EP0086382B1 - Treibladung für Hülsenmunition und Verfahren zu ihrer Herstellung - Google Patents

Treibladung für Hülsenmunition und Verfahren zu ihrer Herstellung Download PDF

Info

Publication number
EP0086382B1
EP0086382B1 EP83100845A EP83100845A EP0086382B1 EP 0086382 B1 EP0086382 B1 EP 0086382B1 EP 83100845 A EP83100845 A EP 83100845A EP 83100845 A EP83100845 A EP 83100845A EP 0086382 B1 EP0086382 B1 EP 0086382B1
Authority
EP
European Patent Office
Prior art keywords
charge
propelling
powder bodies
powder
propellant
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.)
Expired
Application number
EP83100845A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0086382A3 (en
EP0086382A2 (de
Inventor
Gero Wähner
Michael Dr. Korn
Dieter Fichter
Heinrich Dr. Brachert
Dieter Girke
Johan Dr. Kobes
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.)
Mauser Werke Oberndorf GmbH
Original Assignee
Mauser Werke Oberndorf GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6155632&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0086382(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mauser Werke Oberndorf GmbH filed Critical Mauser Werke Oberndorf GmbH
Publication of EP0086382A2 publication Critical patent/EP0086382A2/de
Publication of EP0086382A3 publication Critical patent/EP0086382A3/de
Application granted granted Critical
Publication of EP0086382B1 publication Critical patent/EP0086382B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
    • F42B33/02—Filling cartridges, missiles, or fuzes; Inserting propellant or explosive charges
    • F42B33/025—Filling cartridges, missiles, or fuzes; Inserting propellant or explosive charges by compacting
    • 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

