EP0311602B1 - Procede pour fabriquer des barres metalliques minces - Google Patents

Procede pour fabriquer des barres metalliques minces Download PDF

Info

Publication number
EP0311602B1
EP0311602B1 EP86903224A EP86903224A EP0311602B1 EP 0311602 B1 EP0311602 B1 EP 0311602B1 EP 86903224 A EP86903224 A EP 86903224A EP 86903224 A EP86903224 A EP 86903224A EP 0311602 B1 EP0311602 B1 EP 0311602B1
Authority
EP
European Patent Office
Prior art keywords
metal
melt
bar
profile
section
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
Application number
EP86903224A
Other languages
German (de)
English (en)
Other versions
EP0311602A1 (fr
Inventor
Fritz-Peter Pleschiutschnigg
Lothar Parschat
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Priority to AT86903224T priority Critical patent/ATE65436T1/de
Publication of EP0311602A1 publication Critical patent/EP0311602A1/fr
Application granted granted Critical
Publication of EP0311602B1 publication Critical patent/EP0311602B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/008—Continuous casting of metals, i.e. casting in indefinite lengths of clad ingots, i.e. the molten metal being cast against a continuous strip forming part of the cast product

Definitions

  • the invention relates to a method for producing thin metal strands, in particular made of steel, with thicknesses of less than 20 mm, in which an uncooled, cleaned metal profile of low heat content, at least on one side of its cross section, comes into contact with a metal melt located in a molten bath container and crystallizes it is brought, with the length of the contact time the thickness of the metal strand is adjusted taking into account the temperature of the metal profile and the metal melt such that re-melting of the crystallized material is avoided and the metal strand is pulled out of the metal melt in the molten bath container.
  • the molten metal is crystallized on cooled surfaces without a connection between the cooled surfaces and the crystallized material. Continuous casting therefore prevents the casting material from binding to the molds used in order not to destroy the work result.
  • the invention is therefore based on the object of proposing a method for producing thin metal strands, in particular made of steel with thicknesses of less than 20 mm, which is not only close to End product (sheets, strips, tubes, profiles) leads lying product and requires only a minimal amount of cold and hot forming, but can be produced in its structure homogeneously and in economical quantities.
  • the method according to the invention means minimal conversion costs from the liquid product (such as steel) to the finished product.
  • Another advantage is that the process can be carried out discontinuously and alternatively continuously.
  • a particular advantage is to set or control the thickness of the metal strand solely by changing the contact time between the uncooled metal body and the metal melt, in contrast to continuous casting.
  • continuous casting relatively complex devices for adjusting the narrow side plates of a continuous casting mold are available here, so that the thickness cannot initially be changed during continuous casting.
  • the thin metal profiles also make it possible not only to use completely identical materials of the molten metal with respect to the metal profile.
  • a metal profile strand with a fixed cross-section and with a fixed structural state is introduced into a related metal melt and is passed on all sides surrounded by the metal melt in the specified time, in which it is at maximum inside the solidus temperature is heated and that then the metal profile strand surrounded by the molten metal is subjected to controlled cooling outside the molten metal.
  • the metal profile strand is moved from bottom to top through the molten metal. As a result, a constant thickness of the applied melt material is achieved over the circumference of the cross section.
  • the metal profile strand is moved in several cycles by a metal melt in each case. This process step serves to produce particularly thick metal strands.
  • the invention also allows thin strands of metal to be constructed from different layers of material. For this purpose, it is provided that the metal profile strand is moved through different melt pool containers in several cycles.
