EP0150431B1 - Charge de propulsion pour armes à tube et procédé pour sa production - Google Patents

Charge de propulsion pour armes à tube et procédé pour sa production Download PDF

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Publication number
EP0150431B1
EP0150431B1 EP84115678A EP84115678A EP0150431B1 EP 0150431 B1 EP0150431 B1 EP 0150431B1 EP 84115678 A EP84115678 A EP 84115678A EP 84115678 A EP84115678 A EP 84115678A EP 0150431 B1 EP0150431 B1 EP 0150431B1
Authority
EP
European Patent Office
Prior art keywords
propellant charge
powder
powders
homogeneous
firing temperature
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.)
Expired
Application number
EP84115678A
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German (de)
English (en)
Other versions
EP0150431A1 (fr
Inventor
Wilhelm Dr. Oversohl
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.)
WNC Nitrochemie GmbH
Original Assignee
WNC Nitrochemie GmbH
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Filing date
Publication date
Application filed by WNC Nitrochemie GmbH filed Critical WNC Nitrochemie GmbH
Publication of EP0150431A1 publication Critical patent/EP0150431A1/fr
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Publication of EP0150431B1 publication Critical patent/EP0150431B1/fr
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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

Definitions

  • the invention relates to propellant charges from propellant charge powders, the energy sources of which are nitrocelluloses or nitrocelluloses and explosive oils or nitrocelluloses, explosive oils, nitroguanidine and / or hexogen, octogen, i.e. H. from propellant powders, which as one, two or. three-base propellant powder are called.
  • Propellant powder of these compositions can be manufactured as a full strand, perforated or tube powder.
  • Single-base propellant powders must be prepared with suitable solvents such as ether, alcohol, acetone to gelatinize the nitrocelluloses.
  • Two and three-base propellant powders can be manufactured without solvents if the composition is appropriate. They are called PoL powder.
  • the surface treatment that may be used for bulk powders can be disregarded in this consideration.
  • a characteristic of "homogeneous powders” is that their burning speed increases with increasing bombardment or ambient temperatures. This has the consequence that with propellant charges from “homogeneous powders” in the gun bombardment the projectile speeds at a bombardment temperature of z. B. - 40 ° C are significantly smaller than at a bombardment temperature of z. B. + 60 ° C.
  • the temperature-dependent performance of the propellant charges has considerable disadvantages, e.g. B. in terms of first strike safety and projectile performance, which by the at high temperatures of z. B. + 60 ° C occurring weapon pressure is limited.
  • Propellant powders which do not have the characteristic increase in burning speeds with increasing temperatures, which have been highlighted for "homogeneous powder", are described in DE-PS-1 771 087, DE-PS-2 042 457 and DE-OS-3 008 196 .
  • the energy sources of these propellant powders are the same as for the classic "homogeneous powders".
  • the decisive difference is the material structure of the powder mass.
  • One-, two- or three-base bulk powder called granules
  • suitable dimensions are e.g. B. incorporated into the plasticine, called the base, of a single-base propellant powder.
  • the degree of nitration of the nitrocelluloses used to produce the granules and base material is such that the granules are retained as granules in the course of the production of these powders.
  • HET powder Because of the materially heterogeneous structure in the powder grain, which is given by embedding a granulate in a powder base, these powder types are called "HET powder”.
  • HET powders have a fundamentally different temperature dependency than “homogeneous powders”. With increasing bombardment temperatures their burning speed decreases.
  • HET powders that burn off in a temperature-neutral manner would be advantageous. However, this cannot be achieved with the known powder types in a larger bombardment temperature range of several tens of degrees Celsius with the specification of heat of explosion, force and propellant powder dimensions.
  • propellant charges are obtained in a surprisingly simple manner with a combustion behavior which is temperature-neutral over a large bombardment temperature range or can be influenced in a targeted manner as a function of temperature by one or more material-homogeneous propellant charge powders (“homogeneous powder”) with one or more material-inhomogeneous propellant charge powders (“HET- Powder ”) mixes to form the propellant charge.
  • homogeneous powder material-homogeneous propellant charge powders
  • HET- Powder material-inhomogeneous propellant charge powders