Definitions

  • the invention relates to a propellant charge for shell ammunition from propellant powder bodies, such as multi-hole, tube, strip and ball powder bodies, and a method for producing such propellant charges.
  • the individual propellant powder bodies of a propellant burn in layers, each perpendicular to their surface, so that the basic geometric shape is largely retained in its basic tendency.
  • This burning rate which proceeds perpendicular to the surface of the propellant powder, depends on the combustion pressure.
  • the mass gradient over time of the implementation in turn corresponds to the product of the respective burn rate, blowing agent surface and blowing agent density.
  • propellant charges therefore use propellant powder with progressive burn-up characteristics, i.e. in the course of the erosion, the initial erosion surface grows up to a maximum value in the vicinity of the flame cut. If the progressivity of a propellant charge increases, the initial burn-up surface of the entire propellant charge, based on the same charge density and the same maximum gas pressure, must - and this can be deduced from the inside ballistic - in the cartridge.
  • a reduction in the initial burn-up surface required by the higher progressiveness of the propellant powder bodies normally means a reduction in the propellant powder mass.
  • plasticizers preferably centralites, phthalates or camphor.
  • These treatment agents have a negative enthalpy of formation and reduce the total energy of the charge mass. Because of the impregnation effect of these treatment agents, the burning rate also decreases in such a way that the greatest relative reduction in the burning rate occurs at the highest concentration of the treatment agent in the propellant powder grain, that is to say practically on the surface. This is equivalent to a reduction in the surface of the erosion; because the temporal gas mass gradient corresponds to the product of the burn-up surface, burning rate and density.
  • a propellant charge adaptation carried out in this way brings about a considerable gain in progressiveness of the propellant charge and an increase in the product of the burning rate and the burn-off surface, because of the increase in the propellant charge mass compared to the untreated propellant charge powder.
  • the progressive gain described leads to a considerable widening of the pressure-time curve and thus to a considerable gain in performance.
  • the limits for such measures lie on the one hand in the limitation of the maximum possible propellant charge itself, on the other hand in the fact that propellant charge powders that have been heavily surface-treated are more difficult to ignite. This is disadvantageous in terms of total shot time.
  • the energy balance of the propellant charge would deteriorate so much from a certain treatment strength that this energy loss of performance could no longer be compensated for by the internal ballistic advantages.
  • a heaped propellant charge is usually used, which is usually laboratoryized in the form of granules as tubes, strips, spheres or multi-hole cylinders.
  • the charge density is then about 0.9 to 1.0 g / cm 3 , with individual high-quality propellant powder types at best 1.05 g / cm 3.
  • Surface treatment is determined by the weapon and ammunition parameters. An improvement in the performance of such an optimized bulk powder load is not possible without changing the parameters, for example increasing the maximum gas pressure or extending the floor path.
  • a process for the production of solidified powder loads has become known from DE-OS 24 03 417.
  • the solidified powder charge consists of compressed granules of non-smoking powder with a large number of lattice spaces, which are largely uniformly distributed over the entire compacted mass. It is essential that the surfaces of the individual granules are first softened in the manufacture of these solidified powder loads by being exposed to solvent vapors and only then pressed together.
  • such a method is disadvantageous in that complex measures have to be taken to avoid a hazard to exclude human health.
  • FR-A 23 74 278 discloses a method for producing a propellant charge in which the powder bodies are subjected to a surface treatment with a gelling and plasticizing agent, for example glycerol ester. The powder bodies are then pressed together in a mold at elevated temperature.
  • a gelling and plasticizing agent for example glycerol ester
  • US Pat. No. 392,922 describes a powder charge in which the charge is compressed into a single solid mass. This solidified, dense and stable mass block is manufactured separately in a suitable form and then used in propellant charge cases.
  • the object of the invention is therefore to provide a propellant charge for cartridge ammunition and a method for their production, by means of which the performance is increased compared to the known propellant charges, without this resulting in increased workload and a risk to people from solvent vapors.
  • this object is achieved in that the charge compressed by using external pressure and without the addition of binders and / or solvents up to a loading density of between 1.0 and 1.5 g / cm 3 is wholly or at least in part quantities from multi-hole or tubular powder bodies, the charge being deformed elastically to plastically in the case of an almost uniform or gradually different compression in such a way that the reduced clear width of the inner channels of the powder bodies and the reduction in their burn-off surface can be compensated by increasing the charge mass with delayed burn-up.
  • the invention is based on the known elastic powder bodies. These are elastic due to the addition of plasticizers to the nitrocellulose before it is shaped. The degree of elasticity largely depends on the type and amount of plasticizer used. The elasticity is also influenced by a subsequent surface treatment with these plasticizers.
  • plasticizers in these elastic blowing agent powder bodies are also known plasticizers for nitrocellulose, such as e.g. Camphor and phthalic acid esters. They can be contained alone or as a mixture in the nitrocellulose before it is subjected to the shaping;
  • the pressure to be used in the production of the compressed propellant charge according to the invention depends on the charge density, which strongly influences the burn-up characteristics of the total charge, and on the other hand on the elasticity of the powder bodies.
  • powder bodies with a higher plasticizer content may have to be used.
  • the main component of the propellant charge is nitrocellulose.
  • their proportion is at most 85 to 90 percent by weight, depending on which plasticizers are used and how high the proportion of these plasticizers in the powder bodies is.
  • the propellant charge bodies must have certain geometric shapes, such as multi-hole cylinders or tubes, at least in a subset.
  • the inventive method then changes the geometric shape of these bodies in such a way that the clear width of the inner channels is reduced. This is tantamount to a reduction in the surface area of the erosion, so that the charge mass can be increased within certain limits due to the initially sketched relationships without increasing the maximum gas pressure with a corresponding adaptation of the geometry or surface treatment of the propellant charge powder.
  • the propellant charge can consist of portions which are compacted with the same or different pressures in sections, uniformly or gradually differently in the propellant charge sleeve.
  • the filled in portions are pressed together with different pressures, there will be deliberate inhomogeneities in the charge density.
  • the pressing can take place in such a way that the charge density decreases almost continuously from the bottom of the case to the case mouth of the propellant charge case.
  • the subsets can also be composed of different propellant powder bodies in the recipe and / or geometry.
  • the propellant charge powder bodies cannot deposit graphite during the pouring process and the pressing on the sleeve mouth, which would lead to a reduction in the frictional forces on the inner wall of the sleeve.
  • the projectile which is connected to the propellant charge sleeve by choking, has different pull-out resistances, which results in internal ballistic changes or the supply security of the cartridges is reduced.
  • the pressure-sensitive ignition element is already arranged in the bottom of the propellant charge sleeve, this can be protected in a continuation of the invention by means of a dome inserted during the filling and pressing process of the propellant charge powder body, and the channel formed by the mandrel in the center of the propellant charge sleeve can be protected with an ignition mixture and / or be filled with propellant charge powder bodies, if necessary, a pressing process can take place after this filling.
  • a cover made of a plastic, conformable, residue-free combustible material, preferably of Swedish additive material, can also be pressed onto the propellant charge.
  • the surface is composed of the cylinder jacket, the end faces and the surface of the holes in the propellant powder bodies.
  • T stands for temperature and 0 " for the increase in performance due to the increase in floor speed.
  • FIG. 2 The schematic representation of the propellant charge cases with pressed-in propellant charge powder according to FIGS. 2 to 4 shows in FIG. 2 a propellant charge case 100 with a propellant charge powder 101 which is gradually pressed from the case base 102 to the case mouth 103.
  • the charge density increases towards the sleeve mouth 103.
  • FIG. 3 shows an identical propellant charge sleeve 100 with a sleeve base 102 and a sleeve mouth 103.
  • the propellant charge powder 101 has been poured into the propellant charge sleeve 100 in the three subsets 101.1, 101.2 and 101.3 and has been pressed together in sections with the same pressure.
  • a channel 104 which is flared to the sleeve mouth 103 and is filled with a propellant charge powder 105.
  • the upper, free press rim of the upper subset of the propellant charge powder is stabilized against crumbling and / or throwing up of the press head by a plastic cover 110 which can be burned without leaving residues.
  • FIG. 4 again shows the propellant charge sleeve 100 with the sleeve base 102 and the sleeve mouth 103.
  • the propellant charge powder 101 has been pressed into the propellant charge sleeve 100 at different pressures. This results in the greatest loading density for the lower subset 101.4, which decreases over the subset 101.5 to subset 101.6. In this example, the greatest loading density is located on the base 102 of the sleeve.
  • the channel 104 is created with a conical extension to the mouth 103 of the sleeve.
  • the propellant charge powder is poured into the propellant charge sleeve via a filling funnel 106, the filler neck 107 of which lies directly against the inner wall of the sleeve mouth 103.
  • the ram and 109 with the mandrel to protect the ignition element in the sleeve bottom 102 is designated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Powder Metallurgy (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Secondary Cells (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
EP83100845A 1982-02-13 1983-01-29 Treibladung für Hülsenmunition und Verfahren zu ihrer Herstellung Expired EP0086382B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3205152 1982-02-13
DE3205152A DE3205152C2 (de) 1982-02-13 1982-02-13 Treibladung für Hülsenmunition und Verfahren zu ihrer Herstellung

