WO2002061338A1 - Verfahren zur herstellung eines startelementes - Google Patents
Verfahren zur herstellung eines startelementes Download PDFInfo
- Publication number
- WO2002061338A1 WO2002061338A1 PCT/DE2001/004791 DE0104791W WO02061338A1 WO 2002061338 A1 WO2002061338 A1 WO 2002061338A1 DE 0104791 W DE0104791 W DE 0104791W WO 02061338 A1 WO02061338 A1 WO 02061338A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ceramic element
- glaze
- ceramic
- glow plug
- dry
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
- F23Q7/001—Glowing plugs for internal-combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
- F23Q7/001—Glowing plugs for internal-combustion engines
- F23Q2007/004—Manufacturing or assembling methods
Definitions
- the invention relates to a method for producing a starting element, in particular a glow plug, according to the preamble of claim 1.
- Known starting elements for the combustion process in an internal combustion engine comprise a ceramic element.
- these ceramic elements have been coated with a slip by wet application, for example by means of pouring, dipping, spraying, sprinkling or rolling up processes. After applying the slip. the ceramic element is fired, the burnable material contained in the slip melting or sintering into a glassy layer, often also referred to as a ceramic layer.
- a disadvantage of these wet-chemical treatment methods is that the production of the slip is comparatively complex, and putrefaction processes destroy the slip sedimentation processes must be counteracted as well as wastewater problems and a high energy requirement. Draining slip can possibly lead to the formation of droplets, which necessitates extensive post-treatment. In heaters for a glow plug in a diesel engine, the slurry running off can lead to a thin layer, which increases the risk of short-circuiting.
- the object of the invention is to propose a method for producing a starting element, in particular a glow plug, in which the disadvantages mentioned above are at least partially avoided.
- a method according to the invention for producing a starting element is characterized in that a dry glaze is applied to the ceramic element.
- the dry glaze is advantageously applied electrostatically to the ceramic element. This ensures that a more uniform layer thickness, in particular at the edges and in the throats, is produced compared to previous methods. The risk of short circuits in a heating element of a glow plug is thus completely avoided, which represents a significant improvement -
- the dry glaze preferably contains 4 - 6% CaO, 4 '- 6% BaO, 8 - 12% A1 2 0 3 , 53 - 61% Si0 2 and 20 - 26% B 2 0 3 , the dry glaze advantageously 5% CaO, 5% BaO, 10% Al 2 0 3 , 57% Si0 2 and 23% B 2 0 3 comprises.
- advantageous conductivity and fluidizability of the dry glaze can be realized, which significantly improves the electrostatic coating.
- the use of this lead-free dry glaze also reduces the environmental impact.
- composition of an electrostatically applicable dry glaze this is a glaze powder
- a glaze powder can be in a wide range, so that the properties of the glaze powder, including the stoving behavior, the coefficient of expansion and the electrical properties of the powder as well as the baked glaze easily on the z-glaze Substrate can be customized.
- Particularly suitable glaze powders such as glass frits, can be coated with insulating substances, such as, for example, organopolysiloxanes according to EP-A 0 382 003, for the purpose of increasing their specific resistance.
- a glaze powder instead of coating a glaze powder with an insulating substance you can electrostatically applicable glaze powder for the purpose of increasing the specific resistance and improving the fluidizability according to WO 98/54105 also contain a small amount of a carboxylic acid salt.
- a glaze powder according to WO 98/58889 containing two glass fittings with different start of softening, high-quality glazes can be achieved in a high layer thickness.
- the adhesive strength of the glaze powder on the substrate before the fire can be increased by using a physically or chemically activatable organic adhesive, such as a thermoplastic polymer.
- an electrically insulating ceramic element is used. This also makes it possible to coat the ceramic element of a spark plug, for example for a gasoline engine.
- an electrically conductive ceramic element is used. This considerably simplifies the electrostatic coating and at the same time the coating according to the invention of a glow plug for a glow plug, for example for a diesel engine, can be implemented. The much more uniform coating of the edges that can be achieved compared to previous methods is crucial for the functioning of the glow plug. This could not be reliably guaranteed with conventional manufacturing processes.
- FIG. 1 shows an electrically insulating ceramic element according to the invention
- Figure 2 shows an electrically conductive ceramic element according to the invention for a glow plug
- FIG. 3 shows a section of a longitudinal section of a ceramic element coated according to the invention.
- FIG. 1 shows an electrically insulating ceramic element 1 that has a glaze 2 in an area A.
- the glaze 2 improves both the strength of the ceramic element 1 and the repellency of dirt and water. In particular, this reduces damage during installation or removal and the occurrence of malfunctions during operation.
- FIG. 2 shows an electrically conductive ceramic element 3 for a glow plug, which is coated in a region B with a glaze 2 applied according to the invention.
