EP1059505B1 - Treibladungshülse aus Metall, die mit einer inneren Erosionsschutzschicht versehen ist - Google Patents

Treibladungshülse aus Metall, die mit einer inneren Erosionsschutzschicht versehen ist Download PDF

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Publication number
EP1059505B1
EP1059505B1 EP00401523A EP00401523A EP1059505B1 EP 1059505 B1 EP1059505 B1 EP 1059505B1 EP 00401523 A EP00401523 A EP 00401523A EP 00401523 A EP00401523 A EP 00401523A EP 1059505 B1 EP1059505 B1 EP 1059505B1
Authority
EP
European Patent Office
Prior art keywords
cartridge case
sleeve
combustible
titanium oxide
nitrocellulose
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 - Lifetime
Application number
EP00401523A
Other languages
English (en)
French (fr)
Other versions
EP1059505A1 (de
Inventor
Isabelle Brun
Jean-Louis Paulin
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.)
Safran Ceramics SA
Original Assignee
SNPE Materiaux Energetiques SA
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 SNPE Materiaux Energetiques SA filed Critical SNPE Materiaux Energetiques SA
Publication of EP1059505A1 publication Critical patent/EP1059505A1/de
Application granted granted Critical
Publication of EP1059505B1 publication Critical patent/EP1059505B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/24—Cartridges, i.e. cases with charge and missile for cleaning; for cooling; for lubricating ; for wear reducing

Definitions

  • the present invention provides such a solution and primarily relates to a new socket metallic ammunition for firearms comprising a metal bottom and skirt, at least partially internally coated with a new anti-erosion additive comprising titanium oxide as an anti-erosion agent.
  • This new socket is characterized in that the new anti-erosion add-on is a rigid sleeve made up of a combustible matrix loaded with powdery titanium oxide, in that the weight content of TiO 2 is between 10% and 30% relative to the total weight of the sleeve, limits included, and in that the combustible matrix comprises fibrous nitrocellulose, fibrous cellulose and an organic resin.
  • the sleeve has a longitudinal slot or helical over its entire length so as to offer a certain radial elasticity facilitating its implementation place by the collar of the socket, as well as its positioning and holding it against the surface inside of the sleeve skirt.
  • the combustible matrix is essentially consisting of fibrous nitrocellulose, of fibrous cellulose and organic resin, say that the sum of the weight contents in nitrocellulose, cellulose and resin is more than 95% with respect to the fuel matrix.
  • fibrous nitrocellulose it is possible to use any industrial nitrocellulose with a nitrogen level less than 13.8%.
  • the apparent density measured is 0.85 g / cm 3 .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Paints Or Removers (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Materials For Medical Uses (AREA)

Claims (9)

