EP0259232A1 - Gut bearbeitbare und schweissbare Aluminiumlegierung und Verfahren zu ihrer Herstellung - Google Patents

Gut bearbeitbare und schweissbare Aluminiumlegierung und Verfahren zu ihrer Herstellung Download PDF

Info

Publication number
EP0259232A1
EP0259232A1 EP87420190A EP87420190A EP0259232A1 EP 0259232 A1 EP0259232 A1 EP 0259232A1 EP 87420190 A EP87420190 A EP 87420190A EP 87420190 A EP87420190 A EP 87420190A EP 0259232 A1 EP0259232 A1 EP 0259232A1
Authority
EP
European Patent Office
Prior art keywords
alloy
homogenization
bending
alloy according
trapezoid
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
EP87420190A
Other languages
English (en)
French (fr)
Other versions
EP0259232B1 (de
EP0259232B2 (de
Inventor
Didier Constant
Gilbert Gutmann
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.)
Constellium Issoire SAS
Original Assignee
Cegedur Societe de Transformation de lAluminium Pechiney SA
Pechiney Rhenalu SAS
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25671592&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0259232(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Cegedur Societe de Transformation de lAluminium Pechiney SA, Pechiney Rhenalu SAS filed Critical Cegedur Societe de Transformation de lAluminium Pechiney SA
Priority to AT87420190T priority Critical patent/ATE64763T1/de
Publication of EP0259232A1 publication Critical patent/EP0259232A1/de
Publication of EP0259232B1 publication Critical patent/EP0259232B1/de
Application granted granted Critical
Publication of EP0259232B2 publication Critical patent/EP0259232B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon

