EP2831298A1 - Kontaktwerkstoff - Google Patents
KontaktwerkstoffInfo
- Publication number
- EP2831298A1 EP2831298A1 EP13715919.0A EP13715919A EP2831298A1 EP 2831298 A1 EP2831298 A1 EP 2831298A1 EP 13715919 A EP13715919 A EP 13715919A EP 2831298 A1 EP2831298 A1 EP 2831298A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact material
- oxide
- contact
- material according
- magnesium stannate
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
-
- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/12—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on oxides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/06—Alloys based on silver
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
- H01H1/023—Composite material having a noble metal as the basic material
- H01H1/0237—Composite material having a noble metal as the basic material and containing oxides
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/04—Compacting only by applying fluid pressure, e.g. by cold isostatic pressing [CIP]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
- H01H1/023—Composite material having a noble metal as the basic material
- H01H1/0237—Composite material having a noble metal as the basic material and containing oxides
- H01H1/02372—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te
- H01H1/02376—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te containing as major component SnO2
Definitions
- silver / metal and silver / metal oxide composites have proven themselves.
- the most commonly used silver / metal composite is silver / nickel, the main application of which is at lower currents.
- the AgSn02W03 Mo03 material is produced by powder metallurgy using the extrusion technique.
- the powder metallurgical production has the advantage that additives of any kind and quantity can be used.
- the material can be targeted to certain properties, e.g. Versch dipkraft or heating, to be optimized.
- the combination of powder metallurgy with the extrusion technology allows a particularly high efficiency in the production of the contact pieces.
- An internally oxidized AgSnO 2 In 2 O 3 material is also used. This
- DE-OS 27 54 335 a contact material is described, which contains in addition to silver 1, 6 to 6.5 B12O3 and 0.1 to 7.5 SnO 2. This material can be produced both by internal oxidation and powder metallurgy. Such high B12O3
- Tin contents of more than 4.5% may contain additions of 0.1-5 indium and 0.01-5 bismuth.
- the metal alloy powder is compacted and then internally oxidized. These additives inhibit the inhomogeneous oxide precipitations customary in internal oxidation. Optimal contact properties shows this Material not.
- No. 4,695,330 describes a special process for producing an internally oxidized material with 0.5-12 tin, 0.5-15 indium and 0.01-1.5 bismuth.
- the powder metallurgical production of contact materials based on silver-tin oxide by mixing the powder, cold isostatic pressing, sintering and extrusion to semi-finished products is known for example from DE 43 19 137 and DE 43 31 526.
- Electric, cadmium-free contact material containing at least one metal and magnesium stannate Mg 2 SnO 4.
- Contact material according to one or more of the items 1 to 8, wherein the magnesium stannate present in the contact material wholly or partially has a particle size of 100 nm to 900 nm.
- Contact material according to one or more of the items 1 to 10, wherein additionally borrowed oxides from the group consisting of magnesium oxide, copper oxide, bismuth oxide, tellurium oxide, tin oxide, indium oxide, tungsten oxide, molybdenum oxide, their mixed oxides or combinations thereof are included.
- Contact material according to one or more of the items 1 to 1 1, wherein the further oxides, individually or in combination, may be contained in amounts of 0.5 wt .-% to 30 wt .-%.
- Magnesium oxide MgO and tin oxide SnÜ2 in the corresponding molar ratio are intensively mixed (for example by wet or dry grinding), optionally dried and then for about 15 to about 25 hours at temperatures of about 1200 ° C calcined to about 1600 ° C.
- a mixture of magnesium stannate and magnesium oxide can be obtained as shown in Figure 1, with about 4.4% magnesium oxide present with about 95.6% magnesium stannate.
- By using an excess of about 10% magnesium oxide up to 98% Mg2SnO4 magnesium stannate can be achieved.
- the present patent application also relates to the use of a contact material containing at least one metal and magnesium stannate for the production of electrical contact pieces, as well as electrical contacts containing such a contact material as further described.
- a contact material containing at least one metal and magnesium stannate for the production of electrical contact pieces, as well as electrical contacts containing such a contact material as further described.
- silver or silver alloys can be used as the metal.
- Silver alone also has excellent properties for many applications.
- Cadmium on the other hand, is not included and may be present in the maximum range of unavoidable impurities.
- magnesium stannate Mg2SnÜ4 as an additive 0.5 wt .-% to 5
- the magnesium stannate Mg2SnÜ4 is present in the contact material as a disperse phase, while the metal forms the continuous phase.
