FR2294421A1 - Thermal effects resisting combustible envelope for propellant charge - consists of plastics foam with secondary explosives - Google Patents

Thermal effects resisting combustible envelope for propellant charge - consists of plastics foam with secondary explosives

Info

Publication number
FR2294421A1
FR2294421A1 FR7537120A FR7537120A FR2294421A1 FR 2294421 A1 FR2294421 A1 FR 2294421A1 FR 7537120 A FR7537120 A FR 7537120A FR 7537120 A FR7537120 A FR 7537120A FR 2294421 A1 FR2294421 A1 FR 2294421A1
Authority
FR
France
Prior art keywords
envelope
thermal effects
propellant charge
combustible
secondary explosives
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
FR7537120A
Other languages
French (fr)
Other versions
FR2294421B1 (en
Inventor
Werner Kleger
Antoine Baumann
Jean-Claude Patedoye
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.)
Institut Franco Allemand de Recherches de Saint Louis ISL
Original Assignee
Institut Franco Allemand de Recherches de Saint Louis ISL
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 Institut Franco Allemand de Recherches de Saint Louis ISL filed Critical Institut Franco Allemand de Recherches de Saint Louis ISL
Publication of FR2294421A1 publication Critical patent/FR2294421A1/en
Application granted granted Critical
Publication of FR2294421B1 publication Critical patent/FR2294421B1/fr
Granted 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
    • F42B5/18—Caseless ammunition; Cartridges having combustible cases
    • F42B5/192—Cartridge cases characterised by the material of the casing wall
    • 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
    • C06B45/12—Compositions or products which are defined by structure or arrangement of component of product having contiguous layers or zones
    • 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
    • F42B5/192—Cartridge cases characterised by the material of the casing wall
    • F42B5/196—Coatings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Combustible sleeve for protecting sheel propellant charges against thermal effects, consists of a plastic foam with up to 80% of one or more secondary explosives. Enables propellant charges for large calibre weapons which can be fired at low rate without the need for a protective casing, to be used for automatic weapons at high firing rates. the combustible envelope may have a thickness 0.3-2.0 mm and a density 0.4-1.2 g/cm3. The envelope may have ribs of thickness twice that of the material between the ribs. A suitable wall thickness for the injection moulded envelope is 2-15 mm and the envelope may then form a container or cartridge case for the propellant charge.
FR7537120A 1974-12-12 1975-12-04 Thermal effects resisting combustible envelope for propellant charge - consists of plastics foam with secondary explosives Granted FR2294421A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742458877 DE2458877C2 (en) 1974-12-12 1974-12-12 Combustible protective cover against thermal influences for projectile propellants for automatic weapons

Publications (2)

Publication Number Publication Date
FR2294421A1 true FR2294421A1 (en) 1976-07-09
FR2294421B1 FR2294421B1 (en) 1980-07-25

Family

ID=5933280

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7537120A Granted FR2294421A1 (en) 1974-12-12 1975-12-04 Thermal effects resisting combustible envelope for propellant charge - consists of plastics foam with secondary explosives

Country Status (2)

Country Link
DE (1) DE2458877C2 (en)
FR (1) FR2294421A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012690A1 (en) * 1978-12-15 1980-06-25 Societe Nationale Des Poudres Et Explosifs Combustible objects, in particular heat-resistant combustible cartridge cases
FR2590013A1 (en) * 1985-11-12 1987-05-15 France Etat Armement PROTECTIVE VARNISH AGAINST THERMO-INITIATION OF SUNLESS OR FUEL-SLEEVE MUNITION
EP0260419A2 (en) * 1986-09-03 1988-03-23 Dynamit Nobel Aktiengesellschaft Combustible propellant cartridge case with an improved temperature resistance
FR2713756A1 (en) * 1993-12-13 1995-06-16 Rheinmetall Ind Gmbh Ammunition for fire hydrant comprising a casing with combustible propellant charge.

