EP0847972A1 - Retard pyrotechnique, son procédé de fabrication et son utilisation - Google Patents

Retard pyrotechnique, son procédé de fabrication et son utilisation Download PDF

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Publication number
EP0847972A1
EP0847972A1 EP96203536A EP96203536A EP0847972A1 EP 0847972 A1 EP0847972 A1 EP 0847972A1 EP 96203536 A EP96203536 A EP 96203536A EP 96203536 A EP96203536 A EP 96203536A EP 0847972 A1 EP0847972 A1 EP 0847972A1
Authority
EP
European Patent Office
Prior art keywords
delay
delay element
pressed
sleeve
rate
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
EP96203536A
Other languages
German (de)
English (en)
Other versions
EP0847972B1 (fr
Inventor
Markus Tobler
Walter Rauber
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.)
SM Schweizerische Munitionsunternehmung AG
Original Assignee
Schweizerische Eidgenossenschaft Vertreten Durch Die Sm Schweizerische Munitionsunternehmung Der Gruppe fur Ruestungsdienste
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 Schweizerische Eidgenossenschaft Vertreten Durch Die Sm Schweizerische Munitionsunternehmung Der Gruppe fur Ruestungsdienste filed Critical Schweizerische Eidgenossenschaft Vertreten Durch Die Sm Schweizerische Munitionsunternehmung Der Gruppe fur Ruestungsdienste
Priority to EP96203536A priority Critical patent/EP0847972B1/fr
Priority to DE59608681T priority patent/DE59608681D1/de
Priority to AT96203536T priority patent/ATE212610T1/de
Priority to ES96203536T priority patent/ES2170199T3/es
Publication of EP0847972A1 publication Critical patent/EP0847972A1/fr
Application granted granted Critical
Publication of EP0847972B1 publication Critical patent/EP0847972B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
    • C06B21/0033—Shaping the mixture
    • C06B21/0041—Shaping the mixture by compression
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C5/00—Fuses, e.g. fuse cords
    • C06C5/06—Fuse igniting means; Fuse connectors
    • 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
    • F42B3/16—Pyrotechnic delay initiators

