EP0605030A1 - Compression molded, noble metal-containing explosive and its use - Google Patents
Compression molded, noble metal-containing explosive and its use Download PDFInfo
- Publication number
- EP0605030A1 EP0605030A1 EP93203389A EP93203389A EP0605030A1 EP 0605030 A1 EP0605030 A1 EP 0605030A1 EP 93203389 A EP93203389 A EP 93203389A EP 93203389 A EP93203389 A EP 93203389A EP 0605030 A1 EP0605030 A1 EP 0605030A1
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- explosive
- noble metal
- platelets
- binder
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- 239000002360 explosive Substances 0.000 title claims abstract description 67
- 229910000510 noble metal Inorganic materials 0.000 title claims description 8
- 230000006835 compression Effects 0.000 title 1
- 238000007906 compression Methods 0.000 title 1
- 239000011230 binding agent Substances 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 17
- 229910052709 silver Inorganic materials 0.000 claims description 16
- 239000004332 silver Substances 0.000 claims description 12
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 6
- 229910052737 gold Inorganic materials 0.000 claims description 6
- 239000010931 gold Substances 0.000 claims description 6
- 229910001316 Ag alloy Inorganic materials 0.000 claims description 2
- 229910001020 Au alloy Inorganic materials 0.000 claims 1
- 239000003353 gold alloy Substances 0.000 claims 1
- 239000008187 granular material Substances 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract description 2
- 239000008240 homogeneous mixture Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 description 5
- 239000000028 HMX Substances 0.000 description 4
- UZGLIIJVICEWHF-UHFFFAOYSA-N octogen Chemical compound [O-][N+](=O)N1CN([N+]([O-])=O)CN([N+]([O-])=O)CN([N+]([O-])=O)C1 UZGLIIJVICEWHF-UHFFFAOYSA-N 0.000 description 4
- 239000010970 precious metal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000002411 thermogravimetry Methods 0.000 description 3
- 241000219739 Lens Species 0.000 description 2
- 240000004322 Lens culinaris Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 238000000113 differential scanning calorimetry Methods 0.000 description 2
- 229940075057 doral Drugs 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- MECHNRXZTMCUDQ-RKHKHRCZSA-N vitamin D2 Chemical compound C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@H](C)/C=C/[C@H](C)C(C)C)=C\C=C1\C[C@@H](O)CCC1=C MECHNRXZTMCUDQ-RKHKHRCZSA-N 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010011376 Crepitations Diseases 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229920000914 Metallic fiber Polymers 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Images
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
- C06B21/0083—Treatment of solid structures, e.g. for coating or impregnating with a modifier
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
- C06B45/18—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S149/00—Explosive and thermic compositions or charges
- Y10S149/11—Particle size of a component
- Y10S149/114—Inorganic fuel
Definitions
- the present invention relates to a metal-containing explosive body formed by pressing.
- Metallic fibers are used for the mechanical reinforcement of explosive charges (US Pat. No. 3,960,049), which likewise achieves a certain conductivity.
- the speed of detonation may only be slightly lower; Likewise, the function of the explosives must be guaranteed in the military temperature range from -35 ° C to + 63 ° C.
- the present object is achieved in that an electrically conductive structure consisting of ductile noble metal platelets is provided in the explosive, which platelets form galvanically conductive bridges around the explosive grains with a conductivity of at least 5 S m / mm 2.
- An explosive according to the invention permits novel designs of electrically fired ammunition bodies, in which no or only slightly functional electrical connection lines are necessary.
- the handling security of the systems increases due to the metal coating of the explosive grains.
- gold according to claim 3
- gold can be used, albeit with a higher economic outlay.
- Platelets according to claim 5 are preferred, which are also commercially available.
- the method according to claim 8 is characterized by its particular simplicity and can be very easily integrated into existing manufacturing processes.
- the use according to claim 9 ensures a flawless, distortion-free and delay-free transmission of the ignition signal without the Joule heat noticeably heating the explosive.
