EP3011257B1 - Élément d'écartement, corps de charge creuse et charge explosive ainsi que kit associé - Google Patents

Élément d'écartement, corps de charge creuse et charge explosive ainsi que kit associé Download PDF

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Publication number
EP3011257B1
EP3011257B1 EP14734382.6A EP14734382A EP3011257B1 EP 3011257 B1 EP3011257 B1 EP 3011257B1 EP 14734382 A EP14734382 A EP 14734382A EP 3011257 B1 EP3011257 B1 EP 3011257B1
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EP
European Patent Office
Prior art keywords
explosive charge
charge body
chamber
hollow
cylinder
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.)
Active
Application number
EP14734382.6A
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German (de)
English (en)
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EP3011257A1 (fr
Inventor
Sven-Christian Hesse
Detlef Lambertus
Roy Jones
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.)
Atlas Elektronik GmbH
Original Assignee
Atlas Elektronik GmbH
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Publication date
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Publication of EP3011257A1 publication Critical patent/EP3011257A1/fr
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Publication of EP3011257B1 publication Critical patent/EP3011257B1/fr
Active 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
    • F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
    • F42B1/02—Shaped or hollow charges
    • F42B1/024—Shaped or hollow charges provided with embedded bodies of inert material
    • 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
    • F42B3/02—Blasting cartridges, i.e. case and explosive adapted to be united into assemblies