Definitions

  • the invention relates to a pyrotechnic delay element, consisting of pressed sentences, which in a metallic sleeve are arranged, and a method for its manufacture and its use.
  • EP-A1-0 304 973 one is particularly suitable for ignition suitable pyrotechnic delay element by means of a firing pin known. This contains in the cheering and delay set toxic heavy metal compounds, which today in manufacturing and in their use because of their emissions and residues are undesirable.
  • This delay element also has the disadvantage that it requires a relatively high ignition energy.
  • the delay times should be predeterminable and reproducible in the range of seconds be.
  • the delay element should in particular also suitable for firing smoke ammunition and only have small dimensions.
  • the above task is solved in that the transitions one between each other between two adjacent sentences toothed and compressed solid phase from parts of the two Build sentences.
  • Black powder is predominantly used in the individual sets, too Flour powder called, used as fuel.
  • the manufacturing process is that in one first step of the firing set in the sleeve is filled in that in a second step a portion of the delay rate is filled in that in a third step the two layers with a press stamp are pressed, that in a fourth step further Portions of the delay set filled into the sleeve be, each portion before filling the next portion is pressed with the ram, and that in a fifth step the last portion of the delay rate with the one filled in below Transfer set is pressed.
  • the predetermination of the burning time of the delay element after Claim 2 is easily realized between 1 to 13 seconds.
  • the burn time is primarily a function of the length of the delay set and thus predeterminable in a simple manner. Thereby the reproducibility is high, which makes the Security of the pyrotechnic element is guaranteed.
  • a lighting set according to claim has proven particularly useful 3 a composition of 99% black powder and 1% binder having.
  • the burning time of the delay set can additionally according to claim 4 can be varied by in a very wide range usable proportion of the fuel black powder, as well of silicon or ferric oxide, the two the latter components act as slag formers.
  • a delay set without black powder according to claim 5 has manganese dioxide-zirconium as fuel; it has Also proven in the delay element according to the invention.
  • the transfer rate is expediently energetically adjusted the delay rate.
  • the energy required to form a Flame beam in the transfer set by adding Zirconium - as a reducing agent for black powder.
  • the transmission rate according to claim 7 has proven itself as a supplement to the delay rate according to claim 5.
  • the increased burning energy is achieved by adding magnesium.
  • composition of the black powder according to claim 8 proved to be beneficial.
  • the pressing method according to claim 10 is preferably carried out with a pressure of approximately 31 kN / cm 2 .
  • the entire delay element is denoted by 1 in FIG. 1. It consists of an elongated, cylindrical sleeve 2 which is filled at one end with the firing kit 3, at the other end with the transfer rate 5.
  • the delay rate 4 fills the average volume of the sleeve 2.
  • toothed transition 34 of the firing set 3 to the delay set 4 and the transition 45 from the delay set 4 to Transfer rate 5 can be seen.
  • a front thread 6 is used for the releasable coupling a fog sentence 7; in a back thread become notorious known detonators (electric or with detonators) coupled.
  • a delay element 1 for example with an inner diameter of 3.5 mm takes place directly in it Sleeve 2.
  • 50 mg of the lighting set 3 dosed into the sleeve.
  • a small subset of the delay rate 4. This can be between 20 and 50 mg vary. Both sets are pressed, which is a typical Teeth 34 caused at the interface of the two sets.
  • This step is made according to the total amount to be dosed Delay set 4 repeated several times until the predetermined amount, or the desired length of the Delay rate 4 is reached.
  • 30 to 100 mg of the transmission set 5 dosed into the sleeve and then pressed. This in turn creates a toothed transition 45 between the delay and transmission rate 4 or 5.
  • Brass sleeves with an inner diameter of 3.5 mm have proven particularly useful.
  • the length of the sleeves varies from 15 to 30 mm depending on the desired delay time or the number of sets to be pressed.
  • Planned stamps as well as stamps with a corrugated pattern are used as press stamps.
  • the pressing is preferably carried out at a pressure of 31 kN / cm 2 ; the holding time of each press stage is 4 to 6 s.
  • a column height which is in each case 70 to 80% of the Inner diameter is.
  • Binder14 Cellulose derivatives and polymers such as polyvinyl pyrrolidone (PVP) were also used and tested. However, it is evident that different binders, different firing times of the retardation set. For a composition of the retardation rate of 43% black powder, 46% Si and 11% Fe 2 O 3 , a burning time of 3.1 s was achieved with 0.5% binder14; with 6% binder14 a burn time of 4.1 s; with 1% PVP 3.0 s and with 1% collodion E21 a time of 2.4 s.
  • PVP polyvinyl pyrrolidone
  • the zirconium used was of commercial quality FA Powder, from DEGUSSA AG; also the iron dioxide and silicon were in commercial grit.
  • the linear relationship enables particularly simple predetermination the burning time of the subject of the invention; she can be extrapolated in the dash-dotted area.
  • the subject of the invention is excellently suitable for lighting of smoke projectors of the type according to EP -B1- 0 322 951 and EP -B1- 0 362 523 and others in particular on battle tanks installed fog-throwing systems.
  • the low environmental impact of the delay element is particularly favorable, so that it also lends itself to practice ammunition.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Materials For Medical Uses (AREA)
  • Spark Plugs (AREA)
  • Press Drives And Press Lines (AREA)
EP96203536A 1996-12-13 1996-12-13 Retard pyrotechnique, son procédé de fabrication et son utilisation Expired - Lifetime EP0847972B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP96203536A EP0847972B1 (fr) 1996-12-13 1996-12-13 Retard pyrotechnique, son procédé de fabrication et son utilisation
DE59608681T DE59608681D1 (de) 1996-12-13 1996-12-13 Pyrotechnisches Verzögerungselement, Verfahren zu seiner Herstellung sowie dessen Verwendung
AT96203536T ATE212610T1 (de) 1996-12-13 1996-12-13 Pyrotechnisches verzögerungselement, verfahren zu seiner herstellung sowie dessen verwendung
ES96203536T ES2170199T3 (es) 1996-12-13 1996-12-13 Retardo pirotecnico, procedimiento para su fabricacion asi como su uso.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96203536A EP0847972B1 (fr) 1996-12-13 1996-12-13 Retard pyrotechnique, son procédé de fabrication et son utilisation

Publications (2)

Publication Number Publication Date
EP0847972A1 true EP0847972A1 (fr) 1998-06-17
EP0847972B1 EP0847972B1 (fr) 2002-01-30

Family

ID=8224698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96203536A Expired - Lifetime EP0847972B1 (fr) 1996-12-13 1996-12-13 Retard pyrotechnique, son procédé de fabrication et son utilisation

Country Status (4)

Country Link
EP (1) EP0847972B1 (fr)
AT (1) ATE212610T1 (fr)
DE (1) DE59608681D1 (fr)
ES (1) ES2170199T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1253397A3 (fr) * 2001-04-23 2003-01-02 TRW Airbag Systems GmbH & Co. KG Méthode pour la fabrication d'un allumeur pyrotechnique
WO2016075091A1 (fr) * 2014-11-10 2016-05-19 Dynitec Gmbh Élément retardateur pyrotechnique
DE102015014821A1 (de) 2015-11-18 2017-05-18 Rheinmetall Waffe Munition Gmbh REACh konformer pyrotechnischer Verzögerungs- und Anzündsatz mit variabel einstellbaren Leistungsparametern