- an explosive body according to the invention has only a slight reduction in performance compared to non-conductive explosives, this can be combined, in particular due to economic considerations, with conventional further high-performance explosive charges.
- the subject of the invention is not limited to military applications; it can be combined in simple and very compact combinations with electrical and electronic circuits, particularly in safety technology.
- the conductivity which is 103 better than that of graphite-containing explosives, ensures a high level of functional reliability of such constructions.
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Materials For Medical Uses (AREA)
- Conductive Materials (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Adornments (AREA)
- Laminated Bodies (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
Die vorliegende Erfindung bezieht sich auf einen metallhaltigen, durch Pressen geformten Sprengstoffkörper.The present invention relates to a metal-containing explosive body formed by pressing.
Es ist bekannt (CH -A5- 462 688), Ammoniumnitrat-Sprengstoff mit Mineralöl und Metallpulver zu mischen, mit dem Ziel, dessen Empfindlichkeit gegenüber elektrostatischen Aufladungen zu reduzieren. Derartige Sprengstoffe finden hauptsächlich im Tiefbau Anwendung und werden meist in Bohrlöcher eingefüllt.It is known (CH -A5- 462 688) to mix ammonium nitrate explosive with mineral oil and metal powder with the aim of reducing its sensitivity to electrostatic charges. Such explosives are mainly used in civil engineering and are usually filled into boreholes.
Zur mechanischen Verstärkung von Sprengladungen werden metallische Fasern verwendet (US-PS 3,960,049), wodurch ebenfalls eine gewisse Leitfähigkeit erzielt wird.Metallic fibers are used for the mechanical reinforcement of explosive charges (US Pat. No. 3,960,049), which likewise achieves a certain conductivity.
Bekannt (FR -A- 2 003 626) ist ausserdem, Sprengladungen aus gepressten Nitrocellulosefasern mittels durchgezogener elektrischer Leitungen zur Erhitzung und damit zur Initiierung zu bringen.It is also known (FR-A- 2 003 626) to cause explosive charges made of pressed nitrocellulose fibers to be heated and thus initiated by means of solid electrical lines.
In sämtlichen Fällen wird nur eine relativ geringe spezifische Leitfähigkeit und keine eigentliche galvanische Leitung erzielt.In all cases, only a relatively low specific conductivity and no actual galvanic line is achieved.
Es ist daher Aufgabe der Erfindung, einen elektrisch gut leitenden Sprengstoff zu schaffen, der eine hohe Leistung und Handhabungssicherheit aufweist.It is therefore an object of the invention to provide an explosive which is a good conductor of electricity and which has high performance and handling safety.
Gegenüber anderen bekannten Hochleistungs-Sprengstoffen darf die Detonationsgeschwindigkeit nur geringfügig niedriger sein; ebenso muss die Funktion des Sprengstoffes im militärisch anwendbaren Temperaturbereich von -35°C bis +63°C gewährleistet sein.Compared to other known high-performance explosives, the speed of detonation may only be slightly lower; Likewise, the function of the explosives must be guaranteed in the military temperature range from -35 ° C to + 63 ° C.
Im weiteren soll eine bevorzugte Verwendung des Sprengstoffes aufgezeigt werden.Furthermore, a preferred use of the explosive is to be shown.
Die vorliegende Aufgabe wird dadurch gelöst, dass im Sprengstoff ein elektrisch leitendes Gefüge bestehend aus duktilen Edelmetallplättchen vorgesehen ist, welche Plättchen um die Sprengstoffkörner galvanisch leitende Brücken bilden mit einer Leitfähigkeit von wenigstens 5 S m/mm².The present object is achieved in that an electrically conductive structure consisting of ductile noble metal platelets is provided in the explosive, which platelets form galvanically conductive bridges around the explosive grains with a conductivity of at least 5 S m /
Die im Patentanspruch genannten Edelmetallplättchen sind handelsüblich und werden in der Metallurgie als "Flitter" bezeichnet.The noble metal platelets mentioned in the patent claim are commercially available and are referred to in metallurgy as "tinsel".
