EP0561812A1 - Elektrode und verfahren zu ihrer herstellung. - Google Patents
Elektrode und verfahren zu ihrer herstellung.Info
- Publication number
- EP0561812A1 EP0561812A1 EP91920001A EP91920001A EP0561812A1 EP 0561812 A1 EP0561812 A1 EP 0561812A1 EP 91920001 A EP91920001 A EP 91920001A EP 91920001 A EP91920001 A EP 91920001A EP 0561812 A1 EP0561812 A1 EP 0561812A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrode
- intermetallic phase
- electrode base
- metal
- alloying
- 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
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
- H01T13/39—Selection of materials for electrodes
Definitions
- the invention relates to an electrode for electrical discharges, in particular spark plug electrodes, with an electrode base made of metal and a method for their production.
- Common spark plugs generally have a central electrode and a ground electrode, the tips of the two electrodes being arranged relative to one another in such a way that a spark gap is left free. Due to the constant generation of sparks between the two electrodes, the tips are subject to considerable wear. This problem places high demands on the temperature resistance, corrosion resistance and thermal expansion characteristics of the electrode tip. Spark erosion and oxidation phenomena also lead to considerable stress.
- Intermetallic phases are compounds of metals with ordered atomic distributions. These intermetallic phases are high even Temperatures are stronger than metal alloys, more resistant to oxidation than non-precious metal alloys and more malleable than ceramics. This means that their properties lie between metal and ceramic.
- Intermetallic phases are, for example, titanium aluminides and nickel aluminides.
- the electrode can consist entirely of the IP material or can have a tip made of IP material on an electrode body made of otherwise customary electrode material.
- IP material i.e. an intermetallic phase itself
- Nickel aluminides such as NiAl, Ni-Al. Or the like, are particularly suitable.
- the connection to the electrode base body then takes place by known methods, such as welding or high-temperature soldering.
- a further advantageous possibility is, however, to apply a material to the electrode base body to form an intermetallic phase and then to produce a high-melting, oxidation-resistant intermetallic phase there.
- Aluminum or an aluminum alloy for example, are suitable as materials. In both cases, the material is preferably connected by alloying. This alloying takes place, for example, using the known laser technology.
- the given goal is the production of NiAl with additional alloying elements such as chromium, manganese, silicon, molybdenum or the like.
- Alloy formation or alloying can also take place using the aluminothermic effect, the heat of reaction being used in the oxidation of aluminum to form the alloy. In this case, a cermet material with connections of corundum particles is created.
- the intermetallic phase should also contain alloy additives. It is possible, for example, to reduce the electron work function by adding alkaline earth metals. Furthermore, further alloy additives can be added to the material before alloying, which make this material ductile or deformable. This can also be done by appropriate pretreatment. This includes, for example, the addition of boron, with boron preferably evaporating when alloying. If, for example, chromium is added, the corrosion resistance of the electrode can be improved as a result.
- the material is placed as a plate, cap or the like on the electrode base body and then, for example, alloyed on. This manufacturing process is simple and inexpensive.
- the invention is also intended, for example, to include the use of an intermetallic phase in the manufacture of electrodes, in particular spark plug electrodes.
Landscapes
- Spark Plugs (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4039778A DE4039778C1 (de) | 1990-12-13 | 1990-12-13 | |
DE4039778 | 1990-12-13 | ||
PCT/DE1991/000889 WO1992010868A1 (de) | 1990-12-13 | 1991-11-15 | Elektrode und verfahren zu ihrer herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0561812A1 true EP0561812A1 (de) | 1993-09-29 |
EP0561812B1 EP0561812B1 (de) | 1995-11-02 |
Family
ID=6420214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91920001A Expired - Lifetime EP0561812B1 (de) | 1990-12-13 | 1991-11-15 | Elektrode und verfahren zu ihrer herstellung |
Country Status (9)
Country | Link |
---|---|
US (1) | US5477022A (de) |
EP (1) | EP0561812B1 (de) |
JP (1) | JPH06503199A (de) |
KR (1) | KR100215149B1 (de) |
AU (1) | AU648613B2 (de) |
BR (1) | BR9107163A (de) |
DE (1) | DE4039778C1 (de) |
ES (1) | ES2079685T3 (de) |
WO (1) | WO1992010868A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9698576B2 (en) | 2015-09-17 | 2017-07-04 | Federal-Mogul Ignition Gmbh | Method for manufacturing an ignition electrode for spark plugs and spark plug manufactured therewith |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NZ270219A (en) * | 1993-12-23 | 1997-03-24 | Mintek | Spark plug electrode of intermetallic compound |
DE19631985A1 (de) * | 1996-08-08 | 1998-02-19 | Bosch Gmbh Robert | Elektrode mit verschleißfester Beschichtung, Zündkerze und Verfahren zu ihrer Herstellung |
JP2013512536A (ja) * | 2009-11-24 | 2013-04-11 | フェデラル−モーグル・イグニション・カンパニー | 体積安定性の電極材料を有するスパークプラグ |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2005649A (en) * | 1977-09-22 | 1979-04-25 | Johnson Matthey Co Ltd | Electrodes |
JPS5450735A (en) * | 1977-09-30 | 1979-04-20 | Toyota Motor Corp | Noise wave preventive surface treatment for distributor |
DE3132814C2 (de) * | 1980-08-21 | 1984-10-25 | Nippondenso Co., Ltd., Kariya, Aichi | Zündkerze für Brennkraftmaschinen |
