EP0248977A1 - Elément d'amorçage électrique et son procédé de fabrication - Google Patents

Elément d'amorçage électrique et son procédé de fabrication Download PDF

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Publication number
EP0248977A1
EP0248977A1 EP87102055A EP87102055A EP0248977A1 EP 0248977 A1 EP0248977 A1 EP 0248977A1 EP 87102055 A EP87102055 A EP 87102055A EP 87102055 A EP87102055 A EP 87102055A EP 0248977 A1 EP0248977 A1 EP 0248977A1
Authority
EP
European Patent Office
Prior art keywords
ignition
contact pins
ignition bridge
ceramic body
outer ring
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
EP87102055A
Other languages
German (de)
English (en)
Other versions
EP0248977B1 (fr
Inventor
Richard Dr. Bender
Anton Bretfeld
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel 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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Priority to AT87102055T priority Critical patent/ATE71217T1/de
Publication of EP0248977A1 publication Critical patent/EP0248977A1/fr
Application granted granted Critical
Publication of EP0248977B1 publication Critical patent/EP0248977B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/12—Bridge initiators
    • F42B3/124—Bridge initiators characterised by the configuration or material of the bridge

Definitions

  • the invention relates to the object described above.
  • an ignition set including an electrical ignition means which consists of an electrically conductive housing and an insulated arranged therein and accessible from the outside pole piece, this pole piece is electrically conductively connected to the housing via an ignition bridge.
  • an insulating body made of glass or ceramic with metal layer contacts that are in contact with the primer and partly with a firing bridge made of tantalum or tantalum nitride are covered.
  • One of the metal layer contacts which can consist of nickel, palladium as well as palladium-silver, palladium-gold, platinum-silver, platinum-gold and silver-aluminum alloys, is located with the pole piece via a bore lined with conductive material in the insulating body in an electrically conductive connection, while the ground connection to the outer housing is formed with a support ring which presses the insulating body containing the metal layer contacts against the pole piece.
  • these so-called single-pole electrical ignition devices can only be produced in a comparatively complex process, since the ignition bridge must be contacted with many parts of the ignition device.
  • the invention has for its object to make an electrical ignition bridge carrier available, which does not have the disadvantages of the previously known constructions and is mechanically highly resilient. At the same time, a process is to be developed for the production of this ignition bridge carrier, which can be carried out comparatively simply without complex post-processing, but with great certainty with regard to the process products and their properties.
  • an electrical ignition bridge carrier for the ignition of ignition kits, delay kits and pyrotechnic mixtures as well as for the ignition of primary primers and kits, which is characterized in that it consists of a ceramic body 2 with one or more bores inserted into a metallic outer ring 1, in the solid or tubular contact pins 3 as current supply lines are tightly and tightly fitted and are surrounded by a conductive layer 4, between which the ignition bridge 5 is located.
  • Stainless steel which can also be used as a material for the contact pins 3, has proven particularly useful as the material for the metallic outer ring 1.
  • other metallic materials for the metallic outer ring 1 and / or the contact pins 3 for example aluminum, copper, nickel and their alloys, titanium, zirconium, tantalum and other heat-resistant and high-melting metals and alloys, in particular also the cobalt-nickel-iron alloy known under the name KOVAR.
  • Ceramic materials can be used as materials for the ceramic body 2, in particular those based on aluminum oxide, silicon dioxide, silicon nitride, silicon carbide and zirconium dioxide.
  • the tight and firm connection or fitting between the metallic outer ring 1 and the ceramic body 2 on the one hand and between the ceramic body 2 and the contact pins 3 on the other hand can be done by gluing using adhesives known to the person skilled in the art, but also by cementing, but preferably by Glazed in.
