EP1533571A2 - Procédé de fabrication de bougies de préchauffage en céramique - Google Patents

Procédé de fabrication de bougies de préchauffage en céramique Download PDF

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Publication number
EP1533571A2
EP1533571A2 EP04023484A EP04023484A EP1533571A2 EP 1533571 A2 EP1533571 A2 EP 1533571A2 EP 04023484 A EP04023484 A EP 04023484A EP 04023484 A EP04023484 A EP 04023484A EP 1533571 A2 EP1533571 A2 EP 1533571A2
Authority
EP
European Patent Office
Prior art keywords
layers
layer
spraying
glow plug
coextrudate
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
EP04023484A
Other languages
German (de)
English (en)
Other versions
EP1533571A3 (fr
EP1533571B1 (fr
Inventor
Oliver Göb
Hans Houben
Lutz Frassek
Henning Von Watzdorf
Martin Allgaier
Johann Weissenbach
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.)
BorgWarner Ludwigsburg GmbH
Original Assignee
Beru AG
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 Beru AG filed Critical Beru AG
Publication of EP1533571A2 publication Critical patent/EP1533571A2/fr
Publication of EP1533571A3 publication Critical patent/EP1533571A3/fr
Application granted granted Critical
Publication of EP1533571B1 publication Critical patent/EP1533571B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • 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 ceramic glow plug, which has more than two layers.
  • Ceramic glow plugs that are prefabricated as glow plugs be used in the field of internal combustion engines, are characterized by being faster than previously used Steel glow plugs can be heated up and a far higher Have lifespan.
  • the object underlying the invention is therefore It is to provide a method of the type mentioned, the is cost-effective and suitable for series production.
  • the best for the optimal Function of the glow plug desired layer structure in a simple Way namely by simultaneous extrusion of multiple layers be formed in the form of a tube or a rod.
  • the method according to the invention is in particular a by coextrusion, ie by simultaneous extrusion of all required Layers of ceramic manufactured raw cylinder Glow pin after calibration of the diameter and lengths of the Blanks tapered by machining processes at one end and provided at the other end with a contacting hole.
  • the cylinder machined in this way subsequently becomes debinded and presintered to provide sufficient strength for to ensure the subsequent process steps.
  • the above-mentioned taper of the raw cylinder at one end and the formation of the contacting hole at the other end can even after white machining by means of diamond tools Debinding and pre-sintering done.
  • the green body After drying, the green body is fired and through a simple and inexpensive pass-through grinding process ground to its final geometry.
  • an additional conductive or non-conductive layer are applied to the actual heating layer protects against corrosion or even as Heating layer and Stromumlenkungs Mrs serves or the layer structure be completed.
  • Fig. 1A includes a glow plug for a ceramic glow plug a rotationally symmetrical structure from an electrically conductive inner cylinder 1, a coaxial to the inner cylinder 1 provided on the cylinder outer surface Insulating layer 2, a coaxially provided conductive Layer 3 and the actual heating layer 4, as coaxial Layer 4a and as a perpendicular to the glow pin axis Layer 4b at the end of the arrangement of inner cylinder 1 and layers 2, 3 is formed.
  • the cross sections can be asymmetrical, be square or rectangular.
  • Fig. 2 shows that in the manufacture of a glow plug after Fig. 1A related principle of coextrusion.
  • the layer structure is passed through extruders 10, 11 and 12 in a coextrusion head 13 educated.
  • the extruder 10 produces the conductive core 1
  • the Extruder 11 applies the insulating layer 2
  • with the extruder 12 becomes the layered structure with the outer conductive Layer 3 completed.
  • three layers can be one in the Plastic technology used tool with quill and spiral distributor act.
  • the processed according to FIG. 3 raw cylinder is then debind and pre-sintered to give it sufficient strength for the subsequent operations.
  • This layer 4 is a coaxial layer 4a and perpendicular formed to the glow plug layer 4b at the end of the arrangement and represents the connection between the interior and the Outer conductor.
  • Embodiment is again based on a three-layered Coextrudate with internal, hatched shown Insulator sleeve through the process steps in Fig. 3 and 4 shown construction produced in which the actual heating layer formed on the outer jacket only by a cross-sectional constriction becomes.
  • Fig. 1D shows from top to bottom the annealing zone and the contacting zone.
  • the necessary for the diversion of the electric current Layer on the face can turn by spraying a Schlickers before sintering but also by diving, overspray or thermal spraying are formed.
  • a Schlickers before sintering but also by diving, overspray or thermal spraying are formed.
  • Welding process e.g. Ultrasonic, friction welding and the like be used.
  • Fig. 1C is starting from a coextruded, two-layer tube with internal Insulator layer, which with the in Fig. 6 shown Coextrusion is formed by combined injection and overspraying 7 on a conventional injection molding machine, the necessary for the function of the glow plug overall structure formed with core 5.
  • Coextrusion is formed by combined injection and overspraying 7 on a conventional injection molding machine, the necessary for the function of the glow plug overall structure formed with core 5.
  • the inventive method can be used in a variety of Various variations are performed, making it easy adapted to different layer thicknesses and layer types can be.
  • Fig. 5 follows all the embodiments described above a sintering and an inexpensive hard machining, around the necessary for the installation of the ceramic glow plug To ensure tolerances.
  • FIG. 5 This can be shown in FIG. 5 by a simple and inexpensive Pass-through grinding process by means of a pinch roller 15 and a grinding wheel 16 done.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
EP04023484.1A 2003-11-19 2004-10-01 Procédé de fabrication de bougies de préchauffage en céramique Not-in-force EP1533571B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10353972A DE10353972B4 (de) 2003-11-19 2003-11-19 Verfahren zum Herstellen von keramischen Glühkerzen
DE10353972 2003-11-19

