EP0685567A1 - Rostfreies ferritisches Stahl mit verbesserter Bearbeitbarkeit - Google Patents

Rostfreies ferritisches Stahl mit verbesserter Bearbeitbarkeit

Info

Publication number
EP0685567A1
EP0685567A1 EP95400951A EP95400951A EP0685567A1 EP 0685567 A1 EP0685567 A1 EP 0685567A1 EP 95400951 A EP95400951 A EP 95400951A EP 95400951 A EP95400951 A EP 95400951A EP 0685567 A1 EP0685567 A1 EP 0685567A1
Authority
EP
European Patent Office
Prior art keywords
steel
ferritic
steels
sulfur
composition
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
EP95400951A
Other languages
English (en)
French (fr)
Other versions
EP0685567B1 (de
Inventor
Pierre Pedarre
Pascal Terrien
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.)
Ugitech SA
Original Assignee
Ugine Savoie SA
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 Ugine Savoie SA filed Critical Ugine Savoie SA
Publication of EP0685567A1 publication Critical patent/EP0685567A1/de
Application granted granted Critical
Publication of EP0685567B1 publication Critical patent/EP0685567B1/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
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium

Definitions

  • the present invention relates to a stainless steel of ferritic structure and improved machinability, usable in particular in the field of bar turning.
  • stainless steels means iron alloys containing at least 10.5% chromium.
  • Ferritic stainless steels are characterized by a determined composition, the ferritic structure being in particular ensured, after rolling and cooling of the composition, by an annealing heat treatment giving them said structure.
  • the steel structure When hot rolling, the steel structure can be two-phase, ferritic and austenitic. If the cooling is, for example energetic, the final structure is ferritic and martensitic. If it is slower, the austenite partially decomposes into ferrite and carbides, but with a content of carbide richer than the surrounding matrix, the austenite having hot dissolved more carbon than ferrite. In both cases, tempering or annealing must therefore be carried out on hot rolled and cooled steels to generate a totally ferritic structure. Tempering can take place at a temperature of approximately 820 ° C lower than the alpha transition alpha ⁇ gamma temperature, which generates a precipitation of carbides.
  • the thermal conductivity of ferritic steels is very low. It is between that of martensitic steels and that of austenitic steels at room temperature. It is equivalent to the thermal conductivity of austenitic steels at temperatures between 800 ° C and 1000 ° C, temperatures which correspond to the temperatures of steels during machining.
  • the coefficient of thermal expansion of ferritic steels is around 60% higher than that of austenitic steels.
  • ferritic steels have significantly lower mechanical characteristics than those of martensitic and austenitic steels.
  • the following table presents a series of stainless, ferritic, martensitic, austenitic steels and the corresponding mechanical characteristics (Rm).
  • Stainless steel Standardized RM MPa
  • Ferritic AISI 430 Z8 C17
  • 440 - 640 AISI 430F Z20 CF17
  • 440 - 640 Martensitic AISI 420A Z20 C13
  • 700 - 850 AISI 420B Z33 C13
  • 850 - 1000 F16 H (Z7CNU16-04) (hardened) 930 - 1100 Austenitic AISI 304 (Z6 CNT18 10) 510 - 710
  • the flow stress at a rolling temperature of 1100 ° C and for a deformation speed of 1 s ⁇ 1 is 110 MPa for martensitic steel of type AISI 420 A, of 130 MPa for an austenitic steel of type AISI 304 whereas it is 30 MPa for a ferritic steel of type AISI 430.
  • Steels of ferritic structure are not subjected to rapid cooling of the quenching or hyper quenching type like martensitic or austenitic steels.
  • they are generally subjected to very specific deferred heat treatments which give them their structure.
  • Deferred heat treatments also have the aim of homogenizing the chromium element and avoiding the creation of chromium carbide and the appearance of zones depleted in chromium.
