EP1794350A1 - Verfahren zur herstellung einer abbrandfesten beschichtung, sowie entsprechende schirmung für vakuumschaltkammern - Google Patents
Verfahren zur herstellung einer abbrandfesten beschichtung, sowie entsprechende schirmung für vakuumschaltkammernInfo
- Publication number
- EP1794350A1 EP1794350A1 EP05791276A EP05791276A EP1794350A1 EP 1794350 A1 EP1794350 A1 EP 1794350A1 EP 05791276 A EP05791276 A EP 05791276A EP 05791276 A EP05791276 A EP 05791276A EP 1794350 A1 EP1794350 A1 EP 1794350A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- erosion
- arc
- resistant coating
- producing
- vacuum
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/02—Coating starting from inorganic powder by application of pressure only
- C23C24/04—Impact or kinetic deposition of particles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
- H01H2033/66269—Details relating to the materials used for screens in vacuum switches
Definitions
- the invention relates to a method for producing an erosion-resistant coating, in particular for arc-exposed inner regions of shields, as well as a shielding produced in this way for vacuum interrupters, according to the preamble of claims 1 and 6.
- Such vacuum interrupters are used in low-voltage, medium-voltage and high-voltage switchgear. Arcs, which in a vacuum environment between contact pieces especially under
- Short-circuit current conditions when switching off are erased at the next zero crossing of the current, but at the latest after the second zero crossing. Nevertheless, they only affect the interior areas of the vacuum interrupter chamber in milliseconds, and it is well known that high energy densities occur even if only for a short time.
- BESTATIGUNGSKOPIE the components of a vacuum interrupter chamber substantially in a compact design of a VK and so the life of such a VK is essentially] en limited by the number of circuits performed in the event of a short circuit.
- a part of the vacuum interrupters are provided with an erosion-resistant screen which is positioned between the contact piece environment and the interrupter chamber inner wall (e.g., the ceramic insulator).
- the shields are thin-walled cylindrical partially contoured sheet metal parts, their plasma erosion is particularly high with appropriate heat development.
- the prior art also discloses sintering methods for producing copper-chromium shields by a powder sintering method. For this purpose, pressing tools for the production of green compacts are required for the different diameter. The production of a dense material is then carried out by sintering the green compacts at temperatures around 1000 degrees Celsius under vacuum or a noble gas atmosphere.
- the plasma spraying method is known.
- the thermal process is used to apply a copper chromium layer.
- the plasma spraying is carried out in a known manner due to the strong getter effect of the chromium in a noble gas atmosphere. Inevitably, however, an increased gas content in the sprayed layer, which is disadvantageous.
- Sheet metal mold is used for vacuum interrupter chamber screens or vacuum interrupters, according to DE 19747242 C2.
- the constructive bandwidth for building a compact vacuum interrupter chamber is greater.
- this involves higher costs of the vacuum interrupter chamber.
- This disadvantage can be reduced in part by an integration of shielding and erosion-resistant layer. Nevertheless, the erosion resistance is limited and at the same time the said processes are relatively expensive. Certain material compositions, ie the variation of the stoichiometric proportion, are also much more difficult.
- the invention is therefore based on the object of specifying a method for producing Abbrandfester shields, which on the one hand easy to manufacture, but on the other hand has an extremely high erosion resistance.
- the core of the production method according to the invention is in this case that a substrate material in the cold gas spraying process is coated with a erosion-resistant alloy and / or a composite material. It has been shown here that after Kaltgasspritzvon that is easy to do, a highly erosion-resistant layer on a substrate or on shields, including those for the high-erosive and temperature-sensitive application area as are used in vacuum interrupters.
- Cold gas spraying method used so that shields for the inner coating of substrates or shields in vacuum interrupters are thus coated at least in the plasma and temperature erosion area.
- the chromium concentration can be adjusted over a wide range, which allows the said process technique of cold gas spraying.
