EP1031548A1 - Process for producing single, double or triple base propellant powders for ammunition for barrelled weapons - Google Patents

Process for producing single, double or triple base propellant powders for ammunition for barrelled weapons Download PDF

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EP1031548A1
EP1031548A1 EP99125608A EP99125608A EP1031548A1 EP 1031548 A1 EP1031548 A1 EP 1031548A1 EP 99125608 A EP99125608 A EP 99125608A EP 99125608 A EP99125608 A EP 99125608A EP 1031548 A1 EP1031548 A1 EP 1031548A1
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energetic
dinitrate
nena
powders
powder
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German (de)
French (fr)
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EP1031548B1 (en
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Ulrike Jeck-Prosch
Ursula Seffner-Lehner
Peter Dr. Lange
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Nitrochemie Aschau GmbH
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Nitrochemie Aschau GmbH
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    • 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
    • C06B45/18—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
    • C06B21/0083—Treatment of solid structures, e.g. for coating or impregnating with a modifier

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  • the invention relates to a method for producing one, two or three-base propellant powders for gun ammunition according to the features of the preamble of the claim 1.
  • two or three-base propellant powders for gun ammunition such as powders made of nitrocellulose, nitric acid esters (e.g. nitroglycerin, diethylene glycol dinitrate, Butane triol trinitrate, metriol trinitrate, triethylene glycol dinitrate), Alkylnitratoethylnitramine, nitroguanidine, hexogen, Oktogen 3-nitro-1,2,4-triazol-5-one (NTO), hexanitrohexaazaiso-wurtzitan (CL20) or mixtures of such powders or such powders provided with additives (e.g.
  • DE 33 46 287 A1 is a propellant charge known, by mixing homogeneous with inhomogeneous Powder proportions have an approximately constant burning behavior in the area around the main usage temperature is achieved.
  • a disadvantage of this known propellant powder however, among other things, that the homogeneous and inhomogeneous powder components are very precisely coordinated have to be. Otherwise you get propellant powder, which have different shooting behavior from lot to lot.
  • the present invention is based on the object Specify processes for the production of propellant powder, in which the maximum pressure curve is flattened in a simple manner in the temperature range for which the weapon is intended is achieved.
  • the invention is essentially based on the idea of conventional ones one-, two- or three-base powder with special Surface treatment of desensitizers, being only Desensitizers are used that have no or at most have a low tendency to migrate.
  • the desensitizers according to the invention are inert or energetic polymers or large-volume monomers, that practically do not migrate, as well as energetic monomolecular Substances or mixtures of both components, to reduce energy loss to a level that no significant loss of performance when firing at weapons.
  • the surface treatment of the propellant powder can in be done in a known manner, the desensitizers in sprayed onto a treatment drum as a solution or as an emulsion or with the help of an impregnation process, in which the Propellant powder in the treatment solution for a certain period of time is incubated, applied.
  • the propellant powder (TLP), on which the surface treatment according to the invention is to be carried out, is the double-base TLP L 5460 introduced for 120 mm KE ammunition, which has the following composition: nitrocellulose 59.5% nitroglycerin 14.9% diethylene glycol 24.8% Acardite II 0.7% Others 0.1%
  • TLP propellant powder
  • SLP surface treatment will be carried out in turn based on the two-base TLP L 5460 described above.
  • the Treatment with 1.5% of the polymer takes place in a rotating Treatment drum at 45 ° C.
  • Spread over four servings the emulsion becomes successive over a period of five hours added while the solvent evaporates.
  • 3 and 4 are the bombardment results of this powder in a 40 mm simulator from -40 to + 63 ° C compared to one untreated L 5460 shown.
  • Here again are the maximum pressure and the muzzle velocity depending plotted by temperature.
  • a single-base 7-hole TLP C / M 0800 with nitrocellulose manufactured as an energy source and Centralit I as a stabilizer was in an emulsion of nitroglycerin Water in a rotating drum at 30 ° C until clear incubated the solution.
  • the powder is then subjected to a second treatment in a Palamoll 632 emulsion subjected to water.
  • the desensitizer 1 bears on the surface 2 of the respective powder grain denoted by 3 in FIGS. 7-9.
  • the inner holes 4 of the TLP also become partial (Fig. 8) or completely (Fig. 9) covered by the desensitizer 1 or can even be completely closed by the desensitizer become.
  • This coating of the propellant particles 1 the desired change of the Burning behavior of the propellant powder and thus to the observed reduction in the temperature gradient.
  • the method can be used for both known 1-, 7- and 19-hole TLPs with cylindrical as well as with hexagonal or rosette-shaped External geometry can be applied.
  • the powder which has been surface-treated according to the invention compared to the untreated propellant powder Composition a reduced sensitivity to special loads, such as those at hostile fire may occur.