Publications (3)

Publication Number Publication Date
EP1533571A2 true EP1533571A2 (fr) 2005-05-25
EP1533571A3 EP1533571A3 (fr) 2008-01-02
EP1533571B1 EP1533571B1 (fr) 2014-03-19

Family

ID=34428795

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04023484.1A Not-in-force EP1533571B1 (fr) 2003-11-19 2004-10-01 Procédé de fabrication de bougies de préchauffage en céramique

Country Status (5)

Country Link
US (1) US7160584B2 (fr)
EP (1) EP1533571B1 (fr)
JP (1) JP2005147654A (fr)
KR (1) KR101169216B1 (fr)
DE (1) DE10353972B4 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005024623A1 (de) * 2005-05-30 2006-12-14 Beru Ag Verfahren zum Herstellen eines keramischen Glühstiftes für eine Glühkerze
EP1846695A2 (fr) * 2005-02-05 2007-10-24 Saint-Gobain Ceramics & Plastics, Inc. Allumeurs ceramiques
WO2010003727A1 (fr) * 2008-07-11 2010-01-14 Robert Bosch Gmbh Tube à incandescence, notamment pour une bougie-crayon de préchauffage
EP2668011A2 (fr) * 2011-01-25 2013-12-04 Oxane Materials, Inc. Procédé d'extrusion pour former des agents de soutènement