- the screen which may be designed a priori thin-walled coated with a layer of> 0 - 2 mm. This creates a very dense layer with low gas content.
- the layer can be sprayed onto the component under an air or inert gas atmosphere. In thermal spraying, the gas content of the finished layer is due to the strong - A -
- the chromium content is adjustable between 0 and 100 percent by weight.
- the powder has a particle size between near 0 and 150 micrometers. Optimal results are achieved in this area and the manufacturing process remains simple.
- the layer produced in this way can be reduced under hydrogen after coating or degassed by annealing under a high-vacuum atmosphere.
- the erosion-resistant shield 10 is disposed within the vacuum interrupter so in this area.
- the shield is designed as a set piece of pipe, which s.der appropriate position to be positioned within the vacuum interrupter chamber.
- only a portion of the pipe section (the shield) is coated, in the thermally stressed by the arc plasma area with a erosion-resistant coating 20 on the inner surface or inner surface of the screen 10.
- the screen 10 can be made both of materials such as stainless steel or copper , Important is the property of the coating, which provides the erosion resistance here.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004046641 | 2004-09-25 | ||
PCT/EP2005/010323 WO2006032522A1 (de) | 2004-09-25 | 2005-09-23 | Verfahren zur herstellung einer abbrandfesten beschichtung, sowie entsprechende schirmung für vakuumschaltkammern |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1794350A1 true EP1794350A1 (de) | 2007-06-13 |
Family
ID=35432617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05791276A Withdrawn EP1794350A1 (de) | 2004-09-25 | 2005-09-23 | Verfahren zur herstellung einer abbrandfesten beschichtung, sowie entsprechende schirmung für vakuumschaltkammern |
Country Status (4)
Country | Link |
---|---|
US (1) | US7758917B2 (zh) |
EP (1) | EP1794350A1 (zh) |
CN (1) | CN101052746B (zh) |
WO (1) | WO2006032522A1 (zh) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006117144A1 (en) | 2005-05-05 | 2006-11-09 | H.C. Starck Gmbh | Method for coating a substrate surface and coated product |
DE102005043484B4 (de) | 2005-09-13 | 2007-09-20 | Abb Technology Ag | Vakuumschaltkammer |
US20080078268A1 (en) | 2006-10-03 | 2008-04-03 | H.C. Starck Inc. | Process for preparing metal powders having low oxygen content, powders so-produced and uses thereof |
US20080145688A1 (en) | 2006-12-13 | 2008-06-19 | H.C. Starck Inc. | Method of joining tantalum clade steel structures |
US8197894B2 (en) | 2007-05-04 | 2012-06-12 | H.C. Starck Gmbh | Methods of forming sputtering targets |
DE102007047473B3 (de) | 2007-09-27 | 2008-11-20 | Siemens Ag | Verfahren zur Herstellung eines als Abschirmung in einer Vakuumschaltröhre einsetzbaren rohrförmigen Bauteils |
US8246903B2 (en) | 2008-09-09 | 2012-08-21 | H.C. Starck Inc. | Dynamic dehydriding of refractory metal powders |
US8043655B2 (en) * | 2008-10-06 | 2011-10-25 | H.C. Starck, Inc. | Low-energy method of manufacturing bulk metallic structures with submicron grain sizes |
JP5537303B2 (ja) * | 2010-07-12 | 2014-07-02 | 株式会社東芝 | 真空バルブ |