- the magnesium stannate Mg 2 Sn 4 can have particle sizes of at least 1 ⁇ m. In particular, at least 60% of the magnesium stannate have particle sizes of 1 ⁇ m or more, which is advantageous in particular in the case of reshaping further processing, for example by extrusion. If contact pieces are individually sintered, instead of or in combination with magnesium stannate, Mg 2 Sn 4 with a particle size of 1 ⁇ m or more may also be used
- the contact material may have further oxides.
- the contact material may additionally contain oxides from the group consisting of magnesium oxide, copper oxide, bismuth oxide, tellurium oxide, tin oxide, indium oxide, tungsten oxide, molybdenum oxide or combinations thereof, their mixed oxides or combinations thereof.
- Bi 6 WO 2 may be present as mixed oxide.
- the above oxides may be present individually or in total in amounts of from 0.5% to 30% by weight, or in amounts from 2% to 20% by weight, up to 7% by weight, in particular be contained up to 2 wt .-%, or in amounts of 0.5 wt .-% up to 7 wt .-% or in amounts of 0.5 wt .-% up to 2 wt .-%.
- tin oxide is optionally used with indium oxide, tellurium oxide or both as further oxides.
- the total oxide content, ie the combined content of magnesium stannate is Mg 2 SnO 4 up to 60% by weight.
- at least 60% of the further oxide, that is, for example, of the tin oxide has particle sizes of 1 ⁇ m or more, which is advantageous, in particular, in the case of reshaping further processing, for example by extrusion.
- the further oxide can also be used particle sizes of 20 nm to 2 ⁇ or 50 nm to less than 2000 nm, in particular 100 nm to 1800 nm or 200 nm to 900 nm. In this case, advantageously 60% of the further oxide particle sizes of 100 nm to 900 nm.
- the contact material can be obtained by a manufacturing method selected from powder metallurgy production, internal oxidation or combinations thereof.
- powder metallurgical production of the material is by mixing a powder of the metal or an alloy with magnesium stannate Mg2Sn04 or a
- Magnesium stannate precursor compound and optionally other oxides cold sostatisches static compression of the powder mixture, and sintering at temperatures of about 500 ° C to about 940 ° C and optionally forming the sintered material, such as by extrusion to wires or profiles, the contact material.
- Magnesium stannate precursor compound can be used compounds different from magnesium stannate, which decompose under the process conditions in magnesium stannate and optionally other decomposition products.
- the further decomposition products must either be volatile in the process conditions or be substances whose presence does not disturb the properties of the product obtained, ideally substances whose presence is desired, such as the metal used or another oxide selected from the group consisting of magnesium oxide, copper oxide, Bismuth oxide, tellurium oxide, tin oxide, indium oxide, tungsten oxide, molybdenum oxide or their combinations, their mixed oxides or combinations thereof.
- Suitable compounds are, for example, alkoxides of tin and magnesium, such as, for example, hexakis (2-methyl-2-propanolato)] bis [(2-methyl-2-propanolato) tin] di-magnesium, CAS no. 139731-82-1.
- too fine magnesium stannate or else other oxides can be coarsened by a heat treatment in which, for example, annealed at temperatures of about 700 ° C to about 1400 ° C until more than 60 wt.% Of magnesium stannate or other oxides have a particle size of more have 1 ⁇ .
- magnesium stannate (Mg 2 SnO 4) powders with smaller particle sizes may be used, in which case additives such as sintering activators are advantageous, for example copper oxide CuO, nanoscale silver powder or other nanomaterials.
- magnesium stannate can be used in which 60 wt.% Even before mixing with the metal powder have a particle size of at least 1 ⁇ , but also magnesium stannate (Mg2Sn04), in which
- 60% of the magnesium stannate has particle sizes of 50 nm to less than 1000 nm, in particular 60% of the magnesium stannate particle sizes of 100 nm to 900 nm.
- an alloy of silver with base metals is made pyrometallurgically and often heat-treated in pure oxygen under overpressure to form a contact material.
- Such processes are known from the literature and are described, for example, in EP 1505164 and EP 0508055.
- a metal powder may be used which is e.g. contains further oxides which have been produced by internal oxidation, such as, for example, silver containing tin oxide. Further processing then proceeds by powder metallurgy, that is to say by addition of magnesium stannate and / or further oxides and / or metal powder, subsequent pressing, sintering and, if appropriate, forming, such as, for example, Extrusion.
- the contact material contains in particular silver and magnesium stannate and moreover only conventional impurities.
- the contact material magnesium stannate in an amount of 0.2 to 20 wt .-% and ad 100 wt .-% silver and conventional impurities.
- the contact material contains magnesium stannate, which has at least 60% of a particle size of 1 ⁇ m or more, in an amount of 0.2 to 20% by weight and ad 100% by weight of silver and conventional impurities.
