[go: up one dir, main page]

EP2353209A1 - Method for producing a semi-finished part and semi-finished part for electrical contacts and contact piece - Google Patents

Method for producing a semi-finished part and semi-finished part for electrical contacts and contact piece

Info

Publication number
EP2353209A1
EP2353209A1 EP09744077A EP09744077A EP2353209A1 EP 2353209 A1 EP2353209 A1 EP 2353209A1 EP 09744077 A EP09744077 A EP 09744077A EP 09744077 A EP09744077 A EP 09744077A EP 2353209 A1 EP2353209 A1 EP 2353209A1
Authority
EP
European Patent Office
Prior art keywords
silver
block
composite material
powder
strand
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
EP09744077A
Other languages
German (de)
French (fr)
Other versions
EP2353209B1 (en
Inventor
Helmut Heinzel
Andreas Kraus
Evelyn MAHLE-MÖSSNER
Johann Wenz
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.)
Doduco Contacts and Refining GmbH
Original Assignee
Doduco GmbH and Co
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 Doduco GmbH and Co filed Critical Doduco GmbH and Co
Publication of EP2353209A1 publication Critical patent/EP2353209A1/en
Application granted granted Critical
Publication of EP2353209B1 publication Critical patent/EP2353209B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps

Definitions

  • the object of the invention is to show how cost-effective a strand-shaped semifinished product for electrical contacts can be produced, which has an upper surface intended for electrical contact of a composite material based on silver and a lower surface of silver or a silver alloy.
  • a block of a composite material based on silver is first produced by powder metallurgy, for example by mixing silver powder with metal oxide powder, pressing it and then sintering it. It is also possible, for example, to mix silver powder with a base metal powder, to compress and then to sinter in an oxidizing atmosphere, so that metal oxide particles are formed by oxidation of the non-noble metal particles.
  • the block produced by powder metallurgy is sheathed with silver powder or powder of a silver-based alloy and then pressed to compact the powder sheath, preferably at pressures of 500 bar to 2500 bar.
  • the powder of silver or of a silver-based alloy may also be admixed with base metal powder so as to produce by powder metallurgical means a jacket of a silver-based alloy, that is, an alloy consisting predominantly of silver.
  • the preferably isostatically pressed block is sintered in a further production step and then formed by extrusion, preferably hot-formed. Thereafter, at least one sub-strand having a composite top surface and a silver or silver-based bottom surface is produced.
  • Preferably, two such partial strands are produced by dividing the strand formed by extrusion in its longitudinal direction. It is of course possible to make further longitudinal divisions perpendicular to the division plane. The statement that preferably two partial strands are generated is therefore to be understood in the sense of at least two. But it is also possible to produce only a partial strand by the silver or the silver alloy is removed on one side of the strand formed by extrusion, for example by milling, and so a surface of composite material is exposed.
  • an approximately cylindrical block can be produced by isostatic pressing and subsequent sintering, the lateral surface of which is turned off prior to extrusion in order to adapt to the dimensions of an extrusion die.
  • the block is formed by extrusion from a cylindrical shape into a rectangular section shape.
  • the two flanks of the strand which extend from the contacting top side to the well solderable and weldable underside of the strand, trimmed, in particular by cutting or milling.
  • the trimming of the flanks of the strand formed by extrusion can optionally be carried out before or after the longitudinal division of the strand.
  • the strand produced by extrusion is reduced in its thickness by rolling, in particular by cold rolling.
  • a strip-shaped semifinished product can be produced in a particularly favorable manner.
  • the rolling takes place after the longitudinal splitting of the strand.
  • the strand is reduced in its thickness by at most 50% of its original thickness during rolling, in order to avoid that mechanical properties of the semi-finished product are adversely affected.
  • the thickness is reduced by more than 50%, there is a risk of the material becoming too hard.
  • the strand is reduced in its thickness by 30 to 50% of its original thickness during rolling.
  • the method uses a composite that is a silver-metal oxide composite.
  • Tin oxides and / or zinc oxide and / or indium oxide and / or cadmium oxide can be used in particular as metal oxides.
  • the use of bismuth oxide or tungsten oxide is also possible.
  • the composite used in the invention contains several metal oxides. Equally well it is possible that the composite material only contains a single metal oxide.
  • the metal oxide component of the composite material preferably consists predominantly of tin oxide.
  • the silver-based contact material used may also contain carbon, for example in the form of graphite.
  • the composite block encased in base metal powder is pressed in a cold isostatic manner.
  • the cold isostatic pressing can be carried out easily at room temperature.
  • the cold isostatic pressing can also be carried out at elevated temperatures, but in any case it is preferred that the cold isostatic pressing is carried out at a temperature at which the base metal is at best oxidized to a negligible extent in the presence of atmospheric oxygen.
  • the composite block is sheathed with silver powder and then cold-statically pressed.
  • the isostatically pressed block is then sintered under air at 800 ° C. to 900 ° C., for example for 2 to 5 hours.
  • the sintered block is then turned off so that it can be accurately used in an extruder.
  • the block is then extruded at a
  • Temperature of 750 ° to 775 ° C transformed from its cylindrical shape into a shape with a rectangular cross-section.
  • a cylindrical block of silver-based contact material is produced.
  • This block can for example consist of 2 to 5 percent by weight of carbon and otherwise of silver.
  • the composite block is clad with powder of silver or silver-based alloy and sintered at 750 to 775 ° C for several hours. The others