Definitions

  • the invention relates to a Abstandspasselement according to claim 1, in particular Abstandspassring, with a passage opening and a circumferential circulation mating surface, a shaped charge body according to claim 4 with a receptacle for an expansion element, in particular a metal insert, a cylinder and a closure element, wherein cylinder and closure element form a cavity and the cavity has an opening, so that in the cavity superfluous explosive exits at a mutually adjusting the cylinder and closure element, an explosive device according to claim 12, which has the shaped charge body and a kit according to claim 13.
  • Hollow charges are used as cutting loads in material processing.
  • cutting charges can be defined by means of a directed detonation, for example, metal plates are severed. Also, for impressing one or more holes, a shaped charge can be used.
  • the shaped charge / cutting charge is adapted exactly to the material to be processed. If this were not the case, for example, required tolerances for the hole size could not be met. Thus, for example, different shaped charges for certain hole dimensions are mass-produced.
  • shaped charges are used.
  • the mine is generally subjected to a sufficiently large hollow charge, so that an exploding of the dud is guaranteed.
  • FR 2 897 553 A1 discloses an element for incorporation in a shaped-charge body having a passage opening, a circumferential circulation fitting surface, an end-side fitting surface and a foot-side concave pressure wave reflection surface opposite the fitting surface, with a reflection radius to a foot-side focus.
  • DE 10 2007 002979 A1 describes a planar spacer element for incorporation into a body of projectile forming charge.
  • WO 03/058155 A1 describes an annular spacer element for installation in a shaped charge body.
  • US 2011/239888 A1 describes a demarcation element for installation in a shaped charge body with convex-concave surfaces.
  • the object of the invention is to improve the prior art.
  • a distance pass element in particular distance pass ring, according to claim 1, with a passage opening, a circumferential circulation mating surface, with a frontal convex fitting surface with a Einpassradius R E to a first focus and one of the Einpass components opposite foot-side concave pressure wave reflection surface with a Reflection radius R R to a second focus, wherein the first and second focus are formed on the foot side.
  • the present spacer element can be set defined in a chamber explosive in a hollow charge defined in a chamber.
  • the amount of explosive regularly has an influence on the penetration depth, so that adaptable to a shaped charge explosive device can be adapted to a variety of situations.
  • the design of the radius R R of the concave pressure wave reflection surface of the (pressure wave) focus can be changed so that the opening characteristic, for example of the hole blown in can be changed in a defined manner.
  • a component can be provided by defined blowing characteristics are set on site, without the provision of multiple prepared different shaped charge explosive device is necessary.
  • the "spacer element” is in particular an annular element, which can be introduced into a shaped charge explosive device, so that after assembly the explosive-filled chamber is reduced by the volume of the spacer element.
  • the spacer element “snuggles” exactly into the chamber, so that further secondary cavities (additional chambers) or too large joints and gaps are prevented.
  • a "passage opening” is provided, so that when a shaped charge explosive is assembled, excessive explosive can pass out of the chamber through the passage opening and / or an ignition of the explosive is possible.
  • the "circumferential circulation pass-through surface” is in particular produced in such a way that it can be fitted exactly into a chamber of the shaped charge explosive device, so that no additional cavities are created.
  • the distance (gap) between the circulation mating surface and the cylinder inner surface of the chamber is limited to a few hundredths of a millimeter. The permissible distance value depends in particular on the viscosity of the explosive to be used.
  • the chamber in the shaped charge explosive device has a concave pressure wave reflection surface matching the "convex fitting surface”. Furthermore, the convex fitting surface forms a "fitting radius R E ".
  • Example values for this fitting radius R E are values between 0.5 cm and 1.00 m, wherein preferably values between 0.5 cm and 30 cm can be used. It is particularly advantageous if the focus is arranged to the concave pressure wave reflection surface within the Hohladunsgs explosive device. It is particularly effective when this focus is directed to an inserted expander (liner).
  • the "concave pressure wave reflection surface” represents by the curvature of a displacement of a pressure wave reflection surface of the shaped charge explosive device.
  • the “concave pressure wave reflection surface” has the “reflection radius R R " on. Due to the concave curvature, a pressure wave forming by explosion of the explosive can be concentrated in an associated focus.
  • Example values for this reflection radius R R are values between 0.3 cm and 1.00 m, wherein preferably values between 0.3 cm and 30 cm can be used. It is particularly advantageous if the focus is arranged to the concave pressure wave reflection surface within the Hohladunsgs explosive device. It is particularly effective when this focus is directed to an inserted expansion element (liner).
  • the "focus” is the place where the pressure wave is concentrated.
  • the center of the focus essentially coincides with the center of an imaginary sphere or an imaginary (sectional) circle, which describes with its (partial) spherical surface or with its (partial) circular line pressure wave reflection surface and / or fitting surface or their sections.
  • the spacer element is made of an inert material, so that the occurrence of a spark is excluded.
  • Plastic material is, in particular, a dimensionally stable plastic which is pourable. It can be used as plastic in particular polyethylene (PE) or polyamide or the like, and mixtures thereof.
  • the first and the second focus can be located at the same position.
  • the penetration depth can be varied defined.
  • the object is achieved by a shaped charge body according to claim 4 with a receptacle for an expansion element, in particular a metal insert, a cylinder and a closure element, wherein cylinder and closure element form a chamber and the chamber has an opening, so that in the Chamber located superfluous explosive at a mutually adjusting the cylinder and closure element exits, wherein the shaped charge body is configured such that at least two or more defined volume values can be formed through the chamber.
  • a shaped charge body can be provided which is adjustable at a place of use to the conditions there.
  • a provision of different explosive charges is no longer necessary because a variety of blasting characteristics through the different adjustable volume values of the chamber can be realized.
  • a “hollow charge body” is a body which equipped with explosives and an expansion element forms a shaped charge, also called shaped charge explosive device.
  • the hollow charge body in this case has both the cavity for expanding the expansion element and a “chamber” in which the explosive is located. Cavity and chamber are separated from each other in particular by the expansion element.
  • the "recording for an expansion element” is used for the defined fixation of an expansion element.
  • the fixation is done in one direction. In a simple implementation, this can be done by a circumferential projection within the shaped charge body.
  • the "cylinder” and the “closure element” form the body of the Hohlladunsg stresses substantially in the assembled state.
  • the cavity and the expansion element can be arranged both in the cylinder and in the closure element.
  • the chamber can each be arranged in the cylinder or in the closure element or can also be formed by the interaction of cylinder and closure element.
  • the "chamber” serves to receive the explosive.
  • the chamber walls are in particular by the cylinder and / or formed the closure element.