  • combustion behavior which can be specifically influenced in the temperature dependency should take into account here that occasionally a weapon pressure drop is deliberately sought at extremely low firing temperatures in order to have security against an accidental increase in weapon pressure due to powder embrittlement occurring at extremely low temperatures. Likewise, a bombardment temperature which occurs comparatively high and therefore rarely or not at all occurs occasionally Weapon pressure drop may be acceptable. It is essential that it is possible the finished i 'b tbiadung easily set so with the inventive measure, by appropriate choice of powder types and used for the mixture of their mixing ratio, the combustion behavior that the burnup characteristics such as weapons pressure and projectile velocity to a greater bombardment temperature-rated range in about are constant and in any case do not become larger outside the nominal range.
  • 1 and 2 show the measured values for weapon pressure and projectile speed obtained on a 2 cm machine gun in the bombardment temperature range between -40.degree. C. and + 60.degree.
  • Part A shows the projectile speeds measured at 16 m weapon distance
  • part B the measured weapon pressures.
  • HET powder is developed for a "homogeneous powder” that is used in a type of ammunition to build up the propellant charge. This means that the heat of explosion, the force and the dimensions of the "HET powder” can be set to the same or comparable values as for the "homogeneous powder” by appropriate choice of basic composition and granulate composition and quantity of granulate.
  • the HET powder is adapted to the" homogeneous powder "in such a way that for a reference value of the bombardment temperature of, for example, -5 to -10.degree - “or” HET powder "build up propellant charges. If this is fulfilled, the pressure and speed curves of the two powders are mirror images of each other after rising and falling bombardment temperatures.
  • propellant charge is built up from a mixture of equal parts by weight of "homogeneous” and this "HET powder" adapted in the above manner, weapon pressure and projectile speed remain practically constant in the bombardment temperature range of - 40 ° C to + 60 ° C.
  • the curves labeled 1 represent the values for weapon pressure and projectile speed which were obtained with the "homogeneous propellant powder" introduced for this ammunition.
  • the curves labeled 2 represent the values obtained with the adjusted "HET powder”.
  • the curves denoted by 3 represent the values obtained with a mixture of the same weight fractions of both powders.
  • Example 2 It differs from Example 1 in that the "HET powder" used was constructed in such a way that the weapon pressure drops from higher and lower temperatures from the reference value of 0 ° C. to the bombardment temperature.
  • the curves labeled 1 again represent the values of the "homogeneous powder”
  • the curves labeled 2 represent the values of the "HET powder”
  • the curves labeled 3 represent the values obtained with a mixture of the same proportions by weight of both powders were obtained.

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  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Preparation (AREA)
  • Ceramic Products (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Cosmetics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (3)

1. Charge de propulsion pour armes à tube, caractérisée en ce qu'elle est formée d'un mélange d'au moins une poudre de charge de propulsion homogène à une ou plusieurs bases, dont les corps de la poudre sont de substance homogène, avec au moins une poudre de charge de propulsion hétérogène, charge dont le corps de poudre se compose d'une masse de base de la poudre à une ou plusieurs base, comprenant des granulats de poudres une ou plusieurs base inclus à l'intérieur et qui présente, du fait de sa structure hétérogène une caractéristique de pression à coefficient de température de bombardement négatif, en ce que, du point de vue de la chaleur d'explosion, de la force et des dimensions, les poudres de charge de propulsion sont établies à des caractéristiques identiques ou comparables, et en ce que le rapport de mélange des poudres de charges de propulsion est choisi de telle sorte que, dans une zone nominale prédéterminée souhaitée de température de bombardement, le coefficient positif de température de bombardement de la poudre de charge de propulsion homogène est compensé par le coefficient négatif de température de bombardement de la poudre de charge de propulsion hétérogène, pour produire un comportement de combustion de la charge de propulsion à peu près constant.
2. Charge de propulsion selon la revendication 1, caractérisée en ce que les poudres de charge de propulsion du mélange procurent toutes pour une pression d'arme la même performance ballistique pour une valeur de référence déterminée de la température de bombardement (de par exemple + 21°C).
3. Charge de propulsion selon la revendication ou 2, caractérisée en ce que la proportion en poudre de charge de propulsion homogène dans la charge de propulsion est à peu près comprise entre 20 et 40 % en poids.
EP84115678A 1983-12-21 1984-12-18 Charge de propulsion pour armes à tube et procédé pour sa production Expired EP0150431B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833346287 DE3346287A1 (de) 1983-12-21 1983-12-21 Treibladung fuer rohrwaffen und verfahren zu ihrer herstellung
DE3346287 1983-12-21

