FR2749382A1 - Bi-component metal used as tip for combined armour-piercing and incendiary projectile, esp. automatic cannon shell - Google Patents
Bi-component metal used as tip for combined armour-piercing and incendiary projectile, esp. automatic cannon shell Download PDFInfo
- Publication number
- FR2749382A1 FR2749382A1 FR8219218A FR8219218A FR2749382A1 FR 2749382 A1 FR2749382 A1 FR 2749382A1 FR 8219218 A FR8219218 A FR 8219218A FR 8219218 A FR8219218 A FR 8219218A FR 2749382 A1 FR2749382 A1 FR 2749382A1
- Authority
- FR
- France
- Prior art keywords
- projectile
- esp
- piercing
- tip
- metal used
- 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.)
- Withdrawn
Links
- 239000002184 metal Substances 0.000 title 1
- 230000035939 shock Effects 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 4
- 230000003111 delayed effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000002360 explosive Substances 0.000 description 4
- 230000000977 initiatory effect Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910003310 Ni-Al Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
- F42B12/44—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information of incendiary type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
Description
Utilisation d'un matériau composite à deux composants metalliques, qui sont amenés a réagir selon une réaction fortement exothermique induite par onde de choc, destiné & une partie d'un projectile,
L'invention concerne l'utilisation d'un matériau composite comprenant deux composants métalliques qui peuvent Entre amenés a reagir selon une réaction fortement exothermique induite par onde de choc, et destiné a une partie d'un projectile, et en particulier sa pointe, et de préférence pour des munitions pour armes a canon automatiques.Use of a composite material with two metallic components, which are brought to react according to a strongly exothermic reaction induced by shock wave, intended for a part of a projectile,
The invention relates to the use of a composite material comprising two metallic components which can, among other things, react according to a strongly exothermic reaction induced by shock wave, and intended for part of a projectile, and in particular its point, and preferably for ammunition for automatic cannon weapons.
Les matériaux du type mentionné sont utilisés, dans des projectiles explosifs ou des têtes de combat, pour le revAte- ment d'une surface creuse de leur charge explosive. Le projectile formé par le matériau présent en tant que garniture ou revêtement lors de la transformation détonante peut avoir un effet incendiaire apuras avoir traversé le blindage. Materials of the type mentioned are used, in explosive projectiles or in combat heads, for coating a hollow surface with their explosive charge. The projectile formed by the material present as a lining or coating during the detonating transformation can have an incendiary effect after passing through the shielding.
Le volume des pores du matériau concerne est faible. Sous l'effet de l'onde de choc détonante, on constate une coapression adiabatique accompagnée d'un fort échauffement. De ce fait, la température d'allumage nécessaire a l'amorçage de la réaction exothermique est très rapidement atteinte.The pore volume of the material concerned is low. Under the effect of the detonating shock wave, there is an adiabatic coapression accompanied by a strong heating. As a result, the ignition temperature necessary for initiating the exothermic reaction is very quickly reached.
La réunion dans un projectile de l'effet de perforation a l'effet incendiaire s'avere intéressantPdu fait de la stucture que l'on utilise de plus en plus pour des cibles volantes. Comme ces cibles fonctionnent à grande vitesse (par exemple des avions a basse altitude ou des engins volants), ou présentent une manoeuvrabilité exceptionnelle (comme c'est le cas pour les hélicoptères de combat), elles ne peuvent être combattues efficacement au moyen d'armes automatiques que lorsque les proDectlles ont une trajectoire aussi tendue que possible. The combination in a projectile of the perforation effect with the incendiary effect proves to be interesting because of the structure which is used more and more for flying targets. As these targets operate at high speed (such as low-altitude aircraft or flying devices), or exhibit exceptional maneuverability (as is the case with combat helicopters), they cannot be effectively fought using automatic weapons only when the proDectlles have as tight a trajectory as possible.
Lorsque la vitesse de départ est élevée, ceci suppose une légère diminution de vitesse que l'on peut obtenir avantageusement au moyen d'un faible coefficient CW (faible section transversale d'écoulement non perturbé) et d'une densité moyenne élevée du projectile. C'est pourquoi un projectile explosif, comprenant éventuellement une charge formant un proJectile, ne convient pas, mais seulement un projectile sous-caliré de forte densité. When the starting speed is high, this supposes a slight reduction in speed which can advantageously be obtained by means of a low coefficient CW (low cross section of undisturbed flow) and a high average density of the projectile. This is why an explosive projectile, possibly comprising a charge forming a projectile, is not suitable, but only an undershelled projectile of high density.
Le but de l'invention est de réunir dans un projectile du type mentionné l'effet de perforation à l'effet incendiaire. Ce problème est résolu en utilisant un matériau composite a deux composants métalliques qui peuvent être amenés à réagir par une réaction fortement exothermique induite par onde de choc pour une partie du projectile, et en particulier sa pointe, et de préférence lorsqu'il s'agit de munitions d'armes a canon automatiques. The object of the invention is to combine in a projectile of the type mentioned the effect of perforation with the incendiary effect. This problem is solved by using a composite material with two metallic components which can be brought to react by a strongly exothermic reaction induced by shock wave for a part of the projectile, and in particular its point, and preferably when it is ammunition for automatic cannon weapons.