DE3233584A1 (de) * | 1982-09-10 | 1984-03-15 | G. Rau GmbH & Co, 7530 Pforzheim | Elektrode fuer eine elektrische entladungsstrecke und herstellungsverfahren hierzu |
US4540910A (en) * | 1982-11-22 | 1985-09-10 | Nippondenso Co., Ltd. | Spark plug for internal-combustion engine |
US4904216A (en) * | 1983-09-13 | 1990-02-27 | Ngk Spark Plug Co., Ltd. | Process for producing the center electrode of spark plug |
DE3727526A1 (de) * | 1987-08-18 | 1989-03-02 | Bosch Gmbh Robert | Verfahren zum herstellen einer zuendkerze fuer brennkraftmaschinen |
US5102700A (en) * | 1988-04-18 | 1992-04-07 | Alloy Surfaces Company, Inc. | Exothermically formed aluminide coating |
US5093879A (en) * | 1990-06-22 | 1992-03-03 | International Business Machines Corporation | Electro-optical connectors |
-
1990
- 1990-12-13 DE DE4039778A patent/DE4039778C1/de not_active Expired - Lifetime
-
1991
- 1991-11-15 AU AU89078/91A patent/AU648613B2/en not_active Ceased
- 1991-11-15 BR BR919107163A patent/BR9107163A/pt not_active Application Discontinuation
- 1991-11-15 ES ES91920001T patent/ES2079685T3/es not_active Expired - Lifetime
- 1991-11-15 WO PCT/DE1991/000889 patent/WO1992010868A1/de active IP Right Grant
- 1991-11-15 EP EP91920001A patent/EP0561812B1/de not_active Expired - Lifetime
- 1991-11-15 JP JP3518090A patent/JPH06503199A/ja active Pending
- 1991-11-15 US US08/078,154 patent/US5477022A/en not_active Expired - Fee Related
- 1991-11-15 KR KR1019930701774A patent/KR100215149B1/ko not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9210868A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9698576B2 (en) | 2015-09-17 | 2017-07-04 | Federal-Mogul Ignition Gmbh | Method for manufacturing an ignition electrode for spark plugs and spark plug manufactured therewith |
Also Published As
Publication number | Publication date |
---|---|
US5477022A (en) | 1995-12-19 |
WO1992010868A1 (de) | 1992-06-25 |
KR100215149B1 (ko) | 1999-08-16 |
DE4039778C1 (de) | 1992-05-14 |
JPH06503199A (ja) | 1994-04-07 |
EP0561812B1 (de) | 1995-11-02 |
BR9107163A (pt) | 1993-11-03 |
AU8907891A (en) | 1992-07-08 |
KR930703725A (ko) | 1993-11-30 |
ES2079685T3 (es) | 1996-01-16 |
AU648613B2 (en) | 1994-04-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69837619T2 (de) | Elektrodenstab für funkenbeschichtung, verfahren zu dessen herstellung und verfahren zur beschichtung mit supraschleif-enthaltender schicht | |
DE2632871C3 (de) | Porzellanüberzogene Metallkrone und Verfahren zu ihrer Herstellung | |
DE3532331C2 (de) | ||
DE3038649A1 (de) | Zuendkerze und verfahren zu ihrer herstellung | |
DE112012002699T5 (de) | Elektrodenmaterial für eine Zündkerze | |
DE19701170A1 (de) | Verfahren zur Oberflächenbehandlung mittels elektrischer Entladung | |
EP1230720A1 (de) | Elektrode, verfahren zu deren herstellung und zündkerze mit einer derartigen elektrode | |
DE10255859B4 (de) | Verfahren zur Herstellung einer Glühkerze | |
DE102004044152A1 (de) | Zündkerze | |
DE3614475C2 (de) | ||
EP1356555B2 (de) | Verfahren zur herstellung einer zündkerzenelektrode | |
EP0062173B1 (de) | Verfahren zur Herstellung eines Kolbens aus Aluminium mit hartoxidiertem Boden | |
DE102013219520A1 (de) | Zündkerze für brennkraftmaschine | |
EP0561812B1 (de) | Elektrode und verfahren zu ihrer herstellung | |
EP0860043B1 (de) | Verfahen zur bescichtung und herstellung einer elektrode für zündkerzen für brennkraftmaschinen | |
DE3036223A1 (de) | Funkenzuender | |
DE2002886A1 (de) | Verfahren zur Herstellung eines durch innere Oxydation dispersionsgehaerteten Werkstoffes | |
DE102014103053B4 (de) | Verfahren zum Herstellen eines Zündkerzen-Elektrodenmaterials, Verfahren zum Herstellen einer Zündkerze, und Elektrodensegment zur Verwendung in einer Zündkerze | |
DE2530368B2 (de) | Zündkerze | |
DE102013007316B4 (de) | Elektrodenmaterial für eine Zündkerze | |
AT272929B (de) | Verfahren zur vakuumdichten Verlötung eines Metallkörpers mit einem glasphasenfreien Keramikkörper | |
DE69022064T2 (de) | Verfahren zum ändern eines oberflächenbereiches eines werkstückes. | |
DE2715914C2 (de) | ||
DE659427C (de) | Verfahren zum vakuumdichten Verbinden von metallischen und keramischen Teilen | |
DE2020989A1 (de) | Befestigungsverfahren von Brillanten oder anderen Edelsteinen |
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: 19930508 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES FR GB IT SE |
|
17Q | First examination report despatched |
Effective date: 19950406 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): ES FR GB IT SE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): ES FR GB IT SE |
|
ET | Fr: translation filed | ||
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2079685 Country of ref document: ES Kind code of ref document: T3 |
|
ITF | It: translation for a ep patent filed |
Owner name: STUDIO JAUMANN |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19960111 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19971029 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19971121 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19971126 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 19971128 Year of fee payment: 7 |
|
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: 19981115 |
|
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: 19981116 Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19981116 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19981115 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990730 |
|
EUG | Se: european patent has lapsed |
Ref document number: 91920001.4 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 19991214 |
|
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: 20051115 |