FR2659647A1 - Three-base propellant powder charge - Google Patents
Three-base propellant powder charge Download PDFInfo
- Publication number
- FR2659647A1 FR2659647A1 FR9102426A FR9102426A FR2659647A1 FR 2659647 A1 FR2659647 A1 FR 2659647A1 FR 9102426 A FR9102426 A FR 9102426A FR 9102426 A FR9102426 A FR 9102426A FR 2659647 A1 FR2659647 A1 FR 2659647A1
- Authority
- FR
- France
- Prior art keywords
- propellant charge
- weight
- nitroguanidine
- charge powder
- hexogen
- 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
Links
- 239000000843 powder Substances 0.000 title claims abstract description 38
- 239000003380 propellant Substances 0.000 title claims abstract description 28
- IDCPFAYURAQKDZ-UHFFFAOYSA-N 1-nitroguanidine Chemical compound NC(=N)N[N+]([O-])=O IDCPFAYURAQKDZ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000002360 explosive Substances 0.000 claims abstract description 11
- 239000000020 Nitrocellulose Substances 0.000 claims abstract description 9
- 229920001220 nitrocellulos Polymers 0.000 claims abstract description 9
- 239000000654 additive Substances 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 239000002904 solvent Substances 0.000 claims abstract description 5
- XTFIVUDBNACUBN-UHFFFAOYSA-N 1,3,5-trinitro-1,3,5-triazinane Chemical compound [O-][N+](=O)N1CN([N+]([O-])=O)CN([N+]([O-])=O)C1 XTFIVUDBNACUBN-UHFFFAOYSA-N 0.000 claims description 15
- 239000004135 Bone phosphate Substances 0.000 claims description 7
- LYAGTVMJGHTIDH-UHFFFAOYSA-N diethylene glycol dinitrate Chemical compound [O-][N+](=O)OCCOCCO[N+]([O-])=O LYAGTVMJGHTIDH-UHFFFAOYSA-N 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- GWEHVDNNLFDJLR-UHFFFAOYSA-N 1,3-diphenylurea Chemical compound C=1C=CC=CC=1NC(=O)NC1=CC=CC=C1 GWEHVDNNLFDJLR-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- SNIOPGDIGTZGOP-UHFFFAOYSA-N Nitroglycerin Chemical compound [O-][N+](=O)OCC(O[N+]([O-])=O)CO[N+]([O-])=O SNIOPGDIGTZGOP-UHFFFAOYSA-N 0.000 description 1
- 239000000006 Nitroglycerin Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- HKTSLDUAGCAISP-UHFFFAOYSA-N ethyl n,n-diphenylcarbamate Chemical compound C=1C=CC=CC=1N(C(=O)OCC)C1=CC=CC=C1 HKTSLDUAGCAISP-UHFFFAOYSA-N 0.000 description 1
- XEFYPTRGVWLMHB-UHFFFAOYSA-N ethyl n-ethyl-n-phenylcarbamate Chemical compound CCOC(=O)N(CC)C1=CC=CC=C1 XEFYPTRGVWLMHB-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229960003711 glyceryl trinitrate Drugs 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B25/00—Compositions containing a nitrated organic compound
- C06B25/34—Compositions containing a nitrated organic compound the compound being a nitrated acyclic, alicyclic or heterocyclic amine
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B25/00—Compositions containing a nitrated organic compound
- C06B25/18—Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition
- C06B25/24—Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition with nitroglycerine
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Cosmetics (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Abstract
Description
La présente invention concerne une poudre de charge propulsive tribasique contenant de la nitrocellulose, de l'huile explosive, de la nitroguanidine et des additifs. Ces poudres de charge propulsive sont connues sous le nom de poudres "froides". Par rapport aux poudres "chaudes" usuelles, qui ne contiennent pas de nitroguanidine, elles ont pour avantage de mieux ménager le tube. The present invention relates to a tribasic propellant charge powder containing nitrocellulose, explosive oil, nitroguanidine and additives. These propellant charge powders are known as "cold" powders. Compared to the usual "hot" powders, which do not contain nitroguanidine, they have the advantage of better cleaning the tube.
