EP2989069A1 - Ensemble propulseur sans douille à allumage électrique, fabrication et utilisation associées - Google Patents

Ensemble propulseur sans douille à allumage électrique, fabrication et utilisation associées

Info

Publication number
EP2989069A1
EP2989069A1 EP14723321.7A EP14723321A EP2989069A1 EP 2989069 A1 EP2989069 A1 EP 2989069A1 EP 14723321 A EP14723321 A EP 14723321A EP 2989069 A1 EP2989069 A1 EP 2989069A1
Authority
EP
European Patent Office
Prior art keywords
propellant
proportion
weight
nitrocellulose
mixture
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Withdrawn
Application number
EP14723321.7A
Other languages
German (de)
English (en)
Inventor
Willi Haug
Meinrad Zeh
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.)
Fischerwerke GmbH and Co KG
Original Assignee
Fischerwerke GmbH and Co KG
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 Fischerwerke GmbH and Co KG filed Critical Fischerwerke GmbH and Co KG
Publication of EP2989069A1 publication Critical patent/EP2989069A1/fr
Withdrawn legal-status Critical Current

Links

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
    • C06B25/18—Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition
    • C06B25/20—Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition with a non-explosive or a non-explosive or a non-thermic component
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
    • C06B23/001—Fillers, gelling and thickening agents (e.g. fibres), absorbents for nitroglycerine
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
    • C06B23/007—Ballistic modifiers, burning rate catalysts, burning rate depressing agents, e.g. for gas generating
    • 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
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B29/00—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate
    • C06B29/02—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate of an alkali metal
    • C06B29/16—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate of an alkali metal with a nitrated organic compound
    • C06B29/20—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate of an alkali metal with a nitrated organic compound the compound being nitrocellulose
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide

Definitions

  • the invention relates to an electrically ignitable caseless propellant charge (for example, for pin thrusters or other devices and purposes as set forth in more detail below) in the form of a caseless propellant tablet, or further a pelletized primer.
  • the published patent application DE 2417967 describes for driving for fastening purposes suitable nitrocellulose-based propellant charges, which are provided in sleeves with two open ends, at one end by means of a spark or a hot wire, the ignition can be made.
  • the ignition by means of a current through a specially shaped current conductive sleeve-shaped metal coating, as described in the patent application DE 1 300 845 done.
  • US 3,854,400 describes caseless propellants having a porosity achieved by leaching of a binder (e.g., potassium nitrate or toluene) especially for firearms which can be ignited by means of additional priming charges.
  • a binder e.g., potassium nitrate or toluene
  • Other ingredients include nitrocellulose with a nitrogen content of 13.2 to 13.5% ("gunpowder cotton"), diphenylamine as a stabilizer, as well as other admixtures.Of course, these are ignited mechanically (for example by means of firing pin).
  • DE OS 2 245 510 also describes blowing masses for envelopeless propellant charges as a power source for projectiles and striking tools. These include a mixture of nitrocellulose with high nitrogen content (13.2 to 13.4%) and low Nitrogen content (zB11, 6 to 11.8%) and potassium nitrate, which are formed into grains, then transferred to dissolve the potassium nitrate in porous form and extruded as a 1.4 mm thick "string", which then in 0.32 mm thick discs zer ⁇ cut. These slices are then tumbled in a pan with fine graphite to make a coating for improved flow properties and filling in a form to be granted ⁇ , and the particles are then pressed into a mold to form cylindrical propellant charges.
  • notch Electric ignition is not mentioned.
  • DE OS 1 906 573 relates to envelopeless explosive charges which can be ignited by means of current sources such as flashlight batteries or capacitor discharge circuits. For ignition single or multi-stranded wires or graphite pins are introduced into the mass.
  • Ignition kits for caseless ammunition and propellant cartridges which include, among others, nitrocellulose with a nitrogen content of 13.5%, zinc peroxide and carbon fibers.
  • DE 33 46 739 also describes primer charges (initial explosive), to which 0.8 to 2.0% by weight of furnace black or flame black is added this time to increase the conductivity.
  • US 2003/0034103 describes propellants for blowing powders which can serve as coatings for such powders.
  • the object of the invention is to provide in this light simplified propellant available that can be ignited by means of power sources, without requiring a Anzündsatzes.
  • the invention relates to a (without additional Zündsatz or conductive wires or pins provided) electrically ignitable caseless propellant in the form of a cashless tablet (pressed), characterized in that it is obtainable by mixing at least one electrically conductive material in dissolved or dispersed Mold or powder form (other than, in addition to graphite) and graphite in powder form, together with nitrocellulose, with or without addition of further additives, and then compressed into a tablet, or
  • the dissolved, dispersed or powdered form of the current-carrying material used in contrast to an embodiment in the form of wires or pins or an ignition from an outside) the "finely divided form v and allows rapid and homogeneous ignition.
  • Powder form always includes powder with elongated (like
  • Carbon shreds or carbon fibers and / or rather roundish approximately spherical shaped particles.
  • To further improve the conductivity for current carbon fibers may be added or added in the subsequent process.
  • the invention relates to a process for the preparation of a propellant propellant in the form of a caseless propellant tablet which is characterized by mixing at least one electrically conductive material in dissolved or dispersed form or in powder form other than graphite and graphite in powder form with nitrocellulose, with or without the addition of further additives, and subsequent compression to a graspab ⁇ lette.
  • a preferred embodiment of the production method relates to a method as mentioned above, which is characterized in that an electrically conductive material is mixed in ge ⁇ dissolved or dispersed form or in powder form except graphite with nitrocellulose with or without addition of further additives (wherein in a particular embodiment granules of the obtainable mixture are prepared, preferably by grinding, and this granulate is used as available mixture), and to a (if necessary obtained or obtained by a drying step) substantially (in particular not more than 15 wt .-%, For example, with 6 - 12 or with 8 - 10 wt .-% residual moisture) dry graphite powder is available as a powder, and then the mixture to the invention
  • Drifting tablets is pressed.
  • the at least partially lösli ⁇ compatible materials such as nitrocellulose and Acrylatgranulat