  • the materials known to any person skilled in the art, with which metallic materials and ceramic materials are tightly bonded, can be used for the preferred glazing.
  • alkali and alkaline earth silicate glasses, glasses based on borosilicate and glasses containing oxides of rare earth have proven particularly useful.
  • a glass which is suitable for this glazing connection between metallic and ceramic material a glass of the following composition can be used:
  • ceramic pastes for example the pastes shown below in their composition:
  • Silicon or silicon alloys mixed with quartz powder, glass powder and clay can also be used to permanently bond the ceramic with the metallic materials.
  • the actual ignition bridge 5 between the contact pins 3 or the conductive layers 4 enclosing them flatly can either be formed by a wire, as can be seen, for example, from FIG. 4, which will be explained in detail later.
  • the application of the ignition bridge 5 also has special advantages in screen printing technology; resistance ranges from 1 to 100 ohms can be achieved in this way.
  • the ignition bridge it is also possible to apply the ignition bridge as a thin film in an atomization process known per se or by vapor deposition in a vacuum.
  • the wire-shaped ignition bridges are either soldered or welded on.
  • Precious metal materials as already mentioned above, have also proven particularly useful as materials for these ignition bridges.
  • These resistance bridges which are specially applied using screen printing technology, have an already sharply defined resistance range after heat treatment, but, if desired, it is possible to achieve resistance values of even smaller fluctuation ranges by post-processing in the laser trimming method known to the person skilled in the art.
  • the method for producing the electrical ignition bridge carrier according to the invention is essentially characterized in that one or more holes having a ceramic body is fitted into a metallic, geometrically shaped outer ring and is tightly connected to the metallic outer ring, whereupon the metallic contact pins into the holes in the ceramic body are fitted and also tightly connected to the ceramic body and then either wire-shaped ignition bridges between the contact pins are produced by soldering or welding, or preferably ignition bridges are produced by sputtering or vapor deposition in a vacuum or screen printing process.
  • an electrically conductive layer is preferably first applied around the contact pins, via which the connection between contact pins and ignition bridge is established.
  • the ignition bridge carrier with the ceramic elements according to the invention is distinguished from the previously known embodiments in that, owing to the higher compressive strength of the ceramic materials, a far higher mechanical load-bearing capacity can be achieved than was possible with a glass bushing.
  • the ceramic materials have a higher thermal conductivity than normal glasses, which is extremely favorable, for example proves in the production of 1A / 1W ignition elements that is possible for the first time.
  • the ceramic bushings enable the production of welded ceramic-based ignition elements which, in addition to their mechanical strength, have the further advantage that they are completely sealed.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Fuses (AREA)
  • Spark Plugs (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
EP87102055A 1986-02-27 1987-02-13 Elément d'amorçage électrique et son procédé de fabrication Expired - Lifetime EP0248977B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87102055T ATE71217T1 (de) 1986-02-27 1987-02-13 Elektrisches anzuendelement und verfahren zu seiner herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863606364 DE3606364A1 (de) 1986-02-27 1986-02-27 Elektrischer zuendbrueckentraeger zur anzuendung von anzuendsaetzen, verzoegerungssaetzen und pyrotechnischen mischungen sowie zur zuendung von primaerzuendstoffen und -saetzen und verfahren zu seiner herstellung
DE3606364 1986-02-27

Publications (2)

Publication Number Publication Date
EP0248977A1 true EP0248977A1 (fr) 1987-12-16
EP0248977B1 EP0248977B1 (fr) 1992-01-02

Family

ID=6295070

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87102055A Expired - Lifetime EP0248977B1 (fr) 1986-02-27 1987-02-13 Elément d'amorçage électrique et son procédé de fabrication

Country Status (5)