Si l'on utilise le matériau pour le corps de pointe du projectile, la température d'allumage nécessaire a l'amorçage de la réaction exothermique est obtenue par l'onde de choc déterminée du côté de la pointe lors de l'impact et de la compression adiabatique des gaz inclus dans les pores. If the material for the projectile point body is used, the ignition temperature necessary for initiating the exothermic reaction is obtained by the shock wave determined on the side of the point during impact and adiabatic compression of the gases included in the pores.
Avantageusement, on peut alors ne plus utiliser de charge explosive agissant sur la densité moyenne du projectile ni de moyens pour son amorçage. La désintégration du corps de la pointe du projectile et la réaction exothermique se déroulent avantageusement selon une subordination mutuelle dans le temps qui conduit a l'effet incendiaire proposé après perforation d'une plaque externe de la cible. L'utilisation selon l'invention du matériau est par ailleurs possible pour d'autres parties du projectile en vue de l'adapter a d'autres fonctions et a d'autres structures de cibles, le matériau n'étant en d'autres termes en aucun cas limité au corps de pointe d'un projectile.Advantageously, one can then no longer use an explosive charge acting on the average density of the projectile or means for its initiation. The disintegration of the body of the point of the projectile and the exothermic reaction take place advantageously according to a mutual subordination in time which leads to the incendiary effect proposed after perforation of an external plate of the target. The use according to the invention of the material is also possible for other parts of the projectile in order to adapt it to other functions and to other target structures, the material being in other words in no case limited to the point body of a projectile.
En ce qui concerne les composants métalliques qui réagissent d'une façon fortement exothermique l'un par rapport a l'autre avec formation d'une liaison inter-métallique, on peut mentionner a titre d'exemples le Pd-Al, le Ni-Al et le
Pt-Al. On obtient alors des chaleurs allant Jusqu'à 1,5 KJ/g (la chaleur de réaction du TNT étant de 4,3 kJ/g). Une chaleur de réaction allant jusqu'à 1,5 kJ/g suffit pour échauffer Far exemple le Ni-Al au-dessus de la température de fusion qui est de 16380C.As regards the metallic components which react in a strongly exothermic manner with respect to each other with the formation of an intermetallic bond, mention may be made, by way of examples, of Pd-Al, Ni- Al and the
Pt-Al. Heat is then obtained up to 1.5 KJ / g (the TNT reaction heat being 4.3 kJ / g). A reaction heat of up to 1.5 kJ / g is sufficient to heat the example Ni-Al above the melting temperature which is 16380C.
Le volume des pores qui est nécessaire est assuré par un procédé qui n'est pas décrire ici. The volume of pores which is necessary is ensured by a process which is not described here.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3145509 | 1981-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2749382A1 true FR2749382A1 (en) | 1997-12-05 |
Family
ID=6146544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8219218A Withdrawn FR2749382A1 (en) | 1981-11-17 | 1982-11-17 | Bi-component metal used as tip for combined armour-piercing and incendiary projectile, esp. automatic cannon shell |
Country Status (6)
| Country | Link |
|---|---|
| FR (1) | FR2749382A1 (en) |
| GB (1) | GB2474824B (en) |
| IT (1) | IT8249423A0 (en) |
| PT (1) | PT75829A (en) |
| SE (1) | SE8206279L (en) |
| TR (1) | TR20994A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1780494A2 (en) * | 2005-10-04 | 2007-05-02 | Alliant Techsystems Inc. | Reactive material enhanced projectiles and related methods |
| US7977420B2 (en) | 2000-02-23 | 2011-07-12 | Alliant Techsystems Inc. | Reactive material compositions, shot shells including reactive materials, and a method of producing same |
| US8075715B2 (en) | 2004-03-15 | 2011-12-13 | Alliant Techsystems Inc. | Reactive compositions including metal |
| US8568541B2 (en) | 2004-03-15 | 2013-10-29 | Alliant Techsystems Inc. | Reactive material compositions and projectiles containing same |
| USRE45899E1 (en) | 2000-02-23 | 2016-02-23 | Orbital Atk, Inc. | Low temperature, extrudable, high density reactive materials |