Im ungepressten Zustand ist eine Mischung aus Sprengstoffkörnern und "Flitter" nicht galvanisch leitend. Überraschenderweise werden jedoch die Sprengstoffkörner während des Pressvorganges plattiert und bilden dadurch auch bei einem geringen Anteil an Edelmetall ein zuverlässig wirkendes elektrisch leitendes Gefüge.In the unpressed state, a mixture of explosive grains and "tinsel" is not electrically conductive. Surprisingly, however, the explosive grains are plated during the pressing process and thereby form a reliably acting electrically conductive structure even with a small proportion of precious metal.
Ein erfindungsgemässer Sprengstoff erlaubt neuartige Konstruktionen von elektrisch gezündeten Munitionskörpern, in welchen keine oder nur wenig funktionsstörende elektrische Verbindungsleitungen notwendig sind. Zudem steigt die Handhabungssicherheit der Systeme aufgrund der Metallumhüllung der Sprengstoffkörner.An explosive according to the invention permits novel designs of electrically fired ammunition bodies, in which no or only slightly functional electrical connection lines are necessary. In addition, the handling security of the systems increases due to the metal coating of the explosive grains.
Die Angaben nach Anspruch 2 erlauben die Auswahl besonders geeigneter Plättchen.The details of
Alternativ lässt sich, wenn auch mit höherem wirtschaftlichen Aufwand, Gold, gemäss Anspruch 3, einsetzen.Alternatively, gold, according to
Die in den Ansprüchen 2 und 3 angegebenen Härte-Werte sind nach BRINELL gemessen und gewährleisten ein ausreichendes duktiles Verhalten an handelsüblichen Sprengstoffkörnern; sie werden damit einwandfrei beim Verpressen plattiert.The hardness values specified in
Beste Ergebnisse wurden mit Plättchen gleicher Grösse, nach Anspruch 4, erzielt.Best results were achieved with platelets of the same size, according to claim 4.
Bevorzugt sind Plättchen gemäss Anspruch 5, welche zudem handelsüblich sind.Platelets according to claim 5 are preferred, which are also commercially available.
Im Sinne einer Auswahl gelten die in Anspruch 6 genannten Abmessungen.In the sense of a selection, the dimensions mentioned in claim 6 apply.
Überraschenderweise wird die gewünschte Leitfähigkeit bereits durch die in Anspruch 7 aufgeführten geringen Volumenanteile erzielt.Surprisingly, the desired conductivity is already achieved by the small volume fractions listed in claim 7.
Das Verfahren nach Anspruch 8 zeichnet sich durch seine besondere Einfachheit aus und lässt sich sehr leicht in bereits bestehende Fabrikationsabläufe integrieren.The method according to claim 8 is characterized by its particular simplicity and can be very easily integrated into existing manufacturing processes.
Die Verwendung nach Anspruch 9 gewährleistet eine einwandfreie, verzerrungs- und verzögerungsfreie Zündsignalübertragung, ohne dass die Joul'sche Wärme den Sprengstoff merklich erhitzen würde.The use according to claim 9 ensures a flawless, distortion-free and delay-free transmission of the ignition signal without the Joule heat noticeably heating the explosive.
Obwohl ein erfindungsgemässer Sprengstoffkörper eine nur geringfügige Leistungsreduktion gegenüber nicht leitenden Sprengstoffen aufweist, kann dieser, insbesondere aufgrund wirtschaftlicher Überlegungen, mit konventionellen weiteren Hochleistungssprengladungen gemäss Anspruch 10 kombiniert werden.Although an explosive body according to the invention has only a slight reduction in performance compared to non-conductive explosives, this can be combined, in particular due to economic considerations, with conventional further high-performance explosive charges.
Nachfolgend wird anhand von Zeichnungen der Erfindungsgegenstand näher erläutert.The subject matter of the invention is explained in more detail below with the aid of drawings.
Es zeigen:
- Fig. 1
- eine schematische Darstellung des leitenden Gefüges in einem galvanisch leitenden Sprengstoffkörper,
- Fig. 2
- eine Tandem-Hohlladung mit der Zündsignalübertragung dienenden galvanisch leitenden Sprengstoffkörpern.
