EP0164313A1 - Corps polaire pour un allumeur électrique, son procédé de fabrication et son application - Google Patents

Corps polaire pour un allumeur électrique, son procédé de fabrication et son application Download PDF

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Publication number
EP0164313A1
EP0164313A1 EP85810229A EP85810229A EP0164313A1 EP 0164313 A1 EP0164313 A1 EP 0164313A1 EP 85810229 A EP85810229 A EP 85810229A EP 85810229 A EP85810229 A EP 85810229A EP 0164313 A1 EP0164313 A1 EP 0164313A1
Authority
EP
European Patent Office
Prior art keywords
carrier element
pole body
metal layer
elevation
elevations
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
EP85810229A
Other languages
German (de)
English (en)
Other versions
EP0164313B1 (fr
Inventor
Alfred Wittwer
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.)
Inventa AG fuer Forschung und Patentverwertung
Uhde Inventa Fischer AG
Original Assignee
EMS Inventa AG
Inventa AG fuer Forschung und Patentverwertung
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 EMS Inventa AG, Inventa AG fuer Forschung und Patentverwertung filed Critical EMS Inventa AG
Priority to AT85810229T priority Critical patent/ATE30959T1/de
Publication of EP0164313A1 publication Critical patent/EP0164313A1/fr
Application granted granted Critical
Publication of EP0164313B1 publication Critical patent/EP0164313B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C11/00—Combinations of two or more stoves or ranges, e.g. each having a different kind of energy supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/08—Primers; Detonators
    • F42C19/12—Primers; Detonators electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C11/00—Electric fuzes