Publications (2)

Publication Number Publication Date
EP0150431A1 EP0150431A1 (fr) 1985-08-07
EP0150431B1 true EP0150431B1 (fr) 1989-12-06

Family

ID=6217613

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84115678A Expired EP0150431B1 (fr) 1983-12-21 1984-12-18 Charge de propulsion pour armes à tube et procédé pour sa production

Country Status (6)

Country Link
EP (1) EP0150431B1 (fr)
CA (1) CA1265344A (fr)
DE (2) DE3346287A1 (fr)
ES (1) ES8800120A1 (fr)
IL (1) IL73741A (fr)
PT (1) PT79719B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0767155B1 (fr) * 1995-10-06 2000-08-16 Autoliv Asp, Inc. Charges hétérogènes génératrices de gaz
DE19635795C2 (de) * 1996-09-04 2002-09-26 Rheinmetall W & M Gmbh Treibladung für Rohrwaffen
DE19907809C2 (de) 1999-02-24 2002-10-10 Nitrochemie Gmbh Verfahren zur Herstellung von ein-, zwei- oder dreibasigen Triebladungspulvern für Rohrwaffenmunition
DE102011118547B4 (de) * 2011-11-16 2013-06-27 Diehl Bgt Defence Gmbh & Co. Kg Verfahren zur Vorhersage des Abbrandverhaltens eines Treibladungspulvers
EP3495338A1 (fr) 2017-12-08 2019-06-12 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Charge propulsive
CN113149796A (zh) * 2021-05-10 2021-07-23 雷存炬 一种一体钉发射药及其制备方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718094A (en) * 1962-07-30 1973-02-27 North American Aviation Inc Gas generator charge with decreased temperature sensitivity
DE1771087C3 (de) * 1968-04-01 1973-09-27 Wilhelm Dipl.-Chem Dr. 5400 Koblenz Oversohl Ein- oder mehrbasiges Treibladungspulver und Verfahren zu seiner Herstellung
DE2042457C3 (de) * 1968-04-01 1975-06-19 Wilhelm Dipl.-Chem Dr. 5400 Koblenz Oversohl Verfahren zur Herstellung eines eln- oder mehrbasigen Treibladungspulvers
FR2234246B1 (fr) * 1973-06-19 1976-09-17 Poudres & Explosifs Ste Nale
DE3008196A1 (de) * 1980-03-04 1981-09-17 Wilhelm Dipl.-Chem. Dr. 5400 Koblenz Oversohl Ein- oder mehrbasiges treibladungspulver und verfahren zu seiner herstellung

Also Published As

Publication number Publication date
ES8800120A1 (es) 1987-11-01
IL73741A (en) 1989-12-15
ES538754A0 (es) 1987-11-01
IL73741A0 (en) 1985-03-31
CA1265344A (fr) 1990-02-06
PT79719A (en) 1985-01-01
EP0150431A1 (fr) 1985-08-07
DE3480649D1 (de) 1990-01-11
PT79719B (en) 1987-07-13
DE3346287A1 (de) 1985-07-04

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