- Fig. 1
- 1 shows a schematic representation of the conductive structure in a galvanically conductive explosive body,
- Fig. 2
- a tandem shaped charge with the galvanically conductive explosive bodies serving to transmit the ignition signal.
Die Darstellung Fig. 1 ist eine aus einer Rastermikroskopaufnahme umgesetzte Zeichnung. Mit 1 sind Edelmetallplättchen bezeichnet, welche Sprengstoffkörner 2 plattieren. Die zwischen den einzelnen Sprengstoffkörnern 2 befindlichen Hohlräume sind partiell mit Bindemittel 3 ausgefüllt.
- 1. Beispielsweise Herstellung eines galvanisch leitenden Sprengstoffkörpers
- 1a. Mischungskomponenten:
Handelsüblicher Sprengstoff (Octogen, Klasse C; Firma DYNO, Norwegen) wird mit handelsüblichen Silberplättchen (Silber-Flakes; Firma DORAL, Vétroz, Schweiz) und handelsüblichem Bindemittel (Binder Octastit VIII L; Firma DYNO, Norwegen) zu leitfähigem Sprengstoff verarbeitet. - 1b. Mischungsverhältnisse:
86,7 Gew.-% Sprengstoffkörner mit einer Kristalldichte von 1,903 g/cm³ werden mit 10,7 Gew.-% Silberplättchen mit einem Durchmesser von 40 µm und einer mittleren Dicke von 0,4 µm und mit 2,6 Gew.-% Bindemittel verwendet. - 1c. Verfahrensschritte:
In einem ersten Schritt werden die Silberplättchen mit dem Binder in einem Mischer durch einen üblichen Rührer miteinander homogen vermischt. In einem zweiten Verfahrensschritt wird das mit Silberplättchen beladene Bindemittel in einem Trommelmischer auf die Sprengstoffkörner aufgebracht und getrocknet. In diesem Zustand ist die Mischung nicht leitfähig.
Anschliessend wird der Sprengstoff in einer bekannten Pressform (vgl. EP -A1- 0 296 099) in seine Rohform gepresst; jetzt ist der derart erzeugte Körper galvanisch leitend.
- 1a. Mischungskomponenten:
- 2. Messergebnisse
Zylindrische Sprengstoffpresskörper von 21 mm Durchmesser und 15 mm Länge wurden untersucht. Dabei wurde festgestellt, dass der als relevant zu betrachtende Durchgangswiderstand bei Kontaktflächen von 5 mm² und einem Kontaktabstand von 10 mm unterhalb von 3 Ohm liegt.
Die Detonationsgeschwindigkeit übersteigt 8370 m/s.
In bezug auf die Druckfestigkeit der Presskörper konnten keine wesentlichen Unterschiede zu nicht leitenden Körpern festgestellt werden. - 3. Empfindlichkeit
Reibempfindlichkeit (gemessen mit Apparat PETERS): Bei 8 kg Belastung wurde keine Wirkung erzielt; bei 10,8 kg wurde ein Knistern festgestellt; bei 12,0 kg Belastung entstanden "Anbrenner".
Funkenentladungsempfindlichkeit (gemessen mit Apparatur GRD):
Bei 18 mJ Funkenenergie war keine Wirkung ersichtlich; bei 56 mJ wurden sehr schwache "Anbrenner" feststellbar. Schlagempfindlichkeit (Fallhammerprüfung nach KOENEN und IDE):
Bei 25 cm Fallhöhe war keine Wirkung vorhanden; bei 30 cm Fallhöhe wurden "Anbrenner" feststellbar. - 4. Thermische Stabilität
DSC/TG-Messungen (Differential Scanning Calorimetry/Thermo Gravimetry):
Die DSC/TG-Kurven decken sich mit denjenigen von nicht leitendem Sprengstoff, dh. der Zusatz von Silber beeinflusst die thermische Zersetzung nicht. - 5. Edelmetallanteil im Sprengstoff
Ein für technische Anwendung geeigneter spezifischer Widerstand von 3 x 10⁻⁴ Ωcm wurde miteinem Anteil von 2% Silber am Gesamtvolumen erzielt.Mit 1% Volumenanteil Silber resultierte ein spezifischer Widerstand von 10x 10⁻⁴ Ωcm;mit 3 Volumen-% Silber wurde, ein solcher von 0,18 x 10⁻⁴ Ωcm erreicht.