Landscapes

  • Powder Metallurgy (AREA)
  • Contacts (AREA)
  • Manufacture Of Switches (AREA)

Abstract

The invention relates to a method for producing a strand-like, particularly band-like semi-finished part for electrical contacts, wherein the semi-finished part has a top side intended for making the electrical contact, said top side made from a silver-based composite material in which one or multiple metal oxides or carbon are embedded, and has a carrier layer supporting the composite material made of silver or a silver-based alloy, said method having the following steps: - Powder-metallurgic production of a block made from the silver-based composite material, - Encasing of the block made of the composite material with a powder made primarily of silver - Compressing the block, encased by the metal powder, to condense the metal powder, - Sintering the compressed block, - Reshaping the sintered block by extrusion pressing, - Creating a partial strand with a top side made from composite material and a bottom side made from silver or a silver-based alloy.

Description

Verfahren zur Herstellung eines Halbzeugs und Halbzeug für elektrische Process for producing a semifinished product and semifinished product for electrical

Kontakte sowie KontaktstückContacts and contact piece

Beschreibungdescription

Die Erfindung betrifft ein Verfahren zur Herstellung eines Halbzeugs für elektrische Kontakte mit einer für die elektrische Kontaktgabe bestimmten Oberseite aus einem Verbundwerkstoff auf Silberbasis, in welchem eines oder mehrere Metalloxide oder Kohlenstoff eingelagert sind, und einer gut löt- und schweißbaren Trägerschicht aus Silber oder einer Silberlegierung, auf welcher der Verbundwerkstoff liegt.The invention relates to a method for producing a semifinished product for electrical contacts with an intended for the electrical contact top of a composite material based on silver, in which one or more metal oxides or carbon are embedded, and a good solderable and weldable support layer of silver or a silver alloy on which the composite is located.

Verbundwerkstoffe aus Silberbasis mit eingelagerten Metalloxid- oder Kohlenstoffpartikeln lassen sich nicht oder nur sehr schlecht verschweißen und verlöten. Bei der Herstellung von Halbzeugen für elektrische Kontakte wird deshalb eine Unterseite des Kontaktwerkstoffs mit einer gut löt- oder schweißbaren Trägerschicht aus Silber oder einer Silberlegierung versehen. Derartige Trägerschichten werden üblicherweise durch Aufplattieren eines Silberbandes auf Kontaktwerkstoffe aufgebracht. Bekannt ist es auch eine Herstellung in Einzelpresstechnik, bei der auf eine Schicht aus Silberpulver eine Schicht aus Kontaktwerkstoffpulver aufgebracht und durch anschließendes Pressen und Sintern ein Halbzeug mit einer Vorderseite aus Kontaktwerkstoff und einer Rückseite aus Silber erzeugt wird. Dabei können die beiden PuI- verschichten gemeinsam verpresst werden oder zunächst eine Schicht aus nur einem Pulver vorgepresst und anschließend das zweite Pulver aufgebracht und verpresst werden. Nachteilig an einer Herstellung in Einzelpresstechnik ist jedoch, dass sich kein bandförmiges Halbzeug herstellen lässt.Composite materials of silver-based with embedded metal oxide or carbon particles can not or only very poorly welded and soldered. In the production of semifinished products for electrical contacts, therefore, a lower side of the contact material is provided with a good solderable or weldable carrier layer of silver or a silver alloy. Such carrier layers are usually applied by plating a silver band on contact materials. It is also known a production in single-press technology, in which applied to a layer of silver powder, a layer of contact material powder and by subsequent pressing and sintering a semifinished product is produced with a front of contact material and a back of silver. In this case, the two layers can be compressed together or first a layer of only one powder is pre-pressed and then the second powder is applied and pressed. However, a disadvantage of production in single-press technology is that no ribbon-shaped semifinished product can be produced.

Eine weitere bekannte Möglichkeit besteht darin, einen Kontaktwerkstoffblock mit einem Silberrohr zu ummanteln und anschließend durch Verbundstrangpressen umzuformen. Durch Längsteilen eines auf diese Weise hergestellten Verbundstrangs erhält man ein Halbzeug mit einer Oberseite aus Kontaktwerkstoff und einer Unterseite aus Silber. Die Herstellung eines geeigneten Silberrohres und das Einpassen eines Kontaktwerkstoffblocks in ein Silberrohr sind jedoch sehr aufwändig.Another known possibility is to coat a contact material block with a silver tube and then reshape by composite extrusion. By longitudinally dividing a composite strand produced in this way, a semifinished product is obtained with a top surface of contact material and a bottom surface of silver. However, the production of a suitable silver tube and the fitting of a contact material block in a silver tube are very expensive.

Aufgabe der Erfindung ist es, einen Weg aufzuzeigen, wie kostengünstig ein strang- förmiges Halbzeug für elektrische Kontakte hergestellt werden kann, das eine für die elektrische Kontaktgabe bestimmte Oberseite aus einem Verbundwerkstoff auf SiI- berbasis und eine Unterseite aus Silber oder einer Silberlegierung hat.The object of the invention is to show how cost-effective a strand-shaped semifinished product for electrical contacts can be produced, which has an upper surface intended for electrical contact of a composite material based on silver and a lower surface of silver or a silver alloy.

Diese Aufgabe wird durch ein Verfahren mit den im Anspruch 1 angegebenen Merkmalen gelöst. Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.This object is achieved by a method having the features specified in claim 1. Advantageous developments of the invention are the subject of the dependent claims.