- the glaze 2 is applied both in the jacket area and in the end area of the ceramic element 3.
- the glaze is removed in a semicircular area C and a rectangular area D, for example ground away, and contacting is applied to each of the two areas C, D in a manner not shown.
- the ceramic element 3 has an insulation layer 4, wherein during operation of the glow plug, for example
- the positive pole is realized by contacting area C and the negative pole by contacting area D.
- a ceramic tip 5 begins to glow comparatively quickly, so that the starting process of a diesel engine is advantageously shortened compared to metallic glow plugs.
- the glaze 2 enables electrical insulation of the glow plug from the metallic motor housing.
- FIG. 3 shows a section of a longitudinal section of a ceramic element 1, 3.
- FIG. 3 illustrates that the glaze 2 has a comparatively uniform layer thickness both on edges 6 and in a throat 7.
- the comparatively thick coating on the edges 6 is functionally decisive for a glow pencil candle.
- the relatively thin layer in the throats 7 is also favorable here.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Resistance Heating (AREA)
- Spark Plugs (AREA)
- Glass Compositions (AREA)
- Control Of Eletrric Generators (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/470,526 US7224110B2 (en) | 2001-01-29 | 2001-12-17 | Starting element having ceramic component electrostatically coated with a dry glaze |
EP01990319A EP1358434B1 (de) | 2001-01-29 | 2001-12-19 | Verfahren zur herstellung eines startelementes |
BR0116843-6A BR0116843A (pt) | 2001-01-29 | 2001-12-19 | Processo para a produção de um elemento de arranque |
JP2002561868A JP2004518103A (ja) | 2001-01-29 | 2001-12-19 | 始動装置の製造方法 |
HU0303196A HUP0303196A3 (en) | 2001-01-29 | 2001-12-19 | Method for producing a starting element |
PL363326A PL196865B1 (pl) | 2001-01-29 | 2001-12-19 | Sposób wytwarzania elementu rozruchowego, zwłaszcza trzpieniowej świecy żarowej, element ceramiczny elementu rozruchowego oraz trzpieniowa świeca żarowa |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10104121A DE10104121C2 (de) | 2001-01-29 | 2001-01-29 | Verfahren zur Herstellung eines Startelementes |
DE10104021.7 | 2001-01-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002061338A1 true WO2002061338A1 (de) | 2002-08-08 |
Family
ID=7672221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/004791 WO2002061338A1 (de) | 2001-01-29 | 2001-12-19 | Verfahren zur herstellung eines startelementes |
Country Status (11)
Country | Link |
---|---|
US (1) | US7224110B2 (de) |
EP (1) | EP1358434B1 (de) |
JP (1) | JP2004518103A (de) |
CN (1) | CN1232759C (de) |
BR (1) | BR0116843A (de) |
CZ (1) | CZ20032045A3 (de) |
DE (1) | DE10104121C2 (de) |
ES (1) | ES2333582T3 (de) |
HU (1) | HUP0303196A3 (de) |
PL (1) | PL196865B1 (de) |
WO (1) | WO2002061338A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008041957A1 (de) | 2008-09-10 | 2010-03-11 | Robert Bosch Gmbh | Verfahren zur Herstellung eines keramischen Schichtverbundes |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63297925A (ja) * | 1987-05-28 | 1988-12-05 | Kyocera Corp | 高耐蝕性グロ−プラグ |
EP0382003A2 (de) | 1989-02-07 | 1990-08-16 | BAYER ITALIA S.p.A. | Keramikpulver für den elektrostatischen Pulverauftrag und Verfahren zu deren Herstellung |
WO1994026679A1 (en) | 1993-05-06 | 1994-11-24 | British Ceramic Research Limited | Firable material for electrostatic coating |
JPH07103480A (ja) * | 1993-10-04 | 1995-04-18 | Isuzu Ceramics Kenkyusho:Kk | セラミック製グロープラグ |
WO1997008115A1 (de) | 1995-08-24 | 1997-03-06 | Cerdec Aktiengesellschaft Keramische Farben | Verfahren zur herstellung keramischer beschichtungen und beschichtungspulver hierfür |
WO1998054105A1 (de) | 1997-05-28 | 1998-12-03 | Cerdec Aktiengesellschaft Keramische Farben | Beschichtungspulver zum elektrostatischen beschichten von glas sowie keramischen und metallischen substraten, seine herstellung und verwendung |