Une poudre de charge propulsive tribasique de ce type est caractérisée suivant l'invention par le remplacement partiel de la nitroguanidine, par de l'hexogène et par la fabrication sans utilisation de solvants. A tribasic propellant charge powder of this type is characterized according to the invention by the partial replacement of nitroguanidine, by hexogen and by manufacture without the use of solvents.
Par huiles explosives, on entend ici les huiles explosives habituellement utilisées pour les poudres de charge propulsive, notamment la nitroglycérine et le dinitrate de diglycol ainsi que les mélanges de ces huiles explosives. Pour les additifs, il s'agit des additifs habituellement utilisés dans la fabrication des poudres, notamment donc des plastifiants et stabilisants qui se trouvent en proportion relativement réduite dans le mélange de poudre. Explosive oils are understood here to mean the explosive oils usually used for propellant charge powders, in particular nitroglycerin and diglycol dinitrate as well as mixtures of these explosive oils. For the additives, these are the additives usually used in the manufacture of powders, in particular therefore plasticizers and stabilizers which are found in relatively small proportion in the powder mixture.
Mais, par rapport & une poudre de charge propulsive tribasique usuelle, de formule comparable mais qui ne contient pas d'hexogène, mais une quantité d'autant plus grande de nitroguanidine, la poudre de charge propulsive suivant l'invention présente l'avantage d'un meilleur rendement.En outre, il s'est avéré de manière surprenante que la variante suivant l'invention d'une poudre de charge propulsive tribasique, c'est- & dire le remplacement partiel de la nitroguanidine par de l'hexogène en liaison avec la fabrication dans un procédé sans solvant, conduit à abaisser le gradient de température vers les hautes températures. I1 s'agit 13 d'une caractéristique très favorable car elle implique une diminution de la dépendance de la pression, produite lors de la combustion, à l'égard de la température de la poudre de charge propulsive. However, compared with a usual tribasic propellant charge powder, of comparable formula but which does not contain hexogen, but an even greater amount of nitroguanidine, the propellant charge powder according to the invention has the advantage of In addition, it has surprisingly been found that the variant according to the invention of a powder of tribasic propellant, that is to say the partial replacement of nitroguanidine by hexogen in link with manufacturing in a solvent-free process, leads to lowering the temperature gradient towards high temperatures. This is a very favorable characteristic since it involves a reduction in the dependence of the pressure produced during combustion on the temperature of the propellant charge powder.
La fabrication sans recours & des solvants peut se faire de manière usuelle : une masse brute de poudre prémélangée, constituée de nitrocellulose mouillée - l'eau, d'huile explosive, de nitroguanidine et d'additifs et qui contient déji l'hexogène, est laminée jusqu'3 ce qu'il se forme une peau de poudre gélatineuse. Cette peau de poudre est ensuite pressée pour former des boudins de poudre qui sont coupés à longueur et éventuellement soumis encore S un traitement final. En variante, il est possible de former, en un premier temps, une peau de poudre gélatineuse par laminage de la nitrocellulose mouillée & l'eau et de l'huile explosive et de n'intégrer la nitroguanidine et l'hexogène qu'au cours d'une opération ultérieure.Ceci peut se faire par exemple par transformation de la peau en granulés et pétrissage des granulés avec la nitroguanidine et l'hexogène. The manufacture without recourse to solvents can be done in the usual way: a gross mass of premixed powder, consisting of wet nitrocellulose - water, explosive oil, nitroguanidine and additives and which already contains hexogen, is laminated until a gelatinous powder skin forms. This powder skin is then pressed to form beads of powder which are cut to length and possibly further subjected to a final treatment. As a variant, it is possible to initially form a gelatinous powder skin by rolling the wet nitrocellulose with water and the explosive oil and to integrate the nitroguanidine and the hexogen only during This can be done, for example, by transforming the skin into granules and kneading the granules with nitroguanidine and hexogen.