  • steels of ferritic structure with 17% chromium not stabilized have, after rolling, a ferritic and martensitic structure.
  • a heat treatment ensures on the one hand the transformation of martensite into ferrite and carbides and on the other hand, a uniform distribution of the chromium.
  • ferritic stainless steels pose very different machinability problems than those encountered with stainless steels of austenitic or martensitic structure.
  • ferritic steels a big drawback of ferritic steels is the poor conformation of the chip. They produce long, tangled chips, which are very difficult to fragment. It is then necessary for the operators to remain close to the machine to release the tools. This drawback can become very detrimental in machining modes where the chip is confined, such as for example in deep drilling, cutting ...
  • Another solution provided to overcome the machining problems of ferritic steels is to introduce sulfur into their composition.
  • Sulfur forms with manganese manganese sulfides which have a favorable effect on the fragmentation of the chips and incidentally on the life of the tools.
  • sulfur degrades the properties of ferritic steel, in particular hot and cold deformability, and resistance to corrosion.
  • Said ferritic steels usually contain hard inclusions of chromite (Cr Mn, Al Ti) O, alumina (AlMg) O, silicate (SiMn) O type, abrasives for cutting tools. It has been found that resulphurized ferritic steels have good machinability, however, in addition to corrosion resistance, the mechanical properties in the cross direction are greatly degraded.
  • the object of the invention is to propose a ferritic steel with improved machinability having characteristics far superior to those, for example, resulphurized ferritic steels and, in another form, to present a machinable ferritic steel containing little or no sulfur.
  • FIGS. 1 and 2 present a diagram of conformation of the chips as a function of the machining conditions respectively for a known ferritic steel AISI 430 non-resulfurized, designated by the reference A and for an austenitic steel AISI 304.
  • Figure 3 shows different conformations of shavings from machining during the turning of different metals.
  • FIG. 4 is a ternary diagram defining the compositions of the malleable oxides introduced into the composition of the ferritic steel according to the invention.
  • Figures 5 and 6 show a chip shaping diagram as a function of the machining conditions respectively for a known ferritic steel C AISI 430F resulfurized and for a resulfurized ferritic steel S according to the invention.
  • FIG. 7 is a diagram showing three characteristic machinability test curves, one of which corresponds to reference steel A, the other two corresponding to two steels of the invention C1 and C2 and containing little sulfur.
  • FIG. 8 presents a diagram diagramming the conformation of chips as a function of the advance of the tool and the depth of the machining pass for a steel C2 according to the invention.
  • austenitic stainless steels have the disadvantage of being hardenable and of wearing out the cutting tools very quickly, the conformation of the chips is poor, but without comparison with that of ferritic steels.
  • FIGS. 1 and 2 show a diagram of chip shaping as a function of the advance and the depth of the machining pass determined respectively for a non-resulfurized AISI 430 ferritic steel corresponding to the reference A and an AISI 304 austenitic steel.
  • FIG. 3 is a table which associates with different chip conformations a coefficient comprising several successive digits, the first digit defining different general images of the chip, forming the columns of the table such as 1: ribbon chip ; 2: tubular chip; 3: spiral chip ..., 4: helical chip in a washer; 5: conical helical chip; 6: arched chip; 7: elementary chip; 8: needle chip, the second digit defining a characteristic of size and shape classified in each of the columns such as: 1: long; 2: short .; 3: tangled; 4: flat; 5: conical; 6: attached; 7: detached.