  • the method for producing thin metal strands takes place in a molten metal container (1), the content of which can be regulated by the heating and / or cooling elements (2) to the desired temperature, so that the higher energy potential mentioned Metal melt (4) can be provided. If necessary, the molten metal (4) can be circulated by an electromagnetic stirring device (3) to add an additional To achieve temperature uniformity in the molten metal (4).
  • the uncooled metal profile (5) has a low energy potential, even if it is introduced preheated.
  • An uncooled metal profile strand (5a) which has a predetermined, fixed cross section (5b) and a solid structural state, is used for a continuous process.
  • Molten metal (4) and metal profile (5) or metal profile strand (5a) normally show an essentially identical analysis. During the pulling through the molten metal (4), such a contact time is maintained that the metal profile (5) or the metal profile strand (5a) inside (5c) is at most heated to solidus temperature.
  • a rectangular cross-section (5b), ie a strip cross-section is assumed as the metal profile (5).
  • the metal profile strand (5a) is moved from below through the inlet opening (1a) upwards through the molten metal (4).
  • the entire strand (6) can be kept in an atmosphere protecting against oxidation until it has cooled or has entered a molding machine in which the entire strand (6) is subjected to a hot-forming and / or a cold-forming process.
  • the thickness of the entire strand (6) can be increased by several cycles as described, the metal strand also cooling between the cycles in a space filled with inert gas. This cooling should be kept within limits in order to apply the melt material (free of phase boundaries) to the metal strand after each cycle.
  • molten metal (4) with different materials in the individual melt pool containers (1), ie to produce so-called layer materials.
  • the metal melt (4) consumed in the process is continuously fed under the corresponding metallostatic pressure through a melt inlet (7). replaced, the metal melt level (7a) being checked.
  • a leakage of the molten metal (4) through the molten metal container (1) made of refractory materials is prevented by a refractory seal (8) with a pressing device (8a), through a pressure container (9) surrounding it, in which an inert gas, such as argon, is subjected to excess pressure is introduced, sealed.
  • the pressure vessel (9) has gas inlets (10) for this purpose and a lip seal (11) is arranged at the inlet opening (1a) to prevent gas from escaping.
  • the cross section (5b) of the metal profile strand (5a) is selected to be rectangular, but there is still a natural edge (13) for the total strand thickness (12) on the broad sides, as has been determined by tests.
  • the natural edge (13) is particularly advantageous for further rolling of the metal strand.
  • the process described here can be repeated a number of times, with new metal melt (4) being transferred to the underlying, already solidified or solidified layers at the latest after the rolling process.
  • the alternative embodiment according to FIG. 6 shows the melt container (1) as described.
  • the container base (14) around the rollers (15) and (16) is either curved (right half of the drawing) or the roller (16) forms the container base (14).
  • the Rollers (15) and (16) can be driven in opposite directions.
  • the roller can consist of metal and can be cooled if necessary.
  • the roller (15) consists of ceramic or poorly heat-conducting materials.
  • the rolls (15) and (16) can do hot forming work.
  • the feed direction of the metal profile (5) or of the metal profile strand (5a) from top to bottom that is to say opposite to the exemplary embodiment according to FIG. 1.
  • the energy potential of a relative is used cold metal body in contrast to the conductive heat dissipation during continuous casting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Wire Processing (AREA)
  • Metal Rolling (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Conductive Materials (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Adornments (AREA)