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  • Crystallography & Structural Chemistry (AREA)
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  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
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Abstract

Production of a mono-, di- or tribasic gun propellant powder comprises subjecting particles of a conventional propellant powder, comprising nitrocellulose, nitrate esters, alkyl nitratoethyl nitramines, nitroguanidine, hexogen, octogen, 3-nitro-1,2,4-triazol-5-one and/or hexanitrohexaazaisowurtzitan, to surface treatment with inert or energetic polymers and/or energetic monomeric plasticizers.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von ein-, zwei- oder dreibasigen Treibladungspulvern für Rohrwaffenmunition nach den Merkmalen des Oberbegriffs des Patentanspruchs 1.The invention relates to a method for producing one, two or three-base propellant powders for gun ammunition according to the features of the preamble of the claim 1.

Bei üblichen ein-, zwei- oder dreibasigen Treibladungspulvern für Rohrwaffenmunition, wie Pulvern aus Nitrocellulose, Salpetersäureester (z.B. Nitroglycerin, Diethylenglykoldinitrat, Butantrioltrinitrat, Metrioltrinitrat, Triethylenglykoldinitrat), Alkylnitratoethylnitramine, Nitroguanidin, Hexogen, Oktogen 3-Nitro-1,2,4-Triazol-5-on (NTO), Hexanitrohexaazaiso-wurtzitan (CL20) oder Mischungen derartiger Pulver bzw. mit Zusätzen (z.B. Stabilisatoren) versehenen derartigen Pulvern, hängt der beim Schuß auftretende Maximaldruck der Abbrandkurve sowie die Mündungsgeschwindigkeit des entsprechenden Geschosses wesentlich von der Umgebungstemperatur der entsprechenden Waffe ab. Da sich die Auslegung der jeweiligen Waffe nach dem größten Maximaldruck richtet, der innerhalb des Temperaturbereiches, für welchen die Waffe bestimmt ist, (z.B. -40°C bis 60°C) vorkommt, und dieser Druck in der Regel nicht im Bereich der Hauptgebrauchstemperatur (21°C) liegt, wird die theoretisch mögliche Leistung der jeweiligen Waffe in der Regel (d.h. beim Schießen bei der Hauptgebrauchstemperatur) nicht ausgeschöpft.With conventional one, two or three-base propellant powders for gun ammunition, such as powders made of nitrocellulose, nitric acid esters (e.g. nitroglycerin, diethylene glycol dinitrate, Butane triol trinitrate, metriol trinitrate, triethylene glycol dinitrate), Alkylnitratoethylnitramine, nitroguanidine, hexogen, Oktogen 3-nitro-1,2,4-triazol-5-one (NTO), hexanitrohexaazaiso-wurtzitan (CL20) or mixtures of such powders or such powders provided with additives (e.g. stabilizers), depends on the maximum pressure of the burn-up curve that occurs during the shot as well as the muzzle velocity of the corresponding Projectile significantly from the ambient temperature of the appropriate weapon. Because the interpretation of each Gun aimed at the maximum maximum pressure inside the temperature range for which the weapon is intended, (e.g. -40 ° C to 60 ° C) occurs, and this pressure usually is not in the range of the main service temperature (21 ° C), becomes the theoretically possible performance of the respective weapon usually (i.e. when shooting at the main usage temperature) not exhausted.

Es hat in der Vergangenheit nicht an Versuchen gefehlt, Treibladungspulver zu entwickeln, bei denen der Temperaturverlauf des Maximaldruckes einen relativ flachen Verlauf aufweist, so daß die Waffe sich in einem möglichst großen Temperaturbereich ihrer theoretischen Leistung annähert.There has been no lack of attempts in the past Develop propellant powder in which the temperature curve of the maximum pressure a relatively flat course has, so that the weapon is as large as possible Temperature range approximates their theoretical performance.