  • Martensitic stainless steels have high mechanical properties, which generate high cutting temperatures and rapid tool wear.
  • ferritic stainless steel with improved machinability usable in particular in the field of bar turning, comprises in its composition by weight, less than 0.17% of carbon, less than 2% of silicon, less than 2% of manganese, 11 to 20% chromium, less than 1% nickel, less than 0.55% sulfur, more than 30 10 ⁇ 4% calcium and more than 70 10 ⁇ 4% oxygen, steel being subjected, after preparation, to an annealing treatment to give it a ferritic structure.
  • the so-called malleable inclusions contained in the equally malleable steel cannot have the same behavior as malleable inclusions in non-malleable steel with an austenitic or martensitic structure.
  • the rolling temperatures of ferritic steels are lower than the rolling temperatures of steels of another structure, and the flow stress of ferritic steels remains very low at these rolling temperatures.
  • FIGS. 5 and 6 represent a diagram of conformation of chips as a function of a feed of the tool and a depth of machining pass determined, respectively for a steel referenced C of the type AISI 430F resulfurized and for a steel S , resulfurized according to the invention.
  • the composition of the reference steel C is presented in Table 1.
  • Table 2 The composition of the steel S according to the invention is given in table 2.
  • the chip removal phenomenon is very specific. Without being clearly marked on the chip, the fragmentation is increased significantly.
  • the steels according to the invention may also contain less than 3% of molybdenum, an element improving the resistance to corrosion. It has been found that a steel of ferritic structure according to the invention, containing no or very little sulfur, has a greatly improved machining such that this steel can be used industrially in bar turning, while having good resistance corrosion.
  • a machinability comparison is presented between the steel referenced A, non-resulfurized ferritic and containing no oxide of anorthite, gehlenite and pseudowollastonite type and two steels C1 and C2 from the field of invention.
  • Table 3 shows the composition of the reference steel A.
  • Table 4 shows the composition of steels C1 and C2 in the field of the invention.
  • table 3 steel VS Yes Mn Or Cr Ref.A 0.058 0.356 0.514 0.212 16.35 steel Mo Cu S P N2 Ref.A 0.226 0.021 0.0114 0.019 0.046
  • C1 steel because of its composition does not contain enough so-called malleable oxides of the anothite, gehlenite, pseudowollostonite type, due to the lack of calcium in the metal.
  • the steel C2 according to the invention has a fragmentation zone markedly greater than the reference steel A, and even close to the reference steel C which is a resulfurized ferritic steel.
  • the malleable oxides are liable to deform in the rolling direction, while the hard oxides which they replace have the form of grains.
  • the inclusions chosen according to the invention significantly reduce the breakage rate of the drawn wire.
  • ferritic stainless steels in the form of wires comprising malleable inclusions, subjected to shaving have characteristics which ensure the formation of strands of steel wool of greater average length and allow shaving with much residual wires. more reduced, which saves material.
  • ferritic steel according to the invention comprising malleable inclusions can be polished with much more ease in order to obtain an improved polished surface state.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Powder Metallurgy (AREA)
  • Catalysts (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Transmission Devices (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
EP95400951A 1994-05-31 1995-04-27 Rostfreier ferritischer Stahl mit verbesserter Bearbeitbarkeit Expired - Lifetime EP0685567B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9406590A FR2720410B1 (fr) 1994-05-31 1994-05-31 Acier inoxydable ferritique à usinabilité améliorée.
FR9406590 1994-05-31