- the crushed powder mixture is calcined at 1400 ° C for 20 hours in air and then ground to a particle size (d50) of 2 ⁇ (Fritsch Pulverisette 5, 2 mm Zr0 2 balls, dry isopropanol).
- d50 particle size
- the resulting product was found to consist of 95.6% dimagnesium stannate (Mg 2 Sn0 4 ) and 4.4% cassiterite (SnO 2 ).
- FIG. 2 shows the burnup in mg per switching operation for both contact materials which have an oxide content of 17.07% by volume.
- the lower column shows the change at the fixed contact, the upper column at the moving contact. It can be seen that the magnesium stannate (Mg 2 SnO 4) and silver based
- FIG. 3 shows the contact resistances in mOhms for both contact materials, which are given as mean values (respectively right-hand column) and as 99% values. It can be seen that the averages are comparable, but the 99% values are significantly lower for the magnesium stannate (Mg 2 SnO 4) and silver-based contact material, and thus significantly improved over the silver-tin oxide material.
- Mg 2 SnO 4 magnesium stannate
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Contacts (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13715919.0A EP2831298B1 (de) | 2012-03-26 | 2013-03-26 | Kontaktwerkstoff |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12161247.7A EP2644723B1 (de) | 2012-03-26 | 2012-03-26 | Verbundwerkstoff |
| EP13715919.0A EP2831298B1 (de) | 2012-03-26 | 2013-03-26 | Kontaktwerkstoff |
| PCT/EP2013/056345 WO2013144112A1 (de) | 2012-03-26 | 2013-03-26 | Kontaktwerkstoff |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2831298A1 true EP2831298A1 (de) | 2015-02-04 |
| EP2831298B1 EP2831298B1 (de) | 2019-05-08 |
Family
ID=48092916
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12161247.7A Not-in-force EP2644723B1 (de) | 2012-03-26 | 2012-03-26 | Verbundwerkstoff |
| EP13715919.0A Active EP2831298B1 (de) | 2012-03-26 | 2013-03-26 | Kontaktwerkstoff |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12161247.7A Not-in-force EP2644723B1 (de) | 2012-03-26 | 2012-03-26 | Verbundwerkstoff |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9928931B2 (de) |
| EP (2) | EP2644723B1 (de) |
| CN (1) | CN104245976B (de) |
| WO (1) | WO2013144112A1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103613118B (zh) * | 2013-11-15 | 2015-08-19 | 广东光华科技股份有限公司 | 一种高纯度锡酸镁粉体的制备方法 |
| CN103681015B (zh) * | 2013-11-28 | 2015-12-02 | 昆明理工大学 | 一种复相金属氧化物增强银基电触头材料的制备方法 |
| CN103710556B (zh) * | 2013-12-27 | 2015-08-05 | 桂林电器科学研究院有限公司 | 一种粉末轧制法制备银氧化锡触头材料的工艺 |
| US10699851B2 (en) * | 2016-06-22 | 2020-06-30 | Teledyne Scientific & Imaging, Llc | Sintered electrical contact materials |
| US10290434B2 (en) * | 2016-09-23 | 2019-05-14 | Honeywell International Inc. | Silver metal oxide alloy and method of making |
| CN115537594B (zh) * | 2022-10-28 | 2023-04-25 | 台州慧模科技有限公司 | 一种银基电触头材料及其制备方法 |
| CN117089738B (zh) * | 2023-08-23 | 2025-08-12 | 昆明理工大学 | 一种SnO2@In2O3CuO增强银基复合材料的制备方法 |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5019352B1 (de) * | 1970-12-28 | 1975-07-05 | ||
| US3811910A (en) * | 1972-05-17 | 1974-05-21 | Ford Motor Co | Two-step method of making a color picture tube |
| JPS5526697B2 (de) * | 1973-07-05 | 1980-07-15 | ||
| US3933485A (en) | 1973-07-20 | 1976-01-20 | Chugai Denki Kogyo Kabushiki-Kaisha | Electrical contact material |
| US4141727A (en) | 1976-12-03 | 1979-02-27 | Matsushita Electric Industrial Co., Ltd. | Electrical contact material and method of making the same |
| DE2952128C2 (de) | 1979-12-22 | 1984-10-11 | Degussa Ag, 6000 Frankfurt | Verfahren zur Vorbehandlung des Pulvers für gesintertes und stranggepreßtes Halbzeug aus Silber-Zinnoxid für elektrische Kontakte |
| US4647477A (en) * | 1984-12-07 | 1987-03-03 | Kollmorgen Technologies Corporation | Surface preparation of ceramic substrates for metallization |
| US4680162A (en) | 1984-12-11 | 1987-07-14 | Chugai Denki Kogyo K.K. | Method for preparing Ag-SnO system alloy electrical contact material |
| US4695330A (en) | 1985-08-30 | 1987-09-22 | Chugai Denki Kogyo K.K. | Method of manufacturing internal oxidized Ag-SnO system alloy contact materials |
| JPH01312046A (ja) * | 1988-06-13 | 1989-12-15 | Chugai Electric Ind Co Ltd | 銀一酸化物電気接点材料 |
| JPH04311543A (ja) * | 1991-04-09 | 1992-11-04 | Chugai Electric Ind Co Ltd | Ag−SnO−InO電気接点材料とその製法 |
| EP0508055B1 (de) | 1991-04-12 | 1997-05-02 | Mitsubishi Materials Corporation | Metalloxidmaterial auf Silberbasis für elektrische Kontakte |
| DE4319137A1 (de) | 1992-06-10 | 1993-12-16 | Duerrwaechter E Dr Doduco | Werkstoff für elektrische Kontakte auf der Basis von Silber-Zinnoxid oder Siler-Zinkoxid |