So ist beispielsweise aus der DE 33 46 287 A1 eine Treibladung bekannt, bei der durch Mischung von homogenen mit inhomogenen Pulveranteilen ein in etwa konstantes Abbrennverhalten im Bereich um die Hauptgebrauchstemperatur herum erzielt wird. Nachteilig ist bei diesem bekannten Treibladungspulver allerdings unter anderem, daß die homogenen und inhomogenen Pulveranteile sehr genau aufeinander abgestimmt sein müssen. Anderenfalls erhält man Treibladungspulver, welche von Los zu Los ein unterschiedliches Schußverhalten aufweisen.For example, DE 33 46 287 A1 is a propellant charge known, by mixing homogeneous with inhomogeneous Powder proportions have an approximately constant burning behavior in the area around the main usage temperature is achieved. A disadvantage of this known propellant powder however, among other things, that the homogeneous and inhomogeneous powder components are very precisely coordinated have to be. Otherwise you get propellant powder, which have different shooting behavior from lot to lot.

Aus der DE 25 20 882 C1 ist es bekannt, den bei herkömmlichen Treibladungspulvern in der Regel positiven Temperaturgradienten (d.h. Zunahme des Maximaldruckes mit zunehmender Umgebungstemperatur) im Bereich der Hauptgebrauchstemperatur dadurch abzuflachen, daß die Pulverkörner des Treibladungspulvers Innenkanäle mit unterschiedlichen Querschnitten aufweisen. Auch dieses Treibladungspulver weist den Nachteil auf, daß es relativ aufwendig herstellbar ist.From DE 25 20 882 C1 it is known that in conventional Propellant powders generally have positive temperature gradients (i.e. increase in maximum pressure with increasing ambient temperature) in the area of the main service temperature flatten that the powder grains of the propellant powder Have inner channels with different cross sections. This propellant charge powder also has the disadvantage that that it is relatively expensive to manufacture.

Aus dem Buch: J. Köhler, R. Meyer "Explosivstoffe", VCH Verlagsgesellschaft mbH, Weinheim, 7. überarbeitete und erweiterte Auflage, S.233 f, ist ferner bekannt, zur Abflachung des Maximaldruckes der Abbrandkurve herkömmlicher Treibladungspulver diese Pulver zusätzlich einer Oberflächenbehandlung mittels den Abbrand verlangsamender (phlegmatisierender) Stoffe zu unterziehen. Als phlegmatisierende Stoffe werden dabei nicht energetische monomolekulare Substanzen wie Phthalate (Dibutylphthalat), Harnstoffe (Centralit) oder Kampfer verwendet.From the book: J. Köhler, R. Meyer "Explosivstoffe", VCH Verlagsgesellschaft mbH, Weinheim, 7th revised and expanded Edition, p.233 f, is also known for flattening the maximum pressure of the combustion curve of conventional propellant powder these powders also have a surface treatment by means of slowing down (phlegmatizing) Undergo fabrics. As a desensitizing substances non-energetic monomolecular substances such as phthalates (Dibutyl phthalate), urea (centralite) or camphor used.

Als nachteilig hat sich erwiesen, daß die vorstehend erwähnten phlegmatisierenden Stoffe den Energieinhalt des Treibladungspulvers absenken und eine deutliche Reduzierung der Leistung gegenüber den Werten des jeweils unbehandelten Pulvers bewirken. Außerdem neigen diese Substanzen teilweise (insbesondere z.B. Phthalate) zur Migration in das Treibladungspulver und beeinträchtigen deren ballistische Wirkungen in unerwünschter Weise.It has been found to be disadvantageous that the aforementioned desensitizing substances the energy content of the propellant powder lower and a significant reduction in performance compared to the values of the respectively untreated powder cause. In addition, some of these substances tend (in particular e.g. Phthalates) for migration into the propellant powder and affect their ballistic effects in an undesirable way.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung von Treibladungspulver anzugeben, bei dem auf einfache Weise eine Abflachung der Maximaldruckkurve in dem Temperaturbereich, für welchen die Waffe bestimmt ist, erreicht wird.The present invention is based on the object Specify processes for the production of propellant powder, in which the maximum pressure curve is flattened in a simple manner in the temperature range for which the weapon is intended is achieved.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. Besonders vorteilhafte Ausgestaltungen der Erfindung offenbaren die Unteransprüche.This object is achieved by the features of the claim 1 solved. Particularly advantageous embodiments of the Invention disclose the subclaims.

