EP0149714B1 - Charge propulsive densifiée, procédé de sa fabrication et dispositif de réalisation de ce procédé - Google Patents
Charge propulsive densifiée, procédé de sa fabrication et dispositif de réalisation de ce procédé Download PDFInfo
- Publication number
- EP0149714B1 EP0149714B1 EP84110002A EP84110002A EP0149714B1 EP 0149714 B1 EP0149714 B1 EP 0149714B1 EP 84110002 A EP84110002 A EP 84110002A EP 84110002 A EP84110002 A EP 84110002A EP 0149714 B1 EP0149714 B1 EP 0149714B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- propellant charge
- elements
- accordance
- section
- cross
- 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 - Lifetime
Links
- 239000003380 propellant Substances 0.000 title claims description 44
- 238000000034 method Methods 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title claims 2
- 239000000843 powder Substances 0.000 claims description 8
- 230000003019 stabilising effect Effects 0.000 claims 2
- 238000000280 densification Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000002360 explosive Substances 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
- F42B5/02—Cartridges, i.e. cases with charge and missile
- F42B5/16—Cartridges, i.e. cases with charge and missile characterised by composition or physical dimensions or form of propellant charge, with or without projectile, or powder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
- F42B33/02—Filling cartridges, missiles, or fuzes; Inserting propellant or explosive charges
- F42B33/025—Filling cartridges, missiles, or fuzes; Inserting propellant or explosive charges by compacting
Definitions
- the invention relates to a post-compressed propellant charge.
- a propellant charge of the type mentioned is known from DE-OS 25 04 756. It relates to a method and a device for compressing finely divided solid explosives in a garnet shell or in a propellant charge case: explosive is filled into the propellant charge case; an elastic sack is introduced into the propellant charge sleeve through the neck of the propellant charge sleeve and its neck opening is sealed. The propellant charge sleeve is then evacuated and the sack is then expanded using a pressure medium. As a result, the explosive is compressed again into a charge. It is also provided that the explosive is filled and recompressed in several stages, each time using a smaller sack.
- this method also proves to be complex and cumbersome. In addition, it can only lead to an axial density gradient. This disadvantageously complicates the ignition of the post-compressed propellant charge.
- the invention has for its object to provide a post-compressed propellant charge with improved ignition properties.
- the device has a frame 10 with a base plate 12 with first elements 14.1,.
- the latter have an essentially isosceles-triangular cross section and have a curved boundary surface 16 between plane-level boundary surfaces 17 and 18, which will be explained later.
- the first elements 14.1, ... are arranged on a circle with the same pitch, each with a passage 20 of essentially rectangular cross section remaining between mutually facing boundary surfaces 17 and 18 of adjacent first elements, for example 14.1 and 14.2.
- the passages 20 serve for the radially movable reception of second elements 22.1, ..., the lateral boundary surfaces 25 and 26 of which face away from one another are each directly adjacent to a boundary surface 17 or 18 of the first elements 14.1, ....
- the boundary surfaces 16 and 24 form essential areas of a wall of a room 38.
- This is assigned a support 48 on the underside and a cover 50 on the upper side.
- a projectile 41 with a projectile tail 42 protrudes into space 38.
- the projectile tail 42 is delimited on the circumference by a gas pressure receiving surface 46 of a sabot not specified and carries at its rear end a stabilizing tail 43 with five stabilizing wings 44.1,... 44.5, which are supported radially against the boundary surfaces 16 of the first elements 14.1, ... 14.5. 1 and 2 show the second elements 22, 1, ... in their starting position.
- Propellant powder 40 is poured into the space 38. The bulk quantity is equal to a propellant charge 52 (FIG. 3). Then the second elements 22.1, ... are simultaneously moved radially from their starting position in the direction of arrow 30 against the central longitudinal axis A. They act as pressing jaws and lead to a recompression of the poured propellant powder 40.
- a radial density gradient increases over the entire length.
- the process is ended as soon as the boundary surfaces 24 of the second elements 22.1, ..., 22.5 form a circle 28 together with the boundary surfaces 16 of the first elements 14.1, ..., 14.5 and thus the space 38 has assumed its circular cylindrical end cross-section, such as this is shown in Figures 3 and 4.
- the circle 28 is equal to the circumference of the propellant charge 52 or smaller by a predeterminable amount.
- an end-use space for the propellant charge 52 for example the interior 62 of a propellant charge sleeve 58 (see FIG. 5) has a slight taper.
- a longitudinally axial movement in the direction of an arrow 60 causes the projectile 41, which is only partially shown, with the propellant charge 52 compacted around the projectile tail 42 from the space 38 of the device into the interior 62 of the propellant charge sleeve positioned in an axially aligned manner in a receptacle 56 58 transferred.
- the circle 28 corresponds to the clear insertion cross section of the propellant charge sleeve, and after that Transferring to the interior of the propellant 52 relaxes slightly in some areas and fills the volume of the interior.
- the procedure is as follows: As can be seen by way of example in FIG. 2 from a dividing line 35, the second elements 22.1,.. . To pour in the propellant powder 40, an upper-side second part 36 is brought into an initial position at which the radial distance from the boundary surface 24 is greater than that of a lower-side first part 34.
- the propellant charge 52 has a greater density in the area of the upper-side second parts 36 than in the area of the lower-side first parts 34 of the second elements 22.1,... and the radial one also becomes an axial one Density gradient overlaid. This can still be present in the relevant area of the propellant charge sleeve 52 after the aforementioned slight relaxation and can be predetermined. In this advantageously simple manner, a comparatively higher density can be achieved, preferably in the rear region of the propellant charge 52, which has advantages in terms of interior ballistics.
- the ignition of the propellant charge 52 in its central axial region is favored because the compression of the propellant charge powder 40 is less there. This also favors a better separation behavior of the propellant powder with a simultaneous increase in the internal ballistic performance achieved by the recompression.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833332224 DE3332224A1 (de) | 1983-09-07 | 1983-09-07 | Nachverdichtete treibladung, verfahren zu ihrer herstellung und vorrichtung zum durchfuehren des verfahrens |
DE3332224 | 1983-09-07 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0149714A2 EP0149714A2 (fr) | 1985-07-31 |
EP0149714A3 EP0149714A3 (en) | 1988-10-05 |
EP0149714B1 true EP0149714B1 (fr) | 1990-10-24 |
Family
ID=6208424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84110002A Expired - Lifetime EP0149714B1 (fr) | 1983-09-07 | 1984-08-22 | Charge propulsive densifiée, procédé de sa fabrication et dispositif de réalisation de ce procédé |
Country Status (4)
Country | Link |
---|---|
US (1) | US4619201A (fr) |
EP (1) | EP0149714B1 (fr) |
DE (2) | DE3332224A1 (fr) |
NO (1) | NO843513L (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE449527C (sv) * | 1985-06-20 | 1988-12-19 | Nobel Kemi Ab | Explosiv laddning foer spraengfogning av grova roer, samt saett att framstaella densamma |
SE452799B (sv) * | 1985-06-20 | 1987-12-14 | Nobel Kemi Ab | Sett att framstella ringformiga laddningar och enligt settet framstellda laddningar |
DE3840875A1 (de) * | 1988-12-05 | 1990-06-07 | Rheinmetall Gmbh | Verfahren und vorrichtung zum verdichten einer treibladung und nach dem verfahren hergestellte munition |
DE3843289A1 (de) * | 1988-12-22 | 1990-06-28 | Diehl Gmbh & Co | Treibspiegelmunition |
DE3939295A1 (de) * | 1989-11-28 | 1991-05-29 | Rheinmetall Gmbh | Verfahren und vorrichtung zur herstellung von grosskalibriger munition |
US5456455A (en) * | 1994-02-01 | 1995-10-10 | Thiokol Corporation | Flare pellet and process for making same |
US6352029B1 (en) | 2000-03-30 | 2002-03-05 | The United States Of America As Represented By The Secretary Of The Navy | Thermally actuated release mechanism |
US6846372B1 (en) * | 2003-03-31 | 2005-01-25 | The United States Of America As Represented By The Secretary Of The Navy | Reactively induced fragmentating explosives |
CN105083856A (zh) * | 2015-08-20 | 2015-11-25 | 苏州听毅华自动化设备有限公司 | 一种不良品输出机构 |
US20220373310A1 (en) * | 2019-09-12 | 2022-11-24 | Carl Salmon | Grenade with independently detachable carpel segments |
CN112229279B (zh) * | 2020-09-18 | 2022-08-19 | 西安近代化学研究所 | 一种不使用配重块不改变装药量且能调节质量质心的液相装药战斗部壳体装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US726901A (en) * | 1899-05-27 | 1903-05-05 | George Whitman Mcmullen | Explosive charge. |
US654471A (en) * | 1899-06-26 | 1900-07-24 | Vickers Sons & Maxim Ltd | Powder-grain. |
US802347A (en) * | 1903-07-17 | 1905-10-17 | Henry C Aspinwall | Perforated powder-grain. |
US2995011A (en) * | 1959-09-17 | 1961-08-08 | Phillips Petroleum Co | Solid propellant rocket motor |
SE391025B (sv) * | 1974-02-08 | 1977-01-31 | Foerenade Fabriksverken | Sett att i granatholje eller laddningshylsa kompaktera finfordelat, fast explosivemne och anordning herfor |
US4020736A (en) * | 1976-03-29 | 1977-05-03 | The United States Of America As Represented By The Secretary Of The Navy | Automatic increment sizer-feeder for press loading |
US4331081A (en) * | 1980-07-25 | 1982-05-25 | C-I-L Inc. | Explosive booster |
DE3205152C2 (de) * | 1982-02-13 | 1984-04-12 | Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf | Treibladung für Hülsenmunition und Verfahren zu ihrer Herstellung |
-
1983
- 1983-09-07 DE DE19833332224 patent/DE3332224A1/de not_active Ceased
-
1984
- 1984-08-22 DE DE8484110002T patent/DE3483469D1/de not_active Expired - Fee Related
- 1984-08-22 EP EP84110002A patent/EP0149714B1/fr not_active Expired - Lifetime
- 1984-09-04 NO NO843513A patent/NO843513L/no unknown
- 1984-09-07 US US06/648,798 patent/US4619201A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE3332224A1 (de) | 1985-03-21 |
NO843513L (no) | 1985-03-08 |
US4619201A (en) | 1986-10-28 |
EP0149714A2 (fr) | 1985-07-31 |
DE3483469D1 (de) | 1990-11-29 |
EP0149714A3 (en) | 1988-10-05 |
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