| US5610347A (en) | 1992-06-10 | 1997-03-11 | Doduco Gmbh & Co. Dr. Eugen Durrwachter | Material for electric contacts taking silver-tin oxide or silver-zinc oxide as basis |
| ATE139864T1 (de) | 1992-09-16 | 1996-07-15 | Duerrwaechter E Dr Doduco | Werkstoff für elektrische kontakte auf der basis von silber-zinnoxid oder silber-zinkoxid und verfahren zu seiner herstellung |
| DE19607183C1 (de) * | 1996-02-27 | 1997-04-10 | Degussa | Gesinterter Silber-Eisen-Werkstoff für elektrische Kontakte und Verfahren zu seiner Herstellung |
| CN1082235C (zh) * | 1999-05-10 | 2002-04-03 | 昆明理工大学 | 合成法制备银-二氧化锡电接触材料 |
| DE602004020844D1 (de) | 2003-08-08 | 2009-06-10 | Mitsubishi Materials C M I Corp | Verfahren zur Herstellung eines elektrischen Kontaktes mit hoher elektrischer Leitfähigkeit für ein elektromagnetisches Relais und damit hergestellter elektrischer Kontakt |
| JP5019352B2 (ja) * | 2006-07-19 | 2012-09-05 | 三星電子株式会社 | 撮像装置 |
| DE102009059690A1 (de) * | 2009-12-19 | 2011-06-22 | Umicore AG & Co. KG, 63457 | Oxidationsverfahren |
| DE102010014745B4 (de) * | 2010-01-15 | 2011-09-22 | Tyco Electronics Amp Gmbh | Elektrisches Kontaktelement und Verfahren zur Herstellung eines elektrischen Kontaktelements |
-
2012
- 2012-03-26 EP EP12161247.7A patent/EP2644723B1/de not_active Not-in-force
-
2013
- 2013-03-26 CN CN201380015121.7A patent/CN104245976B/zh not_active Expired - Fee Related
- 2013-03-26 US US14/388,171 patent/US9928931B2/en not_active Expired - Fee Related
- 2013-03-26 WO PCT/EP2013/056345 patent/WO2013144112A1/de not_active Ceased
- 2013-03-26 EP EP13715919.0A patent/EP2831298B1/de active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013144112A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US9928931B2 (en) | 2018-03-27 |
| EP2644723B1 (de) | 2017-01-18 |
| EP2831298B1 (de) | 2019-05-08 |
| CN104245976B (zh) | 2017-06-09 |
| US20150060741A1 (en) | 2015-03-05 |
| EP2644723A1 (de) | 2013-10-02 |
| CN104245976A (zh) | 2014-12-24 |
| WO2013144112A1 (de) | 2013-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2831298B1 (de) | Kontaktwerkstoff | |
| DE69032065T2 (de) | Verbundwerkstoff von Silber und Metalloxyd und Verfahren zur Herstellung desselben | |
| DE2659012A1 (de) | Sinterkontaktwerkstoff aus silber und eingelagerten metalloxiden | |
| EP0440620B1 (de) | Halbzeug für elektrische kontakte aus einem verbundwerkstoff auf silber-zinnoxid-basis und pulvermetallurgisches verfahren zu seiner herstellung | |
| EP0725154B1 (de) | Sinterwerkstoff auf der Basis Silberzinnoxid für elektrische Kontakte und Verfahren zu dessen Herstellung | |
| EP0170812B1 (de) | Verfahren zur Herstellung von Sinterkontaktwerkstoffen | |
| DE2932275A1 (de) | Material fuer elektrische kontakte aus innen oxidierter ag-sn-bi-legierung | |
| EP0586410B1 (de) | Kontaktwerkstoff auf silberbasis zur verwendung in schaltgeräten der energietechnik sowie verfahren zur herstellung von kontaktstücken aus diesem werkstoff | |
| EP0586411B1 (de) | Kontaktwerkstoff auf silberbasis zur verwendung in schaltgeräten der energietechnik sowie verfahren zur herstellung von kontaktstücken aus diesem werkstoff | |
| EP0774529B1 (de) | Silber-Eisen-Werkstoff für elektrische Schaltkontakte (I) | |
| DE19607183C1 (de) | Gesinterter Silber-Eisen-Werkstoff für elektrische Kontakte und Verfahren zu seiner Herstellung | |
| EP0152606A2 (de) | Kontaktwerkstoff und Herstellung von Kontaktstücken | |
| EP0369283B1 (de) | Sinterkontaktwerkstoff für Niederspannungsschaltgeräte der Energietechnik, insbesondere für Motorschütze | |
| DE3911904A1 (de) | Pulvermetallurgisches verfahren zum herstellen eines halbzeugs fuer elektrische kontakte aus einem verbundwerkstoff auf silberbasis mit eisen | |
| DE69614489T2 (de) | Kontaktmaterial für Vakuumschalter und Verfahren zu dessen Herstellung | |
| DE3421759A1 (de) | Sinterkontaktwerkstoff fuer niederspannungsschaltgeraete der energietechnik | |
| DE19543208C1 (de) | Silber-Eisen-Werkstoff für elektrische Schaltkontakte (II) | |
| DE10012250B4 (de) | Kontaktwerkstoffe auf Basis Silber-Eisen-Kupfer | |
| WO2007020006A1 (de) | Verwendung von indium-zinn-mischoxid für werkstoffe auf silberbasis | |
| EP0916146B1 (de) | Verfahren zur herstellung eines erzeugnisses aus einem kontaktwerkstoff auf silberbasis, kontaktwerkstoff sowie erzeugnis aus dem kontaktwerkstoff | |
| DE3405218C2 (de) | ||
| EP0338401A1 (de) | Pulvermetallurgisches Verfahren zum Herstellen eines Halbzeugs für elektrische Kontakte aus einem Verbundwerkstoff auf Silberbasis mit Eisen | |
| EP0311134A1 (de) | Pulvermetallurgisch hergestellter Werkstoff für elektrische Kontakte aus Silber mit Graphit und Verfahren zu seiner Herstellung | |