Country Link
EP (1) EP0248977B1 (fr)
AT (1) ATE71217T1 (fr)
DE (2) DE3606364A1 (fr)
ES (1) ES2028803T3 (fr)
GR (1) GR3003495T3 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0586133A2 (fr) * 1992-08-27 1994-03-09 Oea, Inc. Construction d'un détonateur entièrement vitré pour un système de gonflage
WO1998013836A1 (fr) * 1996-09-28 1998-04-02 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Procede d'egalisation de resistances a couches au moyen du faisceau d'un laser excimere
WO1999018586A1 (fr) * 1997-10-03 1999-04-15 Schaffler & Co. Gesellschaft Mbh Element chauffant et son procede de fabrication
EP0932015A1 (fr) 1998-01-23 1999-07-28 Diehl Stiftung & Co. Détonateur
US6274252B1 (en) 1994-08-04 2001-08-14 Coors Ceramics Company Hermetic glass-to-metal seal useful in headers for airbags
EP1455160A1 (fr) * 2003-03-03 2004-09-08 Schott Glas Traversée métal-matériau de fixation et procédé de fabrication d'une tête d'initiateur avec traversée métal-matériau de fixation
EP1808667A3 (fr) * 2003-03-03 2007-08-01 Schott AG Réalisation de matériau de fixation en métal et procédé de fabrication d'un corps de base d'une réalisation de matériau de fixation en métal
DE102006004036A1 (de) * 2006-01-27 2007-08-09 Schott Ag Metall-Fixiermaterial-Durchführung und Verwendung einer derartigen Durchführung sowie Airbag und Gurtspanner mit einer Zündeinrichtung
US8205554B2 (en) 2006-11-28 2012-06-26 Schott Ag Firing apparatus for a pyrotechnic protection apparatus
US8276514B2 (en) 2003-03-03 2012-10-02 Schott Ag Metal fixing material bushing and method for producing a base plate of a metal fixing material bushing
US8733250B2 (en) 2006-01-27 2014-05-27 Schott Ag Metal-sealing material-feedthrough and utilization of the metal-sealing material feedthrough with an airbag, a belt tensioning device, and an ignition device
US9423218B2 (en) 2010-09-17 2016-08-23 Schott Ag Method for producing a ring-shaped or plate-like element
WO2020016153A1 (fr) * 2018-07-20 2020-01-23 Schott Ag Passage en matériau de fixation métallique à faible risque de défaillance
US10684102B2 (en) 2010-09-17 2020-06-16 Schott Ag Method for producing a ring-shaped or plate-like element
CN113513953A (zh) * 2021-03-25 2021-10-19 四川仲玛智造科技有限公司 一种用于生产电点火头支架的生产线
KR102676058B1 (ko) * 2018-07-20 2024-06-18 쇼오트 아게 낮은 결함 민감성을 갖는 금속 고정 재료 리드 스루

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0792358B2 (ja) 1987-09-14 1995-10-09 日本工機株式会社 電気式点火装置用点火器
DE4307774A1 (de) * 1993-03-12 1994-09-15 Dynamit Nobel Ag Anzündeinrichtung
SE517704C2 (sv) 1999-05-10 2002-07-09 Tzn Forschung & Entwicklung Patron med elektrotermisk tändanordning
DE19936650C2 (de) * 1999-05-10 2002-10-24 Rheinmetall W & M Gmbh Patrone

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659527A (en) * 1970-10-29 1972-05-02 Atomic Energy Commission High temperature detonator
DE2816300A1 (de) * 1977-04-19 1978-10-26 Bofors Ab Elektrischer zuender
DE2840738A1 (de) * 1978-08-10 1980-02-21 Inventa Ag Elektrische zuendvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659527A (en) * 1970-10-29 1972-05-02 Atomic Energy Commission High temperature detonator
DE2816300A1 (de) * 1977-04-19 1978-10-26 Bofors Ab Elektrischer zuender
DE2840738A1 (de) * 1978-08-10 1980-02-21 Inventa Ag Elektrische zuendvorrichtung