Der Erfindung liegt im wesentlichen der Gedanke zugrunde, übliche ein-, zwei- oder dreibasige Pulver mit speziellen Phlegmatisatoren oberflächenzubehandeln, wobei nur Phlegmatisatoren zum Einsatz kommen, die keine oder allenfalls nur eine geringe Neigung zur Migration aufweisen.The invention is essentially based on the idea of conventional ones one-, two- or three-base powder with special Surface treatment of desensitizers, being only Desensitizers are used that have no or at most have a low tendency to migrate.

Bei den erfindungsgemäßen Phlegmatisatoren handelt es sich um inerte oder energetische Polymere oder großvolumige Monomere, die praktisch nicht migrieren, sowie um energetische monomolekulare Substanzen oder um Mischungen aus beiden Komponenten, um den Energieverlust auf ein Maß zu reduzieren, das beim Waffenbeschuß keine nennenswerten Leistungseinbußen bewirkt.The desensitizers according to the invention are inert or energetic polymers or large-volume monomers, that practically do not migrate, as well as energetic monomolecular Substances or mixtures of both components, to reduce energy loss to a level that no significant loss of performance when firing at weapons.

Die Oberflächenbehandlung der Treibladungspulver kann in an sich bekannter Weise erfolgen, wobei die Phlegmatisatoren in einer Behandlungstrommel als Lösung oder als Emulsion aufgesprüht bzw. mit Hilfe eines Imprägnierverfahrens, bei dem das Treibladungspulver über einen bestimmten Zeitraum in der Behandlungslösung inkubiert wird, aufgebracht werden.The surface treatment of the propellant powder can in be done in a known manner, the desensitizers in sprayed onto a treatment drum as a solution or as an emulsion or with the help of an impregnation process, in which the Propellant powder in the treatment solution for a certain period of time is incubated, applied.

Folgende Substanzen haben sich als besonders vorteilhaft erwiesen, die einzeln oder als Mischungen zur Anwendung kommen:

  • nicht energetische Polyester, Polyether, Polybutadiene, Polyurethane, Polyamide, Celluloseester (z.B. Celluloseacetat, Celluloseacetobutyrat, Cellulosepropionat);
  • energetische Polymere (z.B. Polyglyzidylnitrat, Poly-Nimmo, Polyglyzidylazid);
  • Alkylnitratoethylnitramine (z.B. Methyl-NENA, Ethyl-NENA, Butyl-NENA);
  • Dinitrodiazaalkane
  • Salpetersäureester (z.B. Diethylenglykoldinitrat, Nitroglycerin, Butantrioltrinitrat, Triethylenglykoldinitrat, Metrioltrinitrat);
  • Bis (2.2-Dinitropropyl) Acetal/Formal (BDNPA/F).
The following substances, which are used individually or as mixtures, have proven particularly advantageous:
  • non-energetic polyesters, polyethers, polybutadienes, polyurethanes, polyamides, cellulose esters (eg cellulose acetate, cellulose acetobutyrate, cellulose propionate);
  • energetic polymers (eg polyglyzidyl nitrate, poly-nimmo, polyglyzidyl azide);
  • Alkylnitratoethylnitramine (e.g. methyl-NENA, ethyl-NENA, butyl-NENA);
  • Dinitrodiazaalkane
  • Nitric acid esters (eg diethylene glycol dinitrate, nitroglycerin, butane triol trinitrate, triethylene glycol dinitrate, metriol trinitrate);
  • Bis (2,2-dinitropropyl) acetal / formal (BDNPA / F).

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den folgenden anhand von Figuren erläuterten Ausführungsbeispielen. Es zeigen:

Fig.1 und 2
die Abhängigkeit des Maximaldruckes sowie der Mündungsgeschwindigkeit von der Umgebungstemperatur eines ersten Treibladungspulvers mit und ohne erfindungsgemäße Oberflächenbehandlung;
Fig.3 und 4
die in Fig.1 dargestellten Temperaturabhängigkeiten von Maximaldruck und Mündungsgeschwindigkeit für ein zweites Treibladungspulver;
Fig.5 und 6
die in Fig.1 dargestellten Temperaturabhängigkeiten von Maximaldruck und Mündungsgeschwindigkeit für ein drittes Treibladungspulver;
Fig.7
die Draufsicht auf ein oberflächenbehandeltes Pulverkorn;
Fig.8
einen Längsschnitt durch das in Fig.7 dargestellte Pulverkorn entlang der dort mit VIII-VIII bezeichneten Schnittlinie und
Fig.9
einen Fig.8 entsprechenden Längsschnitt für ein weiteres Ausführungsbeispiel.
Further details and advantages of the invention result from the following exemplary embodiments explained with reference to figures. Show it:
Fig. 1 and 2
the dependence of the maximum pressure and the muzzle velocity on the ambient temperature of a first propellant powder with and without the surface treatment according to the invention;
Fig. 3 and 4
the temperature dependencies of maximum pressure and muzzle velocity shown in Figure 1 for a second propellant charge powder;
Fig. 5 and 6
the temperature dependencies of maximum pressure and muzzle velocity shown in Figure 1 for a third propellant powder;
Figure 7
the top view of a surface-treated powder grain;
Figure 8
a longitudinal section through the powder grain shown in Figure 7 along the section line designated VIII-VIII and
Figure 9
a longitudinal section corresponding to Figure 8 for a further embodiment.

Beispiel 1:Example 1:

Bei dem Treibladungspulver (TLP), bei dem die erfindungsgemäße Oberflächenbehandlung durchgeführt werden soll, handelt es sich um das für 120 mm KE-Munition eingeführte zweibasige TLP L 5460, das folgende Zusammensetzung aufweist: Nitrocellulose 59.5 % Nitroglycerin 14.9 % Diethylenglykoldinitrat 24.8 % Akardit II 0.7 % Sonstiges 0.1 % The propellant powder (TLP), on which the surface treatment according to the invention is to be carried out, is the double-base TLP L 5460 introduced for 120 mm KE ammunition, which has the following composition: nitrocellulose 59.5% nitroglycerin 14.9% diethylene glycol 24.8% Acardite II 0.7% Others 0.1%

Eine 4 %ige ethanolische Lösung von Ethyl-NENA wird in vier Raten in einer konventionellen Behandlungstrommel auf das TLP L 5460 aufgesprüht. Das oberflächenbehandelte Pulver wird getrocknet und im Anschluß verschiedenen Beschußuntersuchungen unterzogen.A 4% ethanolic solution from Ethyl-NENA comes in four Guess the TLP in a conventional treatment drum L 5460 sprayed on. The surface-treated powder is dried and afterwards various bullet tests subjected.

Die Fig.1 und 2 zeigen das Ergebnis des Temperaturbeschusses in einem 40 mm Simulator (Kurve a)) im Vergleich zu einem unbehandelten L 5460 (Kurve b)). Dabei sind jeweils der Maximaldruck (Pmax) der Abbrandkurve und die Mündungsgeschwindigkeit (vo ) als Funktion der Temperatur aufgetragen.1 and 2 show the result of the temperature bombardment in a 40 mm simulator (curve a)) compared to an untreated L 5460 (curve b)). The maximum pressure (P max ) of the burnup curve and the muzzle velocity (v o ) are plotted as a function of the temperature.

Die Ergebnisse zeigen in dem Temperaturbereich zwischen 21°C und 63°C einen deutlich abgeflachten Temperaturverlauf des Maximaldruckes und der Mündungsgeschwindigkeit des oberflächenbehandelten L 5460 gegenüber dem unbehandelten Pulver. The results show in the temperature range between 21 ° C and 63 ° C a clearly flattened temperature curve of the Maximum pressure and the muzzle velocity of the surface treated L 5460 compared to the untreated powder.

Beispiel 2:Example 2:

Als Treibladungspulver (TLP), bei dem die erfindungsgemäße Oberflächenbehandlung durchgeführt werden soll, wird wiederum von dem vorstehend beschriebenen zweibasigen TLP L 5460 ausgegangen.As propellant powder (TLP), in which the invention Surface treatment will be carried out in turn based on the two-base TLP L 5460 described above.

Anschließend wird Palamoll 632, ein Polyester aus Adipinsäure und 1,2-Propandiol, in ethanolischer Emulsion (Palamoll: EtOH = 1 : 3) auf die Oberfläche von L 5460-TLP aufgebracht. Die Behandlung mit 1,5 % des Polymeren erfolgt in einer rotierenden Behandlungstrommel bei 45°C. Verteilt auf vier Portionen wird die Emulsion über einen Zeitraum von fünf Stunden sukzessive zugegeben, während gleichzeitig das Solvens verdampft.Then Palamoll 632, a polyester made from adipic acid and 1,2-propanediol, in ethanolic emulsion (Palamoll: EtOH = 1: 3) applied to the surface of L 5460-TLP. The Treatment with 1.5% of the polymer takes place in a rotating Treatment drum at 45 ° C. Spread over four servings the emulsion becomes successive over a period of five hours added while the solvent evaporates.