Bei einem erfindungsgemäßen Verfahren wird zunächst pulvermetallurgisch ein Block aus einem Verbundwerkstoff auf Silberbasis hergestellt, beispielsweise indem Silberpulver mit Metalloxidpulver vermischt, verpresst und anschließend gesintert wird. Möglich ist es beispielsweise auch, Silberpulver mit einem unedlen Metallpulver zu vermischen, zu verpressen und anschließend in einer oxidierenden Atmosphäre zu sintern, so dass durch Oxidation der unedlen Metallpartikel Metalloxidpartikel entstehen. In einem zweiten Schritt wird der pulvermetallurgisch hergestellte Block mit Silberpulver oder Pulver aus einer Silberbasislegierung ummantelt und anschließend zum Verdichten des Pulvermantels gepresst, bevorzugt bei Drücken von 500 bar bis 2500 bar. Dem Pulver aus Silber oder einer Silberbasislegierung kann dabei auch unedles Metallpulver beigemischt sein, um so auf pulvermetallurgischem Weg einen Mantel aus einer Silberbasislegierung, also einer überwiegend aus Silber bestehenden Legierung, zu erzeugen.In a method according to the invention, a block of a composite material based on silver is first produced by powder metallurgy, for example by mixing silver powder with metal oxide powder, pressing it and then sintering it. It is also possible, for example, to mix silver powder with a base metal powder, to compress and then to sinter in an oxidizing atmosphere, so that metal oxide particles are formed by oxidation of the non-noble metal particles. In a second step, the block produced by powder metallurgy is sheathed with silver powder or powder of a silver-based alloy and then pressed to compact the powder sheath, preferably at pressures of 500 bar to 2500 bar. The powder of silver or of a silver-based alloy may also be admixed with base metal powder so as to produce by powder metallurgical means a jacket of a silver-based alloy, that is, an alloy consisting predominantly of silver.

Der bevorzugt isostatisch gepresste Block wird in einem weiteren Herstellungsschritt gesintert und anschließend durch Strangpressen umgeformt, vorzugsweise warmumgeformt. Danach wird mindestens ein Teilstrang mit einer Oberseite aus Verbundwerkstoff und einer Unterseite aus Silber oder einer Silberbasislegierung erzeugt. Bevorzugt werden zwei derartige Teilstränge erzeugt, indem der durch Strangpressen gebildete Strang in seiner Längsrichtung geteilt wird. Dabei ist es selbstver- ständlich möglich, senkrecht zu der Teilungsebene weitere Längsteilungen vorzunehmen. Die Angabe, dass bevorzugt zwei Teilstränge erzeugt werden, ist deshalb im Sinne von mindestens zwei zu verstehen. Möglich ist es aber auch, nur einen Teilstrang zu erzeugen, indem auf einer Seite des durch Strangpressen gebildeten Strangs das Silber oder die Silberlegierung abgetragen wird, beispielsweise durch Fräsen, und so eine Oberfläche aus Verbundwerkstoff freigelegt wird.The preferably isostatically pressed block is sintered in a further production step and then formed by extrusion, preferably hot-formed. Thereafter, at least one sub-strand having a composite top surface and a silver or silver-based bottom surface is produced. Preferably, two such partial strands are produced by dividing the strand formed by extrusion in its longitudinal direction. It is of course possible to make further longitudinal divisions perpendicular to the division plane. The statement that preferably two partial strands are generated is therefore to be understood in the sense of at least two. But it is also possible to produce only a partial strand by the silver or the silver alloy is removed on one side of the strand formed by extrusion, for example by milling, and so a surface of composite material is exposed.

Nach dem Sintern haftet das Silber bzw. die Silberlegierung in der Regel bereits ausreichend stark an dem Block, so dass dieser formgebend bearbeitet werden kann, damit er passgenau in ein Strangpresswerkzeug eingesetzt werden kann. Beispiels- weise kann durch isostatisches Pressen und anschließendes Sintern ein annährend zylindrischer Block hergestellt werden, dessen Mantelfläche vor dem Strangpressen abgedreht wird, um eine Anpassung an die Maße eines Strangpresswerkzeugs zu erreichen. Bevorzugt wird der Block durch das Strangpressen von einer zylindrischen Form in eine Form mit rechteckigem Querschnitt umgeformt.After sintering, the silver or silver alloy usually already adheres sufficiently strong to the block, so that it can be shaped shaping, so that it can be accurately inserted into an extrusion die. For example, an approximately cylindrical block can be produced by isostatic pressing and subsequent sintering, the lateral surface of which is turned off prior to extrusion in order to adapt to the dimensions of an extrusion die. Preferably, the block is formed by extrusion from a cylindrical shape into a rectangular section shape.

Das Strangpressen wird bevorzugt bei Temperaturen von mindestens 6000C, insbesondere zwischen 7000C und 9500C, durchgeführt. Diese Maßnahme hat den Vorteil, dass durch das Strangpressen eine vorteilhaft hohe Verdichtung erreicht wird. Vor- teilhaft lässt sich insbesondere erreichen, dass der Strang eine relative Dichte von 99,9 % der theoretisch möglichen Dichte hat.Extrusion is preferably carried out at temperatures of at least 600 ° C., in particular between 700 ° C. and 950 ° C. This measure has the advantage that an advantageously high compression is achieved by the extrusion. In front- In part, it can be achieved in particular that the strand has a relative density of 99.9% of the theoretically possible density.