Definitions

  • the invention relates to a pole body for an electrical ignition device, consisting of an insulating carrier element on which a metal layer forms at least one ignition bridge, a method for its production and its use.
  • Pole bodies for electrical ignition devices of the type described at the outset are known (DE-A 28 40 738).
  • both poles protrude into a conductive metal layer, the one pole being surrounded by a metal layer with an insulating cutout in contact with the initial explosive.
  • a flat metal surface acts as an ignition bridge between the ends of the spiral recess.
  • Such cutouts are generated in a simple manner by means of a laser beam.
  • An electrical ignition device is also known (DE-A 28 16 300), in which an ignition bridge is attached to a flat metal surface through a circular recess.
  • Thin ignition bridges of this type have generally proven themselves well for electrical detonators with extremely short ignition times, but have the disadvantage that their manufacture by the use of laser beams, caused by the costly equipment required, is extremely complex. The laser beam generating devices also require careful maintenance.
  • the object of the invention is to provide a polar body, which can be economically produced in large quantities, without expensive engravings in a metal layer to produce insulation and image un g of an ignition bridge.
  • the other task is to provide a fully combustible igniter. It is also the task of creating a method for producing this pole body.
  • the above-mentioned object is achieved in that the insulating carrier element projects partially into the metal layer and forms a plane with the surface of the metal layer.
  • the simplest version of the polar body consists of a carrier element and a metal layer.
  • the carrier element isolates the conductive layer from the parts that protrude into the metal layer and just terminate with it.
  • the carrier element is provided on both sides with a closed annular elevation on one side and with another open elevation on the other side, which is interrupted by at least one ignition bridge. These elevations form a unit with the carrier element and are frustoconical in the finished pole body.
  • the open elevation is of spiral design and a bridge is provided between its ends. This creates an ignition bridge approximately parallel between the ends of the survey.
  • the carrier element is provided with a shoulder on the edge. This paragraph facilitates the installation of the pole body in an electrical ignition device, for example by simply clamping it in the corresponding recess in the ignition device.
  • the carrier element is provided with a central bore and at least two edge bores.
  • the electrical connections can expediently be fastened in these bores.
  • the carrier element is made of a homogeneous plastic part. This is done using a plastic that is easy to process by injection molding, has chemical resistance and can withstand higher temperatures.
  • the following are preferably suitable as plastics for the carrier element of the pole body according to the invention: polyamides, polycarbonates, polyoximethylenes, polytetrafluorethylenes, polyurethanes, epoxy resins, urea-formaldehyde resins, crosslinked polyethylenes, in particular filled polyamides or epoxy resins.
  • pole body is completely combustible.
  • plastics have the advantage that they burn completely in practice in a primer.
  • the carrier element provided with a central bore and at least two edge bores made of plastic in a first process step on the side with a closed annular elevation with a wedge-shaped profile and on the other side with an open elevation coated with at least one metal layer and the holes are coated and that in a second Process step the tips of the elevations are removed to the level of the metal layer.
  • the elevations can deviate from a continuous arch shape and can be zigzag, wavy or meandering. It is advantageous and particularly economical to produce the polar body in only two main process steps.
  • the metal layer mechanically and / or chemically and / or by B edamp- fen in a high vacuum is applied to the carrier element.
  • a metal layer is first vapor-deposited in a high vacuum, a metal layer is chemically deposited thereon and another metal layer is vapor-deposited.
  • the elevations are removed by melting and / or grinding.
  • the melting and / or grinding removes the elevations down to the level of the metal layer. This creates clean surfaces that have the required precision in the micrometer range.
  • the pole body is particularly suitable for use in electrical ignition devices for initiating ammunition bodies, projectiles, rockets, explosive devices and shaped charges.
  • a pole body is designated by 1. It consists of a carrier element 2 made of plastic, which has on one side a truncated cone-shaped elevation 3, which in the simplest case forms a circular ring. However, this elevation 3 can also have a different geometry, but must be closed.
  • the outer circumference of the carrier element 2 is provided with a shoulder 4.
  • the opposite side has an elevation 5 of the same type which is smaller in diameter, but which is not closed into a ring.
  • a central hole 6 and one or more holes 7, 7 ' are made in the carrier element 2.
  • the pole body 1 is plated over its entire surface, also in the interior of the bores 6, 7, 7 ', with a metal layer 8, which as a rule consists of several layers.
  • the electrical connections x, y can be made both in the bores 6 and 7, or 7 ', and as alternative connections v, w on the metal layer at the points indicated.
  • FIG 2 is a plan view between the central Bore 6 and the holes 7, 7 'the surface serving to raise bun g 3 shown in the support element. 2
  • the heel 4 of the Trä- g erel ements 2 forms a peripheral flange, serving for fastening in an igniter. '.
  • FIG 3 shows the bottom view of the pole body 1 is provided with a Z ndb Forwarding 9 ü shown.
  • the ignition bridge 9 is formed between the ends as a recess in an annular elevation 5 present in the carrier element 2.
  • the elevation 5 ' is interrupted by a plurality of ignition bridges 9', for example four ignition bridges 9 'being shown.
  • FIG. 5 there is an ignition bridge 9 "between the ends of a spiral elevation 5".
  • FIG. 6 shows the unprocessed carrier element 2 with the conical upper elevations 3, the igniter-side elevations 5 and the shoulder 4 as it is removed from the injection mold as a blank.
  • the elevations 3, 5 are provided with tips 30 and 50.
  • the carrier element 2 described in FIG. 6 is coated with a metal layer 8, for example by vapor deposition in a high vacuum, both on its surfaces and inside the bores 6, 7, 7 '.
  • a metal layer 8 for example by vapor deposition in a high vacuum, both on its surfaces and inside the bores 6, 7, 7 '.
  • Suitable as metals are individually or as alloys: Ni, Cr, Al, Pd, Ta, Mn, Ba, Ti, Re, Au.
  • a further metal layer made of Ag or Au is applied in the range from 1 to 50 pm by chemical means.
  • a further layer can be evaporated in a known manner with the metals mentioned in a high vacuum.
  • both sides are preferably melted or Ab simultaneously leveled.
  • a metallic surface is obtained which is only separated by the insulating plastic surface and which represents the desired ignition bridge 9.
  • the pole body 1 according to the invention has the advantage that, due to the gapless connection between the insulating support element 2 and the conductive part of the metal layers 8, it is very simple in construction, compact, stable and yet practically completely combustible, can be easily installed in an ignition device and in large quantities can be produced economically.
  • the pole body 1 is suitable for use in all types of electrical ignition devices, in particular for ammunition bodies.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Manufacture Of Switches (AREA)
  • Ceramic Products (AREA)
  • Fishing Rods (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Fuses (AREA)
EP85810229A 1984-05-24 1985-05-15 Corps polaire pour un allumeur électrique, son procédé de fabrication et son application Expired EP0164313B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85810229T ATE30959T1 (de) 1984-05-24 1985-05-15 Polkoerper fuer eine elektrische zuendvorrichtung, verfahren zu dessen herstellung und dessen verwendung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH254884 1984-05-24
CH2548/84 1984-05-24

Publications (2)

Publication Number Publication Date
EP0164313A1 true EP0164313A1 (fr) 1985-12-11
EP0164313B1 EP0164313B1 (fr) 1987-11-19

Family

ID=4236269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85810229A Expired EP0164313B1 (fr) 1984-05-24 1985-05-15 Corps polaire pour un allumeur électrique, son procédé de fabrication et son application

Country Status (7)

Country Link
US (1) US4715280A (fr)
EP (1) EP0164313B1 (fr)
JP (1) JPS612000A (fr)
KR (1) KR850008216A (fr)
AT (1) ATE30959T1 (fr)
DE (1) DE3561027D1 (fr)
ZA (1) ZA852777B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0864844A3 (fr) * 1997-03-11 1999-08-04 Nikko Company Allumeur du type à pont pour charge explosive et procédé de fabricaiton d'un tel allumeur
US6553911B1 (en) * 1997-04-30 2003-04-29 Erico International Corporation Exothermic reactions and methods
WO2003087705A1 (fr) * 2002-04-16 2003-10-23 Nippon Kayaku Kabushiki-Kaisha Generateur de gaz
US6835910B2 (en) 2002-01-25 2004-12-28 Erico International Corporation Welding apparatus and method