Publications (2)

Publication Number Publication Date
EP0685567A1 true EP0685567A1 (de) 1995-12-06
EP0685567B1 EP0685567B1 (de) 2000-05-17

Family

ID=9463677

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95400951A Expired - Lifetime EP0685567B1 (de) 1994-05-31 1995-04-27 Rostfreier ferritischer Stahl mit verbesserter Bearbeitbarkeit

Country Status (23)

Country Link
US (1) US5496515A (de)
EP (1) EP0685567B1 (de)
JP (1) JPH07331391A (de)
KR (1) KR100316543B1 (de)
AT (1) ATE193064T1 (de)
CA (1) CA2150445C (de)
CZ (1) CZ288539B6 (de)
DE (1) DE69516937T2 (de)
DK (1) DK0685567T3 (de)
EG (1) EG20895A (de)
ES (1) ES2147824T3 (de)
FI (1) FI111557B (de)
FR (1) FR2720410B1 (de)
GR (1) GR3034002T3 (de)
IL (1) IL113508A (de)
NO (1) NO310244B1 (de)
PL (1) PL179042B1 (de)
PT (1) PT685567E (de)
RO (1) RO116416B1 (de)
RU (1) RU2132886C1 (de)
SI (1) SI9500179B (de)
TW (1) TW364018B (de)
UA (1) UA39190C2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997022726A1 (en) * 1995-12-19 1997-06-26 Crs Holdings, Inc. Free machining stainless steel and components for automotive fuel and exhaust systems made therefrom
EP1130127A1 (de) * 2000-03-03 2001-09-05 Ugine-Savoie Imphy Heraufgeschwefelter rostfreier austenitischer Stahl mit erhöhter Bearbeitbarkeit und Korrosionsfestigkeit

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740783B1 (fr) * 1995-11-03 1998-03-06 Ugine Savoie Sa Acier inoxydable ferritique utilisable pour la production de laine d'acier
JP3777756B2 (ja) * 1997-11-12 2006-05-24 大同特殊鋼株式会社 フェライト系快削ステンレス鋼で製造した電子機器部品
FR2811683B1 (fr) * 2000-07-12 2002-08-30 Ugine Savoie Imphy Acier inoxydable ferritique utilisable pour des pieces ferromagnetiques
DE10143390B4 (de) * 2001-09-04 2014-12-24 Stahlwerk Ergste Westig Gmbh Kaltverformbarer korrosionsbeständiger Chromstahl
FR2832734B1 (fr) * 2001-11-26 2004-10-08 Usinor Acier inoxydable ferritique au soufre, utilisable pour des pieces ferromagnetiques
US7981561B2 (en) * 2005-06-15 2011-07-19 Ati Properties, Inc. Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells
US7842434B2 (en) * 2005-06-15 2010-11-30 Ati Properties, Inc. Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells
US8158057B2 (en) * 2005-06-15 2012-04-17 Ati Properties, Inc. Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells
DE102004063161B4 (de) * 2004-04-01 2006-02-02 Stahlwerk Ergste Westig Gmbh Kaltverformbarer Chromstahl
SE528680C2 (sv) * 2004-06-30 2007-01-23 Sandvik Intellectual Property Ferritisk blyfri rostfri stållegering
JP5387057B2 (ja) * 2008-03-07 2014-01-15 Ｊｆｅスチール株式会社 耐熱性と靭性に優れるフェライト系ステンレス鋼
DE102009038386A1 (de) 2009-08-24 2011-03-03 Stahlwerk Ergste Gmbh Weichmagnetischer ferritischer Chromstahl
UA111115C2 (uk) * 2012-04-02 2016-03-25 Ейкей Стіл Пропертіс, Інк. Рентабельна феритна нержавіюча сталь
US20140065005A1 (en) * 2012-08-31 2014-03-06 Eizo Yoshitake Ferritic Stainless Steel with Excellent Oxidation Resistance, Good High Temperature Strength, and Good Formability

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2456785A1 (fr) * 1979-05-17 1980-12-12 Daido Steel Co Ltd Acier de decolletage contenant des inclusions determinees et un procede de sa preparation
EP0403332A1 (de) * 1989-06-16 1990-12-19 Ugine Savoie Heraufgeschwefelter rostfreier austenitischer Stahl mit erhöhter Bearbeitbarkeit
EP0567365A1 (de) * 1992-04-17 1993-10-27 Ugine Savoie Rostfreier austenitischer Stahl mit guter Zerspanbarkeit und verbesserten Kaltverformungseigenschaften