| DE2458476A1 (de) | Elektrisches kontaktmaterial | |
| DE2642690A1 (de) | Sinterkontaktwerkstoff fuer elektrische kontakte |
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: 20141027 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL 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 RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20170307 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SAXONIA TECHNICAL MATERIALS GMBH |
|
| 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: 20181031 |
|
| 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): AL 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 RS 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 Ref country code: AT Ref legal event code: REF Ref document number: 1130225 Country of ref document: AT Kind code of ref document: T Effective date: 20190515 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502013012791 Country of ref document: DE |
|
| 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: NL Ref legal event code: MP Effective date: 20190508 |
|
| 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: AL 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: 20190508 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: 20190908 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: 20190808 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: 20190508 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: 20190508 Ref country code: SE 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: 20190508 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: 20190508 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: 20190508 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: 20190508 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RS 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: 20190508 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: 20190808 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: 20190508 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: 20190809 |
|
| 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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190508 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: 20190508 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: 20190508 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: 20190508 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: 20190508 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502013012791 Country of ref document: DE |
|
| 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: 20190508 |
|
| 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: 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: 20190508 |
|
| 26N | No opposition filed |
Effective date: 20200211 |
|
| 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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190508 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20190508 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20200320 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20200331 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20200318 Year of fee payment: 8 |
|
| 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: 20190508 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20200331 |
|
| 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: 20200326 |
|
| 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: 20200326 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200331 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200331 |
|
| 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: 20200331 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20200326 |
|
| 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 NON-PAYMENT OF DUE FEES Effective date: 20200326 |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 1130225 Country of ref document: AT Kind code of ref document: T Effective date: 20200326 |
|
| 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: 20200326 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502013012791 Country of ref document: DE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211001 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210331 |
|
| 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: 20210326 |
|
| 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: 20190508 Ref country code: CY 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: 20190508 |
|
| 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: 20190508 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: 20190908 |