteils mittels eines durch Energiestrahlung verfestigbaren Pulvers, sowie ein Verfahren und ein gemäß dem Verfahren hergestelltes Bauteil
CN103418760B (zh) * 2012-05-16 2017-02-01 上海宝钢工业技术服务有限公司 连铸板坯在结晶器出口产生应变的计算方法
DE102012212532B4 (de) 2012-07-18 2016-12-15 Achenbach Buschhütten GmbH & Co. KG Walzgerüst mit konturierten Walzen
EP2930006B1 (fr) 2012-12-06 2017-09-13 Scivax Corporation Dispositif ainsi que procédé de pressage au rouleau, et dispositif de gaufrage
JP6592659B2 (ja) * 2014-06-03 2019-10-23 Ｓｃｉｖａｘ株式会社 ローラ式加圧装置、インプリント装置およびローラ式加圧方法
CN104722585A (zh) 2015-03-13 2015-06-24 李慧峰 板带轧机不对称板形的补偿方法
EP3124130A1 (fr) * 2015-07-28 2017-02-01 Primetals Technologies Austria GmbH Meule de cylindre destinee a l'evitement cible de quarts d'onde
ITUB20160442A1 (it) * 2016-02-04 2017-08-04 Fiat Ricerche Procedimento per la laminazione di lamiere metalliche con spessore variabile
CN205659983U (zh) 2016-06-15 2016-10-26 日照宝华新材料有限公司 一种esp生产线用长公里数轧制辊
EP3536411B1 (fr) * 2018-03-09 2020-11-18 Primetals Technologies Germany GmbH Prévention des bords d'usure lors du laminage d'un produit plat à laminer
CN115815326B (zh) * 2022-10-31 2025-07-18 广西大学 一种液冷板的加工装置及加工方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091540A1 (fr) * 1982-04-10 1983-10-19 Sms Schloemann-Siemag Aktiengesellschaft Cage de laminoir à cylindres déplaçables axialement
EP0153849A2 (fr) * 1984-02-29 1985-09-04 Kawasaki Steel Corporation Procédé de laminage à chaud

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE91540C (fr) *
LU29117A1 (fr) * 1948-06-10
JPS5630014A (en) * 1979-08-17 1981-03-26 Kobe Steel Ltd Rolling mill
JPS56131002A (en) * 1980-03-17 1981-10-14 Hitachi Ltd Changing method for roll crown
US4519233A (en) * 1980-10-15 1985-05-28 Sms Schloemann-Siemag Ag Roll stand with noncylindrical rolls
DE3038865C1 (de) * 1980-10-15 1982-12-23 SMS Schloemann-Siemag AG, 4000 Düsseldorf Walzgeruest mit axial verschiebbaren Walzen
JPS58173001A (ja) * 1982-04-06 1983-10-11 Ishikawajima Harima Heavy Ind Co Ltd 圧延方法
US4656859A (en) * 1985-08-21 1987-04-14 Wean United, Inc. Rolling mill stand employing variable crown rolls and associated method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091540A1 (fr) * 1982-04-10 1983-10-19 Sms Schloemann-Siemag Aktiengesellschaft Cage de laminoir à cylindres déplaçables axialement
EP0153849A2 (fr) * 1984-02-29 1985-09-04 Kawasaki Steel Corporation Procédé de laminage à chaud

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 5, Nr. 83 (M-71)[755], 30. Mai 1981; & JP - A - 56 30014 (KOBE SEIKOSHO) 26.03.1981 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001019544A1 (fr) * 1999-09-14 2001-03-22 Danieli & C. Officine Meccaniche S.P.A. Procede permettant de controler le profil d"une bande dans une cage de laminage pour bande et/ou feuille
WO2007144161A1 (fr) * 2006-06-14 2007-12-21 Siemens Vai Metals Technologies Gmbh & Co Cage de laminoir pour la fabrication de bande laminée ou de tôle
WO2007144162A1 (fr) * 2006-06-14 2007-12-21 Siemens Vai Metals Technologies Gmbh & Co Cage de laminoir pour la fabrication de bande laminée ou de tôle
CN101511498B (zh) * 2006-06-14 2011-06-15 西门子Vai金属技术两合公司 用来制造轧带或者板材的轧机机架
US8413476B2 (en) 2006-06-14 2013-04-09 Siemens Vai Metals Technologies Gmbh Rolling mill stand for the production of rolled strip or sheet metal
US8881569B2 (en) 2006-06-14 2014-11-11 Siemens Vai Metals Technologies Gmbh Rolling mill stand for the production of rolled strip or sheet metal
AT509107B1 (de) * 2009-12-10 2011-09-15 Siemens Vai Metals Tech Gmbh Walzgerüst zur herstellung von walzband
US9789521B2 (en) 2009-12-10 2017-10-17 Primetals Technologies Austria GmbH Rolling stand for producing rolled strip
DE102016222987A1 (de) 2016-11-22 2018-05-24 Sms Group Gmbh Verfahren zum Schleifen der Kontur des Ballens einer Walze
WO2018095655A1 (fr) 2016-11-22 2018-05-31 Sms Group Gmbh Procédé pour rectifier le profil de la table d'un cylindre