Definitions

  • the invention relates to a weldable boilermaking aluminum alloy containing essentially Si, Mg and Cu and to its manufacturing process.
  • alloys of the 6000 series according to the nomenclature of the Aluminum Association have been developed essentially in the form of profiles, although some of these alloys such as 6061 or 6082, are commonly found in the form of sheets or strips, intended for the stamping.
  • Patent application FR 2 375 332 describes a process in which an alloy rich in Si is treated so as to obtain a fine sub-micron precipitation (0.1 to 0.5 ⁇ m) of Si in supersaturation; this size is intermediate between the eutectic phases present in the alloy and that of the hardening phases usually observed in Al-Si-Mg-Cu alloys.
  • French patent application FR 2 360 684 describes an Al-Si-Mg-Cu alloy containing at least one of the recrystallization inhibiting elements from the group Mn, Cr, Zr.
  • Mn in particular has several drawbacks: . it gives rise to the solidification of intermetallic compounds based on Fe, Mn, Si which reduce the deformation capacity of the alloy and can initiate decohesions and ruptures, during shaping operations; . it increases the critical quenching speed and therefore limits the possibilities of heat treatments for thick products; . it gives the alloy a fairly poor corrosion behavior; . it is not suitable for short-term homogenizations, such as those generally obtained in passage ovens.
  • the alloy comprises (in% by weight) contents of Si and Mg defined by the trapezoid of coordinates: Cu 0.1 - 0.5 Mn 0 - 0.2 Ti 0 - 0.1 Fe 0 - 0.35 others each ⁇ 0.05 total ⁇ 0.15 remains Al.
  • the maximum Si / Mg ratio (BC side of the trapezoid) remains equal to or greater than 2.6 approximately so as to limit the precipitation of Mg2Si during solidification as much as possible.
  • the fine precipitation Mg2Si present in the alloy results only from the heat treatments undergone.
  • the secondary elements are limited for the following reasons: As explained above, the presence of Mn is not desirable; however, it has been admitted up to 0.2% maximum due to possible contamination in this element, due to the recycling of waste. It should be noted that the alloy does not contain intentional additions of Cr and / or Zr.
  • the Ti associated with B controls, as is known, the fineness of the primary crystallization of the raw casting products (plates, strips, billets, etc.) and allows shorter homogenizations and solutions, in particular in which concerns the processing of flat products (sheets, strips).
  • the effective contents are Ti ⁇ 0.1% and B ⁇ 0.05%.
  • the Fe content is limited to 0.35% to avoid the formation of coarse primary compounds containing Fe (AlMnFeSi type).
  • the range of manufacturing of the alloys according to the invention generally comprises the continuous or semi-continuous casting of blanks, possible homogenization, hot transformation, possible cold transformation, dissolution and tempering.
  • homogenization at high temperature between 550 ° C and 570 ° C with a holding time of 6 to 24 hours is desirable. Homogenization is preferably preceded by a slow rise in temperature.
  • the hot transformation is carried out by any known means (rolling, spinning, forging, etc.). However, this must then be carried out so as to avoid coarse recrystallizations during operation. In the case of sheets and strips, these coarse hot recrystallizations are the source of macroscopic deformation lines, visible after stamping, therefore unacceptable for this application.
  • the temperature at the end of hot transformation to avoid these recrystallizations, must imperatively be between 270 ° and 340 ° C.
  • the alloy After possible cold transformation, the alloy is put into a complete solution. This takes place in the temperature range between 540 and 580 ° C, preferably between 550 and 570 ° C, targeting the temperature of 560 ° C.
  • the temperature rise before dissolving must be rapid (V ⁇ 10 ° C / sec) and dissolving preferably carried out either in a through oven, or in a sheet-to-sheet processing oven.
  • the processing time varies from a few seconds to a few minutes, without being able to exceed one hour.
  • the sheets and strips thus obtained have good isotropy and an average grain size not exceeding 60 ⁇ m.
  • the quenching must be rapid and depends on the thickness of the product. For sheets and strips, it is generally carried out in calm or pulsed air.
  • the parts undergo hardening income, under the usual conditions; the hardening is due to the precipitation of the Mg2Si phase and of the complex AlCuMg, AlCuMg Si phases. Tempering is typically carried out between 8 to 12 h at 165 ° C.
  • FIG. 1 represents the field of composition of the elements Si and Mg of the alloy
  • FIG. 2 represents the field of dissolution or homogenization of an alloy according to the invention, on a vertical section of the state diagram Al, Mg, Si at 0.2% Mg.
  • Dissolution (or homogenization) must be carried out in the single-phase field and in particular under the temperature conditions represented by the rectangle FGHI for the general range and F'G'H'I 'for the preferred range.
  • This heat treatment therefore requires a precise industrial tool.
  • the dissolution of these was carried out in a passage oven at a speed of 20 m / min, the time for keeping at temperature of 560 ° C. being of the order of 1 minute and the speed of temperature rise about 25 ° C / sec.
  • the anisotropy was estimated by making buckets and measuring the rate of the horns according to the AFNOR NF-A-50-301 standard. This value is equal to 7%.
  • the grain size measured by metallography is 40 ⁇ m.
  • Sheets cut from the dissolved metal were finished by shaping parts of the automobile body, in this case a front cover.
  • Example 1 A sheet of the same composition as that of Example 1 was welded to another sheet of the same composition by spot welding, under the following conditions: "Mallory 328" tapered electrode with apex angle 60 ° and pellet diameter ⁇ 5.5 mm. Support force: 400 kg Intensity: 27,000 A Frequency: 2 Hz.
  • the assembly was then brought, in an oven, to 165 ° C for 10 h.
  • the shear strength of the welded joints thus obtained is of the order of 280 MPa. We can see the good properties obtained after welding and tempering.
  • the alloy according to the invention has the following advantages: This alloy is delivered in T4 state to transformers. In this state, the alloy is ductile and lends itself well to deformation, its maturation at ambient temperature being very low. The cold deformed part acquires better resistance characteristics by work hardening, at least locally in the most deformed zones; the softening due to annealing during the welding operation is partially offset by the structural hardening during the final tempering (T6).
  • the metal undergoes after quenching only the finishing operations (such as dressing, leveling, etc.) which are strictly necessary.
  • the alloys according to the invention are mainly used in the fields of automobile bodywork and casing.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Filtering Materials (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Heat Treatment Of Articles (AREA)
  • Mold Materials And Core Materials (AREA)
  • Heat Treatment Of Steel (AREA)
  • Arc Welding In General (AREA)
EP87420190A 1986-07-07 1987-07-02 Gut bearbeitbare und schweissbare Aluminiumlegierung und Verfahren zu ihrer Herstellung Expired - Lifetime EP0259232B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87420190T ATE64763T1 (de) 1986-07-07 1987-07-02 Gut bearbeitbare und schweissbare aluminiumlegierung und verfahren zu ihrer herstellung.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR8610028 1986-07-07
FR8610028A FR2601040B1 (fr) 1986-07-07 1986-07-07 Alliage d'aluminium chaudronnable et soudable et son procede de fabrication
CA000552025A CA1340260C (fr) 1986-07-07 1987-11-17 Alliage d'aluminium chaudronnable et soudable et son procede de fabrication