Parallel wird mehrfach Graphit zugeschlagen, um ein Verkleben der Körner zu verhindern.At the same time, graphite is added several times to make it stick together to prevent the grains.

In den Fig.3 und 4 sind die Beschußergebnisse dieses Pulvers in einem 40 mm Simulator von -40 bis +63°C gegenüber einem unbehandelten L 5460 dargestellt. Dabei sind wiederum der Maximaldruck und die Mündungsgeschwindigkeit in Abhängigkeit von der Temperatur aufgetragen.3 and 4 are the bombardment results of this powder in a 40 mm simulator from -40 to + 63 ° C compared to one untreated L 5460 shown. Here again are the maximum pressure and the muzzle velocity depending plotted by temperature.

Auch in diesem Fall läßt sich gegenüber dem unbehandelten TLP (Kurve b)) gleicher Zusammensetzung und Abmessungen eine deutliche Abflachung der Druck- und Geschwindigkeitskurven zwischen 21°C und +63°C feststellen (Kurve a)).In this case too, compared to the untreated TLP (Curve b)) same composition and dimensions significant flattening of the pressure and speed curves between 21 ° C and + 63 ° C (curve a)).

In der folgenden Tabelle 1 ist die spezifische Energie für die in den vorstehend erwähnten beiden Ausführungsbeispielen beschriebenen Pulver wiedergegeben. Behandlung Spez.Energie [J/g] L 5460 1165 Beispiel 4 % Ethyl-NENA 1165 Beispiel 1.5 % Polyester 1145 The following table 1 shows the specific energy for the powders described in the two exemplary embodiments mentioned above. treatment Specific energy [Y / g] L 5460 1165 example 4% ethyl-NENA 1165 example 1.5% polyester 1145

Die Werte für die spezifische Energie zeigen, daß die erfindungsgemäßen Verfahren zu keiner bzw. keiner wesentlichen Leistungseinbuße der Treibladungspulver führen.The values for the specific energy show that the inventive Procedures for none or none at all Loss of performance of the propellant powder.

Beispiel 3:Example 3:

Ein einbasiges 7-Loch-TLP C/M 0800, das mit Nitrocellulose als Energieträger und Centralit I als Stabilisator hergestellt wurde, wird in einer Emulsion von Nitroglycerin in Wasser in einer rotierenden Trommel bei 30°C bis zum Aufklaren der Lösung inkubiert.A single-base 7-hole TLP C / M 0800 with nitrocellulose manufactured as an energy source and Centralit I as a stabilizer was in an emulsion of nitroglycerin Water in a rotating drum at 30 ° C until clear incubated the solution.

Anschließend wird das Pulver einer zweiten Behandlung in einer Emulsion aus Palamoll 632 in Wasser unterzogen.The powder is then subjected to a second treatment in a Palamoll 632 emulsion subjected to water.

Auf diese Weise wurden 10 % Nitroglycerin und 2 % Palamoll aufgebracht.In this way 10% nitroglycerin and 2% palamoll applied.

Die Fig.5 und 6 zeigen die Ergebnisse eines Waffenbeschusses mit diesem Pulver in einer 35 mm Üb-Munition (Kurve a)) im Vergleich zu einem dort üblicherweise verwendeten einbasigen TLP B 6320 (Kurve b)). 5 and 6 show the results of a gun bombardment with this powder in a 35 mm practice ammunition (curve a)) in Comparison to a single-base that is usually used there TLP B 6320 (curve b)).

Während das konventionelle einbasige Treibladungspulver B 6320 zwischen 21°C und 70°C einen hohen Druck- und Geschwindigkeitsanstieg zeigt, deutet sich bei dem behandelten C/M 0800 im Bereich zwischen 21°C und 52°C eine Reduzierung des Temperaturgradienten an, so daß man mit derart behandelten Pulver voraussichtlich auch im Mittelkaliberbereich eine deutliche Leistungssteigerung gegenüber dem konventionellen TLP erzielen kann.While the conventional single-base propellant powder B 6320 a high pressure and speed increase between 21 ° C and 70 ° C shows, indicates in the treated C / M 0800 in the range between 21 ° C and 52 ° C a reduction of the temperature gradient, so that you treated with such Powder is also expected to be in the medium caliber range significant increase in performance over the conventional Can achieve TLP.