Publications (3)

Publication Number Publication Date
EP0086382A2 EP0086382A2 (de) 1983-08-24
EP0086382A3 EP0086382A3 (en) 1983-12-14
EP0086382B1 true EP0086382B1 (de) 1986-11-26

Family

ID=6155632

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83100845A Expired EP0086382B1 (de) 1982-02-13 1983-01-29 Treibladung für Hülsenmunition und Verfahren zu ihrer Herstellung

Country Status (5)

Country Link
US (1) US4722814A (enrdf_load_stackoverflow)
EP (1) EP0086382B1 (enrdf_load_stackoverflow)
DE (2) DE3205152C2 (enrdf_load_stackoverflow)
GR (1) GR77804B (enrdf_load_stackoverflow)
NO (1) NO160550C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4202129B4 (de) * 1992-01-27 2005-06-23 Rheinmetall W & M Gmbh Kompakter Ladungskörper

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332224A1 (de) * 1983-09-07 1985-03-21 Rheinmetall GmbH, 4000 Düsseldorf Nachverdichtete treibladung, verfahren zu ihrer herstellung und vorrichtung zum durchfuehren des verfahrens
DE3335821A1 (de) * 1983-10-01 1985-04-11 Rheinmetall GmbH, 4000 Düsseldorf Treibladung und verfahren zu ihrer herstellung
IL74387A (en) * 1984-02-21 1993-02-21 Bofors Ab Method and apparatus for production of cartridged propellant charges for barrel weapons
DE4020691A1 (de) * 1990-06-29 1992-01-02 Dynamit Nobel Ag Fluegelstabilisiertes geschoss
WO1994025414A1 (en) * 1993-05-04 1994-11-10 Alliant Techsystems Inc. Improved propellant system
US5892172A (en) * 1997-04-22 1999-04-06 Alliant Techsystems Inc. Propellant system
DE10152397B4 (de) * 2001-10-24 2009-08-06 BOWAS AG für Industrievertrieb Herstellung von lösungsmittelfreiem Treibladungspulver
US20150268022A1 (en) * 2014-03-23 2015-09-24 Blake Van Brouwer Channel-forming propellant compression die and method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US392922A (en) * 1888-11-13 David johnson and william dalkymple borland