Publications (3)

Publication Number Publication Date
EP0259232A1 true EP0259232A1 (de) 1988-03-09
EP0259232B1 EP0259232B1 (de) 1991-06-26
EP0259232B2 EP0259232B2 (de) 1998-01-28

Family

ID=25671592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87420190A Expired - Lifetime EP0259232B2 (de) 1986-07-07 1987-07-02 Gut bearbeitbare und schweissbare Aluminiumlegierung und Verfahren zu ihrer Herstellung

Country Status (7)

Country Link
US (1) US4814022A (de)
EP (1) EP0259232B2 (de)
CA (1) CA1340260C (de)
DE (1) DE3771017D1 (de)
ES (1) ES2022918T5 (de)
FR (1) FR2601040B1 (de)
GR (2) GR3002191T3 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995014113A1 (fr) * 1993-11-17 1995-05-26 Pechiney Rhenalu Alliage de type aluminium-silicon-magnesium a ductilite et emboutissabilite ameliorees et procede d'obtention
WO1995031580A1 (en) * 1994-05-11 1995-11-23 Aluminum Company Of America Corrosion resistant aluminum alloy rolled sheet
EP0714993A1 (de) * 1994-11-29 1996-06-05 Alusuisse-Lonza Services AG Tiefziehbare und schweissbare Aluminiumlegierung vom Typ ALMgSi
EP0811700A1 (de) * 1996-06-04 1997-12-10 Alusuisse Technology & Management AG Tiefziehbare und schweissbare Aluminiumlegierung vom Typ AlMgSi
WO1998014626A1 (en) * 1996-09-30 1998-04-09 Alcan International Limited Aluminium alloy for rolled product process
WO2013030469A1 (fr) 2011-09-02 2013-03-07 Constellium France Tôle plaquée pour carrosserie automobile

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9318041D0 (en) * 1993-08-31 1993-10-20 Alcan Int Ltd Extrudable a1-mg-si alloys
US5919323A (en) * 1994-05-11 1999-07-06 Aluminum Company Of America Corrosion resistant aluminum alloy rolled sheet
US5582660A (en) * 1994-12-22 1996-12-10 Aluminum Company Of America Highly formable aluminum alloy rolled sheet
EP0851942B2 (de) * 1995-09-19 2005-08-24 Alcan International Limited Verwendung von gewalzte aluminiumlegierungen für konstruktionsteile von fahrzeuge
FR2748035B1 (fr) * 1996-04-29 1998-07-03 Pechiney Rhenalu Alliage aluminium-silicium-magnesium pour carrosserie automobile
US6780259B2 (en) * 2001-05-03 2004-08-24 Alcan International Limited Process for making aluminum alloy sheet having excellent bendability
FR2835533B1 (fr) * 2002-02-05 2004-10-08 Pechiney Rhenalu TOLE EN ALLIAGE Al-Si-Mg POUR PEAU DE CARROSSERIE AUTOMOBILE
US6959476B2 (en) * 2003-10-27 2005-11-01 Commonwealth Industries, Inc. Aluminum automotive drive shaft
RU2596509C2 (ru) 2011-11-11 2016-09-10 Новелис Инк. Алюминиевый сплав
ES2501041T5 (es) 2011-11-11 2018-11-13 Novelis, Inc. Aleación de aluminio
DE202011110888U1 (de) 2011-11-11 2017-01-24 Novelis Inc. Aluminiumlegierung
CN113574192A (zh) 2019-03-13 2021-10-29 诺维尔里斯公司 可时效硬化且可高度成形的铝合金及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3149001A (en) * 1962-04-05 1964-09-15 Aluminum Co Of America Enameled aluminous metal product
US3370943A (en) * 1965-11-04 1968-02-27 Kaiser Aluminium Chem Corp Aluminum alloy
FR2360684A1 (fr) * 1976-08-05 1978-03-03 Aluminum Co Of America Elements de structure ameliores en aluminium, pour vehicules automobiles
FR2375332A1 (fr) * 1976-12-24 1978-07-21 Alusuisse Procede de fabrication de toles d'aluminium bien transformables, pauvres en cornes et d'une haute resistance mecanique
FR2446865A1 (fr) * 1979-01-16 1980-08-14 Pechiney Aluminium Alliage d'aluminium type a-gs a resistance mecanique et tenacite elevees