- 1. For example, production of a galvanically conductive explosive device
- 1a. Mix components:
Commercial explosives (Octogen, class C; DYNO, Norway) are processed with commercially available silver flakes (silver flakes; DORAL, Vétroz, Switzerland) and commercial binders (Binder Octastit VIII L; DYNO, Norway) to form conductive explosives. - 1b. Mixing ratios:
86.7% by weight of explosive grains with a crystal density of 1.903 g / cm³ are mixed with 10.7% by weight of silver plates with a diameter of 40 µm and an average thickness of 0.4 µm and with 2.6% by weight Binder used. - 1c. Process steps:
In a first step, the silver plates with the binder are homogeneously mixed with one another in a mixer using a conventional stirrer. In a second process step, the binder loaded with silver flakes is applied to the explosive grains in a drum mixer and dried. The mixture is not conductive in this state.
The explosive is then pressed into its raw form in a known press mold (cf. EP-A1-0 296 099); now the body created in this way is electrically conductive.
- 1a. Mix components:
- 2. Measurement results
Cylindrical explosive compacts with a diameter of 21 mm and a length of 15 mm were examined. It was found that the volume resistance to be considered relevant for contact areas of 5 mm² and a contact distance of 10 mm is below 3 ohms.
The detonation speed exceeds 8370 m / s.
With regard to the compressive strength of the pressed bodies, no significant differences to non-conductive bodies could be determined. - 3. Sensitivity
Sensitivity to friction (measured with PETERS apparatus): No effect was achieved with a load of 8 kg; crackling was noted at 10.8 kg; at 12.0 kg load "burners" were created.
Spark discharge sensitivity (measured with GRD equipment):
No effect was evident at 18 mJ spark energy; very weak "burners" were found at 56 mJ. Impact sensitivity (drop hammer test according to KOENEN and IDE):
At a height of 25 cm there was no effect; "Burners" were found at a fall height of 30 cm. - 4. Thermal stability
DSC / TG measurements (Differential Scanning Calorimetry / Thermo Gravimetry):
The DSC / TG curves coincide with those of non-conductive explosives, ie. the addition of silver does not affect the thermal decomposition. - 5. Precious metal content in the explosives
A specific resistance of 3 x 10⁻⁴ Ωcm suitable for technical applications was achieved with a share of 2% silver in the total volume. With 1% by volume silver, a specific resistance of 10 x 10⁻⁴ Ωcm resulted; with 3% by volume of silver, one of 0.18 x 10⁻⁴ Ωcm was achieved.
Ähnliche Verhältnisse gelten für andere Edelmetalle.
- 5a. Gold-Plättchen im Sprengstoff
Eine alternative Ausführung mit im Handel erhältlichen Goldplättchen (Gold-Flakes; Firma DEMETRON, Hanau, Deutschland), in handelsüblichem Sprengstoff (Octogen C, Firma DYNO, Norwegen) und einem entsprechenden Bindemittel (Octastit VIII L), wurde untersucht.
In 80,2 Gew.-% Sprengstoff, mit einer Kristalldichte von 1,903 g/cm³ wurden 17,4 Gew.-% Goldplättchen, mit einem mittleren Durchmesser von 7,8 µm, bei einer mittleren Dicke von 0,4 µm,mit 2,4 Gew.-% Binder vermengt.
Der in analoger Weise hergestellte Sprengstoffkörper wies einen spezifischen Widerstand auf, der bis zu 25 % höher war als im Ausführungsbeispiel mit Silber. Demzufolge, wurde aus praktischen und wirtschaftlichen Gründen diese Variante nicht weiterverfolgt.