Wie mikroskopische Untersuchungen und Überprüfungen in einer ballistischen Bombe mittels Abbrandunterbrechung gezeigt haben, lagert sich der Phlegmatisator 1 an der Oberfläche 2 des jeweiligen in den Fig.7-9 mit 3 bezeichneten Pulverkorns ab. Außerdem werden auch die Innenlöcher 4 des TLPs teilweise (Fig.8) oder vollständig (Fig.9) von dem Phlegmatisator 1 bedeckt bzw. können durch den Phlegmatisator sogar ganz verschlossen werden. Durch diese Beschichtung der Treibladungskörner 1 kommt es vermutlich zu der gewünschten Änderung des Abbrandverhaltens des Treibladungspulvers und somit zu der beobachteten Reduktion des Temperaturgradienten.Like microscopic examinations and reviews in one have shown the ballistic bomb by means of an interruption to the burn, the desensitizer 1 bears on the surface 2 of the respective powder grain denoted by 3 in FIGS. 7-9. In addition, the inner holes 4 of the TLP also become partial (Fig. 8) or completely (Fig. 9) covered by the desensitizer 1 or can even be completely closed by the desensitizer become. This coating of the propellant particles 1, the desired change of the Burning behavior of the propellant powder and thus to the observed reduction in the temperature gradient.

Das Verfahren kann für bekannte 1-, 7- und 19-Loch-TLP sowohl mit zylindrischer als auch mit hexagonaler oder rosettenförmiger Außengeometrie angewendet werden.The method can be used for both known 1-, 7- and 19-hole TLPs with cylindrical as well as with hexagonal or rosette-shaped External geometry can be applied.

Außerdem weist das erfindungsgemäß oberflächenbehandelte Pulver im Vergleich zum unbehandelten Treibladungspulver gleicher Zusammensetzung eine reduzierte Empfindlichkeit gegenüber speziellen Belastungen auf, wie sie beispielsweise bei einem feindlichen Beschuß auftreten können.In addition, the powder which has been surface-treated according to the invention compared to the untreated propellant powder Composition a reduced sensitivity to special loads, such as those at hostile fire may occur.

Claims (6)