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US30002A (en) * 1860-09-11 Smut-machine
US3032970A (en) * 1957-01-25 1962-05-08 Phillips Petroleum Co Disposable rocket motor
GB1307606A (en) * 1969-04-10 1973-02-21 Wallenberg Co Ab Henry Method of producing containers -for propellant charges- consisting of combustible materials
DE2250823B1 (de) * 1972-10-17 1973-12-06 Wasagchemie GmbH, 8000 München Verfahren zum herstellen von mehlartigem roh-schwarzpulver und dessen weiterbehandlung nach zwischenprozessen
CH579549A5 (enrdf_load_stackoverflow) * 1973-01-18 1976-09-15 Ciba Geigy Ag
CA1052179A (en) * 1973-01-24 1979-04-10 Hercules Incorporated Cased ammunition
DE2316538C3 (de) * 1973-04-03 1982-05-06 Dynamit Nobel Ag, 5210 Troisdorf Verfahren zur Herstellung von Gudol- Pulver
US3968724A (en) * 1974-10-03 1976-07-13 The United States Of America As Represented By The Secretary Of The Army Method for accurately varying the density of a powder or powder charge, and shrink tubes for use therewith
DE2457748A1 (de) * 1974-12-06 1976-06-10 Dynamit Nobel Ag Verfahren zum koernen von schwarzpulver
CA1058882A (en) * 1976-05-31 1979-07-24 Kenneth S. Kalman Prilled explosive composition
FR2374278A1 (fr) * 1976-12-20 1978-07-13 Poudres & Explosifs Ste Nale Chargement unitaire de poudre agglomeree
DE2927791A1 (de) * 1979-07-10 1982-08-19 Dynamit Nobel Ag, 5210 Troisdorf Pulvertreibladung
NL8104114A (nl) * 1981-09-04 1983-04-05 Muiden Chemie B V Werkwijze voor het vervaardigen van omhulde kruitladingen, in het bijzonder van projectielen, met verhoogde ladingsdichtheid.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US392922A (en) * 1888-11-13 David johnson and william dalkymple borland

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4202129B4 (de) * 1992-01-27 2005-06-23 Rheinmetall W & M Gmbh Kompakter Ladungskörper

Also Published As

Publication number Publication date
DE3367978D1 (en) 1987-01-15
DE3205152C2 (de) 1984-04-12
NO830023L (no) 1983-08-15
EP0086382A3 (en) 1983-12-14
US4722814A (en) 1988-02-02
NO160550B (no) 1989-01-16
EP0086382A2 (de) 1983-08-24
GR77804B (enrdf_load_stackoverflow) 1984-09-25
NO160550C (no) 1989-04-26
DE3205152A1 (de) 1983-08-25

Similar Documents

Publication Publication Date Title
DE3031369C2 (de) Pyrotechnische Ladung aus Nebelsatz und Anzündsatz und Verfahren zur Herstellung der Nebelmischung und des Anzündsatzes
DE2402431A1 (de) Treibmittelladung fuer eine patrone
DE2901517C3 (enrdf_load_stackoverflow)
DE3012907A1 (de) Uebungsgranate, insbesondere fuer ausbildungszwecke
EP0086382B1 (de) Treibladung für Hülsenmunition und Verfahren zu ihrer Herstellung
DE2841815A1 (de) Geschossfuellung aus nebeltoepfen
EP0238959B1 (de) Selbsttragender Treibladungskörper und daraus hergestellte Kompaktladung
DE3927400C2 (enrdf_load_stackoverflow)
DE69917523T2 (de) Verfahren zur Herstellung eines Objektes aus körnigem Material und nach diesem Verfahren hergestelltes Zündrohr und Treibsatz
DE2756259C3 (de) Einstückige Pulver-Treibladung, ihre Herstellung und Verwendung
DE3534972C1 (de) Huelsenlose Munition
DE60221659T2 (de) Treibladungspulver für rohrwaffen
DE3506091A1 (de) Verfahren und vorrichtung zum herstellen von treibladungen in patronenform fuer rohrwaffen
DE2313856C3 (de) Treibladungsaufbau
EP0340761B1 (de) Treibladungen für grosskalibrige Geschosse
DE69109982T2 (de) Anzündeinlage für die Haupttreibladung einer teleskopischen Munition.
EP0270781B1 (de) Übungspatrone für rückstossfreie Abwehrwaffen
DE3242106C1 (de) Treibladungsmassen für Rohrwaffen
DE69812075T2 (de) Subsonische munition mit einem neuen geschoss für kleinkaliberwaffen
EP0237711B1 (de) Treibladungsanzünder
DE2520882C1 (de) Ein- oder mehrbasige Pulverk¦rper für Treibladungen und Verfahren zu ihrer Herstellung
DE2248658A1 (de) Verfahren zur herstellung von hartkerngeschossen
EP0499244A2 (de) Treibladungsmodul
DE1811924C3 (de) Treibladungskoerper fuer huelsenlose Munition
DE2852172C2 (enrdf_load_stackoverflow)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19840228

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 3367978

Country of ref document: DE

Date of ref document: 19870115

ITF It: translation for a ep patent filed
ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: AB BOFORS

Effective date: 19870824

NLR1 Nl: opposition has been filed with the epo

Opponent name: AB BOFORS

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19930118

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19930131

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19930622

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19930628

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19930629

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19930824

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19940129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19940130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19940801

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19940129

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 19940916

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 83100845.3

Effective date: 19940810

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO