EP1241150A2 - Verfahren zur Herstellung giessfähiger kunststoffgebundener Sprengladungen oder Raketentreibstoffe - Google Patents
Verfahren zur Herstellung giessfähiger kunststoffgebundener Sprengladungen oder Raketentreibstoffe Download PDFInfo
- Publication number
- EP1241150A2 EP1241150A2 EP01129902A EP01129902A EP1241150A2 EP 1241150 A2 EP1241150 A2 EP 1241150A2 EP 01129902 A EP01129902 A EP 01129902A EP 01129902 A EP01129902 A EP 01129902A EP 1241150 A2 EP1241150 A2 EP 1241150A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal powder
- powder
- polar groups
- plastic
- groups
- 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
Classifications
-
- 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
- C06B45/30—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an inorganic explosive or an inorganic thermic component
- C06B45/32—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an inorganic explosive or an inorganic thermic component the coating containing an organic compound
-
- 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
- C06B21/0008—Compounding the ingredient
- C06B21/0025—Compounding the ingredient the ingredient being a polymer bonded explosive or thermic component
Definitions
- the invention relates to a method for producing castable plastic-bound Explosive charges or rocket fuels according to the preamble of claim 1.
- Plastic-bound explosive charges have a high active power relatively high insensitivity. They consist of reaction polymers in the front curing crystalline explosives, such as octogen, hexogen, pentaerythritol tetranitrate etc., can be incorporated. The polymer content is about 10 to 20 Wt .-%.
- a problem with the manufacture of plastic explosive charges is that with increasing solids content, i.e. with increasing proportion of explosive, the viscosity of the mixture can increase so that pouring of this mixture becomes impossible.
- the theoretical limit for a flowable mixture is 92 Wt .-%.
- the practical limit for flowable Mixtures is approx. 90% by weight.
- explosive charges with one high solid content can only be poured if the grain sizes are suitable for the explosive charge explosive crystals used within a predetermined diameter interval lie, so that a relatively costly screening of grain fractions is required.
- the respective explosive charge 0.1 to 10% by weight of fine-grained vanadium, Niobium, tantalum, chromium, molybdenum or tungsten powder or a mixture from two or more such powders, the powder grains being one should have a substantially spherical shape.
- this metal powder which due to the spherical shape of the powder grains a very small specific Surprisingly, surface has been shown to be like liquid Lubricants act between the coarser-grained explosive particles (tribological Effect), so that relatively low viscosities result.
- the invention has for its object a method for producing less sensitive pourable plastic-bound explosive charges or rocket fuels with a high (e.g. 90%) solid content, with which an increase the viscosity due to polar deposits on the metal surface of the metal powder Groups is avoided.
- the polar groups can no longer react with the isocyanates and the specific surface area of the respective metal powder is reduced.
- the viscosity of the explosive charge also drops.
- All alkyl and aryl radicals are suitable as organic radicals, the alkyl radicals being more reactive.
- tungsten powder (grain size between 3 and 5 ⁇ m) was placed in a solution of 900 g of pentane and 20 g of trimethylchlorosilane and stirred for 5 minutes. The tungsten powder was then filtered off and dried in a drying cabinet. While the specific surface area before the treatment with Me3SiCl was 0.1978 m 2 / g, it was only 0.1880 m 2 / g after the treatment, which subsequently reduced the viscosity of the explosive mixture from approx. 600 - 800 Pas to approx 400 Pas led.
- the grain size of the respective metal powder should be between 0.1 and 5 ⁇ m lie.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Powder Metallurgy (AREA)
- Lubricants (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
Description
- 80-88 Gew.-%
- Kristalliner Sprengstoff, z.B. RDX oder HMX
- 10-20 Gew.-%
- Binder, z.B. HTPB
- 5-10 Gew.-%
- Weichmacher
- 0,01-02 Gew.-%
- Haftvermittler
- 0,05-05 Gew.-%
- Gießhilfen
- 0,1-1,0 Gew.-%
- Antioxidans
- 0,1-10 Gew.-%
- Metallpulver
Claims (5)
- Verfahren zur Herstellung gießfähiger kunststoffgebundener Sprengladungen oder Raketentreibstoffen, denen ein Metallpulver zugesetzt wird, deren Pulverkörner eine im wesentlichen sphärische Form aufweisen, dadurch gekennzeichnet, daß vor dem Einbringen des Metallpulvers in die Sprengstoffmischung ein Absättigen der polaren Gruppen des Metallpulvers durch SiR3-Gruppen (Si = Silane; R = organischer Rest) erfolgt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß es sich bei dem organischen Rest um einen Alkyl- oder Arylrest handelt.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß zur Absättigung der polaren Gruppen des Metallpulvers Trimethylchlorsilan (Me3SiCl) verwendet wird.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß als Metallpulver Pulver eines oder mehrerer der folgenden Metalle: Vanadin, Niob, Tantal, Chrom, Molybdän oder Wolfram zugesetzt wird.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Korngröße des jeweiligen Metallpulvers derart gewählt wird, daß sie zwischen 0,1 bis 5 µm liegt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10107948A DE10107948A1 (de) | 2001-02-20 | 2001-02-20 | Verfahren zur Herstellung gießfähiger kunststoffgebundener Sprengladungen oder Raketentreibstoffe |
