EP2106526B1 - Formteil sowie verfahren zum herstellen des formteils - Google Patents
Formteil sowie verfahren zum herstellen des formteils Download PDFInfo
- Publication number
- EP2106526B1 EP2106526B1 EP07847024.2A EP07847024A EP2106526B1 EP 2106526 B1 EP2106526 B1 EP 2106526B1 EP 07847024 A EP07847024 A EP 07847024A EP 2106526 B1 EP2106526 B1 EP 2106526B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- moulded part
- inert
- part according
- energy
- felt
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000000463 material Substances 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 6
- 239000003380 propellant Substances 0.000 claims description 6
- 238000009472 formulation Methods 0.000 claims description 5
- 239000000020 Nitrocellulose Substances 0.000 claims description 4
- 238000009950 felting Methods 0.000 claims description 4
- 239000002657 fibrous material Substances 0.000 claims description 4
- 229920001220 nitrocellulos Polymers 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- 238000007654 immersion Methods 0.000 claims 1
- 239000004744 fabric Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 238000000465 moulding Methods 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 241001080024 Telles Species 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000003351 stiffener 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
- F42B5/18—Caseless ammunition; Cartridges having combustible cases
- F42B5/188—Manufacturing processes therefor
-
- 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
- F42B5/18—Caseless ammunition; Cartridges having combustible cases
- F42B5/192—Cartridge cases characterised by the material of the casing wall
Definitions
- the EP 0 248 978 A relates to a propellant sleeve with a nitrocellulose-based nonwoven sleeve.
- a propellant sleeve with a nitrocellulose-based nonwoven sleeve is in the range of curved, angularly cut or a bore surrounded sections of the sleeve to embed a stiffener made of metal or plastic or to attach to the sleeve, the stiffening in turn has a residue-free combustion the nonwoven not impairing design, but better absorbed mechanical stresses become.
- Certain parts of a cartridge, especially with a combustible sleeve, are made of inert material. Thus, such inert materials are provided at joints between the drive and projectile.
- Non-flammable inert molds must be removed erosively by mechanical action of the TLP bodies and the hot gases. This means that corresponding connecting parts, which are known as cartridge caps in 120 mm cartridges, must be disassembled during firing and / or so weakened by erosion that only fractions remain.
- the invention is based on the idea to reduce the proportion of the inert material to a necessary minimum, in particular in the connection zone or at the connection point between drive and projectile. For this purpose, it is provided to carry out these moldings in a so-called layered construction, which can be realized in the felting process.
- zones of the molded parts are mixed with energetic fiber material, preferably nitrocellulose. These zones are built only on the propellant charge powder facing molding side. However, all safety-relevant areas, such as contact points with the holder in the ammunition container, bearing surfaces in the tower bunker, connections of bullets, etc. remain completely inert.
- the erosion of the surface in the propellant charge space is supported by the hot gases when shooting on the molded part inside.
- the remaining amount of inert material is easier and more completely decomposed.
- the size and mass of the residual parts is significantly reduced and can be easily flushed out of the charge space by the gas flow.
- This form of sandwich is realized in the flooding process by various accumulations of pulps. As is known, such a system is subdivided into flooding chambers. Only in the chambers, where an inert coating is to take place, this inert recipe is added.
- FIGURE shows a detail of a molded part 1 which has a felt 3 with an energetic material 4 and an inert material 5 in a predefined area 2 or a predefined partial zone.
- the felting process it is provided to apply a felt 3 with energetic formulation to the previously defined area 2.
- a felt 3 with energetic formulation to the previously defined area 2.
- the entire suction surface is released and the final raw felt form is formed.
- an inert recipe is selected for the second process step.
- a two-head system with dip felter and felt zone control is used.
- the felting is done by vacuum and timing.
- the pulp concentration is adjusted to the fiber formulation.
- cartridge cover molded part 1 with different internal, preferably combustible, and outer material, preferably inert, can be constructed.