Durch Teilen des durch Strangpressen gebildeten Strangs in seiner Längsrichtung entsteht ein Halbzeug mit einer Schicht aus dem Verbundwerkstoff auf Silberbasis, welche die zur Kontaktgabe bestimmte Oberseite des Halbzeugs bildet, und einer gut löt- und schweißbaren Trägerschicht als Unterseite.By dividing the strand formed by extrusion in its longitudinal direction, a semifinished product with a layer of the composite material based on silver, which forms the top of the semifinished product for making contact, and a good solderable and weldable carrier layer as the bottom.

Bevorzugt werden die beiden Flanken des Strangs, welche sich von der kontaktge- benden Oberseite bis zur gut löt- und schweißbaren Unterseite des Strangs erstrecken, getrimmt, insbesondere durch Schneiden oder Fräsen. Auf diese Weise kann sichergestellt werden, dass bei der weiteren Verarbeitung des Halbzeugs oder beim späteren Gebrauch eines mit dem Halbzeug hergestellten elektrischen Kontakts kein Material der Trägerschicht auf die Kontaktfläche gelangt und deren Funktion beein- trächtigt. Das Trimmen der Flanken des durch Strangpressen gebildeten Strangs kann wahlweise vor oder nach der Längsteilung des Strangs durchgeführt werden.Preferably, the two flanks of the strand, which extend from the contacting top side to the well solderable and weldable underside of the strand, trimmed, in particular by cutting or milling. In this way it can be ensured that during the further processing of the semifinished product or during subsequent use of an electrical contact made with the semifinished product, no material of the carrier layer reaches the contact surface and impairs its function. The trimming of the flanks of the strand formed by extrusion can optionally be carried out before or after the longitudinal division of the strand.

Bevorzugt wird der durch Strangpressen erzeugte Strang in seiner Dicke durch Walzen, insbesondere durch Kaltwalzen, reduziert. Auf diese Weise lässt sich besonders günstig ein bandförmiges Halbzeug herstellen. Bevorzugt ist dabei insbesondere, dass das Walzen nach dem Längsteilen des Strangs erfolgt. Bevorzugt ist ferner, dass der Strang beim Walzen in seiner Dicke um höchstens 50% seiner ursprünglichen Dicke reduziert wird, um zu vermeiden dass mechanische Eigenschaften des Halbzeugs nachteilig beeinträchtigt werden. Insbesondere besteht bei einer Redukti- on der Dicke um mehr als 50% die Gefahr, dass das Material zu hart wird. Besonders bevorzugt wird der Strang beim Walzen in seiner Dicke um 30 bis 50% seiner ursprünglichen Dicke reduziert.Preferably, the strand produced by extrusion is reduced in its thickness by rolling, in particular by cold rolling. In this way, a strip-shaped semifinished product can be produced in a particularly favorable manner. It is particularly preferred that the rolling takes place after the longitudinal splitting of the strand. It is further preferred that the strand is reduced in its thickness by at most 50% of its original thickness during rolling, in order to avoid that mechanical properties of the semi-finished product are adversely affected. In particular, if the thickness is reduced by more than 50%, there is a risk of the material becoming too hard. Particularly preferably, the strand is reduced in its thickness by 30 to 50% of its original thickness during rolling.

Bevorzugt wird bei dem Verfahren ein Verbundwerkstoff verwendet, der ein Silber- Metalloxid-Verbundwerkstoff ist. Als Metalloxide können insbesondere Zinnoxid und/oder Zinkoxid und/oder Indiumoxid und/oder Kadmiumoxid verwendet werden. Möglich sind beispielsweise auch die Verwendung von Bismutoxid oder Wolframoxid. Dabei ist es möglich, dass der erfindungsgemäß verwendete Verbundwerkstoff mehrere Metalloxide enthält. Ebenso gut ist es möglich, dass der Verbundwerkstoff nur ein einziges Metalloxid enthält. Bevorzugt besteht die Metalloxidkomponente des Verbundwerkstoffs überwiegend aus Zinnoxid. Als Alternative oder zusätzlich zu Metalloxiden kann der verwendete Kontaktwerkstoff auf Silberbasis auch Kohlenstoff enthalten, beispielsweise in Form von Grafit.Preferably, the method uses a composite that is a silver-metal oxide composite. Tin oxides and / or zinc oxide and / or indium oxide and / or cadmium oxide can be used in particular as metal oxides. For example, the use of bismuth oxide or tungsten oxide is also possible. It is possible that the composite used in the invention contains several metal oxides. Equally well it is possible that the composite material only contains a single metal oxide. The metal oxide component of the composite material preferably consists predominantly of tin oxide. As an alternative or in addition to metal oxides, the silver-based contact material used may also contain carbon, for example in the form of graphite.

Bevorzugt wird der mit unedlem Metallpulver ummantelte Verbundwerkstoffblock kal- tisostatisch gepresst. Das kaltisostatische Pressen kann problemlos bei Raumtemperatur durchgeführt werden. Prinzipiell kann das kaltisostatische Pressen auch bei erhöhten Temperaturen durchgeführt werden, bevorzugt ist aber jedenfalls, dass das kaltisostatische Pressen bei einer Temperatur durchgeführt wird, bei welcher das unedle Metall in Anwesenheit von Luftsauerstoff allenfalls unwesentlich oxidiert wird.Preferably, the composite block encased in base metal powder is pressed in a cold isostatic manner. The cold isostatic pressing can be carried out easily at room temperature. In principle, the cold isostatic pressing can also be carried out at elevated temperatures, but in any case it is preferred that the cold isostatic pressing is carried out at a temperature at which the base metal is at best oxidized to a negligible extent in the presence of atmospheric oxygen.