- 5a. Gold tokens in the explosives
An alternative version with commercially available gold flakes (gold flakes; DEMETRON, Hanau, Germany), in commercially available explosives (Octogen C, DYNO, Norway) and a corresponding binder (Octastit VIII L) was investigated.
In 80.2% by weight of explosive, with a crystal density of 1.903 g / cm³, 17.4% by weight of gold platelets, with an average diameter of 7.8 µm, with an average thickness of 0.4 µm, were mixed with 2 , 4 wt .-% binder mixed.
The explosive body produced in an analogous manner had a specific resistance which was up to 25% higher than in the exemplary embodiment with silver. As a result, this variant was not pursued for practical and economic reasons.
Noch weniger bewährt haben sich relativ harte Legierungen wie beispielsweise Silber/Kupfer-Legierungen mit 2 Gew.-% Kupfer oder generell unedle Metalle.
- 6. Anwendungsbeispiel
In Fig. 2 ist eine Tandem-Hohlladung dargestellt, welche galvanisch leitende Sprengstoffkörper verwendet, um den Hohlladungsstrahl störende elektrische Verbindungsleitungen zu eliminieren. Damit konnte gleichzeitig der konstruktive Aufbau gegenüber dem Bekannten vereinfacht werden:Ein Gehäuse 10 ist in an sich bekannter Weise partiell durch ein Teil 10' einer Doppelhaube gebildet. Im Innern befindet sich frontseitig ein als Kalotte ausgebildetes, gegenüber dem äusseren Teil 10' der Doppelhaube durch einen Luftspalt isoliertes,weiteres Teil 11 der Doppelhaube. Die Doppelhaube dient in bekannter Weise einer Aufschlagkontaktierung, d.h. der Initiierung des Zündsignals.
Eine frontseitige Auskleidung ist auf einem elektrisch leitenden Sprengstoffkörper 13, eine Frontladung, formschlüssig aufgesetzt.Gegenüber dem Gehäuse 10ist der Sprengstoffkörper 13 durch eine Isolations- und Zentrierbüchse 16 beabstandet. Rückseitig befindet sicham Sprengstoffkörper 13ein erster Zünder 14, welcher mit einerVorladung 15 versehen ist und ineiner Isolationsscheibe 17 zentral gehalten ist.
Eine Dämmbüchse 18, aus Kunststoff, dient der Schockisolation und ist im Raum unterhalb desSprengstoffkörpers 13, in an sich bekannter Weise vorgesehen.Über eine Verbindungsleitung 19 ist ein zweites inneres,kalottenförmiges Teil 20 einer weiteren, zur ersten parallel geschalteten Doppelhaubemit einem Verbindungsflansch 21 zentriert. Eine heckseitige Auskleidung 22 liegt auf einer Hauptladung 23; amKegelstumpf der Auskleidung 22 ist ein weiterer elektrisch leitender Sprengstoffkörper 24 aufgesetzt, der durch einen hier nicht dargestellten elektrischen Kontakt mit einer ineiner inerten Linse 25 zentrierten Verstärkungsladung 27 (Booster) galvanisch verbunden ist. Eine zusätzliche Heckladung 26 umschliesst die inerteLinse 25 in ihrem Endbereich.
Ineinem Leitwerkflansch 29 wirdein üblicher Zünder 28 mit Zündgenerator eingesetzt und durch ein hier nicht dargestelltes Leitwerk einsatzfähig.
- 6. Application example
2 shows a tandem shaped charge which uses galvanically conductive explosive bodies in order to eliminate electrical connecting lines which disrupt the shaped charge beam. At the same time, the structural design could be simplified compared to the known: Ahousing 10 is partially formed in a manner known per se by a part 10 'of a double hood. On the inside there is afurther part 11 of the double hood, which is designed as a spherical cap and is insulated from the outer part 10 'of the double hood by an air gap. The double hood is used in a known manner to make contact, ie to initiate the ignition signal.