Claims (7)

1. Procédé pour fabriquer des barres métalliques minces, en particulier en acier, d'une épaisseur inférieure à 20 mm, dans lequel un profilé métallique nettoyé, non refroidi, de faible capacité thermique (kcal) est amené, au moins sur une face de sa section transversale, en contact avec un bain de fusion métallique, se trouvant dans un récipient de bain de fusion, et celui-ci est amené à cristalliser, l'épaisseur de la barre métallique étant réglée, par la durée du contact, en tenant compte de la température du profilé métallique et du bain de fusion métallique, de sorte qu'une refusion de la matière cristallisée est évitée, et la barre métallique (6) est retirée du bain de fusion métallique (4) dans le récipient de bain de fusion, caractérisé en ce qu'un profilé métallique (5) ayant une épaisseur de 0,1 à 1,4 mm est maintenu en contact avec le bain de fusion métallique (4) au maximum à l'intérieur d'une durée telle qu'une barre métallique (6), constituée du profilé métallique (5) et de la matière fondue et des cristaux déposés sur celui-ci, ayant une épaisseur de barre totale (12) de 6 à 10 fois l'épaisseur du profilé initial (5), soit formée.
2. Procédé selon la revendication 1, caractérisé en ce qu'une barre (5a) de profilé métallique ayant une section transversale (5b) fixe et une structure déterminée est introduite dans un bain de fusion métallique (4) de composition analogue, et, dans le temps déterminé, le traverse en étant entourée de tous les côtés par le bain de fusion métallique (4), dans lequel elle est réchauffée, à l'intérieur (5c), au maximum à la température du solidus, et en ce que, ensuite, la barre (5a) de profilé métallique entourée par le bain de fusion métallique (4) est soumise à un refroidissement commandé à l'extérieur du bain de fusion métallique (4).
3. Procédé selon les revendications 1 et 2, caractérisé en ce que la barre (5a) de profilé métallique est déplacée, de bas en haut, à travers le bain de fusion métallique (4).
4. Procédé selon les revendications 1 à 3, caractérisé en ce que la barre (5a) de profilé métallique est déplacée, en plusieurs cycles, à travers, à chaque fois, un bain de fusion métallique (4).
5. Procédé selon les revendications 1 à 4, caractérisé en ce que la barre (5a) de profilé métallique est déplacée, selon une trajectoire prédéfinie, à travers le bain de fusion métallique (4).
6. Procédé selon les revendications 1 à 5, caractérisé en ce que la barre (5a) de profilé métallique est déplacée, en plusieurs cycles, à chaque fois dans différents récipients (1) de bain de fusion.
7. Procédé selon les revendications 1 à 6, caractérisé en ce que la barre totale (6), directement après sa sortie du bain de fusion métallique (4), est soumise à un processus de formage à chaud et/ou à un processus de formage à froid.
EP86903224A 1986-05-27 1986-05-27 Procede pour fabriquer des barres metalliques minces Expired - Lifetime EP0311602B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86903224T ATE65436T1 (de) 1986-05-27 1986-05-27 Verfahren zum erzeugen von duennen metallstraengen.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE1986/000219 WO1987007192A1 (fr) 1986-05-27 1986-05-27 Procede pour fabriquer des barres metalliques minces

Publications (2)

Publication Number Publication Date
EP0311602A1 EP0311602A1 (fr) 1989-04-19
EP0311602B1 true EP0311602B1 (fr) 1991-07-24

Family

ID=6790311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86903224A Expired - Lifetime EP0311602B1 (fr) 1986-05-27 1986-05-27 Procede pour fabriquer des barres metalliques minces

Country Status (7)

Country Link
EP (1) EP0311602B1 (fr)
JP (1) JP2655143B2 (fr)
KR (1) KR950002966B1 (fr)
AT (1) ATE65436T1 (fr)
DE (2) DE3680547D1 (fr)
DK (1) DK165581C (fr)
WO (1) WO1987007192A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994029048A1 (fr) * 1993-06-08 1994-12-22 Mannesmann Ag Procede et dispositif permettant de fabriquer des produits semi-finis
DE4426705C1 (de) * 1994-07-20 1995-09-07 Mannesmann Ag Inversionsgießeinrichtung mit Kristallisator
DE19509681C1 (de) * 1995-03-07 1996-05-02 Mannesmann Ag Verfahren und Anlage zur kontinuierlichen Erzeugung bandförmiger Bleche
DE19519068C1 (de) * 1995-05-19 1996-09-26 Mannesmann Ag Verfahren und Vorrichtung zur Herstellung von metallischem Verbundwerkstoff
DE19545259A1 (de) * 1995-11-24 1997-05-28 Mannesmann Ag Verfahren und Vorrichtung zum Erzeugen von dünnen Metallsträngen
DE19638905C1 (de) * 1996-09-23 1998-01-02 Schloemann Siemag Ag Verfahren zur Erzeugung von beschichteten Metallsträngen, insbesondere Metallbändern und Beschichtungsanlage
DE19731124C1 (de) * 1997-07-19 1999-01-21 Schloemann Siemag Ag Verfahren und Vorrichtung zur Erzeugung von beschichtetem Warm- und Kaltband
DE19814988A1 (de) * 1998-01-23 1999-07-29 Schloemann Siemag Ag Gießverfahren für ein dünnes Metallband

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE503737C2 (sv) * 1987-10-23 1996-08-19 Sven Torbjoern Ekerot Förfarande och anordning för direktgjutning av metaller till långsträckta kroppar
FI901001A (fi) * 1990-02-28 1991-08-29 Outokumpu Oy Foerfarande och anordning foer framstaellning av metallmatriskomposit.
DE19509691C1 (de) * 1995-03-08 1996-05-09 Mannesmann Ag Bodendurchführung eines Inversionsgießgefäßes
US6037011A (en) * 1997-11-04 2000-03-14 Inland Steel Company Hot dip coating employing a plug of chilled coating metal