Verfahren zur Herstellung von ein-, zwei- oder dreibasigen Treibladungspulvern für Rohrwaffenmunition, wobei an sich bekannte ein-, zwei- oder dreibasige Treibladungspulver, die folgende Bestandteile als Energieträger enthalten: Nitrocellulose, Salpetersäureester, Alkylnitratoethylnitramine, Nitroguanidin, Hexogen, Oktogen 3-Nitro-1,2,4-Triazol-5-on (NTO), Hexanitrohexaazaisowurtzitan (CL20) oder Mischungen derartiger Pulver, mit Hilfe phlegmatisierender Stoffe oberflächenbehandelt werden, dadurch gekennzeichnet, daß die Oberflächenbehandlung des jeweiligen Treibladungspulvers mit Hilfe inerter oder energetischer Polymere bzw. mit Hilfe energetischer monomerer Weichmacher oder mit Hilfe von Mischungen aus beiden Komponenten vorgenommen wird.Process for the production of one-, two- or three-base propellant powders for gun ammunition, known per se known single-, two- or three-base propellant powders which contain the following constituents as energy carriers: nitrocellulose, nitric acid esters, alkylnitratoethylnitramine, nitroguanidine, hexogen, octogen 3-nitro- 1,2,4-triazol-5-one (NTO), hexanitrohexaazaisowurtzitan (CL20) or mixtures of such powders are surface-treated with the aid of desensitizing substances, characterized in that the surface treatment of the propellant powder in question is carried out with the aid of inert or energetic polymers or with the aid energetic monomeric plasticizer or with the help of mixtures of both components. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als Polymere inerte oder energetische Polyester, Polyether, Polyurethane, Polyharnstoffe, Polybutadiene oder Polyamide verwendet werden.Process according to claim 1, characterized in that inert or energetic polyesters, polyethers, polyurethanes, polyureas, polybutadienes or polyamides are used as polymers. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß als energetische Polymere Poly-3-nitratomethyl-3-methyloxetan (PolyNIMMO), Polyglyzidylnitrat /Poly-Glyn) oder Polyglyzidylazid (GAP) verwendet werden. Process according to Claim 1 or 2, characterized in that poly-3-nitratomethyl-3-methyloxetane (PolyNIMMO), polyglyzidyl nitrate / Poly-Glyn) or polyglyzidyl azide (GAP) are used as the energetic polymers. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß als energetische Weichmacher Alkylnitratoethylnitramine (Methyl-NENA, Ethyl-NENA, Butyl-NENA) und Salpetersäureester (Nitroglycerin, Diethylglykoldinitrat, Triethylenglykoldinitrat, Butantrioltrinitrat, Methrioltrinitrat) und Bis (2.2-Dinitropropyl) Acetal-Formal (BDNPA-F) Dinitrodiazealkane bzw. Mischungen dieser Substanzen verwendet werden.Process according to one of claims 1 to 3, characterized in that the energetic plasticizers are alkylnitratoethylnitramine (methyl-NENA, ethyl-NENA, butyl-NENA) and nitric acid ester (nitroglycerin, diethylglycol dinitrate, triethylene glycol dinitrate, butane triol trinitrate, methrioltrinyl dinitrate) and bishrioltrinyl dinitrate) Acetal-Formal (BDNPA-F) Dinitrodiazealkane or mixtures of these substances can be used. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Oberflächenbehandlungsmittel in Lösung oder als Emulsion durch Aufsprühen in einer rotierenden Trommel oder Inkubation in einer Imprägnierlösung erfolgt.Method according to one of claims 1 to 4, characterized in that the surface treatment agent is carried out in solution or as an emulsion by spraying in a rotating drum or incubation in an impregnation solution. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß bei gemeinsamer Verwendung der polymeren Bestandteile und der monomeren energetischen Weichmacher die Oberflächenbehandlung sowohl durch Aufbringen einer Mischung beider Komponenten oder durch eine zweistufige Behandlung nacheinander aufgebracht werden.Method according to one of claims 1 to 5 , characterized in that when the polymeric constituents and the monomeric energetic plasticizers are used together, the surface treatment is applied in succession either by applying a mixture of the two components or by a two-stage treatment.
EP99125608A 1999-02-24 1999-12-22 Process for producing single, double or triple base propellant powders for ammunition for barrelled weapons Expired - Lifetime EP1031548B1 (en)

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EP1164116A1 (en) * 2000-06-15 2001-12-19 Nitrochemie Wimmis AG Process for producing a functional high-energy material
EP1241152A1 (en) * 2001-03-13 2002-09-18 Nitrochemie Wimmis AG Temperature-insensitive propellant powder
EP1241151A1 (en) * 2001-03-13 2002-09-18 Nitrochemie Wimmis AG Temperature-insensitive propellant powder
US7051658B2 (en) 2001-03-13 2006-05-30 Nitrochemie Wimmis Ag Temperature-independent propellant powder
EP1568673A1 (en) * 2002-11-22 2005-08-31 Nippon Kayaku Kabushiki Kaisha Gas generating agent, process for production thereof, and gas generators for air bags
EP1568673A4 (en) * 2002-11-22 2012-01-04 Nippon Kayaku Kk Gas generating agent, process for production thereof, and gas generators for air bags
EP1857429A1 (en) * 2006-05-19 2007-11-21 Nitrochemie Wimmis AG Propulsive means for accelerating projectiles
US8353994B2 (en) 2006-05-19 2013-01-15 Nitrochemie Wimmis Ag Propulsion system for the acceleration of projectiles
WO2012174669A2 (en) 2011-06-21 2012-12-27 Nitrochemie Aschau Gmbh Use of a solid for the production of a propellant powder
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WO2014117280A1 (en) * 2013-01-29 2014-08-07 Nitrochemie Wimmis Ag Powder for accelerating projectiles for mortar systems
RU2711143C1 (en) * 2018-11-27 2020-01-15 Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") High-energy pyroxylin powder for propellant charges of tank artillery
CN115521185A (en) * 2022-10-09 2022-12-27 西安近代化学研究所 Composite modified double-base propellant
CN115521185B (en) * 2022-10-09 2023-12-12 西安近代化学研究所 Composite modified double-base propellant

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IL134708A (en) 2004-06-20
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CA2298513A1 (en) 2000-08-24
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NO20000386D0 (en) 2000-01-26
TR200000491A2 (en) 2000-09-21

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