A front lining is positively placed on an electrically conductiveexplosive body 13, a front load. Compared to thehousing 10, theexplosive body 13 is spaced apart by an insulation and centeringsleeve 16. On the back of theexplosive body 13 there is afirst detonator 14, which is provided with a precharge 15 and is held centrally in aninsulation disk 17.
An insulatingsleeve 18, made of plastic, is used for shock insulation and is provided in the space below theexplosive body 13 in a manner known per se. A second inner, dome-shapedpart 20 of a further double hood connected in parallel to the first with a connectingflange 21 is centered via a connectingline 19. Arear lining 22 lies on amain load 23; A further electrically conductiveexplosive body 24 is placed on the truncated cone of thelining 22 and is electrically connected to a booster charge 27 (booster) centered in aninert lens 25 by an electrical contact (not shown here). An additionalrear load 26 encloses theinert lens 25 in its end region.
Aconventional igniter 28 with an ignition generator is used in anempennage flange 29 and can be used by an empennage not shown here.
Der konstruktive Aufbau sowie die hier verwendeten Komponenten sind als solche bekannt; durch den Einsatz galvanisch leitender Sprengstoffkörper ist der Munitionskörper leistungsfähiger als vergleichsweise Konstruktionen, da keine störenden Metallteile bzw. Verbindungsleitungen die Hohlladungsstrahlen in ihren sensiblen Bereichen beeinflussen.The structural design and the components used here are known as such; The use of galvanically conductive explosive bodies means that the ammunition body is more powerful than comparable constructions, since no disruptive metal parts or connecting lines influence the shaped charge jets in their sensitive areas.
Selbstverständlich ist der Erfindungsgegenstand nicht auf militärische Anwendungen beschränkt; er kann insbesondere in der Sicherheitstechnik zu einfachen und sehr kompakten Kombinationen mit elektrischen und elektronischen Schaltungen kombiniert werden. Die gegenüber graphithaltigen Sprengstoffen um den Faktor 10³ bessere Leitfähigkeit gewährleistet eine hohe Funktionssicherheit derartiger Konstruktionen.Of course, the subject of the invention is not limited to military applications; it can be combined in simple and very compact combinations with electrical and electronic circuits, particularly in safety technology. The conductivity, which is 10³ better than that of graphite-containing explosives, ensures a high level of functional reliability of such constructions.
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH3955/92 | 1992-12-28 | ||
CH3955/92A CH685343A5 (en) | 1992-12-28 | 1992-12-28 | Metal-containing, shaped by pressing explosive body and those containing ammunition. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0605030A1 true EP0605030A1 (en) | 1994-07-06 |
EP0605030B1 EP0605030B1 (en) | 1996-03-13 |
Family
ID=4267066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93203389A Expired - Lifetime EP0605030B1 (en) | 1992-12-28 | 1993-12-03 | Compression molded, noble metal-containing explosive and its use |
Country Status (8)
Country | Link |
---|---|
US (1) | US5447104A (en) |
EP (1) | EP0605030B1 (en) |
AT (1) | ATE135339T1 (en) |
CH (1) | CH685343A5 (en) |
DE (1) | DE59301895D1 (en) |
ES (1) | ES2085714T3 (en) |
IL (1) | IL107975A (en) |
NO (1) | NO302088B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7513198B2 (en) * | 2003-06-12 | 2009-04-07 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence | Super compressed detonation method and device to effect such detonation |