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB509456A (en) * 1938-06-22 1939-07-17 Walter Philip Williams The formation of metallic composite sheet stock by direct casting
CH301042A (fr) * 1951-03-07 1954-08-31 British Iron Steel Research Procédé pour la fabrication d'une pièce de métal de forme allongée.
US3264692A (en) * 1964-04-29 1966-08-09 Gen Electric Inlet orifice for continuous casting apparatus
US3470939A (en) * 1965-11-08 1969-10-07 Texas Instruments Inc Continuous chill casting of cladding on a continuous support
US3483030A (en) * 1966-12-19 1969-12-09 Texas Instruments Inc Chill cladding method and apparatus
JPS5250928A (en) * 1975-10-21 1977-04-23 Nippon Steel Corp Method for immersionnmoulding of steel
JPS60191655A (ja) * 1984-03-12 1985-09-30 Fujikura Ltd クラツド線条体の製造方法
JPS6186065A (ja) * 1984-10-03 1986-05-01 Sumitomo Metal Ind Ltd 鋼のデイツプ・フオ−ミング法
JPS6192770A (ja) * 1984-10-12 1986-05-10 Fujikura Ltd デイツプフオ−ミング法

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1043317C (zh) * 1993-06-08 1999-05-12 曼内斯曼股份公司 生产半成品的方法和装置
US5722151A (en) * 1993-06-08 1998-03-03 Mannesmann Aktiengesellschaft Process for making semi-finished products
US5881441A (en) * 1993-06-08 1999-03-16 Mannesmann Aktiengesellschaft Device for making semi-finished products
WO1994029048A1 (fr) * 1993-06-08 1994-12-22 Mannesmann Ag Procede et dispositif permettant de fabriquer des produits semi-finis
DE4426705C1 (de) * 1994-07-20 1995-09-07 Mannesmann Ag Inversionsgießeinrichtung mit Kristallisator
DE19509681C1 (de) * 1995-03-07 1996-05-02 Mannesmann Ag Verfahren und Anlage zur kontinuierlichen Erzeugung bandförmiger Bleche
DE19519068C1 (de) * 1995-05-19 1996-09-26 Mannesmann Ag Verfahren und Vorrichtung zur Herstellung von metallischem Verbundwerkstoff
DE19545259A1 (de) * 1995-11-24 1997-05-28 Mannesmann Ag Verfahren und Vorrichtung zum Erzeugen von dünnen Metallsträngen
DE19638905C1 (de) * 1996-09-23 1998-01-02 Schloemann Siemag Ag Verfahren zur Erzeugung von beschichteten Metallsträngen, insbesondere Metallbändern und Beschichtungsanlage
US6051278A (en) * 1996-09-23 2000-04-18 Sms Schloemann-Siemag Aktiengesellschaft Method of producing coated metal slabs, particularly metal strips, and coating plant
DE19731124C1 (de) * 1997-07-19 1999-01-21 Schloemann Siemag Ag Verfahren und Vorrichtung zur Erzeugung von beschichtetem Warm- und Kaltband
DE19814988A1 (de) * 1998-01-23 1999-07-29 Schloemann Siemag Ag Gießverfahren für ein dünnes Metallband
DE19814988C2 (de) * 1998-01-23 2000-11-16 Sms Demag Ag Gießverfahren für ein dünnes Metallband

Also Published As

Publication number Publication date
DE3680547D1 (de) 1991-08-29
KR880701148A (ko) 1988-07-25
DK165581B (da) 1992-12-21
DK165581C (da) 1993-05-03
JP2655143B2 (ja) 1997-09-17
JPH01503046A (ja) 1989-10-19
WO1987007192A1 (fr) 1987-12-03
DK36688D0 (da) 1988-01-26
DK36688A (da) 1988-03-22
ATE65436T1 (de) 1991-08-15
KR950002966B1 (ko) 1995-03-29
EP0311602A1 (fr) 1989-04-19
DE3690741D2 (en) 1989-08-17