  • these methods also enable a simple industrial production of propellant charges according to the invention.
  • the available propellant propellants according to the invention have a substantially homogeneous structure in the sense of a solid dispersion (solid-solid mixture), whereby in simplified form the preferred structure obtainable by the preferred process is the granules of the granulate which may be deformed after pressing and, if necessary further particulate be ⁇ constituents are localized as a discontinuous phase in a kind of three-dimensional lattice structure with a high proportion of graphite..
  • the graphite can thus incorporate the granules practically in the form of a three-dimensional grid, so that even with a low graphite content sufficient conductivity for the ignition current can be achieved.
  • the invention also relates to the use of a conductive material in dissolved or dispersed form or in powder form ⁇ for producing an electrically ignitable propellant charge.
  • Another embodiment of the invention relates to the use of a propellant charge according to the invention as described above and below in a stud driver to turn on a swing bolts, as an explosive set in a Schreckschuss ⁇ device as gas-evolving element in airbags, for driving cutters or as propellant in Small caliber rifles for sporting purposes.
  • caseless propellant propellant according to the invention have, in addition to the fact that no cumbersome introduced stromleitfä- higen components such as metal wires or pins, for example made of graphite or metal are required for ignition and already ⁇ the semi-automatic production is facilitated, further advantages of caseless propellant charges, for example, any shaping options, such as cylindrical, ovoid or spherical; no polarity (difference between a "front” and “back” as with cartridges with primers and / or sleeves), easy handling eg without "cartridge belts” or the like, low weight and low volume requirements.
  • any shaping options such as cylindrical, ovoid or spherical
  • no polarity difference between a "front” and “back” as with cartridges with primers and / or sleeves
  • easy handling eg without "cartridge belts” or the like, low weight and low volume requirements.
  • the propellant charges according to the invention are suitable for use in particular for bolt thrusters, but also for Schreckschussvoriquesen (eg for expelling birds in fruit growing areas), as gas evolving elements in airbags, for driving cutting devices such as bolt cutters or caps of jigs in shipping, but also come for example as propellants in Kleinkaliberge ⁇ defense for sporting purposes, for example in biathlon, into consideration, or for bolt guns for animal slaughter.
  • the energy released for the purposes mentioned can advantageously be in the range of 10 to 1200 joules per propellant charge, for example in the range of 50 to 1000 joules, for example between 50 and 700 joules, for example between 150 and 400 joules.
  • the measurement can be for example by means of a light barrier from the mass and velocity of a projectile ⁇ be true.
  • propellant charges of the invention are what ⁇ serfest and for example also under subtropical Bedingun ⁇ gen (50 ° C / 75 to 80% relative humidity) very stable - they can eg also fall short in a puddle in the application and are still fully capable of ignition.
  • propellant sets according to the invention also have the advantage that they can be supplied directly as bulk material without straps or the like to the respective device (eg via a tube). For example, volumetric reductions of the order of one tenth and weight reductions of the order of one fifth of the values for conventional propellant units (in particular, pods and / or primers) may be realized.
  • propellants according to the invention have the advantage that they burn residue-free - there are no residues such as sleeves, wires or pins or more of them back.
  • the person skilled in the art can easily determine the quantities of materials and additives used for residue-free combustion (on the basis of stoichiometric considerations and simple experiments).
  • the shape of the propellant charges according to the invention is arbitrarily ausgestaltbar, for example in spherical shape, conical shape, in the form of polygonal bodies or in particular in a cylindrical shape, wherein in particular embodiments also centrally a through hole, can be introduced, for. can be provided by appropriately provided with a mandrel pressing tools.
  • an igniter eg primer, primer
  • the propellant sets according to the invention are therefore scalable arbitrarily, there is no need to distinguish between a "front” and “rear” (such as a detonator in the "rear ”) and there must be no notches or the like for the inclusion of detonators.
  • the propellant charges according to the invention also permit the exclusive use of commercially available cellulose nitrate ("nitrocellulose”), as is used, for example, in paint bases
  • the nitrogen content (% by weight, based on the nitrocellulose itself) of such nitrocellulose is approximately in the range from 10.7 to 12.5%, eg 11.8 to 12.3% - in contrast to gun cotton, where it is in the range of 13.2 to 13.5%.