Une poudre de charge propulsive suivant l'invention qui est fabriquée sans recours à des solvants, présente par exemple la composition suivante nitrocellulose 34,9 + 2 % dinitrate de diéthylèneglycol 22,3 + 1,5 % nitroguanidine 32,5 + 1,5 % hexogène 7,5 + 1,5 %
Acardite II 0,8 + 0,25 %
Diphényluréthanne 0,7 + 0,2 %
Ethylphényluréthanne 0,7 + 0,2 %
Sulfate de potassium 0,3 + 0,1 %
Graphite env. 0,1 %
Oxyde de magnésium env. 0,2 %
La figure unique représente, sous forme d'un graphique, la dépendance de la combustion de cette poudre de charge propulsive (ligne en pointillés) h l'égard de la température, celle-ci étant portée sur l'axe horizontal et la vitesse de bouche obtenue, d'une part, et la pression maximale, d'autre part, étant portées sur l'axe vertical. Pour comparaison, on a représenté aussi la combustion d'une poudre de charge propulsive tribasique de série sans hexogène (ligne en trait plein). La comparaison est conçue de telle sorte que les deux poudres de charge propulsive produisent à peu près la même vitesse de bouche. On voit toutefois que ceci se produit avec la poudre de charge propulsive suivant l'invention à des pressions maximales nettement plus basses dans l'ensemble. D'où un meilleur rendement. On voit en outre que la montée de la pression maximale vers les hautes températures est nettement plus plate pour la poudre de charge propulsive suivant l'invention que pour la poudre de référence. Ceci signifie que pour une même pression d'arme maximale admissible, on peut avoir un remplissage plus important de la poudre de charge propulsive suivant l'invention et obtenir donc encore une augmentation du rendement ou que l'on peut réduire la pression d'arme maximale admissible.A propellant charge powder according to the invention which is produced without the use of solvents, has for example the following composition nitrocellulose 34.9 + 2% diethylene glycol dinitrate 22.3 + 1.5% nitroguanidine 32.5 + 1.5 % hexogen 7.5 + 1.5%
Acardite II 0.8 + 0.25%
Diphenylurethane 0.7 + 0.2%
Ethylphenylurethane 0.7 + 0.2%
Potassium sulfate 0.3 + 0.1%
Graphite approx. 0.1%
Magnesium oxide approx. 0.2%
The single figure represents, in the form of a graph, the dependence of the combustion of this propellant charge powder (dotted line) on the temperature, the latter being carried on the horizontal axis and the speed of mouth obtained, on the one hand, and the maximum pressure, on the other hand, being carried on the vertical axis. For comparison, there is also shown the combustion of a tribasic propellant charge powder of series without hexogen (solid line). The comparison is designed so that the two propellant charge powders produce about the same muzzle velocity. It can however be seen that this occurs with the propellant charge powder according to the invention at significantly lower maximum pressures overall. Hence a better yield. It can also be seen that the rise in maximum pressure towards high temperatures is significantly flatter for the propellant charge powder according to the invention than for the reference powder. This means that for the same maximum allowable weapon pressure, it is possible to have a greater filling of the propellant charge powder according to the invention and therefore obtain a further increase in yield or that the weapon pressure can be reduced. maximum allowable.
Suivant l'invention, on a imaginé aussi de supprimer totalement la nitroguanidine dans une poudre de charge propulsive tribasique du type précité et de la remplacer dans sa totalité par de l'hexogène. Dans ce cas, on aura une proportion d'hexogène pouvant atteindre 50 % en poids. According to the invention, it has also been imagined to completely remove the nitroguanidine in a tribasic propellant charge powder of the aforementioned type and to replace it in its entirety with hexogen. In this case, there will be a proportion of hexogen which can reach 50% by weight.
Claims (9)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4008562 | 1990-03-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2659647A1 true FR2659647A1 (en) | 1991-09-20 |
| FR2659647B3 FR2659647B3 (en) | 1993-08-20 |
Family
ID=6402417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR919102426A Expired - Lifetime FR2659647B3 (en) | 1990-03-16 | 1991-02-28 | TRIBASIC PROPULSIVE CHARGING POWDER. |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2659647B3 (en) |
| IT (1) | IT1249083B (en) |
-
1991
- 1991-02-26 IT ITBZ910002A patent/IT1249083B/en active IP Right Grant
- 1991-02-28 FR FR919102426A patent/FR2659647B3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ITBZ910002A0 (en) | 1991-02-26 |
| IT1249083B (en) | 1995-02-11 |
| FR2659647B3 (en) | 1993-08-20 |
| ITBZ910002A1 (en) | 1992-08-26 |
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