Similar Documents

Publication Publication Date Title
EP0311602B1 (fr) Procede pour fabriquer des barres metalliques minces
EP3495086B1 (fr) Procédé et dispositif de fabrication d'un matériau composite en forme de bande
DE3049353C2 (de) Verfahren zum Stranggießen und Vorrichtung zur Durchführung des Verfahrens
DE3440236C2 (fr)
DE2548939C2 (de) Verfahren und Vorrichtung zum Stranggießen von Bändern
DE3440235C2 (de) Verfahren und Vorrichtung zum Bandstranggießen von Metallen, insbesondere von Stahl
DD141276A5 (de) Verfahren und anlage fuer den strangguss roehrenfoermiger erzeugnisse
EP2025432A1 (fr) Procédé destiné à la production de produits allongés en acier par coulage en continu et laminage
DE1508809A1 (de) Verfahren und Durchlaufkokille zum Stranggiessen von Metallen,insbesondere in Form von Brammen,Platten oder Blechen
DE3247002C1 (de) Verfahren und Vorrichtung zum Angiessen von duennen Straengen aus Stahl beim Stranggiessen
DE3856161T2 (de) Verfahren und vorrichtung zum direkten giessen von metall zur bildung langer körper
DE2406252C3 (de) Verfahren und Vorrichtung zum Stranggießen und Weiterverarbeiten des gegossenen Strangs
AT142197B (de) Verfahren und Vorrichtung zur direkten Formgebung von flüssigen Metallen.
DE1218120B (de) Vorrichtung zum kontinuierlichen Giessen von Metallstraengen
DE19850213C2 (de) Gießverfahren für ein dünnes Metallband und zugehörige Gießvorrichtung
AT403351B (de) Verfahren zum stranggiessen eines metallstranges
DE1471952A1 (de) Verfahren und Einrichtung zur Herstellung von Flachglas
DE672731C (de) Verfahren zur katalytischen Reduktion des Kohlenoxyds zu mehrgliedrigen Kohlenwasserstoffen
EP0614714A1 (fr) Machine pour la coulée continue de brames minces en acier
DE3346391C2 (de) Stranggießverfahren und Vorrichtung zum Herstellen von Mehrschichtwerkstoffen
DE2720142A1 (de) Verfahren zur herstellung eines waermeaustauschers
DE3832003A1 (de) Zweiwalzen-stranggussmaschine
DE1558292A1 (de) Verfahren zum Herstellen einer Pressenplatte aus Gusseisen mit eingegossenen Stahlrohren
DE1816868C (de) Verfahren und Durchlaufkammer zum Behandeln von stranggegossenen Stahlstrangen beim Walzen aus der Gießhitze
AT231629B (de) Stranggießanlage für Metalle

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: 19881112

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17Q First examination report despatched

Effective date: 19891019

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed

Owner name: GUZZI E RAVIZZA S.R.L.

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 65436

Country of ref document: AT

Date of ref document: 19910815

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 3680547

Country of ref document: DE

Date of ref document: 19910829

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
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 86903224.3

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

Ref country code: GB

Payment date: 19990413

Year of fee payment: 14

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

Ref country code: FR

Payment date: 19990419

Year of fee payment: 14

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

Ref country code: SE

Payment date: 19990421

Year of fee payment: 14

Ref country code: CH

Payment date: 19990421

Year of fee payment: 14

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

Ref country code: AT

Payment date: 19990422

Year of fee payment: 14

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

Ref country code: BE

Payment date: 19990426

Year of fee payment: 14

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

Ref country code: NL

Payment date: 19990427

Year of fee payment: 14

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

Ref country code: LU

Payment date: 19990428

Year of fee payment: 14

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: 20000527

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000527

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000527

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

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000528

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

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000531

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000531

BERE Be: lapsed

Owner name: MANNESMANN A.G.

Effective date: 20000531

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 NON-PAYMENT OF DUE FEES

Effective date: 20001201

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20000527

EUG Se: european patent has lapsed

Ref document number: 86903224.3

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: 20010131

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20001201

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: 20040510

Year of fee payment: 19

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050527

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051201