  • USAGE ⁇ finished nitrocellulose is desensitized, for example with a solvent such as a lower alcohol, for example ethanol or isopropanol, wherein additional desensitizing agent such as plasticizer may be added, such as epoxidised soybean oil or acetyl tributylcitrate.
  • a solvent such as a lower alcohol, for example ethanol or isopropanol
  • additional desensitizing agent such as plasticizer may be added, such as epoxidised soybean oil or acetyl tributylcitrate.
  • Walsroder® TM nitrocellulose E 330 ethanol is an example of a preferred Ni ⁇ trocellulose.
  • the proportion of the solvent and / or the Phlegmatisie ⁇ agent may in a total of 10 to 50 wt .-%, wt example at about 30 to 40 wt .-%, for example at 35.%, Lie.
  • the proportion of nitrocellulose (possibly phlegmatized, that is to say for example with solvent) in a propellant according to the invention is advantageously, for example, in the range from 18 (eg 18.695) to 50 (eg 49.757)% by weight, in particular from 27 to 35% by weight. including existing solvents as mentioned.
  • the nitrocellulose serves as a propellant and fuel and can also act as a water-resistant binder.
  • the proportion of (possibly phlegmatized) nitrocellulose is 27.652 to 33.797 or 27 to 35 wt .-%.
  • the conductive material other than graphite is in the embodiments of the invention, in particular coal in question, preferably a charcoal (such as charcoal), such as hazelnut, lime wood, beech, alder or grapevine carbon fiber pulp (available from R & G Faserverbundtechnik GmbH, for example). Waldenbuch, Germany) or medical coal
  • the coal used is preferably finely pulverized, for example by means of a ball mill homogenized (tumbled) (ball mill FP-2012, using the supplied steel balls, 9.5 or 16 mm); Fireworks compassion Wennesheimer, Tuttlingen, Germany).
  • the conductive material or the coal is or is advantageous in a proportion of 2.4
  • the coal serves u.a. as a fuel supplier and as a power conductor.
  • the current-conductive material may be provided in a proportion of 7.164 to 8.757 wt .-%.
  • a fibrous conductive material for example carbon fiber, may be added.
  • the proportion of carbon and / or fibrous material is preferably in the range of 3 to 12, in particular from 3.5 to 6 wt .-%.
  • the graphite used in the embodiments of the invention can perform several functions: First, it can increase the electrical conductivity within the propellant charges according to the invention and thus also participate as an electrically conductive material in an electrical ignition, further it can to a smooth surface (also appears shiny metallic) and can increase the compressive strength, and finally it can also act as a lubricant that facilitates the production of he ⁇ inventive propellant charges and their handling (insertion, etc.). It is or is added advantageously in a proportion of 1.2 (for example 1.243) to 24.9 (for example up to 24.878)% by weight. For example, it may be provided in a proportion of 2 to 6% by weight, for example from 2.4 to 3.1 or from 4.477 to 5.472% by weight.
  • One or more oxygen generators such as in particular peroxide or potassium chlorate or potassium perchlorate or mixtures of two (in particular of the perchlorates or perchlorate with zinc peroxide), or all of them may oxygen supply for the combustion are used (allowing for the USAGE ⁇ dung of nitrocellulose with a lower nitrogen content than guncotton ) and are altogether advantageously present in a proportion of from 12 (for example 12.439) to 50 (for example up to 49.757)% by weight.
  • the oxygen generator or the mixture of oxygen generators in a proportion of
  • a catalytically active metal oxide such as manganese (IV) oxide (eg> 90% precipitate, active, CAS No. 1313-13-9, EC No. 215-202-6), can lower the ignition temperature, for example, from about 550 °° C to about 150 ° C cause. It may advantageously be added in a proportion of 0.6 (for example 0.621) to 6.3 (for example up to 6.291)% by weight.
  • the catalytically active metal oxide may be present in a proportion of 1.3 to 3.2% by weight, for example from 1.3 to 1.8% by weight, or from 2.563 to 3.132% by weight.
  • Iron (III) oxide for example, CAS No. 1309-37-1 / EC No.
  • the iron (III) oxide may be provided in a proportion of 0.335 to 0.410 wt .-%. But it can also be missing.
  • a semi-metallic (such as silicon) or metallic fuel supplier such as magnesium, fine iron or aluminum in particular (preferably with a grain size of 160 ⁇ or less), titanium (for example with a particle size of 40 ⁇ ), or zirconium, or a mixture of two or more thereof (promotes combustion and increases the combustion temperature and may also be provided as another conductive material other than graphite) may be added in an amount of from 0.000 to 12.5 (eg to 12.449)% by weight.
  • the fuel supplier may be provided in a proportion of 3.357 to 4.104 wt%. But it can also be missing.
  • a (increasing the long-term stability) binder in the form of a thermoplastic exclusively containing carbon, hydrogen and oxygen atoms is preferably an acrylate and / or methacrylate, particle size about 200 to 400 ⁇ , preferably rather low molecular weight, which surprisingly reduces the resulting pollutants (such as nitrous gases) can serve. It is or is advantageously added in a proportion of 1.2 (for example 1.243) to 7.5 (for example up to 7.463)% by weight.