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10353973B4 (de) * 2003-11-19 2006-08-17 Beru Ag Verfahren zum Herstellen eines keramischen Glühstiftes für eine keramische Glühkerze
EP1815185A2 (fr) * 2004-10-28 2007-08-08 Saint-Gobain Corporation Allumeurs ceramiques
DE102006016566B4 (de) * 2005-09-22 2008-06-12 Beru Ag Zusammengesetzter Leiter, insbesondere für Glühkerzen für Dieselmotoren
US7607206B2 (en) * 2005-12-29 2009-10-27 Federal Mogul World Wide, Inc. Method for forming layered heating element for glow plug
DE102006018606B4 (de) * 2006-01-04 2008-05-08 Beru Ag Messglühkerze
US20070221647A1 (en) * 2006-03-23 2007-09-27 Federal-Mogul World Wide, Inc. Multi-layer heating element
JP4794338B2 (ja) * 2006-03-29 2011-10-19 京セラ株式会社 セラミックヒータ
DE102007027319A1 (de) * 2007-06-14 2008-12-18 Beru Ag Zündkerze und Verfahren zur Herstellung einer Zündkerze
US8183501B2 (en) * 2007-12-13 2012-05-22 Delphi Technologies, Inc. Method for controlling glow plug ignition in a preheater of a hydrocarbon reformer
WO2009085319A1 (fr) * 2007-12-29 2009-07-09 Saint-Gobain Cermics & Plastics, Inc. Allumeur céramique coaxial et procédés de fabrication
US8820133B2 (en) * 2008-02-01 2014-09-02 Apple Inc. Co-extruded materials and methods
DE102008035036B3 (de) * 2008-07-26 2010-04-15 Beru Ag Keramische Glühkerze
DE102010045780A1 (de) * 2010-09-17 2012-03-22 Rohde & Schwarz Gmbh & Co. Kg Kalibriereinheit für ein Messgerät
DE102011055283B4 (de) 2011-11-11 2016-06-23 Borgwarner Ludwigsburg Gmbh Glühkerze und Verfahren zum Herstellen eines Glühstifts
CN110759730A (zh) * 2018-07-25 2020-02-07 比亚迪股份有限公司 一种复合陶瓷的制备方法及复合陶瓷
CN112571583A (zh) * 2020-11-27 2021-03-30 珠海读书郎网络教育有限公司 一种导电陶瓷的挤出装置及挤出方法

Citations (6)

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DE3621216C2 (fr) 1985-06-27 1988-11-17 Jidosha Kiki Co., Ltd.
EP0601727B1 (fr) 1992-11-23 1997-07-16 THE ELECTROFUEL MANUFACTURING Co. Elément de chauffage en céramique pour bougie de réchauffage avec coefficient adaptés de dilatation thermique
DE19844347A1 (de) 1998-09-28 2000-03-30 Bosch Gmbh Robert Keramische Glühstiftkerze
US6084212A (en) 1999-06-16 2000-07-04 Le-Mark International Ltd Multi-layer ceramic heater element and method of making same
US6184497B1 (en) 1999-06-16 2001-02-06 Le-Mark International Ltd. Multi-layer ceramic heater element and method of making same
DE10155203A1 (de) 2001-11-09 2003-06-18 Bosch Gmbh Robert Laserbearbeitungsvorrichtung

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FR1534467A (fr) * 1967-08-21 1968-07-26 Texas Instruments Inc Conducteur électrique isolé et son procédé de fabrication
US4418661A (en) * 1981-02-07 1983-12-06 Robert Bosch Gmbh Glow plug, particularly for diesel engine
JPS5866720A (ja) * 1981-10-15 1983-04-21 Ngk Spark Plug Co Ltd セラミツクグロ−プラグ
JPS59153027A (ja) * 1983-02-18 1984-08-31 Nippon Soken Inc グロ−プラグ
JPS61217626A (ja) * 1985-03-22 1986-09-27 Jidosha Kiki Co Ltd 自己温度制御型グロ−プラグ
JPS62141424A (ja) * 1985-12-13 1987-06-24 Jidosha Kiki Co Ltd デイ−ゼルエンジン用グロ−プラグ
JPS62221536A (ja) * 1986-03-24 1987-09-29 株式会社神戸製鋼所 複合部材及びその製造方法
JPH02251013A (ja) * 1989-03-24 1990-10-08 Hitachi Metals Ltd ディーゼルエンジン用グロープラグ
US5338716A (en) * 1992-12-01 1994-08-16 Akzo Nobel Nv Non-oxide metal ceramic catalysts comprising metal oxide support and intermediate ceramic passivating layer
AU1669695A (en) * 1994-02-18 1995-09-04 Morgan Matroc S.A. Hot surface igniter
JPH09159170A (ja) * 1995-12-04 1997-06-20 Tokyo Gas Co Ltd セラミックグロープラグ
JPH09191350A (ja) * 1996-01-10 1997-07-22 Canon Inc マルチメディア通信装置
JPH1154246A (ja) * 1997-07-30 1999-02-26 Kyocera Corp セラミック発熱体
DE19857958A1 (de) * 1998-12-16 2000-06-21 Bosch Gmbh Robert Verfahren zur Herstellung eines Stiftheizer
DE19930334C2 (de) * 1999-07-02 2003-07-31 Beru Ag Keramischer Heizstab und diesen enthaltende Glühkerze und Verfahren zu dessen Herstellung
DE10053327C2 (de) * 2000-10-27 2003-04-10 Bosch Gmbh Robert Stiftheizer
DE10055082A1 (de) * 2000-11-07 2002-05-16 Bosch Gmbh Robert Keramischer Verbundwerkstoff
US6610964B2 (en) * 2001-03-08 2003-08-26 Stephen J. Radmacher Multi-layer ceramic heater
US6396028B1 (en) * 2001-03-08 2002-05-28 Stephen J. Radmacher Multi-layer ceramic heater
DE10155230C5 (de) * 2001-11-09 2006-07-13 Robert Bosch Gmbh Stiftheizer in einer Glühstiftkerze und Glühstiftkerze
DE10310155B4 (de) 2003-03-07 2008-07-31 Siemens Ag Zugangskontrollsystem für ein Objekt, insbesondere für ein Kraftfahrzeug und Verfahren zum Betreiben eines Zugangskontrollsystems
DE10353973B4 (de) * 2003-11-19 2006-08-17 Beru Ag Verfahren zum Herstellen eines keramischen Glühstiftes für eine keramische Glühkerze