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0215143A (ja) * 1988-06-30 1990-01-18 Aichi Steel Works Ltd 冷間鍛造用軟磁性ステンレス鋼
FR2706489B1 (fr) * 1993-06-14 1995-09-01 Ugine Savoie Sa Acier inoxydable martensitique à usinabilité améliorée.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2456785A1 (fr) * 1979-05-17 1980-12-12 Daido Steel Co Ltd Acier de decolletage contenant des inclusions determinees et un procede de sa preparation
EP0403332A1 (de) * 1989-06-16 1990-12-19 Ugine Savoie Heraufgeschwefelter rostfreier austenitischer Stahl mit erhöhter Bearbeitbarkeit
EP0567365A1 (de) * 1992-04-17 1993-10-27 Ugine Savoie Rostfreier austenitischer Stahl mit guter Zerspanbarkeit und verbesserten Kaltverformungseigenschaften

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997022726A1 (en) * 1995-12-19 1997-06-26 Crs Holdings, Inc. Free machining stainless steel and components for automotive fuel and exhaust systems made therefrom
EP1130127A1 (de) * 2000-03-03 2001-09-05 Ugine-Savoie Imphy Heraufgeschwefelter rostfreier austenitischer Stahl mit erhöhter Bearbeitbarkeit und Korrosionsfestigkeit
FR2805829A1 (fr) * 2000-03-03 2001-09-07 Ugine Savoie Imphy Acier inoxydable austenitique a haute usinabilite, resulfure, et comportant une resistance a la corrosion amelioree

Also Published As

Publication number Publication date
CZ129095A3 (en) 1995-12-13
FR2720410A1 (fr) 1995-12-01
NO310244B1 (no) 2001-06-11
NO952106L (no) 1995-12-01
DK0685567T3 (da) 2000-10-02
PT685567E (pt) 2000-10-31
US5496515A (en) 1996-03-05
GR3034002T3 (en) 2000-11-30
PL308694A1 (en) 1995-12-11
SI9500179A (en) 1996-02-29
IL113508A (en) 1999-03-12
FI111557B (fi) 2003-08-15
NO952106D0 (no) 1995-05-29
RU2132886C1 (ru) 1999-07-10
IL113508A0 (en) 1995-07-31
CZ288539B6 (cs) 2001-07-11
CA2150445C (fr) 2001-04-10
FR2720410B1 (fr) 1996-06-28
FI952660A0 (fi) 1995-05-31
DE69516937D1 (de) 2000-06-21
ATE193064T1 (de) 2000-06-15
RO116416B1 (ro) 2001-01-30
EP0685567B1 (de) 2000-05-17
EG20895A (en) 2000-05-31
KR100316543B1 (ko) 2002-02-19
TW364018B (en) 1999-07-11
RU95108546A (ru) 1997-04-20
DE69516937T2 (de) 2001-02-01
PL179042B1 (pl) 2000-07-31
FI952660A (fi) 1995-12-01
CA2150445A1 (fr) 1995-12-01
UA39190C2 (uk) 2001-06-15
SI9500179B (en) 2001-12-31
KR950032681A (ko) 1995-12-22
ES2147824T3 (es) 2000-10-01
JPH07331391A (ja) 1995-12-19