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2659539C1 (en) * 1976-12-30 1992-09-24 Dynamit Nobel Ag Process for the production of propellant bodies for caseless ammunition with defined porosity
DE2809279C3 (en) * 1978-03-03 1980-11-27 Deutsch-Franzoesisches Forschungsinstitut Saint-Louis, Saint-Louis (Frankreich) Propellant masses for guns
DE3927400A1 (en) * 1989-08-19 1991-02-21 Rheinmetall Gmbh Combustible propellant charge case - made of plastics shrink-foil contg. pyrotechnic mixt.
CN113154971B (en) * 2021-04-14 2023-04-07 孙建军 Heat insulation device for high-temperature blasting and blasting method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713916A (en) * 1970-07-07 1973-01-30 Hercules Inc Surface coated smokeless propellant charge for caseless ammunition having heat resistant properties
US3730094A (en) * 1970-06-12 1973-05-01 Us Army Energetic protective coating for caseless ammunition
US3747532A (en) * 1970-04-02 1973-07-24 Henry Wallengerg & Co Ab Process for the manufacture of combustible cases for fuel charges or explosive charges
US3778563A (en) * 1972-03-29 1973-12-11 Lear Siegler Inc Voice frequency repeater
FR2194306A5 (en) * 1972-07-28 1974-02-22 Poudres & Explosifs Ste Nale Propellent charge without a cartridge - for use in automatic fire-arms
DE2246588A1 (en) * 1972-09-22 1974-03-28 Bundesrep Deutschland Case-free ammunition - made from thermally stable explosive material and polyurethane foam
FR2225979A5 (en) * 1969-12-24 1974-11-08 France Etat Highly explosive composite contg. crosslinked polyurethane binder - and nitro org cpds., with high explosive content
US3847081A (en) * 1972-12-20 1974-11-12 Us Army Ammunition

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257948A (en) * 1963-08-23 1966-06-28 Axelrod Sydney Consumable artillery components
JPS4943437B1 (en) * 1970-07-23 1974-11-21

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2225979A5 (en) * 1969-12-24 1974-11-08 France Etat Highly explosive composite contg. crosslinked polyurethane binder - and nitro org cpds., with high explosive content
US3747532A (en) * 1970-04-02 1973-07-24 Henry Wallengerg & Co Ab Process for the manufacture of combustible cases for fuel charges or explosive charges
US3730094A (en) * 1970-06-12 1973-05-01 Us Army Energetic protective coating for caseless ammunition
US3713916A (en) * 1970-07-07 1973-01-30 Hercules Inc Surface coated smokeless propellant charge for caseless ammunition having heat resistant properties
US3778563A (en) * 1972-03-29 1973-12-11 Lear Siegler Inc Voice frequency repeater
FR2194306A5 (en) * 1972-07-28 1974-02-22 Poudres & Explosifs Ste Nale Propellent charge without a cartridge - for use in automatic fire-arms
DE2246588A1 (en) * 1972-09-22 1974-03-28 Bundesrep Deutschland Case-free ammunition - made from thermally stable explosive material and polyurethane foam
US3847081A (en) * 1972-12-20 1974-11-12 Us Army Ammunition

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012690A1 (en) * 1978-12-15 1980-06-25 Societe Nationale Des Poudres Et Explosifs Combustible objects, in particular heat-resistant combustible cartridge cases
FR2465990A2 (en) * 1978-12-15 1981-03-27 Poudres & Explosifs Ste Nale IMPROVEMENT TO COMBUSTIBLE OBJECTS, ESPECIALLY COMBUSTIBLE SLEEVES, RESISTANT TO HEAT
FR2590013A1 (en) * 1985-11-12 1987-05-15 France Etat Armement PROTECTIVE VARNISH AGAINST THERMO-INITIATION OF SUNLESS OR FUEL-SLEEVE MUNITION
EP0234138A1 (en) * 1985-11-12 1987-09-02 ETAT-FRANCAIS représenté par le DELEGUE GENERAL POUR L'ARMEMENT (DPAG) Protective varnish for preventing thermal ignition of ammunition without a cartridge case or with a combustible cartridge case
EP0260419A2 (en) * 1986-09-03 1988-03-23 Dynamit Nobel Aktiengesellschaft Combustible propellant cartridge case with an improved temperature resistance
EP0260419A3 (en) * 1986-09-03 1989-10-04 Dynamit Nobel Aktiengesellschaft Combustible propellant cartridge case with an improved temperature resistance
FR2713756A1 (en) * 1993-12-13 1995-06-16 Rheinmetall Ind Gmbh Ammunition for fire hydrant comprising a casing with combustible propellant charge.
BE1008935A3 (en) * 1993-12-13 1996-10-01 Rheinmetall Ind Ag Ammunition firing with bush fuel charge propulsive.

Also Published As

Publication number Publication date
DE2458877C2 (en) 1983-02-10
FR2294421B1 (en) 1980-07-25
DE2458877A1 (en) 1976-06-24

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Legal Events

Date Code Title Description
ST Notification of lapse