  • the one lateral boundary is made by the expansion element and the other boundary in particular by a concave pressure wave reflection surface, which in turn formed in particular by the cylinder and / or the closure element.
  • concave pressure wave reflection surface can be designed such that their focus is partially disposed in the expansion element.
  • the "adjustment" takes place in particular continuously. In its simplest form, this can be done by screwing together cylinder and closure element.
  • the "opening" allows communication from the interior of the chamber to the outside.
  • two things can be realized.
  • superfluous explosive can get out of the chamber to the outside
  • an external access to the explosives can be provided in the chamber, so that the explosives can be ignited.
  • plastic explosives such as C4 or PBX (polymer-bound explosives) are used as "explosives”.
  • C4 consists in particular of 91% hexogen, 5.3% bis (2-ethylhexyl) sebacate (DOS), 2.1% polyisobutylene and 1.6% mineral oil. Due to their plasticity, these explosives can completely fill the chamber during adjustment, so that pore formation or the formation of trapped air can be avoided.
  • the depth of penetration has a functional relationship with the chamber volume filled with explosive, it is possible to use "defined volume values" the penetration depth can be set for different materials to be penetrated.
  • the shaped charge body has a distance adjustment element, which on one side delimits a displacement of cylinder and closure element, so that the chamber forms one of the defined volume values.
  • the cylinder may have a plurality of laterally offset threaded bores into which a screw can be introduced. Now cylinder and closure element are pushed together or twisted to each other limits the write further adjustment. If this screw is removed and moved back into another threaded hole, the result is a smaller chamber volume after complete displacement.
  • clipable spacer rings can be placed on the cylinder from the outside, in which case the cylinder has staggered grooves for the spacer rings.
  • the hollow charge body has a previously described spacer element, wherein the spacer element is arranged in the chamber, so that the remaining space of the chamber forms a defined volume value.
  • the chamber volume can thus be adjusted while maintaining the focus, since, for example, the spacer element has a correspondingly adapted pressure wave reflection surface.
  • the shaped charge body has further previously mentioned spacer elements, so that the remaining space of the chamber forms one of the further defined volume values.
  • the chamber volume can be adjusted defined.
  • an expansion element can be arranged in the receptacle for an expansion element.
  • the expansion element in question is also called a liner.
  • the resulting in an explosion pressure and heat wave can plastically deform the liner, so that in particular a directional pressure and / or heat wave arises.
  • Such liners are produced in particular by thermoforming and have a low material thickness.
  • the expansion element in the form of a disc, a hemisphere, a cone or a truncated cone or mixed forms thereof.
  • the expansion element made of metal, in particular copper, aluminum, magnesium, iron, uranium, silver, gold, platinum, tantalum, niobium or their alloys, exist.
  • the penetration depth and / or the hole characteristic can be influenced.
  • the shaped charge body has a concave pressure wave reflection surface whose focus lies within the chamber or the cavity.
  • the hole characteristic can in turn be influenced by the defined shifting of the focus.
  • the shaped charge body can be made of an inert material, so that a generation of a spark is excluded.
  • an explosive device having a hollow charge body described above, wherein the chamber is completely filled with an explosive and in the opening an ignition element is arranged.
  • This explosive device can be assembled on site according to the desired specifications and used directly. An order of a special explosive device or a corresponding provision of explosive devices can be omitted.
  • a catalog can be used to specify a configuration for specific mines or applications to be cleared so that on-site customization is done correctly. Material-dependent blasting characteristics can also be provided in a catalog.
  • the object can be achieved by a kit according to claim 13 for producing a hollow charge body described above, wherein the kit comprises the cylinder and the closure element, so that when a combination of cylinder and closure element of the shaped charge body can be produced.
  • the kit has a previously described spacer element and / or the distance adjustment on.
  • an adaptable blasting system can be provided.
  • the kit may include the expansion element and / or an ignition element and / or an explosive.
  • a spacer ring 101 is made of plastic.
  • the spacer ring 101 has an opening 103, which leads from a pressure wave reflection surface 107 with reflection radius R R to a fitting surface 105 with a fitting radius R E.
  • the spacer ring 101 has a cylindrical shape with a circulation fitting surface 109.
  • the radii R R and R E have the common focus 121.
  • the focus 121 is directed to the tip of a conical liner 111, also called a metal insert.
  • the liner has been made by deep drawing and hollow inside.
  • the chamber of a shaped charge 201 is defined defined.
  • the hollow charge 201 is configured rotationally symmetrical about a center line 202.
  • the shaped charge comprises the cylinder 203 and the closure 205.
  • the cylinder 203 has an external thread 239, which is arranged on the cylinder outer casing 231.
  • the cylinder 203 is hollow inside and has a cylinder inner casing 233.
  • the cylinder inner casing 233 is stepped, so that a liner receptacle 235 is formed.
  • the cavity 241 forms.
  • the cylinder 203 has a bottom opening 237.
  • the closure 205 has an internal thread, which extends to the stop 251.
  • the closure 205 has a closure inner jacket 253 and the reflection surface 255 with radius R E.
  • a closure opening 257 is arranged in the closure 205.
  • the internal thread of the closure 205 and the external thread 239 of the cylinder 203 are arranged to each other such that by a mutual screwing of cylinder 203 and closure 205, a shaped charge body is formed.
  • stopper 251 is given a closed chamber shaped body between a liner 111, cylinder 203 and closure 205 forming chamber with a fixed volume.
  • An explosive device can be manufactured as follows. (please refer FIG. 2 and merge directions 211). In the Cylinder 203 is inserted from above the liner 111. Additionally into the closure 205 is also inserted from the top of the spacer 101 such that the engagement surface 105 coincides with Einpassradius R E with the reflection surface 255 of radius R E. The C4 plastic explosive 207 is hand formed into an elongate body and placed between the liner 111 and the spacer ring 101. Subsequently, the cylinder 103 is screwed with liner 111 introduced with the closure 205 with the introduced spacer ring and located in the chamber C4-Kunststoffsprengsoff.
  • the plastic explosive fills the entire space between liner 111 and spacer ring 101 and excess C4 plastic explosive is conveyed through the opening 103 and closure opening 257 to the outside.
  • the resulting hollow charge 201 is now operational. At the location of the insert, the hollow charge 201 is attached with its bottom opening 237 where the blasting result is to take place. After ignition, a directional pressure wave emerges which emerges from the bottom opening 237. The associated depth of penetration is less than that which would arise if one Assembling the hollow charge 201 of the spacer ring 101 would not be used.
  • a suitable for variable use kit 301 is in the FIG. 3 shown.
  • the kit is arranged in a case which has a foam in its interior, are provided in the receptacles for the individual components.
  • the kit 301 comprises a cylinder 203, a closure 205, C4 plastic explosive 207, a spacer ring 101 and a further spacer ring, which is configured as a spacer ring 311.
  • kit 301 includes two detonators 209.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Claims (15)