  1. Metallhülse einer Munition für Schusswaffen, die auf ihrer Innenseite mindestens teilweise mit einem erosionshemmenden Zusatzmaterial beschichtet ist, das pulverförmiges Titandioxid enthält, dadurch gekennzeichnet, dass das erosionshemmende Zusatzmaterial eine steife Auskleidung ist, die aus einer brennbaren Matrix besteht, die Titandioxid als Füllstoff enthält, dass der gewichtsbezogene Mengenanteil an Titandioxid im Bereich von 10 bis 30 % liegt, bezogen auf das Gesamtgewicht der Auskleidung, und dass die brennbare Matrix faserförmige Nitrocellulose, faserförmige Cellulose und ein organisches Harz enthält.
  2. Metallhülse nach Anspruch 1, dadurch gekennzeichnet, dass die brennbare Matrix im wesentlichen aus faserförmiger Nitrocellulose, faserförmiger Cellulose und organischem Harz besteht.
  3. Metallhülse nach Anspruch 1, dadurch gekennzeichnet, dass das Gewichtsverhältnis Harz/Nitrocellulose + Cellulose im Bereich von 0,05 bis 0,15 liegt und dass das Gewichtsverhältnis Nitrocellulose/Cellulose im Bereich von 8 bis 1/2 liegt.
  4. Metallhülse nach Anspruch 1, dadurch gekennzeichnet, dass das organische Harz unter Acrylharzen, Vinylharzen, Latices auf Butadienbasis und den Gemischen dieser Substanzen ausgewählt ist.
  5. Metallhülse nach Anspruch 1, dadurch gekennzeichnet, dass die Auskleidung auf ihrer Außenseite in Längsrichtung Furchen aufweist, die im Kontakt mit der inneren Oberfläche der Wandung der Hülse stehen.
  6. Metallhülse nach Anspruch 1 dadurch gekennzeichnet, dass die Auskleidung über ihre gesamte Länge einen in Längsrichtung oder helixförmig angeordneten Schlitz aufweist.
  7. Metallhülse nach Anspruch 1, dadurch gekennzeichnet, dass die Auskleidung aus einer Stapelung mehrerer Teilstücke besteht.
  8. Munition für Schusswaffen, die eine Metallhülse umfasst, die mit einem Zünder, einem Geschoß ausgestattet ist, und die eine brennbare Treibladung enthält, dadurch gekennzeichnet, dass die Hülse eine Hülse nach einem der Ansprüche 1 bis 7 ist.
  9. Erosionshemmendes Zusatzmaterial für die Beschichtung der Innenseite der Metallhülse einer Munition für Schusswaffen, dadurch gekennzeichnet, dass das erosionshemmende Zusatzmaterial eine steife Auskleidung ist, die aus einer brennbaren Matrix besteht, die Titandioxid als Füllstoff enthält, dass der gewichtsbezogene Mengenanteil an Titandioxid im Bereich von 10 bis 30 % liegt, bezogen auf das Gesamtgewicht der Auskleidung, und dass die brennbare Matrix faserförmige Nitrocellulose, faserförmige Cellulose und ein organisches Harz enthält.
EP00401523A 1999-06-08 2000-05-30 Treibladungshülse aus Metall, die mit einer inneren Erosionsschutzschicht versehen ist Expired - Lifetime EP1059505B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9907219A FR2794854B1 (fr) 1999-06-08 1999-06-08 Douille metallique de munition pour armes a feu interieurement revetue d'un manchon anti-erosif
FR9907219 1999-06-08

Publications (2)

Publication Number Publication Date
EP1059505A1 EP1059505A1 (de) 2000-12-13
EP1059505B1 true EP1059505B1 (de) 2004-01-21

Family

ID=9546519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00401523A Expired - Lifetime EP1059505B1 (de) 1999-06-08 2000-05-30 Treibladungshülse aus Metall, die mit einer inneren Erosionsschutzschicht versehen ist

Country Status (5)

Country Link
EP (1) EP1059505B1 (de)
AT (1) ATE258305T1 (de)
DE (1) DE60007799T2 (de)
FR (1) FR2794854B1 (de)
IL (1) IL136555A (de)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB998450A (en) * 1956-11-14 1965-07-14 Mini Of Nat Defence Of Canada Reduction of gun barrel wear
GB950608A (en) 1959-08-14 1964-02-26 Military Training Device Co Ak Improvements in or relating to ammunition cartridges
DE1578199B1 (de) * 1966-01-24 1970-03-05 Prb Nv Kartusche od.dgl.fuer Feuerwaffen
FR1526983A (fr) 1966-01-24 1968-05-31 Prb Nv Réducteur d'érosion
US3403625A (en) * 1968-01-18 1968-10-01 Wegematic Corp Wear reduction additives
DE3544907A1 (de) * 1985-12-19 1987-06-25 Diehl Gmbh & Co Additiv-manschette fuer grosskalibrige geschuetzmunition zur schonung des waffenrohres

Also Published As

Publication number Publication date
ATE258305T1 (de) 2004-02-15
FR2794854B1 (fr) 2002-05-17
EP1059505A1 (de) 2000-12-13
IL136555A (en) 2003-03-12
IL136555A0 (en) 2001-06-14
FR2794854A1 (fr) 2000-12-15
DE60007799T2 (de) 2004-11-25
DE60007799D1 (de) 2004-02-26

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