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3149001A (en) * 1962-04-05 1964-09-15 Aluminum Co Of America Enameled aluminous metal product
US3370943A (en) * 1965-11-04 1968-02-27 Kaiser Aluminium Chem Corp Aluminum alloy
FR2360684A1 (fr) * 1976-08-05 1978-03-03 Aluminum Co Of America Elements de structure ameliores en aluminium, pour vehicules automobiles
FR2375332A1 (fr) * 1976-12-24 1978-07-21 Alusuisse Procede de fabrication de toles d'aluminium bien transformables, pauvres en cornes et d'une haute resistance mecanique
FR2446865A1 (fr) * 1979-01-16 1980-08-14 Pechiney Aluminium Alliage d'aluminium type a-gs a resistance mecanique et tenacite elevees

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995014113A1 (fr) * 1993-11-17 1995-05-26 Pechiney Rhenalu Alliage de type aluminium-silicon-magnesium a ductilite et emboutissabilite ameliorees et procede d'obtention
FR2713664A1 (fr) * 1993-11-17 1995-06-16 Pechiney Rhenalu Alliage type Al-Si-Mg à ductilité et emboutissabilité améliorées et procédé d'obtention.
WO1995031580A1 (en) * 1994-05-11 1995-11-23 Aluminum Company Of America Corrosion resistant aluminum alloy rolled sheet
EP0714993A1 (de) * 1994-11-29 1996-06-05 Alusuisse-Lonza Services AG Tiefziehbare und schweissbare Aluminiumlegierung vom Typ ALMgSi
CH688379A5 (de) * 1994-11-29 1997-08-29 Alusuisse Lonza Services Ag Tiefziehbare und schweissbare Aluminiumlegierung vom Typ AlMgSi
EP0811700A1 (de) * 1996-06-04 1997-12-10 Alusuisse Technology & Management AG Tiefziehbare und schweissbare Aluminiumlegierung vom Typ AlMgSi
CH690916A5 (de) * 1996-06-04 2001-02-28 Alusuisse Tech & Man Ag Tiefziehbare und schweissbare Aluminiumlegierung vom Typ AlMgSi.
WO1998014626A1 (en) * 1996-09-30 1998-04-09 Alcan International Limited Aluminium alloy for rolled product process
WO2013030469A1 (fr) 2011-09-02 2013-03-07 Constellium France Tôle plaquée pour carrosserie automobile

Also Published As

Publication number Publication date
EP0259232B1 (de) 1991-06-26
DE3771017D1 (de) 1991-08-01
FR2601040A1 (fr) 1988-01-08
FR2601040B1 (fr) 1988-09-02
GR3002191T3 (en) 1992-12-30
ES2022918B3 (es) 1991-12-16
US4814022A (en) 1989-03-21
CA1340260C (fr) 1998-12-15
GR3026104T3 (en) 1998-05-29
EP0259232B2 (de) 1998-01-28
ES2022918T5 (es) 1998-03-16