US10858297B1 (en) | 2014-07-09 | 2020-12-08 | The United States Of America As Represented By The Secretary Of The Navy | Metal binders for insensitive munitions |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1078918B (en) * | 1959-01-27 | 1960-03-31 | Oerlikon Buehrle Ag | Phlegmatized explosive (Hexal) and process for its production |
DE1105784B (en) * | 1960-02-06 | 1961-04-27 | Deutsch Franz Forsch Inst | Process for the production of conductive initial explosives for electrical igniters |
GB973597A (en) * | 1961-10-24 | 1964-10-28 | Beckman Instruments Inc | Electrical detonator |
FR2031677A5 (en) * | 1969-02-04 | 1970-11-20 | France Etat | Explosive mixtures contg metals prepn |
DE2053008A1 (en) * | 1970-10-29 | 1972-05-04 | Warninck, Heinz, 2055 Aumuhle | Electric ignition of fuels |
US3713385A (en) * | 1970-01-30 | 1973-01-30 | Mini Of Technology | Electroexplosive devices |
CH643804A5 (en) * | 1980-07-24 | 1984-06-29 | Oerlikon Buehrle Ag | Explosive and process for its manufacture |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2647047A (en) * | 1950-03-06 | 1953-07-28 | Warren B Richardson | Explosive composition |
US4187129A (en) * | 1962-05-14 | 1980-02-05 | Aerojet-General Corporation | Gelled mechanically stable high energy fuel composition containing metal platelets |
GB1451441A (en) * | 1965-06-11 | 1976-10-06 | Secr Defence | Explosive compositions |
JPS519785A (en) * | 1974-07-08 | 1976-01-26 | Ajinomoto Kk | Hatsukohonyoru pirubinsanno seizoho |
US4215084A (en) * | 1978-05-03 | 1980-07-29 | The Battelle Development Corporation | Method and apparatus for producing flake particles |
US5388518A (en) * | 1988-11-10 | 1995-02-14 | Composite Materials Technology, Inc. | Propellant formulation and process |
US5084218A (en) * | 1990-05-24 | 1992-01-28 | Trw Vehicle Safety Systems Inc. | Spheronizing process |
-
1992
- 1992-12-28 CH CH3955/92A patent/CH685343A5/en not_active IP Right Cessation
-
1993
- 1993-10-26 US US08/143,444 patent/US5447104A/en not_active Expired - Fee Related
- 1993-12-03 DE DE59301895T patent/DE59301895D1/en not_active Expired - Fee Related
- 1993-12-03 AT AT93203389T patent/ATE135339T1/en not_active IP Right Cessation
- 1993-12-03 EP EP93203389A patent/EP0605030B1/en not_active Expired - Lifetime
- 1993-12-03 ES ES93203389T patent/ES2085714T3/en not_active Expired - Lifetime
- 1993-12-10 IL IL10797593A patent/IL107975A/en active IP Right Grant
- 1993-12-27 NO NO934825A patent/NO302088B1/en not_active IP Right Cessation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1078918B (en) * | 1959-01-27 | 1960-03-31 | Oerlikon Buehrle Ag | Phlegmatized explosive (Hexal) and process for its production |
DE1105784B (en) * | 1960-02-06 | 1961-04-27 | Deutsch Franz Forsch Inst | Process for the production of conductive initial explosives for electrical igniters |
GB973597A (en) * | 1961-10-24 | 1964-10-28 | Beckman Instruments Inc | Electrical detonator |
FR2031677A5 (en) * | 1969-02-04 | 1970-11-20 | France Etat | Explosive mixtures contg metals prepn |
US3713385A (en) * | 1970-01-30 | 1973-01-30 | Mini Of Technology | Electroexplosive devices |
DE2053008A1 (en) * | 1970-10-29 | 1972-05-04 | Warninck, Heinz, 2055 Aumuhle | Electric ignition of fuels |
CH643804A5 (en) * | 1980-07-24 | 1984-06-29 | Oerlikon Buehrle Ag | Explosive and process for its manufacture |
Also Published As
Publication number | Publication date |
---|---|
IL107975A0 (en) | 1994-07-31 |
EP0605030B1 (en) | 1996-03-13 |
NO934825D0 (en) | 1993-12-27 |
NO302088B1 (en) | 1998-01-19 |
ES2085714T3 (en) | 1996-06-01 |
ATE135339T1 (en) | 1996-03-15 |
CH685343A5 (en) | 1995-06-15 |
NO934825L (en) | 1994-06-29 |
US5447104A (en) | 1995-09-05 |
DE59301895D1 (en) | 1996-04-18 |
IL107975A (en) | 1997-01-10 |
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