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0586133A3 (fr) * 1992-08-27 1994-05-18 Oea, Inc. Construction d'un détonateur entièrement vitré pour un système de gonflage
US5404263A (en) * 1992-08-27 1995-04-04 Oea, Inc. All-glass header assembly used in an inflator system
EP0586133A2 (fr) * 1992-08-27 1994-03-09 Oea, Inc. Construction d'un détonateur entièrement vitré pour un système de gonflage
US6274252B1 (en) 1994-08-04 2001-08-14 Coors Ceramics Company Hermetic glass-to-metal seal useful in headers for airbags
WO1998013836A1 (fr) * 1996-09-28 1998-04-02 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Procede d'egalisation de resistances a couches au moyen du faisceau d'un laser excimere
KR100525939B1 (ko) * 1997-10-03 2005-11-08 샤플러 운트 코. 게젤샤프트 엠베하 가열 소자와 이 가열 소자의 제조 방법
WO1999018586A1 (fr) * 1997-10-03 1999-04-15 Schaffler & Co. Gesellschaft Mbh Element chauffant et son procede de fabrication
US6316752B1 (en) 1997-10-03 2001-11-13 Schaffler & Co., Gesellschaft Mbh Heating element with screen-printed Au-Pd resinate layer and Ag-Pd contact areas with solder resistant dams
EP0932015A1 (fr) 1998-01-23 1999-07-28 Diehl Stiftung & Co. Détonateur
JP2010133698A (ja) * 2003-03-03 2010-06-17 Schott Ag 金属固定材ブッシュ及び金属固定材ブッシュの心材を製造する方法
EP1808667A3 (fr) * 2003-03-03 2007-08-01 Schott AG Réalisation de matériau de fixation en métal et procédé de fabrication d'un corps de base d'une réalisation de matériau de fixation en métal
EP1455160A1 (fr) * 2003-03-03 2004-09-08 Schott Glas Traversée métal-matériau de fixation et procédé de fabrication d'une tête d'initiateur avec traversée métal-matériau de fixation
US8276514B2 (en) 2003-03-03 2012-10-02 Schott Ag Metal fixing material bushing and method for producing a base plate of a metal fixing material bushing
US8327765B2 (en) 2003-03-03 2012-12-11 Schott Ag Metal fixing material bushing and method for producing a base plate of a metal fixing material bushing
DE102006004036A1 (de) * 2006-01-27 2007-08-09 Schott Ag Metall-Fixiermaterial-Durchführung und Verwendung einer derartigen Durchführung sowie Airbag und Gurtspanner mit einer Zündeinrichtung
US8127681B2 (en) 2006-01-27 2012-03-06 Schott Ag Metal-sealing material-feedthrough and utilization of the metal-sealing material feedthrough with an airbag, a belt tensioning device, and an ignition device
US8733250B2 (en) 2006-01-27 2014-05-27 Schott Ag Metal-sealing material-feedthrough and utilization of the metal-sealing material feedthrough with an airbag, a belt tensioning device, and an ignition device
US8205554B2 (en) 2006-11-28 2012-06-26 Schott Ag Firing apparatus for a pyrotechnic protection apparatus
US9423218B2 (en) 2010-09-17 2016-08-23 Schott Ag Method for producing a ring-shaped or plate-like element
US9651345B2 (en) 2010-09-17 2017-05-16 Schott Ag Method for producing a ring-shaped or plate-like element
US10684102B2 (en) 2010-09-17 2020-06-16 Schott Ag Method for producing a ring-shaped or plate-like element
WO2020016153A1 (fr) * 2018-07-20 2020-01-23 Schott Ag Passage en matériau de fixation métallique à faible risque de défaillance
CN112469956A (zh) * 2018-07-20 2021-03-09 肖特股份有限公司 具有低的易于出错性的金属固定材料馈通件
EP3851786A1 (fr) * 2018-07-20 2021-07-21 Schott AG Guidage des matières de fixation métalliques à faible risque de défaillance
JP2021529924A (ja) * 2018-07-20 2021-11-04 ショット アクチエンゲゼルシャフトＳｃｈｏｔｔ ＡＧ エラーが発生しにくい金属固定材料フィードスルー
KR102676058B1 (ko) * 2018-07-20 2024-06-18 쇼오트 아게 낮은 결함 민감성을 갖는 금속 고정 재료 리드 스루
CN113513953A (zh) * 2021-03-25 2021-10-19 四川仲玛智造科技有限公司 一种用于生产电点火头支架的生产线

Also Published As

Publication number Publication date
DE3775623D1 (de) 1992-02-13
DE3606364A1 (de) 1987-09-03
GR3003495T3 (en) 1993-02-17
ATE71217T1 (de) 1992-01-15
EP0248977B1 (fr) 1992-01-02
ES2028803T3 (es) 1992-07-16

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