Similar Documents

Publication Publication Date Title
EP0259232B1 (de) Gut bearbeitbare und schweissbare Aluminiumlegierung und Verfahren zu ihrer Herstellung
KR100349566B1 (ko) 소성가공용마그네슘합금주조소재,이를사용한마그네슘합금부재및이들의제조방법
EP0208631B1 (de) Aluminiumlegierungen mit hohem Lithium- und Siliziumgehalt und Verfahren zu ihrer Herstellung
EP1472380B1 (de) Blech aus al-si-mg-legierung für karroserie von kraftfahrzeugen
FR2584094A1 (fr) Materiau d'alliage de titane de haute resistance ayant une meilleure ouvrabilite et procede pour sa production
EP0686208B1 (de) Verfahren zur herstellung eines bleches aus aluminiumlegierung mit guter formbarkeit
EP0514293A1 (de) Verfahren zur Herstellung eines Werkstuckes aus einer Titanlegierung mit einer modifizierten Warmverarbeitungsstufe und hergestelltes Werkstuck
EP0756017B1 (de) Aluminium-Kupfer-Magnesium-Legierung mit hoher Kriechbeständigkeit
JP2008297630A (ja) 優れた曲げ特性を有するアルミニウム合金の形成方法
FR2752244A1 (fr) Produit pour construction soudee en alliage almgmn a tenue a la corrosion amelioree
JPH01272753A (ja) 耐食性に優れるアルミニウム製品及びその製造方法
EP0008996B1 (de) Verfahren zur Wärmebehandlung von Aluminium-Kupfer-Magnesium-Silizium-Legierungen
EP0298876B1 (de) Bleche aus einer Magnesium enthaltenden Aluminiumlegierung, geeignet für die Herstellung von Getränkedosen durch Tiefziehen, und Verfahren zur Herstellung dieser Bleche
EP1143027B1 (de) Verfahren zur Herstellung von Flugzeugstrukturelementen aus Al-Si-Mg-Legierung
EP0983129A1 (de) Verfahren zur herstellung von aluminiumbändern durch rollen-bandgiessen
CA2013270A1 (fr) Alliage a base d'al a haut module et resistance mecanique a elevee et procede d'obtention
EP0157711A1 (de) Verfahren zur Herstellung von Gegenständen aus Al-Li-Mg-Cu Legierungen mit hoher Duktilität und Isotropie
FR2701491A1 (fr) Procédé de fabrication d'une plaque en alliage d'aliminium amélioré.
JP2700838B2 (ja) 自動車ホイールリム用のロール成形加工用アルミニウム合金圧延板の製造方法
JPH10317113A (ja) 曲げ加工性に優れたアルミニウム押出し形材の製造方法
EP0375572B1 (de) Tiefziehbare Aluminiumlegierung, die Silicium, Magnesium und Kupfer enthält
CA1106265A (fr) Procede de traitement thermique et de trempe des pieces forgees
EP0282421A2 (de) Zugspannungsbeständiges Lithium enthaltendes Aluminiumlegierungs-Erzeugnis und Verfahren zu seiner Herstellung
JPH1121648A (ja) 光輝性アルミニウム材およびその製造方法
EP0300927A1 (de) Legierung auf Aluminiumbasis für Getränkedosen und Verfahren zu ihrer Herstellung

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): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19880325

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CEGEDUR PECHINEY RHENALU

17Q First examination report despatched

Effective date: 19890818

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: PECHINEY RHENALU

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REF Corresponds to:

Ref document number: 64763

Country of ref document: AT

Date of ref document: 19910715

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: ING. A. GIAMBROCONO & C. S.R.L.

REF Corresponds to:

Ref document number: 3771017

Country of ref document: DE

Date of ref document: 19910801

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: ALUSUISSE-LONZA SERVICES AG

Effective date: 19920325

NLR1 Nl: opposition has been filed with the epo

Opponent name: ALUSUISSE-LONZA SERVICES AG.

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3002191

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: ALUSUISSE-LONZA SERVICES AG

Effective date: 19920325

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

Ref document number: 87420190.8

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

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

Ref country code: AT

Payment date: 19970619

Year of fee payment: 11

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

Ref country code: GR

Payment date: 19970627

Year of fee payment: 11

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

Ref country code: NL

Payment date: 19970731

Year of fee payment: 11

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

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

Ref country code: BE

Payment date: 19970805

Year of fee payment: 11

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

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

Ref country code: LU

Payment date: 19971006

Year of fee payment: 11

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19980128

AK Designated contracting states

Kind code of ref document: B2

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

ITF It: translation for a ep patent filed

Owner name: ING. A. GIAMBROCONO & C. S.R.L.

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

Ref country code: GR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19980212

REG Reference to a national code

Ref country code: CH

Ref legal event code: AEN

Free format text: MAINTIEN DU BREVET DONT L'ETENDUE A ETE MODIFIEE

GBTA Gb: translation of amended ep patent filed (gb section 77(6)(b)/1977)
REG Reference to a national code

Ref country code: ES

Ref legal event code: DC2A

Kind code of ref document: T5

Effective date: 19980209

NLR2 Nl: decision of opposition
NLR3 Nl: receipt of modified translations in the netherlands language after an opposition procedure
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: 19980702

Ref country code: AT

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

Effective date: 19980702

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

Ref country code: BE

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

Effective date: 19980731

BERE Be: lapsed

Owner name: PECHINEY RHENALU

Effective date: 19980731

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: 19990201

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

Effective date: 19990201

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050702

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

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

Ref country code: CH

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: DE

Payment date: 20060620

Year of fee payment: 20

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

Ref country code: SE

Payment date: 20060621

Year of fee payment: 20

Ref country code: GB

Payment date: 20060621

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: 20060707

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: 20060711

Year of fee payment: 20

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20070703

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: 20070701

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: 20070703