| US9862027B1 (en) | 2017-01-12 | 2018-01-09 | Dynaenergetics Gmbh & Co. Kg | Shaped charge liner, method of making same, and shaped charge incorporating same |
| US10739115B2 (en) | 2017-06-23 | 2020-08-11 | DynaEnergetics Europe GmbH | Shaped charge liner, method of making same, and shaped charge incorporating same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018104333A1 (en) * | 2018-02-26 | 2019-08-29 | Rwm Schweiz Ag | Projectile with pyrotechnic active charge |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB578991A (en) * | 1941-09-15 | 1946-07-19 | Leonard De Ville Chisman | Improvements in or relating to incendiary projectiles |
| GB588671A (en) * | 1944-11-29 | 1947-05-30 | Samuel Spenceley Smith | Improvements in or relating to pyrotechnic compositions |
| NL112357C (en) * | 1960-04-11 | |||
| GB1109113A (en) * | 1963-08-06 | 1968-04-10 | Mini Of Technology | Improvements in the manufacture of cerium-magnesium alloys |
| GB1263522A (en) * | 1969-02-11 | 1972-02-09 | Walter Arthur Foges | Air-gun projectiles |
| BE755246A (en) * | 1969-09-23 | 1971-02-01 | Pacific Technica Corp | TRACING PROJECTILE |
| GB1271704A (en) * | 1969-10-13 | 1972-04-26 | Raufoss Ammunisjonsfabrikker | Projectile with multiple effect |
| GB1342093A (en) * | 1969-12-04 | 1973-12-25 | Methonics Inc | Explosive devices and methods for making them |
| BE788258A (en) * | 1971-08-31 | 1973-02-28 | France Etat | NEW COMPOSITION OF LIGHTING POWDER CONTAINING POLYTETRAFLUOROETHYLENE |
| DE2414310A1 (en) * | 1973-04-03 | 1974-10-31 | Charles Aloysius Knapp | EXPLOSIVE SUBSTANCE |
| DE2552950A1 (en) * | 1975-11-26 | 1977-06-02 | Diehl Fa | Incendiary ammunition |
| BE874505A (en) * | 1979-02-28 | 1979-08-28 | Herstal Sa | PREFRAGGED EXPLOSIVE SHELL |
-
1982
- 1982-11-04 TR TR2099482A patent/TR20994A/en unknown
- 1982-11-04 IT IT8249423A patent/IT8249423A0/en unknown
- 1982-11-04 SE SE8206279A patent/SE8206279L/en not_active Application Discontinuation
- 1982-11-04 GB GB8231185A patent/GB2474824B/en not_active Expired - Lifetime
- 1982-11-10 PT PT75829A patent/PT75829A/en unknown
- 1982-11-17 FR FR8219218A patent/FR2749382A1/en not_active Withdrawn
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9103641B2 (en) | 2000-02-23 | 2015-08-11 | Orbital Atk, Inc. | Reactive material enhanced projectiles and related methods |
| US9982981B2 (en) | 2000-02-23 | 2018-05-29 | Orbital Atk, Inc. | Articles of ordnance including reactive material enhanced projectiles, and related methods |
| US7977420B2 (en) | 2000-02-23 | 2011-07-12 | Alliant Techsystems Inc. | Reactive material compositions, shot shells including reactive materials, and a method of producing same |
| USRE45899E1 (en) | 2000-02-23 | 2016-02-23 | Orbital Atk, Inc. | Low temperature, extrudable, high density reactive materials |
| US8568541B2 (en) | 2004-03-15 | 2013-10-29 | Alliant Techsystems Inc. | Reactive material compositions and projectiles containing same |
| US8361258B2 (en) | 2004-03-15 | 2013-01-29 | Alliant Techsystems Inc. | Reactive compositions including metal |
| US8075715B2 (en) | 2004-03-15 | 2011-12-13 | Alliant Techsystems Inc. | Reactive compositions including metal |
| EP1780494A2 (en) * | 2005-10-04 | 2007-05-02 | Alliant Techsystems Inc. | Reactive material enhanced projectiles and related methods |
| US8122833B2 (en) | 2005-10-04 | 2012-02-28 | Alliant Techsystems Inc. | Reactive material enhanced projectiles and related methods |
| EP1780494A3 (en) * | 2005-10-04 | 2008-02-27 | Alliant Techsystems Inc. | Reactive material enhanced projectiles and related methods |
| US9862027B1 (en) | 2017-01-12 | 2018-01-09 | Dynaenergetics Gmbh & Co. Kg | Shaped charge liner, method of making same, and shaped charge incorporating same |
| US10376955B2 (en) | 2017-01-12 | 2019-08-13 | Dynaenergetics Gmbh & Co. Kg | Shaped charge liner and shaped charge incorporating same |
| US10739115B2 (en) | 2017-06-23 | 2020-08-11 | DynaEnergetics Europe GmbH | Shaped charge liner, method of making same, and shaped charge incorporating same |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8231185D0 (en) | 2010-04-07 |
| PT75829A (en) | 1982-12-01 |
| TR20994A (en) | 1983-03-31 |
| GB2474824B (en) | 2011-09-14 |
| IT8249423A0 (en) | 1982-11-04 |
| SE8206279L (en) | 1983-05-18 |
| SE8206279D0 (en) | 1982-11-04 |
| GB2474824A (en) | 2011-05-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse | ||
| ST | Notification of lapse |