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2373799A (en) * 1942-11-04 1945-04-17 Frank C Wilson Bomb loading press
FR931695A (fr) * 1945-08-01 1948-03-01 Ici Ltd Compositions d'amorce à retardement
FR1128524A (fr) * 1954-04-23 1957-01-07 Ici Ltd Compositions fusantes à retard et objets en comportant
US3110638A (en) * 1958-07-09 1963-11-12 Maurice F Murphy Controlled sensitivity igniter composition and method of producing same
FR1400588A (fr) * 1964-04-14 1965-05-28 Elément de retard pour détonateurs électriques
FR2015074A1 (fr) * 1968-08-05 1970-04-24 Dynamit Nobel Ag
EP0036810A1 (fr) * 1980-03-21 1981-09-30 ETAT-FRANCAIS représenté par le Délégué Général pour l' Armement Procédé pour le chargement d'un module à retard pyrotechnique
EP0304973A1 (fr) 1987-07-29 1989-03-01 Schweizerische Eidgenossenschaft vertreten durch die Eidg. Munitionsfabrik Thun der Gruppe für Rüstungsdienste Elément à retard pyrotechnique pour fusées retardatrices et son utilisation
US4858529A (en) * 1988-07-01 1989-08-22 The United States Of America As Represented By The Department Of Energy Spark-safe low-voltage detonator
EP0491530A2 (fr) * 1990-12-16 1992-06-24 Israel Military Industries Ltd. Détonateur à retard
GB2253207A (en) * 1991-02-20 1992-09-02 Ici Plc Pyrotechnic delay composition
EP0322951B1 (fr) 1987-12-24 1993-03-03 Schweizerische Eidgenossenschaft vertreten durch die Eidg. Munitionsfabrik Thun der Gruppe für Rüstungsdienste Dispositif pour la production rapide d'un brouillard artificiel et procédé de production des obus à brouillard
EP0362523B1 (fr) 1988-08-19 1993-10-20 NICO-PYROTECHNIK Hanns-Jürgen Diederichs GmbH & Co. KG Munition comprenant un lanceur et un corps actif

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2373799A (en) * 1942-11-04 1945-04-17 Frank C Wilson Bomb loading press
FR931695A (fr) * 1945-08-01 1948-03-01 Ici Ltd Compositions d'amorce à retardement
FR1128524A (fr) * 1954-04-23 1957-01-07 Ici Ltd Compositions fusantes à retard et objets en comportant
US3110638A (en) * 1958-07-09 1963-11-12 Maurice F Murphy Controlled sensitivity igniter composition and method of producing same
FR1400588A (fr) * 1964-04-14 1965-05-28 Elément de retard pour détonateurs électriques
FR2015074A1 (fr) * 1968-08-05 1970-04-24 Dynamit Nobel Ag
EP0036810A1 (fr) * 1980-03-21 1981-09-30 ETAT-FRANCAIS représenté par le Délégué Général pour l' Armement Procédé pour le chargement d'un module à retard pyrotechnique
EP0304973A1 (fr) 1987-07-29 1989-03-01 Schweizerische Eidgenossenschaft vertreten durch die Eidg. Munitionsfabrik Thun der Gruppe für Rüstungsdienste Elément à retard pyrotechnique pour fusées retardatrices et son utilisation
EP0322951B1 (fr) 1987-12-24 1993-03-03 Schweizerische Eidgenossenschaft vertreten durch die Eidg. Munitionsfabrik Thun der Gruppe für Rüstungsdienste Dispositif pour la production rapide d'un brouillard artificiel et procédé de production des obus à brouillard
US4858529A (en) * 1988-07-01 1989-08-22 The United States Of America As Represented By The Department Of Energy Spark-safe low-voltage detonator
EP0362523B1 (fr) 1988-08-19 1993-10-20 NICO-PYROTECHNIK Hanns-Jürgen Diederichs GmbH & Co. KG Munition comprenant un lanceur et un corps actif
EP0491530A2 (fr) * 1990-12-16 1992-06-24 Israel Military Industries Ltd. Détonateur à retard
GB2253207A (en) * 1991-02-20 1992-09-02 Ici Plc Pyrotechnic delay composition

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1253397A3 (fr) * 2001-04-23 2003-01-02 TRW Airbag Systems GmbH & Co. KG Méthode pour la fabrication d'un allumeur pyrotechnique
US6761118B2 (en) 2001-04-23 2004-07-13 Trw Airbag Systems Gmbh & Co. Kg Method of producing an igniter
WO2016075091A1 (fr) * 2014-11-10 2016-05-19 Dynitec Gmbh Élément retardateur pyrotechnique
DE102015014821A1 (de) 2015-11-18 2017-05-18 Rheinmetall Waffe Munition Gmbh REACh konformer pyrotechnischer Verzögerungs- und Anzündsatz mit variabel einstellbaren Leistungsparametern
WO2017084916A2 (fr) 2015-11-18 2017-05-26 Rheinmetall Waffe Munition Gmbh Composition pyrotechnique de retardement et d'allumage conforme au règlement reach et dont les paramètres de performance peuvent être modulables
US10889530B2 (en) 2015-11-18 2021-01-12 Rheinmetall Waffe Munition Gmbh Reach-compliant pyrotechnic delayed-action composition and primer charge having variably settable performance parameters

Also Published As

Publication number Publication date
DE59608681D1 (de) 2002-03-14
ATE212610T1 (de) 2002-02-15
EP0847972B1 (fr) 2002-01-30
ES2170199T3 (es) 2002-08-01

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