Ausführungsbeispiele:EXAMPLES

1. Durch Mischen von Silberpulver und Zinnoxidpulver, kaltisostatisches Pressen und anschließendes Sintern wird ein zylindrischer Block aus einem Kontaktwerkstoff auf Silberbasis hergestellt. Dieser Block kann beispielweise zu 8 bis 14 Gewichtsprozent aus Metalloxid und im übrigen aus Silber bestehen.1. By mixing silver powder and tin oxide powder, cold isostatic pressing and subsequent sintering, a cylindrical block of silver-based contact material is produced. This block may for example consist of 8 to 14 weight percent of metal oxide and the rest of silver.

Der Verbundwerkstoffblock wird mit Silberpulver ummantelt und dann kalti- sostatisch verpresst. Der isostatisch gepresste Block wird dann unter Luft bei 8000C bis 9000C gesintert, beispielsweise für 2 bis 5 Stunden. Der gesinterte Block wird anschließend abgedreht, damit er maßgenau in eine Strangpresse eingesetzt werden kann. Der Block wird dann durch Strangpressen bei einerThe composite block is sheathed with silver powder and then cold-statically pressed. The isostatically pressed block is then sintered under air at 800 ° C. to 900 ° C., for example for 2 to 5 hours. The sintered block is then turned off so that it can be accurately used in an extruder. The block is then extruded at a

Temperatur von 750° bis 775° C von seiner zylindrischen Form in eine Form mit rechteckigem Querschnitt umgeformt.Temperature of 750 ° to 775 ° C transformed from its cylindrical shape into a shape with a rectangular cross-section.

Die Flanken des so erzeugten Strangs werden abgeschnitten und der Strang anschließend in Längsrichtung geteilt. Die auf diese Weise gebildeten Teilstränge werden anschließend kaltgewalzt und dabei in ihrer Dicke um 30 bis 50%, beispielsweise um 45%, reduziert. Das aus diese Weise hergestellte bandförmige Halbzeug hat eine Trägerschicht, deren Dicke etwa 10% bis 20% der Dicker der Verbundwerkstoffschicht ausmacht, und kann zur Herstellung elektrischer Kontaktstücke verwendet werden, indem von dem Halbzeug Abschnitte abgeschnitten und gemäß den Anforderungen einer spezifischen Anwendung umgeformt werden.The flanks of the strand thus produced are cut off and the strand is then split longitudinally. The partial strands formed in this way are then cold-rolled and thereby reduced in thickness by 30 to 50%, for example by 45%. The band-shaped semi-finished product produced in this way has a carrier layer whose thickness makes up about 10% to 20% of the thickness of the composite material layer, and can be used for the production electrical contacts may be used by cutting sections of the semifinished product and reshaping them to the requirements of a specific application.

Durch Mischen von Silberpulver und Graphitpulver, kaltisostatisches Pressen, anschließendes Sintern wird ein zylindrischer Block aus einem Kontaktwerkstoff auf Silberbasis hergestellt. Dieser Block kann beispielweise zu 2 bis 5 Gewichtsprozent aus Kohlenstoff und im Übrigen aus Silber bestehen. Der Verbundwerkstoffblock wird mit Pulver aus Silber oder einer Silberbasislegie- rung ummantelt und einige Stunden bei 750° bis 775° gesintert. Die weitereBy mixing silver powder and graphite powder, cold isostatic pressing, followed by sintering, a cylindrical block of silver-based contact material is produced. This block can for example consist of 2 to 5 percent by weight of carbon and otherwise of silver. The composite block is clad with powder of silver or silver-based alloy and sintered at 750 to 775 ° C for several hours. The others

Verarbeitung des gesinterten Blocks kann wie bei dem vorstehend beschriebenen Ausführungsbeispiel erfolgen. Processing of the sintered block may be performed as in the above-described embodiment.