  • the binder may be provided in a proportion of 1.5 to 4.2% by weight, for example, 1.5 to 2.0% by weight or 3.357 to 4.104% by weight.
  • a room temperature liquid hydrocarbon such as pentane and / or iso-octane, or a corresponding hydrocarbon mixture (such as gasoline, for example, car or cleaning ⁇ supply gasoline) may advantageously be in a range from 1.2 (for example, 1,243) to 15 wt .-%, For example, from 9 to 15 wt .-% or from 1.2 to 6.3 (eg to 6.219) wt .-%, be added when mixing the mass of a propellant according to the invention or be added and prevents, for example, a bonding of the manufacturing tools.
  • the proportion may for example be 9 to 15 or 3.134 to 3.831 wt .-%. It can be largely or completely removed or evaporated during drying.
  • a solvent for (in particular for dissolving the fibrous structure of) nitrocellulose and the binder in the form of a thermoplastic exclusively comprising carbon, hydrogen and oxygen atoms, such as acetone, methyl ethyl ketone or another liquid ketone at room temperature or an ester, such as ethyl acetate, or mixtures of two or more More of these can be added in the preparation of a mixture for a propellant according to the invention in a proportion of 3.7 (eg 3.731) to 37.4 (eg to 37.318) wt .-% or be.
  • the proportion may, for example, be 9 to 16% by weight or 12.314 to 1551% by weight.
  • this solvent can be largely or completely removed or evaporated.
  • a (preferably hydrophobic or hydrophobicized) (for example pyrogenic or precipitated) silica (optionally containing silicates, such as aluminum and / or calcium silicates) may be added as further additive, for example SIPERNAT® D10 from Evonik Industries AG, Hanau, Germany ,
  • the proportion may be, for example, 0.2 to 3 wt .-%, for example 0.3 to 1 wt .-%, lie.
  • inventive method for producing a propellant according to the invention can be carried out particularly advantageously as follows, which allows a particularly simple industrial production (also mentioned in the following examples):
  • the individual substances, except the graphite powder are weighed, including nitrocellulose (eg, containing 35% ethanol), and mixed without solvent addition.
  • the liquid substances solvent and hydrocarbon / hydrocarbon mixture
  • the mixture is ground to a granulate.
  • graphite powder is added and mixed in.
  • the granules obtainable in this way are ready for pressing and are pressed into tablets in a tableting machine and dried (eg at 60 ° C. for 24 hours). This gives the fiction, ⁇ modern propellants finished.
  • the propellant charge according to the invention can have a (for example central) hole, which can be designed to be continuous and can be configured, for example, by a corresponding mandrel in the pressing tool during pressing.
  • Fig. 1 shows schematically and greatly simplified a section of a tabletting in cross section and the pressing process in the tableting by means of a press ram.
  • Example 1 Inventive propellant in the form of a cylindrical tablet
  • ELVACITE® 2008 (Lucite International Inc., Cordova, TN) (a low molecular weight methyl methacrylate)
  • the individual substances except the graphite powder are weighed, including the nitrocellulose containing 35% ethanol, and mixed with no solvent added.
  • the liquid substances acetone and isooctane
  • the resulting dispersion or solution is mixed. This is followed by drying, for safety reasons to a residual moisture content of 8 to 10 wt .-% residual moisture (which is also advantageous from the aspect of safety).
  • the mixture is ground to a granulate.
  • the graphite powder is added.
  • the graphite granules thus obtained are ready to be pressed and pressed in a tableting machine (e.g., FETTE PERFECTA 1000, FETTE COMPACTING GmbH, Schwarzenbek, Germany) into cylindrical tablets and dried at 60 ° C for 24 hours.
  • a tableting machine e.g., FETTE PERFECTA 1000, FETTE COMPACTING GmbH, Schwarzenbek, Germany
  • Fig. 1 shows a rough schematic of a section of a Ma ⁇ trize 1 of such a tabletting machine.
  • the granules 2 are still in the unpressed state within a matrix filling space 3.
  • the pressing process is carried out by means of the upper punch 4. simply represented - here already in the stage maximum
  • the granulate 2 is here compacted to the tablet 5 (here for example cylindrical).
  • Example 2 Ignition of a propellant charge according to the invention
  • the propellant tablets are stable against even increased humidity and storable even with subtropical humidities.
  • Example 4 Carbon-fiber and Silica-containing Propellant Propellant compositions having the following composition are prepared analogously to Example 1:
  • the invention also relates to the subject matter referred to in the claims and in the summary, which are incorporated herein by reference.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Medicinal Preparation (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Air Bags (AREA)
  • Cosmetics (AREA)