Similar Documents

Publication Publication Date Title
EP0685567B1 (de) Rostfreier ferritischer Stahl mit verbesserter Bearbeitbarkeit
EP1580287B1 (de) Stahl mit hervorragender zerspanbarkeit undherstellungsverfahren dafür
EP0859064B1 (de) Rostfreier Stahl zur Herstellung von gezogenem Draht, insbesondere von Reifenverstärkungsdraht, und dessen Herstellungsverfahren
CA2161740C (fr) Acier faiblement allie pour la fabrication de moules pour matieres plastiques ou pour caoutchouc
EP1751321B1 (de) Stahl mit hoher mechanischer festigkeit und verschleissfestigkeit
EP0629714B1 (de) Martensitisches rostfreies Stahl mit verbesserter Bearbeitbarkeit
KR100683923B1 (ko) 피삭성이 우수한 강
EP0787812B1 (de) Herstellungsverfahren eines Stahlschmiedestücks
WO2003083153A1 (fr) Bloc en acier pour la fabrication de moules d'injection de matiere plastique ou pour la fabrication de pieces pour le travail des metaux
WO2009034282A1 (fr) Acier inoxydable martensitique, procédé de fabrication de pièces réalisées en cet acier et pièces ainsi réalisées.
EP1299569B1 (de) Ferritischer rostfreier stahl verwendbar für ferromagnetische werkstücke
FR2832734A1 (fr) Acier inoxydable ferritique au soufre, utilisable pour des pieces ferromagnetiques
KR20070085739A (ko) 저탄소 쾌삭강
JP4502892B2 (ja) 被削性に優れたピニオン用高周波焼入れ用鋼及びその製造方法、並びに曲げ疲労特性に優れたピニオン
JP2001200341A (ja) 土砂摩耗特性に優れた工具鋼
JP4768117B2 (ja) 被削性および冷間加工性に優れた鋼、および機械部品
JP2007146212A (ja) 高強度かつ耐ねじり折損性に優れた工具鋼
JP2015036427A (ja) 機械構造用鋼
JPH09176784A (ja) 疲労特性および被削性に優れた肌焼鋼
JP2801138B2 (ja) 耐摩耗性・被削性に優れる焼結工具鋼

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 DK ES FR GB GR IE IT LI LU NL PT SE

17P Request for examination filed

Effective date: 19951222

17Q First examination report despatched

Effective date: 19980824

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

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

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

Owner name: UGINE-SAVOIE IMPHY

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

REF Corresponds to:

Ref document number: 193064

Country of ref document: AT

Date of ref document: 20000615

Kind code of ref document: T

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: FRENCH

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69516937

Country of ref document: DE

Date of ref document: 20000621

ITF It: translation for a ep patent filed

Owner name: BUGNION S.P.A.

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

Effective date: 20000727

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2147824

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20000720

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

NLT1 Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1

Owner name: UGITECH

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: UGITECH

Free format text: UGINE-SAVOIE IMPHY#AVENUE PAUL GIROD#73400 UGINE (FR) -TRANSFER TO- UGITECH#AVENUE PAUL GIROD#73400 UGINE (FR)

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

REG Reference to a national code

Ref country code: PT

Ref legal event code: PD4A

Owner name: UGITECH, FR

Effective date: 20070409

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

Ref country code: NL

Payment date: 20100318

Year of fee payment: 16

Ref country code: AT

Payment date: 20100317

Year of fee payment: 16

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

Ref country code: GR

Payment date: 20110323

Year of fee payment: 17

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20111101

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 193064

Country of ref document: AT

Kind code of ref document: T

Effective date: 20110427

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: 20111101

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

Ref country code: AT

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

Effective date: 20110427

REG Reference to a national code

Ref country code: GR

Ref legal event code: ML

Ref document number: 20000401688

Country of ref document: GR

Effective date: 20121102

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

Ref country code: GR

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

Effective date: 20121102

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

Ref country code: IE

Payment date: 20140324

Year of fee payment: 20

Ref country code: LU

Payment date: 20140318

Year of fee payment: 20

Ref country code: DK

Payment date: 20140317

Year of fee payment: 20

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

Ref country code: PT

Payment date: 20140320

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: 20140422

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: 20140417

Year of fee payment: 20

Ref country code: DE

Payment date: 20140411

Year of fee payment: 20

Ref country code: SE

Payment date: 20140414

Year of fee payment: 20

Ref country code: ES

Payment date: 20140422

Year of fee payment: 20

Ref country code: CH

Payment date: 20140414

Year of fee payment: 20

Ref country code: FR

Payment date: 20140417

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: 20140429

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69516937

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EUP

Effective date: 20150427

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: MAXIMUM VALIDITY LIMIT REACHED

Effective date: 20150427

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20150426

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

REG Reference to a national code

Ref country code: IE

Ref legal event code: MK9A

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

Ref country code: PT

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20150506

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20150426

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20150826

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

Ref country code: IE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20150427

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: 20150428