- a nitrocellulose-free mixture for example, from pulp and groundwood, can be used.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Paper (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Portable Nailing Machines And Staplers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007001655A DE102007001655A1 (de) | 2007-01-04 | 2007-01-04 | Formteil sowie Verfahren zum Herstellen des Formteils |
PCT/EP2007/010676 WO2008080506A1 (de) | 2007-01-04 | 2007-12-07 | Formteil sowie verfahren zum herstellen des formteils |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2106526A1 EP2106526A1 (de) | 2009-10-07 |
EP2106526B1 true EP2106526B1 (de) | 2014-02-19 |
Family
ID=39166373
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07847024.2A Active EP2106526B1 (de) | 2007-01-04 | 2007-12-07 | Formteil sowie verfahren zum herstellen des formteils |
Country Status (7)
Country | Link |
---|---|
US (1) | US8763534B2 (ko) |
EP (1) | EP2106526B1 (ko) |
KR (1) | KR101513740B1 (ko) |
DE (1) | DE102007001655A1 (ko) |
ES (1) | ES2461767T3 (ko) |
WO (1) | WO2008080506A1 (ko) |
ZA (1) | ZA200903778B (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9230815B2 (en) * | 2012-10-26 | 2016-01-05 | Appled Materials, Inc. | Methods for depositing fluorine/carbon-free conformal tungsten |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3901153A (en) * | 1972-10-04 | 1975-08-26 | Us Air Force | Wrapped laminated felted monolithic combustible cartridge case |
US3823668A (en) * | 1972-10-19 | 1974-07-16 | Us Air Force | Duplex combustible cartridge case |
DE2323244C3 (de) * | 1973-05-09 | 1979-04-19 | Rheinmetall Gmbh, 4000 Duesseldorf | Flügelstabilisiertes Unterkalibergeschoß |
DE3008999A1 (de) | 1974-06-14 | 1981-09-24 | Wilhelm Dipl.-Chem. Dr. 5400 Koblenz Oversohl | Verfahren zur herstellung von verbrennbaren munitionsformteilen und vorrichtung zum ausueben des verfahrens |
DE3008996A1 (de) | 1980-03-08 | 1981-09-24 | Wilhelm Dipl.-Chem. Dr. 5400 Koblenz Oversohl | Verfahren zur herstellung von verbrennbaren munitionsformteilen, wie kartuschhuelsen oder treibladungsbehaelter mit verstaerkenden gewebeeinlagen und vorrichtung zum ausueben des verfahrens |
DE3619960A1 (de) | 1986-06-13 | 1987-12-17 | Rheinmetall Gmbh | Treibladungshuelse |
US5138949A (en) | 1990-09-20 | 1992-08-18 | Olin Corporation | Combustible ammunition cartridge case |
US5323707A (en) | 1991-08-05 | 1994-06-28 | Hercules Incorporated | Consumable low energy layered propellant casing |
DE4318740C2 (de) | 1993-06-05 | 1998-03-12 | Rheinmetall Ind Ag | Munitionseinheit |
-
2007
- 2007-01-04 DE DE102007001655A patent/DE102007001655A1/de not_active Withdrawn
- 2007-12-07 US US12/522,068 patent/US8763534B2/en active Active
- 2007-12-07 KR KR1020097013275A patent/KR101513740B1/ko not_active Application Discontinuation
- 2007-12-07 ES ES07847024.2T patent/ES2461767T3/es active Active
- 2007-12-07 WO PCT/EP2007/010676 patent/WO2008080506A1/de active Application Filing
- 2007-12-07 EP EP07847024.2A patent/EP2106526B1/de active Active
-
2009
- 2009-05-29 ZA ZA200903778A patent/ZA200903778B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
ZA200903778B (en) | 2010-06-30 |
KR101513740B1 (ko) | 2015-04-20 |
WO2008080506A1 (de) | 2008-07-10 |
KR20090106491A (ko) | 2009-10-09 |
DE102007001655A1 (de) | 2008-07-10 |
EP2106526A1 (de) | 2009-10-07 |
US20100018429A1 (en) | 2010-01-28 |
US8763534B2 (en) | 2014-07-01 |
ES2461767T3 (es) | 2014-05-21 |
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