  1. Élément d'ajustement d'écartement (101), notamment bague d'ajustement d'écartement, destiné à être installé dans un corps de charge creuse, comprenant une ouverture de passage (103), une surface d'ajustement circonférentielle périphérique (109), comprenant une surface d'ajustement convexe côté avant (105) avec un rayon d'ajustement RE vers un premier foyer (121) et une surface de réflexion des ondes de pression (107) en regard de la surface d'ajustement avec un rayon de réflexion RR vers un second foyer (121), les premier et second foyers étant disposés au niveau du pied, de sorte que, en cas d'installation de l'élément d'ajustement d'écartement dans le corps de charge creuse, une caractéristique explosive définie puisse être réglée sur site au moyen de l'élément d'ajustement d'écartement.
  2. Élément d'ajustement d'écartement selon la revendication 1, caractérisé en ce que l'élément d'ajustement d'écartement est fabriqué en un matériau inerte, de sorte que l'apparition d'une étincelle soit exclue.
  3. Élément d'ajustement d'écartement selon une des revendications précédentes, caractérisé en ce que les premier et second foyers sont situés dans la même position.
  4. Corps de charge creuse présentant un logement pour un élément d'expansion (111), en particulier un insert métallique, un cylindre (203) et un élément de fermeture (205), le cylindre et l'élément de fermeture formant une chambre et la chambre comportant un orifice, de sorte qu'un surplus de matière explosive (207) se trouvant dans la chambre s'échappe lors d'un déplacement du cylindre et de l'élément de fermeture l'un vers l'autre et le corps de charge creuse est conçu de telle sorte que la chambre puisse générer au moins deux valeurs de volume définies, caractérisé en ce que le corps de charge creuse présente un élément d'ajustement d'écartement selon une des revendications 1 à 3, l'élément d'ajustement d'écartement étant disposé dans la chambre, de sorte que l'espace restant de la chambre forme une valeur de volume définie et le corps de charge creuse puisse être réglé sur une caractéristique explosive définie sur site.
  5. Corps de charge creuse selon la revendication 4, caractérisé par un élément de réglage d'écartement, qui délimite d'un côté un déplacement du cylindre et de l'élément de fermeture, de sorte que la chambre forme une des valeurs de volume définies.
  6. Corps de charge creuse selon la revendication 5, caractérisé par d'autres éléments d'ajustement d'écartement selon une des revendications 1 à 3, de sorte que l'autre espace restant de la chambre forme une des autres valeurs de volume définies.
  7. Corps de charge creuse selon une des revendications 4 à 6, caractérisé en ce que, dans le logement pour un élément d'expansion, un élément d'expansion est disposé, de sorte qu'une onde de chaleur et/ou de pression provoquée par une expansion soit orientée par le biais de l'élément d'expansion.
  8. Corps de charge creuse selon la revendication 7, caractérisé en ce que l'élément d'expansion présente la forme d'un disque (325, 335), d'un hémisphère (323, 333), d'un cône (321, 331) ou d'un cône tronqué ou de mélanges de ces formes.
  9. Corps de charge creuse selon une des revendications 7 ou 8, caractérisé en ce que l'élément d'expansion est constitué de métal, en particulier de cuivre, d'aluminium, de magnésium, de fer, d'uranium, d'argent, d'or, de platine, de tantale, de niobium ou de leurs alliages.
  10. Corps de charge creuse selon une des revendications 4 à 9, caractérisé en ce que le corps de charge creuse présente une surface de réflexion des ondes de pression concave (255), dont le foyer se situe à l'intérieur de la chambre ou de l'espace creux.
  11. Corps de charge creuse selon une des revendications 4 à 10, caractérisé en ce que le corps de charge creuse est fabriqué en un matériau inerte, de sorte que l'apparition d'une étincelle soit exclue.
  12. Engin explosif (201) comprenant un corps de charge creuse selon une des revendications 4 à 11, la chambre étant remplie totalement d'un explosif et étant disposée dans l'orifice d'un élément d'allumage (209).
  13. Nécessaire de montage (301) pour la fabrication d'un corps de charge creuse selon une des revendications 4 à 11, le nécessaire de montage présentant le cylindre et l'élément de fermeture, de sorte que lors d'un assemblage du cylindre et de l'élément de fermeture, le corps de charge creuse puisse être fabriqué.
  14. Nécessaire de montage selon la revendication 13, caractérisé par d'autres éléments d'ajustement d'écartement selon une des revendications 1 à 3.
  15. Nécessaire de montage selon une des revendications 13 ou 14, caractérisé par l'élément d'expansion et/ou un élément d'allumage et/ou un explosif.
EP14734382.6A 2013-06-18 2014-05-21 Élément d'écartement, corps de charge creuse et charge explosive ainsi que kit associé Active EP3011257B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013106335.7A DE102013106335A1 (de) 2013-06-18 2013-06-18 Abstandselement, Hohlladungskörper und Sprengsatz sowie zugehöriger Bausatz
PCT/DE2014/100174 WO2014202048A1 (fr) 2013-06-18 2014-05-21 Élément d'écartement, corps de charge creuse et charge explosive ainsi que kit associé