Abstract

Ensemble propulseur sans douille à allumage électrique sous forme d'un comprimé de propulsion (5) sans douille, caractérisé en ce qu'il est obtenu par mélange d'au moins un matériau électroconducteur sous forme dissoute ou dispersible ou sous forme pulvérulente avec du graphite sous forme pulvérulente, conjointement avec de la nitrocellulose, avec ou sans adjonction d'autres additifs, et par compression en un comprimé de propulsion. L'invention concerne également sa fabrication et son utilisation ainsi que des objets connexes. Ses utilisations sont les suivantes: utilisation de l'ensemble propulseur dans un appareil à enfoncer des clous, en tant que charge explosive dans un dispositif de tir d'effarouchement, en tant qu'élément développant du gaz dans des sacs gonflables, pour entraîner des dispositifs de coupe, pour entraîner des dispositifs de pression (par ex. pour la compression d'éléments de type tenailles) ou bien en tant qu'ensemble propulseur dans des armes de petit calibre destinées à des activités sportives, ou dans des pistolets à cheville percutante pour l'abattage d'animaux.
EP14723321.7A 2013-04-25 2014-04-14 Ensemble propulseur sans douille à allumage électrique, fabrication et utilisation associées Withdrawn EP2989069A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013104170 2013-04-25
PCT/EP2014/000994 WO2014173504A1 (fr) 2013-04-25 2014-04-14 Ensemble propulseur sans douille à allumage électrique, fabrication et utilisation associées

Publications (1)

Publication Number Publication Date
EP2989069A1 true EP2989069A1 (fr) 2016-03-02

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EP14723321.7A Withdrawn EP2989069A1 (fr) 2013-04-25 2014-04-14 Ensemble propulseur sans douille à allumage électrique, fabrication et utilisation associées

Country Status (7)

Country Link
US (1) US20160046536A1 (fr)
EP (1) EP2989069A1 (fr)
JP (1) JP2016525992A (fr)
CN (1) CN105121389B (fr)
DE (1) DE102014105285A1 (fr)
MX (1) MX2015014845A (fr)
WO (1) WO2014173504A1 (fr)

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CN105541523B (zh) * 2015-12-15 2017-11-10 湖北航天化学技术研究所 一种热塑性碳氢推进剂组合物
CN105643564A (zh) * 2016-01-29 2016-06-08 朱顺官 无烟环保型无壳射钉弹及其制造方法
US10858922B2 (en) 2016-08-19 2020-12-08 Halliburton Energy Services, Inc. System and method of delivering stimulation treatment by means of gas generation
US10940454B2 (en) * 2017-01-17 2021-03-09 Proton Power, Inc. Biochar methods, systems, devices, and products
CN111664472B (zh) * 2020-06-11 2023-04-25 成都银河动力有限公司 一种便携式户外生火棒
CN111908988B (zh) * 2020-06-30 2021-09-07 湖北航天化学技术研究所 一种组合功能助剂及其制备方法和在推进剂中的应用
CN114394877B (zh) * 2021-11-20 2022-11-29 中北大学 一种膛内能量时序补偿发射药间断成型装置及方法

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DE102014105285A1 (de) 2014-10-30
US20160046536A1 (en) 2016-02-18
CN105121389B (zh) 2017-11-21
WO2014173504A1 (fr) 2014-10-30
MX2015014845A (es) 2016-03-11
JP2016525992A (ja) 2016-09-01
CN105121389A (zh) 2015-12-02

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