WO1998058889A1 (de) | 1997-06-24 | 1998-12-30 | Cerdec Aktiengesellschaft Keramische Farben | Verfahren zur herstellung keramischer und glasiger beschichtungen, elektrostatisch applizierbares beschichtungspulver hierfür und seine verwendung |
EP1065446A2 (de) * | 1999-07-02 | 2001-01-03 | Beru AG | Keramischer Heizstab und diesen enthaltende Glühkerze und Verfahren zu deren Herstellung |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH676525A5 (de) * | 1988-07-28 | 1991-01-31 | Battelle Memorial Institute | |
US5153070A (en) | 1990-08-01 | 1992-10-06 | Corning Incorporated | Coated refractory article and method |
JPH11106234A (ja) | 1997-09-30 | 1999-04-20 | Nippon Electric Glass Co Ltd | 釉薬用ガラス組成物 |
GB2332021A (en) | 1997-12-04 | 1999-06-09 | Flashpoint Spark Plugs Limited | An iridium coated electrode for an igniter device |
JP3801835B2 (ja) | 2000-03-23 | 2006-07-26 | 日本特殊陶業株式会社 | セラミックヒータの製造方法 |
-
2001
- 2001-01-29 DE DE10104121A patent/DE10104121C2/de not_active Expired - Fee Related
- 2001-12-17 US US10/470,526 patent/US7224110B2/en not_active Expired - Fee Related
- 2001-12-19 ES ES01990319T patent/ES2333582T3/es not_active Expired - Lifetime
- 2001-12-19 EP EP01990319A patent/EP1358434B1/de not_active Expired - Lifetime
- 2001-12-19 WO PCT/DE2001/004791 patent/WO2002061338A1/de active Application Filing
- 2001-12-19 JP JP2002561868A patent/JP2004518103A/ja active Pending
- 2001-12-19 BR BR0116843-6A patent/BR0116843A/pt not_active Application Discontinuation
- 2001-12-19 CZ CZ20032045A patent/CZ20032045A3/cs unknown
- 2001-12-19 CN CNB018223117A patent/CN1232759C/zh not_active Expired - Fee Related
- 2001-12-19 HU HU0303196A patent/HUP0303196A3/hu unknown
- 2001-12-19 PL PL363326A patent/PL196865B1/pl not_active IP Right Cessation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63297925A (ja) * | 1987-05-28 | 1988-12-05 | Kyocera Corp | 高耐蝕性グロ−プラグ |
EP0382003A2 (de) | 1989-02-07 | 1990-08-16 | BAYER ITALIA S.p.A. | Keramikpulver für den elektrostatischen Pulverauftrag und Verfahren zu deren Herstellung |
WO1994026679A1 (en) | 1993-05-06 | 1994-11-24 | British Ceramic Research Limited | Firable material for electrostatic coating |
JPH07103480A (ja) * | 1993-10-04 | 1995-04-18 | Isuzu Ceramics Kenkyusho:Kk | セラミック製グロープラグ |
WO1997008115A1 (de) | 1995-08-24 | 1997-03-06 | Cerdec Aktiengesellschaft Keramische Farben | Verfahren zur herstellung keramischer beschichtungen und beschichtungspulver hierfür |
WO1998054105A1 (de) | 1997-05-28 | 1998-12-03 | Cerdec Aktiengesellschaft Keramische Farben | Beschichtungspulver zum elektrostatischen beschichten von glas sowie keramischen und metallischen substraten, seine herstellung und verwendung |
WO1998058889A1 (de) | 1997-06-24 | 1998-12-30 | Cerdec Aktiengesellschaft Keramische Farben | Verfahren zur herstellung keramischer und glasiger beschichtungen, elektrostatisch applizierbares beschichtungspulver hierfür und seine verwendung |
EP1065446A2 (de) * | 1999-07-02 | 2001-01-03 | Beru AG | Keramischer Heizstab und diesen enthaltende Glühkerze und Verfahren zu deren Herstellung |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 013, no. 130 (M - 808) 30 March 1989 (1989-03-30) * |
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 07 31 August 1995 (1995-08-31) * |
Also Published As
Publication number | Publication date |
---|---|
BR0116843A (pt) | 2003-12-16 |
ES2333582T3 (es) | 2010-02-24 |
PL196865B1 (pl) | 2008-02-29 |
HUP0303196A3 (en) | 2004-08-30 |
US20040095049A1 (en) | 2004-05-20 |
US7224110B2 (en) | 2007-05-29 |
CN1488057A (zh) | 2004-04-07 |
CZ20032045A3 (cs) | 2004-03-17 |
EP1358434A1 (de) | 2003-11-05 |
HUP0303196A2 (hu) | 2003-12-29 |
DE10104121C2 (de) | 2003-03-06 |
CN1232759C (zh) | 2005-12-21 |
PL363326A1 (en) | 2004-11-15 |
DE10104121A1 (de) | 2002-08-22 |
EP1358434B1 (de) | 2009-10-07 |
JP2004518103A (ja) | 2004-06-17 |
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