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8905747D0 (en) * 1989-03-13 1989-04-26 Secr Defence Pyrotechnic material
US5266132A (en) * 1991-10-08 1993-11-30 The United States Of America As Represented By The United States Department Of Energy Energetic composites
US5912427A (en) * 1993-02-26 1999-06-15 Quantic Industries, Inc. Semiconductor bridge explosive device
US5505799A (en) * 1993-09-19 1996-04-09 Regents Of The University Of California Nanoengineered explosives
US6199484B1 (en) * 1997-01-06 2001-03-13 The Ensign-Bickford Company Voltage-protected semiconductor bridge igniter elements
US6598532B2 (en) * 2001-08-14 2003-07-29 Donald G. Gerard Electric circuit for an electrically dischargeable primer
CN119374430A (zh) * 2023-07-25 2025-01-28 贵州全安密灵科技有限公司 等离子点火件及含有其的电子雷管

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1771334A1 (de) * 1968-05-08 1971-12-16 Dynamit Nobel Ag Zuendhuetchenkoerper fuer elektrische Zuendung
FR2090579A5 (fr) * 1970-04-24 1972-01-14 Dynamit Nobel Ag
FR2284860A1 (fr) * 1974-09-13 1976-04-09 Dynamit Nobel Ag Amorce explosive combinee
DE2551473A1 (de) * 1975-11-15 1977-05-18 Diehl Fa Verbrennbares zuendelement
DE2840738A1 (de) * 1978-08-10 1980-02-21 Inventa Ag Elektrische zuendvorrichtung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL292575A (fr) * 1962-05-10
US3669022A (en) * 1970-08-05 1972-06-13 Iit Res Inst Thin film device
DE2245308C3 (de) * 1972-09-15 1981-05-07 Dynamit Nobel Ag, 5210 Troisdorf Elektrisches Brückenzündmittel
SE431681B (sv) * 1977-04-19 1984-02-20 Bofors Ab Eltenddon
SE427216B (sv) * 1979-09-03 1983-03-14 Bofors Ab Eltenddon, foretredesvis for artilleriammunition
US4409262A (en) * 1982-02-01 1983-10-11 The United States Of America As Represented By The Secretary Of The Navy Fabrication of submicron-wide lines with shadow depositions
SE430723B (sv) * 1982-04-30 1983-12-05 Bofors Ab Forfarande och anordning for att astadkomma en veldefinerad och elektriskt ledande brygga mellan tva polkroppar forfarande och anordning for att astadkomma en veldefinerad och elektriskt ledande brygga mellan tva polkroppar
US4576094A (en) * 1985-08-28 1986-03-18 The United States Of America As Represented By The Secretary Of The Army Fabrication of expandable polystyrene plastic ignition containers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1771334A1 (de) * 1968-05-08 1971-12-16 Dynamit Nobel Ag Zuendhuetchenkoerper fuer elektrische Zuendung
FR2090579A5 (fr) * 1970-04-24 1972-01-14 Dynamit Nobel Ag
FR2284860A1 (fr) * 1974-09-13 1976-04-09 Dynamit Nobel Ag Amorce explosive combinee
DE2551473A1 (de) * 1975-11-15 1977-05-18 Diehl Fa Verbrennbares zuendelement
DE2840738A1 (de) * 1978-08-10 1980-02-21 Inventa Ag Elektrische zuendvorrichtung

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0864844A3 (fr) * 1997-03-11 1999-08-04 Nikko Company Allumeur du type à pont pour charge explosive et procédé de fabricaiton d'un tel allumeur
US6129976A (en) * 1997-03-11 2000-10-10 Nikko Company Exothermic instrument for firing explosive
US6553911B1 (en) * 1997-04-30 2003-04-29 Erico International Corporation Exothermic reactions and methods
US6703578B2 (en) 1997-04-30 2004-03-09 Erico International Corporation Exothermic reactions and methods
US6835910B2 (en) 2002-01-25 2004-12-28 Erico International Corporation Welding apparatus and method
WO2003087705A1 (fr) * 2002-04-16 2003-10-23 Nippon Kayaku Kabushiki-Kaisha Generateur de gaz
CN100347513C (zh) * 2002-04-16 2007-11-07 日本化药株式会社 气体发生器

Also Published As

Publication number Publication date
US4715280A (en) 1987-12-29
JPS612000A (ja) 1986-01-07
DE3561027D1 (en) 1987-12-23
ATE30959T1 (de) 1987-12-15
ZA852777B (en) 1985-11-27
EP0164313B1 (fr) 1987-11-19
KR850008216A (ko) 1985-12-13

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