Also Published As

Publication number Publication date
ES2014009B3 (es) 1990-06-16
UA12314A (uk) 1996-12-25
JPS62296902A (ja) 1987-12-24
CN87103686A (zh) 1987-12-30
US4800742A (en) 1989-01-31
JP2733836B2 (ja) 1998-03-30
US4955221A (en) 1990-09-11
CN1019456B (zh) 1992-12-16
DE3762188D1 (de) 1990-05-17
EP0249801B1 (fr) 1990-04-11
RU1816235C (ru) 1993-05-15
DE3620197A1 (de) 1987-12-17
ATE51774T1 (de) 1990-04-15

Similar Documents

Publication Publication Date Title
EP0249801B1 (fr) Laminoir pour la fabrication d'un feuillard de laminage
EP0049798B1 (fr) Laminoir
DE3873103T2 (de) Metallwalzverfahren mit in axialrichtung verschiebbaren arbeitswalzen.
EP0091540B1 (fr) Cage de laminoir à cylindres déplaçables axialement
DE19719318C2 (de) Verfahren zur Beeinflussung der Bandkontur im Kantenbereich eines Walzenbandes
DE3212070C2 (de) Walzgerüst mit einer Vorrichtung zur Einhaltung der Ebenheit des gewalzten Guts
EP0059417A1 (fr) Cage de laminoir
DE3624241C2 (de) Verfahren zum Betrieb eines Walzwerkes zur Herstellung eines Walzbandes
DE3431691A1 (de) Walzgeruest fuer bandfoermiges material
EP0899029B1 (fr) Cage de laminoir pour le laminage de bandes
DE3788793T2 (de) Mehrwalzen-kaltwalzwerk.
EP2392416B1 (fr) Cylindre d'appui et cage de laminoir en étant équipée
DE69702173T2 (de) Walzwerke
EP1703999B1 (fr) Procede et cage de laminoir pour influer de maniere multiple sur des profils
EP0672471B1 (fr) Procédé et dispositif pour le laminage de bandes
DE69511651T2 (de) Walzanlage
DE19807115C1 (de) Walze
EP0665067A1 (fr) Cage de laminoir à cylindres multiples du type à montants de préférence avec serrage hydraulique direct
DE29780451U1 (de) Hochgenaues Walzwerk mit zweidimensionaler Biegungssteuerung
DE69009102T3 (de) Vielwalzengerüst.
EP0943377A1 (fr) Cylindre pour une cage de laminoir
AT390392B (de) Walzwerk, insbesondere kaltwalzwerk
EP2271444B1 (fr) Cage de laminoir
EP0181474A2 (fr) Cage de laminoir à six cylindres
AT390741B (de) Walzwerk, insbesondere kaltwalzwerk

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

17P Request for examination filed

Effective date: 19870622

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE ES FR GB IT NL SE

17Q First examination report despatched

Effective date: 19890322

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE ES FR GB IT NL SE

REF Corresponds to:

Ref document number: 51774

Country of ref document: AT

Date of ref document: 19900415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3762188

Country of ref document: DE

Date of ref document: 19900517

ET Fr: translation filed
ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
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
ITTA It: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 87108001.6

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20060614

Year of fee payment: 20

Ref country code: NL

Payment date: 20060614

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: 20060615

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20060616

Year of fee payment: 20

Ref country code: AT

Payment date: 20060616

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20060619

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20060629

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060630

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20060712

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20070603

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20070604

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20070603

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20070604

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: 20070602

BE20 Be: patent expired

Owner name: *SMS SCHLOEMANN-SIEMAG A.G.

Effective date: 20070603