Publications (2)

Publication Number Publication Date
EP3011257A1 EP3011257A1 (fr) 2016-04-27
EP3011257B1 true EP3011257B1 (fr) 2018-03-14

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EP14734382.6A Active EP3011257B1 (fr) 2013-06-18 2014-05-21 Élément d'écartement, corps de charge creuse et charge explosive ainsi que kit associé

Country Status (3)

Country Link
EP (1) EP3011257B1 (fr)
DE (1) DE102013106335A1 (fr)
WO (1) WO2014202048A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3089417A (en) * 1961-01-23 1963-05-14 Raymond H Beyer Explosive cable-cutting fitting
FR2897553A1 (fr) * 2006-02-20 2007-08-24 Commissariat Energie Atomique Sectionneur pyrotechnique a charge creuse annulaire pour pieces de section circulaire

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977946C (de) * 1960-05-14 1974-04-11 Wasagchemie Ag Verfahren zur Erzeugung einer Sekundaerwirkung in Verbindung mit der an sich bekannten Wirkung einer Hohlladung
DE977835C (de) * 1964-09-09 Messerschmitt Boelkow Blohm Hohlladung zur Erzeugung schnittartiger Wirkungen
DE10115950C1 (de) * 2001-03-30 2002-06-06 Eads Deutschland Gmbh Verfahren und Vorrichtung zur Entschärfung von Munition
GB0200267D0 (en) * 2002-01-08 2002-02-20 Alford Sidney C Device for the disruption of explosive ordnance
DE10201191B4 (de) * 2002-01-14 2005-10-13 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH System zur Erzeugung der Reaktion einer Munition
AU2002952984A0 (en) * 2002-11-28 2002-12-12 Scott Allman Forced entry system
DE102006018687A1 (de) * 2006-04-21 2007-11-08 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Umschaltbare Ladung
DE102007002979A1 (de) * 2007-01-19 2008-07-24 Bundesrepublik Deutschland, vertreten durch das Bundesministerium der Verteidigung, dieses vertreten durch das Bundesamt für Wehrtechnik und Beschaffung Projektilbildende Ladung und Set zum Vor-Ort-Zusammenbau
US8037829B1 (en) * 2008-06-11 2011-10-18 Raytheon Company Reactive shaped charge, reactive liner, and method for target penetration using a reactive shaped charge

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3089417A (en) * 1961-01-23 1963-05-14 Raymond H Beyer Explosive cable-cutting fitting
FR2897553A1 (fr) * 2006-02-20 2007-08-24 Commissariat Energie Atomique Sectionneur pyrotechnique a charge creuse annulaire pour pieces de section circulaire

Also Published As

Publication number Publication date
EP3011257A1 (fr) 2016-04-27
WO2014202048A1 (fr) 2014-12-24
DE102013106335A1 (de) 2014-12-18

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