| DE10107948 | 2001-02-20 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1241150A2 true EP1241150A2 (de) | 2002-09-18 |
| EP1241150A3 EP1241150A3 (de) | 2003-11-05 |
| EP1241150B1 EP1241150B1 (de) | 2005-09-07 |
Family
ID=7674732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01129902A Expired - Lifetime EP1241150B1 (de) | 2001-02-20 | 2001-12-15 | Verfahren zur Herstellung giessfähiger kunststoffgebundener Sprengladungen oder Raketentreibstoffe |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6558488B2 (de) |
| EP (1) | EP1241150B1 (de) |
| DE (2) | DE10107948A1 (de) |
| IL (1) | IL148248A (de) |
| NO (1) | NO321219B1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050076560A1 (en) * | 2001-08-27 | 2005-04-14 | Wiley David B. | Alkynylsilanes as fuels and rocket propellants |
| US8545646B1 (en) * | 2005-06-10 | 2013-10-01 | The United States Of America As Represented By The Secretary Of The Navy | High-density rocket propellant |
| US7943084B1 (en) * | 2007-05-23 | 2011-05-17 | The United States Of America As Represented By The Secretary Of The Navy | Metal powders with improved flowability |
| US8894739B1 (en) * | 2007-05-23 | 2014-11-25 | The United States Of America As Represented By The Secretary Of The Navy | Metal powders with improved flowability |
| DE102010052628A1 (de) | 2010-11-29 | 2012-05-31 | Rheinmetall Waffe Munition Gmbh | Perchloratfreie pyrotechnische Mischung |
| RU2524500C1 (ru) * | 2013-02-05 | 2014-07-27 | Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") | ЗАРЯД ДЛЯ ОХОТНИЧЬЕГО ПАТРОНА 7,62×39-9 (С ПУЛЕЙ МАССОЙ 9 г) |
| RU2524494C1 (ru) * | 2013-03-06 | 2014-07-27 | Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") | ЗАРЯД ДЛЯ ОХОТНИЧЬЕГО ПАТРОНА 7,62×39-10 (С ПУЛЕЙ МАССОЙ 10 г) |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2647047A (en) * | 1950-03-06 | 1953-07-28 | Warren B Richardson | Explosive composition |
| USRE27025E (en) * | 1960-02-01 | 1971-01-12 | Mcdonald Louis | Process of conditioning particulate materials with an organosilicon coating for use in organic explosives. |
| CA928927A (en) * | 1967-11-14 | 1973-06-26 | Kawakita Takao | Nylon molding article and process for producing the same |
| CA1060660A (en) * | 1976-10-28 | 1979-08-21 | Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government | Composite explosives |
| US4115165A (en) * | 1977-06-23 | 1978-09-19 | Atlas Powder Company | Hydrophobic aluminum sensitizing agents for explosives |
| NO144666C (no) * | 1980-02-29 | 1981-10-14 | Dyno Industrier As | Fremgangsmaate for fremstilling av aluminiumholdige hoeyenergisprengstoffblandinger |
| DE3234978C1 (de) * | 1982-09-22 | 1984-01-26 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Gegossene Sprengladung |
| CA1207588A (en) * | 1983-09-23 | 1986-07-15 | Gordon K. Briosi | Dual-function storage container for prilled explosive |
| US4689250A (en) * | 1984-11-16 | 1987-08-25 | Siemens Aktiengesellschaft | Cross-linked polymer coated metal particle filler compositions |
| US4696641A (en) * | 1986-08-11 | 1987-09-29 | Gte Products Corporation | Primer material and photoflash lamp |
| DE3804396C1 (en) * | 1988-02-12 | 1989-05-18 | Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De | Process for producing plastic-bonded explosives |
| US5209976A (en) * | 1988-07-04 | 1993-05-11 | Matsushita Electric Industrial Co., Ltd. | Structure having a surface covered with a monomolecular film |
| DE3934368C1 (de) * | 1989-10-14 | 1990-11-15 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De | |
| US5547526A (en) * | 1990-03-06 | 1996-08-20 | Daimler-Benz Aerospace Ag | Pressable explosive granular product and pressed explosive charge |
| US5123981A (en) * | 1990-06-14 | 1992-06-23 | Atlas Powder Company | Coated solid additives for explosives |
| US5451277A (en) * | 1991-05-09 | 1995-09-19 | Aerojet-General Corporation | Preparing solid energetic compositions from coated particles and liquid oxidizers |
-
2001
- 2001-02-20 DE DE10107948A patent/DE10107948A1/de not_active Withdrawn
- 2001-12-15 DE DE50107360T patent/DE50107360D1/de not_active Expired - Lifetime
- 2001-12-15 EP EP01129902A patent/EP1241150B1/de not_active Expired - Lifetime
- 2001-12-20 NO NO20016257A patent/NO321219B1/no not_active IP Right Cessation
-
2002
- 2002-02-19 IL IL148248A patent/IL148248A/en active IP Right Grant
- 2002-02-20 US US10/077,770 patent/US6558488B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US20030056865A1 (en) | 2003-03-27 |
| IL148248A (en) | 2007-05-15 |
| EP1241150B1 (de) | 2005-09-07 |
| NO20016257D0 (no) | 2001-12-20 |
| NO321219B1 (no) | 2006-04-03 |
| IL148248A0 (en) | 2002-09-12 |
| DE50107360D1 (de) | 2005-10-13 |
| US6558488B2 (en) | 2003-05-06 |
| DE10107948A1 (de) | 2002-08-22 |
| NO20016257L (no) | 2002-08-21 |
| EP1241150A3 (de) | 2003-11-05 |
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