Claims

Patentansprüche claims 1. Verfahren zur Herstellung eines strangförmigen, insbesondere bandförmigen, Halbzeugs für elektrische Kontakte, wobei das Halbzeug eine für die elektrische Kontaktgabe bestimmte Oberseite aus einem Verbundwerkstoff auf Silberbasis hat, in welchem eines oder mehrere Metalloxide oder Kohlenstoff eingelagert sind, und einer den Verbundwerkstoff tragenden gut löt- oder schweißbaren Trägerschicht aus Silber oder einer Silberbasislegierung hat, mit den folgenden Schritten: - Pulvermetallurgisches Herstellen eines Blocks aus dem Verbundwerkstoff auf Silberbasis,1. A method for producing a strand-shaped, in particular band-shaped, semifinished product for electrical contacts, wherein the semifinished has a certain electrical contact top of a composite material based on silver, in which one or more metal oxides or carbon are embedded, and a composite material carrying well solderable or weldable support layer of silver or a silver-based alloy, comprising the following steps: - powder metallurgy producing a block of the composite material based on silver, - Ummanteln des Blocks aus dem Verbundwerkstoff mit einem Pulver das ü- berwiegend aus Silber besteht,Sheathing the block of composite material with a powder consisting predominantly of silver, - Pressen des mit dem Metallpulver ummantelten Blocks zum Verdichten des Metallpulvers,Pressing the metal powder-coated block to compact the metal powder, - Sintern des gepressten Blocks,Sintering the pressed block, - Umformen des gesinterten Blocks durch Strangpressen,- Forming of the sintered block by extrusion, - Erzeugen eines Teilstrangs mit einer Oberseite aus Verbundwerkstoff und einer Unterseite aus Silber oder einer Silberbasislegierung.- Creating a partial strand with a composite top and a bottom made of silver or a silver-based alloy. 2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass zwei Teilstränge erzeugt werden, indem der durch Strangpressen gebildete Strang in seiner Längsrichtung geteilt wird.2. The method according to claim 1, characterized in that two partial strands are produced by dividing the strand formed by extrusion in its longitudinal direction. 3. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Verbundwerkstoff ein Silber-Metalloxid Verbundwerkstoff ist.3. The method according to any one of the preceding claims, characterized in that the composite material is a silver-metal oxide composite material. 4. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Verbundwerkstoff auf Silberbasis Zinnoxid und/oder Zinkoxid und/oder Indiumoxid und/oder Kadmiumoxid enthält.4. The method according to any one of the preceding claims, characterized in that the composite material based on silver tin oxide and / or zinc oxide and / or indium oxide and / or cadmium oxide. 5. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass zum Ummanteln des Blocks aus dem Verbundwerkstoff auf Silberbasis eine Mischung aus Silberpulver und unedlem Metallpulver verwendet wird. 5. The method according to any one of the preceding claims, characterized in that for enveloping the block of the composite material based on silver, a mixture of silver powder and base metal powder is used. 6. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass zum Ummanteln des Blocks aus dem Verbundwerkstoff auf Silberbasis Silberpulver oder Pulver aus einer Silberbasislegierung verwendet wird.6. The method according to any one of the preceding claims, characterized in that silver powder or powder of a silver-based alloy is used for wrapping the block of the composite material based on silver. 7. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der ummantelte Block isostatisch, vorzugsweise kaltisostatisch, gepresst wird.7. The method according to any one of the preceding claims, characterized in that the coated block is isostatically, preferably cold isostatically pressed. 8. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Strangpressen bei Temperaturen von mindestens 6000C, insbesondere zwischen 7000C und 950°C, durchgeführt wird.8. The method according to any one of the preceding claims, characterized in that the extrusion at temperatures of at least 600 0 C, in particular between 700 0 C and 950 ° C, is performed. 9. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Dicke des durch Strangpressen erzeugten Strangs oder eines Teilstrangs durch Walzen, insbesondere durch Kaltwalzen, reduziert wird.9. The method according to any one of the preceding claims, characterized in that the thickness of the strand produced by extrusion or a sub-strand by rolling, in particular by cold rolling, is reduced. 10. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass beim Walzen die10. The method according to claim 8, characterized in that when rolling the Dicke um höchstens 50% reduziert wird.Thickness is reduced by at most 50%. 11.Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die beiden Flanken des Stranges, welche sich von der Kontakt gebenden Oberseite bis zur von der Trägerschicht gebildeten gut löt- und schweißbaren Unterseite des Stranges erstrecken, getrimmt werden, insbesondere durch Schnei- den oder Fräsen.11.Verfahren according to any one of the preceding claims, characterized in that the two edges of the strand, which extend from the contact-giving top to the well-soldered and weldable underside of the strand formed by the carrier layer, are trimmed, in particular by cutting the or milling. 12. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass ein annährend zylindrischer gesinterter Block hergestellt wird, dessen Mantelfläche vor dem Strangpressen abgedreht wird.12. The method according to any one of the preceding claims, characterized in that an approximately cylindrical sintered block is produced, whose lateral surface is turned off before the extrusion. 13. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Block durch das Strangpressen von einer zylindrischen Form in eine Form mit rechteckigem Querschnitt umgeformt wird. 13. The method according to any one of the preceding claims, characterized in that the block is formed by the extrusion of a cylindrical shape into a shape with a rectangular cross-section. 14. Halbzeug, hergestellt nach einem Verfahren gemäß einem der vorstehenden Ansprüche, insbesondere bandförmiges Halbzeug.14. Semi-finished product, produced by a method according to one of the preceding claims, in particular band-shaped semi-finished product. 15. Elektrisches Kontaktstück, hergestellt durch Abschneiden vom dem Halbzeug gemäß Anspruch 14 und Umformen des Abschnitts. 15. Electrical contact piece, produced by cutting off the semifinished product according to claim 14 and forming the section.
EP09744077.0A 2008-11-06 2009-10-27 Method for producing a semi-finished part for electrical contacts Active EP2353209B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008056264A DE102008056264A1 (en) 2008-11-06 2008-11-06 Process for producing a semifinished product and semifinished product for electrical contacts and contact piece
PCT/EP2009/007662 WO2010051923A1 (en) 2008-11-06 2009-10-27 Method for producing a semi-finished part and semi-finished part for electrical contacts and contact piece

Publications (2)

Publication Number Publication Date
EP2353209A1 true EP2353209A1 (en) 2011-08-10
EP2353209B1 EP2353209B1 (en) 2017-04-19

Family

ID=41479248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09744077.0A Active EP2353209B1 (en) 2008-11-06 2009-10-27 Method for producing a semi-finished part for electrical contacts

Country Status (9)