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3621216C2 (fr) 1985-06-27 1988-11-17 Jidosha Kiki Co., Ltd.
EP0601727B1 (fr) 1992-11-23 1997-07-16 THE ELECTROFUEL MANUFACTURING Co. Elément de chauffage en céramique pour bougie de réchauffage avec coefficient adaptés de dilatation thermique
DE19844347A1 (de) 1998-09-28 2000-03-30 Bosch Gmbh Robert Keramische Glühstiftkerze
US6084212A (en) 1999-06-16 2000-07-04 Le-Mark International Ltd Multi-layer ceramic heater element and method of making same
US6184497B1 (en) 1999-06-16 2001-02-06 Le-Mark International Ltd. Multi-layer ceramic heater element and method of making same
DE10155203A1 (de) 2001-11-09 2003-06-18 Bosch Gmbh Robert Laserbearbeitungsvorrichtung

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1846695A2 (fr) * 2005-02-05 2007-10-24 Saint-Gobain Ceramics & Plastics, Inc. Allumeurs ceramiques
EP1846695A4 (fr) * 2005-02-05 2012-09-19 Saint Gobain Ceramics Allumeurs ceramiques
DE102005024623A1 (de) * 2005-05-30 2006-12-14 Beru Ag Verfahren zum Herstellen eines keramischen Glühstiftes für eine Glühkerze
DE102005024623B4 (de) * 2005-05-30 2007-08-23 Beru Ag Verfahren zum Herstellen eines keramischen Glühstiftes für eine Glühkerze
WO2010003727A1 (fr) * 2008-07-11 2010-01-14 Robert Bosch Gmbh Tube à incandescence, notamment pour une bougie-crayon de préchauffage
EP2668011A2 (fr) * 2011-01-25 2013-12-04 Oxane Materials, Inc. Procédé d'extrusion pour former des agents de soutènement
EP2668011A4 (fr) * 2011-01-25 2014-10-15 Oxane Materials Inc Procédé d'extrusion pour former des agents de soutènement

Also Published As

Publication number Publication date
JP2005147654A (ja) 2005-06-09
US20050145613A1 (en) 2005-07-07
KR20050048473A (ko) 2005-05-24
DE10353972A1 (de) 2005-06-02
US7160584B2 (en) 2007-01-09
EP1533571A3 (fr) 2008-01-02
KR101169216B1 (ko) 2012-07-30
DE10353972B4 (de) 2006-03-16
EP1533571B1 (fr) 2014-03-19

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