FR2234113A1 - Explosive cartridge casing has cellulose and nitrocellulose fibres - and is formed by pressing against former using elastic membrane - Google Patents

Explosive cartridge casing has cellulose and nitrocellulose fibres - and is formed by pressing against former using elastic membrane

Info

Publication number
FR2234113A1
FR2234113A1 FR7322722A FR7322722A FR2234113A1 FR 2234113 A1 FR2234113 A1 FR 2234113A1 FR 7322722 A FR7322722 A FR 7322722A FR 7322722 A FR7322722 A FR 7322722A FR 2234113 A1 FR2234113 A1 FR 2234113A1
Authority
FR
France
Prior art keywords
cellulose
former
explosive cartridge
cartridge casing
paste
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7322722A
Other languages
French (fr)
Other versions
FR2234113B1 (en
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.)
Societe Nationale des Poudres et Explosifs
Original Assignee
Societe Nationale des Poudres et Explosifs
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 Societe Nationale des Poudres et Explosifs filed Critical Societe Nationale des Poudres et Explosifs
Priority to FR7322722A priority Critical patent/FR2234113A1/en
Publication of FR2234113A1 publication Critical patent/FR2234113A1/en
Application granted granted Critical
Publication of FR2234113B1 publication Critical patent/FR2234113B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/08—Cellulose derivatives
    • C08L1/16—Esters of inorganic acids
    • C08L1/18—Cellulose nitrate, i.e. nitrocellulose
    • 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
    • F42B5/18—Caseless ammunition; Cartridges having combustible cases
    • F42B5/188—Manufacturing processes therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

An explosive cartridge casing is formed by introducing a paste of adhesive and cellulose and intro-cellulose fibres around a perforated former arranged within a housing lined with a cylindrical flexible membrane(s) and introducing a pressure fluid between the housing wall and the membrane so that the membrane presses the paste against the former and slopes it into a sleeve. The interior, of the former is simultaneously maintained at a reduced pressure to remove volatile components from the paste. The method is used for forming the casings of gun cartridges. The casing burns completely and doesn't heave to be ejected.
FR7322722A 1973-06-21 1973-06-21 Explosive cartridge casing has cellulose and nitrocellulose fibres - and is formed by pressing against former using elastic membrane Granted FR2234113A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7322722A FR2234113A1 (en) 1973-06-21 1973-06-21 Explosive cartridge casing has cellulose and nitrocellulose fibres - and is formed by pressing against former using elastic membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7322722A FR2234113A1 (en) 1973-06-21 1973-06-21 Explosive cartridge casing has cellulose and nitrocellulose fibres - and is formed by pressing against former using elastic membrane

Publications (2)

Publication Number Publication Date
FR2234113A1 true FR2234113A1 (en) 1975-01-17
FR2234113B1 FR2234113B1 (en) 1976-09-17

Family

ID=9121358

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7322722A Granted FR2234113A1 (en) 1973-06-21 1973-06-21 Explosive cartridge casing has cellulose and nitrocellulose fibres - and is formed by pressing against former using elastic membrane

Country Status (1)

Country Link
FR (1) FR2234113A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3534021A1 (en) * 1984-09-24 1986-04-10 Société Nationale des Poudres et Explosifs, Paris METHOD FOR PRODUCING COMBUSTIBLE OBJECTS BY DEEP-DRAWING COMBUSTIBLE PAPER AND OBJECTS THEREFORE OBTAINED
US4826637A (en) * 1986-03-21 1989-05-02 Societe Nationale Des Poudres Et Explosifs Process for the manufacture of combustible articles by pressing combustible paper discs by means of a flexible punch
FR2878025A1 (en) * 2004-11-12 2006-05-19 Giat Ind Sa Medium or small caliber ammunition for e.g. aircraft, has propellant load with grain covered by sheath which is made of destructible composite material and which has reduced thickness, where sheath extends beyond front side of grain

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE48961C (en) * H. J. MEDBURY in Mechanicsville, StaatNew-York, V.St.A Press for the production of tubes from paper products
US2417375A (en) * 1942-03-06 1947-03-11 Papercrete Ltd Apparatus for producing seamless hollow bodies of felted fibrous material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE48961C (en) * H. J. MEDBURY in Mechanicsville, StaatNew-York, V.St.A Press for the production of tubes from paper products
US2417375A (en) * 1942-03-06 1947-03-11 Papercrete Ltd Apparatus for producing seamless hollow bodies of felted fibrous material

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3534021A1 (en) * 1984-09-24 1986-04-10 Société Nationale des Poudres et Explosifs, Paris METHOD FOR PRODUCING COMBUSTIBLE OBJECTS BY DEEP-DRAWING COMBUSTIBLE PAPER AND OBJECTS THEREFORE OBTAINED
US4705655A (en) * 1984-09-24 1987-11-10 Societe Nationale Des Poudres Et Explosifs Process for the manufacture of combustible articles by embossing combustible paper and combustible articles thus produced
DE3534021C2 (en) * 1984-09-24 1988-12-08 Societe Nationale Des Poudres Et Explosifs, Paris, Fr
US4826637A (en) * 1986-03-21 1989-05-02 Societe Nationale Des Poudres Et Explosifs Process for the manufacture of combustible articles by pressing combustible paper discs by means of a flexible punch
FR2878025A1 (en) * 2004-11-12 2006-05-19 Giat Ind Sa Medium or small caliber ammunition for e.g. aircraft, has propellant load with grain covered by sheath which is made of destructible composite material and which has reduced thickness, where sheath extends beyond front side of grain

Also Published As

Publication number Publication date
FR2234113B1 (en) 1976-09-17

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Legal Events

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ST Notification of lapse