US8703233B2 (en) | 2011-09-29 | 2014-04-22 | H.C. Starck Inc. | Methods of manufacturing large-area sputtering targets by cold spray |
EP2665079A1 (en) * | 2012-05-15 | 2013-11-20 | ABB Technology AG | Shielding element for use in medium voltage switchgears, and method for manufacture the same |
JP5535280B2 (ja) * | 2012-07-23 | 2014-07-02 | 株式会社不二機販 | 溶接用チップの強化方法及び溶接用チップ |
DE102013204775A1 (de) * | 2013-03-19 | 2014-09-25 | Siemens Aktiengesellschaft | Verfahren zum Erzeugen eines Bauteils einer Vakuumschaltröhre |
US9875869B2 (en) | 2014-10-13 | 2018-01-23 | Eaton Corporation | Composite arc shields for vacuum interrupters and methods for forming same |
DE102016214755A1 (de) * | 2016-08-09 | 2018-02-15 | Siemens Aktiengesellschaft | Keramikisolator für Vakuumschaltröhren |
DE102019219879B4 (de) * | 2019-12-17 | 2023-02-02 | Siemens Aktiengesellschaft | Verfahren zum Herstellen von verschweißbar ausgestalteten Kupferschaltkontakten und Vakuumleistungsschalter mit solchen Kontaktstücken |
CN112195462A (zh) * | 2020-09-22 | 2021-01-08 | 西安工程大学 | 一种铜铬复合涂层的制备方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2394479A (en) * | 2002-10-18 | 2004-04-28 | United Technologies Corp | Cold Spray Process for Coating Substrates |
US20040110021A1 (en) * | 2001-08-01 | 2004-06-10 | Siemens Westinghouse Power Corporation | Wear and erosion resistant alloys applied by cold spray technique |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991019016A1 (en) * | 1990-05-19 | 1991-12-12 | Institut Teoreticheskoi I Prikladnoi Mekhaniki Sibirskogo Otdelenia Akademii Nauk Sssr | Method and device for coating |
DE19632573A1 (de) * | 1996-08-13 | 1998-02-19 | Abb Patent Gmbh | Verfahren zur Herstellung einer Kontaktanordnung für eine Vakuumkammer und Kontaktanordnung |
DE19714654A1 (de) | 1997-04-09 | 1998-10-15 | Abb Patent Gmbh | Vakuumschaltkammer mit einem festen und einem beweglichen Kontaktstück und/oder einem Schirm von denen wenigstens die Kontaktstücke wenigstens teilweise aus Cu/Cr, Cu/CrX oder Cu/CrXY bestehen |
DE19747242C2 (de) * | 1997-10-25 | 2002-02-21 | Abb Patent Gmbh | Verfahren zur Herstellung einer Blechform für Vakuumkammerschirme oder Vakuumkammerkontaktstücke |
DE19747386A1 (de) | 1997-10-27 | 1999-04-29 | Linde Ag | Verfahren zum thermischen Beschichten von Substratwerkstoffen |
DE19902500B4 (de) * | 1999-01-22 | 2004-07-22 | Moeller Gmbh | Verfahren zum Herstellen einer Kontaktanordnung für eine Vakuumschaltröhre |
JP3842735B2 (ja) * | 2000-12-13 | 2006-11-08 | シーメンス アクチエンゲゼルシヤフト | 真空遮断器の容器部品間の接続部と真空遮断器 |
US6592935B2 (en) * | 2001-05-30 | 2003-07-15 | Ford Motor Company | Method of manufacturing electromagnetic devices using kinetic spray |
DE102004006609B4 (de) * | 2004-02-11 | 2006-03-16 | Abb Technology Ag | Vakuumschalter mit Schirmung |
-
2005
- 2005-09-23 US US11/663,438 patent/US7758917B2/en not_active Expired - Fee Related
- 2005-09-23 WO PCT/EP2005/010323 patent/WO2006032522A1/de active Application Filing
- 2005-09-23 EP EP05791276A patent/EP1794350A1/de not_active Withdrawn
- 2005-09-23 CN CN2005800321590A patent/CN101052746B/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040110021A1 (en) * | 2001-08-01 | 2004-06-10 | Siemens Westinghouse Power Corporation | Wear and erosion resistant alloys applied by cold spray technique |