Country Link
US (1) US8980166B2 (en)
EP (1) EP2353209B1 (en)
JP (1) JP5433703B2 (en)
CN (1) CN102204021A (en)
BR (1) BRPI0921361B1 (en)
DE (1) DE102008056264A1 (en)
PL (1) PL2353209T3 (en)
RU (1) RU2501133C2 (en)
WO (1) WO2010051923A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008056263A1 (en) * 2008-11-06 2010-05-27 Ami Doduco Gmbh Process for producing a semifinished product and semifinished product for electrical contacts and contact piece
DE102011111300A1 (en) * 2011-08-26 2013-02-28 Umicore Ag & Co. Kg Process for producing a semifinished product for electrical contacts and contact piece
KR101394615B1 (en) * 2011-09-30 2014-05-14 희성금속 주식회사 Method for manufacturing powder metallurgy based electric contact materials using extrusion
KR101559010B1 (en) 2012-12-28 2015-10-08 희성금속 주식회사 Manufacturing method of clad strip electric plate contact material using chip extrusion and electric plate contact material
CN103586470B (en) * 2013-11-22 2016-02-17 福达合金材料股份有限公司 Preparation method of siluer metal oxide graphite composite electric contact material and products thereof
KR101516520B1 (en) * 2014-02-24 2015-05-04 희성금속 주식회사 Clad strip electric contact material using pre internal oxidation
DE102021111558B4 (en) 2021-05-04 2022-12-01 Te Connectivity Germany Gmbh Process for processing a semi-finished product for an electrical contact element, semi-finished product for an electrical contact element
CN115447255A (en) * 2022-07-19 2022-12-09 郑州领胜科技有限公司 micro waterproof breathable film edge covering composite process
CN117127046B (en) * 2023-08-30 2024-04-16 昆明理工大学 Preparation method of SnO2@In2O3 reinforced silver-based composite material

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2322709A (en) * 1939-01-13 1943-06-22 Frederick C Owen Welding apparatus
GB1149768A (en) 1966-01-03 1969-04-23 Eugen Durrwachter Process and apparatus for manufacturing multi-layer extrusions
DE2143844C3 (en) * 1971-09-01 1979-09-13 Siemens Ag, 1000 Berlin U. 8000 Muenchen Process for the production of two-layer contact pieces as a molded part
US4243413A (en) * 1979-02-26 1981-01-06 Chugai Denki Kogyo Kabushiki-Kaisha Integrated Ag-SnO alloy electrical contact materials
DE3123357A1 (en) 1981-06-12 1982-12-30 Degussa Ag, 6000 Frankfurt "ELECTRICAL CONTACT"
JPS5873918A (en) * 1981-10-23 1983-05-04 田中貴金属工業株式会社 Method for manufacturing electrical contact materials
DE3304637A1 (en) 1983-02-10 1984-08-16 Siemens AG, 1000 Berlin und 8000 München SINTER CONTACT MATERIAL FOR LOW VOLTAGE SWITCHGEAR
JPS60255942A (en) * 1984-05-30 1985-12-17 Fuji Electric Corp Res & Dev Ltd Method for manufacturing Ag-SnO↓2-In↓2O↓3 contact material
JPS6237837U (en) * 1985-08-27 1987-03-06
US4622269A (en) 1985-12-30 1986-11-11 Gte Products Corporation Electrical contact and process for making the same
WO1989009478A1 (en) * 1988-03-26 1989-10-05 Doduco Gmbh + Co. Dr. Eugen Dürrwächter Semifinished product for electrical contacts, made of a composite material based on silver and tin oxide, and powder metallurgical process for producing it
DE4111683A1 (en) * 1991-04-10 1992-10-22 Duerrwaechter E Dr Doduco MATERIAL FOR ELECTRICAL CONTACTS MADE OF SILVER WITH CARBON
US5281176A (en) * 1991-07-22 1994-01-25 Daido Tokushuko Kabushiki Kaisha Contact member with composite sintered metal paste strip having 1-5 wt % carbon diffusion bonded therein
DE4319137A1 (en) * 1992-06-10 1993-12-16 Duerrwaechter E Dr Doduco Material for electrical contacts based on silver-tin oxide or siler-zinc oxide
DE19523922A1 (en) * 1995-04-26 1996-10-31 Duerrwaechter E Dr Doduco Electrical contact material prodn. for low and middle voltage applications
DE19530512C1 (en) 1995-08-18 1996-10-17 Siemens Ag Electrical layered contact element used in weak current relays
SE506606C2 (en) * 1996-05-31 1998-01-19 Ericsson Telefon Ab L M Elastomer contact between two movable, separable electrical circuits
KR100289987B1 (en) * 1998-02-18 2001-05-15 김화중 The electric contack point is made of Ag or Ag-Ni
EP1233469A3 (en) * 2001-01-26 2003-07-30 Spinner GmbH Elektrotechnische Fabrik Waveguide fitting
DE10261303B3 (en) * 2002-12-27 2004-06-24 Wieland-Werke Ag Electrically conducting composite material used in automotive applications as electrical contact components, such as connectors or connections, comprises a metal strip and a contact layer containing carbon powder and a further additive
US6965167B2 (en) * 2003-06-17 2005-11-15 Inpaq Technology Co., Ltd. Laminated chip electronic device and method of manufacturing the same
US7842274B2 (en) * 2006-03-31 2010-11-30 Umicore, S.A. Process for manufacture of silver-based particles and electrical contact materials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010051923A1 *

Also Published As

Publication number Publication date
JP2012507833A (en) 2012-03-29
RU2501133C2 (en) 2013-12-10
BRPI0921361B1 (en) 2020-10-20
JP5433703B2 (en) 2014-03-05
EP2353209B1 (en) 2017-04-19
US8980166B2 (en) 2015-03-17
CN102204021A (en) 2011-09-28
PL2353209T3 (en) 2017-09-29
US20110243783A1 (en) 2011-10-06
WO2010051923A1 (en) 2010-05-14
DE102008056264A1 (en) 2010-05-27
RU2011118848A (en) 2012-12-20
BRPI0921361A2 (en) 2020-06-02

Similar Documents

Publication Publication Date Title
EP2353209B1 (en) Method for producing a semi-finished part for electrical contacts
EP2346543B1 (en) Method for producing a semi-finished part
DE2659012C3 (en) Process for producing a sintered contact material from silver and embedded metal oxides
EP0440620B1 (en) Semifinished product for electrical contacts, made of a composite material based on silver and tin oxide, and powder metallurgical process for producing it
EP2747917A1 (en) Method for producing a semifinished product for electrical contacts and contact piece
DE4111683C2 (en)
EP2524384B1 (en) Electrical contact element and method for producing it
WO2008003275A1 (en) Method for producing molded parts from dispersion-strengthened metal alloys
EP0660964B1 (en) Material for electric contacts based on silver-tin oxide or silver-zinc oxide and process for its production
DE2747089C2 (en)
DE102011009625B4 (en) Process for producing a copper-containing silver alloy for a jewelry ring
EP1043409B1 (en) Composite material prepared by powder metallurgy
CH665729A5 (en) COMPOSITE FOR ELECTRICAL SWITCHING CONTACTS.
EP0338401B1 (en) Powder-metallurgical process for the production of a semi-finished product for electrical contacts made from a composite material based on silver and iron
CH618044A5 (en) Body of composite material in web or sheet form and production process for it
DE2540999B2 (en) Electrical plug contact with a contact layer made of a silver-palladium alloy
DE2351226C3 (en) Metallic embedded composite material and manufacturing process for this
DE1533230B1 (en) Metal-graphite composite
EP1387370A1 (en) Semi-finished band-shaped product
DE102015206396A1 (en) Method for producing a composite component
DE3232627A1 (en) Material for electrical contacts
EP0916146A1 (en) Method of producing a product from a silver-based contact material, contact material and product produced therefrom
DE1237272B (en) Lubricant in the powder metallurgical production of plastically deformable silver graphite workpieces for electrotechnical purposes by extrusion
DE2351226B2 (en) METALLIC COMPOSITE STORAGE MATERIAL AND THE MANUFACTURING PROCESS FOR IT
DE19848323A1 (en) Production of a composite material comprises heat treating a longitudinally extended base body made of two metallic materials

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: 20110601

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20160415

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20161216

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 886765

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170515

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BOVARD AG PATENT- UND MARKENANWAELTE, CH

Ref country code: CH

Ref legal event code: PFA

Owner name: DODUCO CONTACTS AND REFINING GMBH, DE

Free format text: FORMER OWNER: DODUCO GMBH, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502009013890

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502009013890

Country of ref document: DE

Representative=s name: TWELMEIER MOMMER & PARTNER PATENT- UND RECHTSA, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502009013890

Country of ref document: DE

Owner name: DODUCO CONTACTS AND REFINING GMBH, DE

Free format text: FORMER OWNER: DODUCO GMBH, 75181 PFORZHEIM, DE

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: DODUCO CONTACTS AND REFINING GMBH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502009013890

Country of ref document: DE

Owner name: DODUCO CONTACTS AND REFINING GMBH, DE

Free format text: FORMER OWNER: DODUCO CONTACTS UND REFINING GMBH, 75181 PFORZHEIM, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 502009013890

Country of ref document: DE

Representative=s name: TWELMEIER MOMMER & PARTNER PATENT- UND RECHTSA, DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170419

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

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

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170720

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

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

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170819

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502009013890

Country of ref document: DE

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

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

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

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

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

26N No opposition filed

Effective date: 20180122

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

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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: 20171027

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20171031

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: 20171031

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

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

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 NON-PAYMENT OF DUE FEES

Effective date: 20171027

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 886765

Country of ref document: AT

Kind code of ref document: T

Effective date: 20171027

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: 20171027

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

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20091027

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

Ref country code: CY

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

Effective date: 20170419

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

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

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

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

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

Ref country code: SE

Payment date: 20201023

Year of fee payment: 12

Ref country code: GB

Payment date: 20201023

Year of fee payment: 12

Ref country code: CH

Payment date: 20201023

Year of fee payment: 12

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

Ref country code: PL

Payment date: 20201001

Year of fee payment: 12

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

Ref country code: SE

Ref legal event code: EUG

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

Effective date: 20211027

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: 20211028

Ref country code: GB

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

Effective date: 20211027

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: 20211031

Ref country code: CH

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

Effective date: 20211031

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

Ref country code: PL

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

Effective date: 20211027

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

Ref country code: CZ

Payment date: 20230921

Year of fee payment: 15

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

Ref country code: IT

Payment date: 20231030

Year of fee payment: 15

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

Ref country code: DE

Payment date: 20240815

Year of fee payment: 16

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

Ref country code: CZ

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

Effective date: 20241027

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: 20241027

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

Ref country code: FR

Payment date: 20250918

Year of fee payment: 17