GB2394479A (en) * | 2002-10-18 | 2004-04-28 | United Technologies Corp | Cold Spray Process for Coating Substrates |
Non-Patent Citations (1)
Title |
---|
See also references of WO2006032522A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN101052746B (zh) | 2010-04-14 |
US20070196570A1 (en) | 2007-08-23 |
WO2006032522A1 (de) | 2006-03-30 |
US7758917B2 (en) | 2010-07-20 |
CN101052746A (zh) | 2007-10-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2006032522A1 (de) | Verfahren zur herstellung einer abbrandfesten beschichtung, sowie entsprechende schirmung für vakuumschaltkammern | |
EP0115292B1 (de) | Verfahren zum Herstellen von Kupfer-Chrom-Schmelzlegierungen als Kontaktwerkstoff für Vakuum-Leistungsschalter | |
DE102005043484B4 (de) | Vakuumschaltkammer | |
DE1081950B (de) | Vakuumschalter | |
EP1844486B1 (de) | Verfahren zur herstellung eines kontaktstückes, sowie kontaktstück für eine vakuumschaltkammer selbst | |
DE69020383T2 (de) | Kontaktbildendes Material für einen Vakuumschalter. | |
DE19837945A1 (de) | Schaltanordnung und Verfahren zu ihrer Herstellung | |
DE2045173C3 (de) | Elektrisches Kontaktmaterial fur einen Vakuumschalter | |
DE69936742T2 (de) | Kontaktwerkstoff | |
DE69825227T2 (de) | Vakuumschalter | |
DE10010723B4 (de) | Verfahren zum Herstellen eines Kontaktwerkstoff-Halbzeuges für Kontaktstücke für Vakuumschaltgeräte sowie Kontaktwerkstoff-Halbzeuge und Kontaktstücke für Vakuumschaltgeräte | |
WO1990015425A1 (de) | VERFAHREN ZUR HERSTELLUNG EINES CuCr-KONTAKTWERKSTOFFES FÜR VAKUUMSCHÜTZE SOWIE ZUGEHÖRIGER KONTAKTWERKSTOFF | |
WO2005078755A1 (de) | Vakuumschaltkammer mit schirmung | |
DE69220865T2 (de) | Werkstoff für Vakuumschalterkontakte und Verfahren zu ihrer Herstellung | |
DE69417606T2 (de) | Kontaktmaterial für einen Vakuumschalter | |
DE69520762T2 (de) | Kontaktmaterial für Vakuumschalter und Verfahren zu dessen Herstellung | |
DE69330598T2 (de) | Kontaktmaterial für Vakuumschalter und Herstellungsverfahren dafür | |
WO1992006482A1 (de) | Verfahren zur erhöhung der spannungsfestigkeit und verbesserung des kriechstromverhaltens von isolationsstrecken und anwendung dieses verfahrens auf vakuumschalter | |
WO2006063989A1 (de) | Aus einer schmelzmetallurgisch hergestellten kupferchromlegierung bestehendes schirmsystem | |
DE60034497T2 (de) | Vakuumschalter | |
DE4110600C2 (de) | Elektrode für einen Vakuum-Leistungsschalter | |
DE10038841C1 (de) | SiO¶2¶-Glaskolben mit mindestens einer Stromdurchführung, Verfahren zur Herstellung einer gasdichten Verbindung zwischen beiden sowie ihre Verwendung in einer Gasentladungslampe | |
EP3782177A1 (de) | Gasisolierte schaltanlage | |
DE102019135459A1 (de) | Vorrichtung zur Unterbrechung eines elektrischen Kreises | |
EP2191486A1 (de) | Als abschirmung in einer vakuumschaltröhre einsetzbares rohrförmiges bauteil sowie verfahren zur herstellung eines als abschirmung in einer vakuumschaltröhre einsetzbaren rohrförmigen bauteils |
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: 20070425 |
|
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 HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: PTASCHEK, GEORG Inventor name: GENTSCH, DIETMAR |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20100802 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20150320 |