EP0306615B1 - Procédé de fabrication de projectiles à sabot - Google Patents
Procédé de fabrication de projectiles à sabot Download PDFInfo
- Publication number
- EP0306615B1 EP0306615B1 EP88107212A EP88107212A EP0306615B1 EP 0306615 B1 EP0306615 B1 EP 0306615B1 EP 88107212 A EP88107212 A EP 88107212A EP 88107212 A EP88107212 A EP 88107212A EP 0306615 B1 EP0306615 B1 EP 0306615B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sabot
- projectile
- sealing
- annular gap
- projectile body
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
- F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor
- F42B14/061—Sabots for long rod fin stabilised kinetic energy projectiles, i.e. multisegment sabots attached midway on the projectile
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
- F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor
- F42B14/067—Sealing aspects in sabots, e.g. sealing between individual segments of the sabots or sealing between the outer surface of the sabot and the inner surface of the barrel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49863—Assembling or joining with prestressing of part
- Y10T29/4987—Elastic joining of parts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49863—Assembling or joining with prestressing of part
- Y10T29/49876—Assembling or joining with prestressing of part by snap fit
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49888—Subsequently coating
Definitions
- the invention relates to a method for producing a sabot projectile according to the preamble of main claim 1.
- a sub-caliber wing-stabilized sabot projectile in which the sabot has a sealing covering made of vulcanized-on rubber or rubber applied to the rear gas pressure-receiving surface.
- the sabot projectile is placed in a vulcanization tool with an appropriate injection mold.
- the injection mold leaves a thin circular disk-shaped cavity on the rear gas pressure receiving surface of the sabot for the heated sealing material injected in liquid form and seals the sabot on its rear outer circumference and the projectile body over its circumference at a corresponding distance (e.g. 3 up to 8 mm) from the rear gas pressure receiving surface of the sabot.
- the sealing covering fixes the sabot segments in their rear area and seals the joints of the sabot segments against the gas pressure of the propellant gases.
- the liquid sealing compound is usually injected into the injection mold at a high pressure of, for example, 1000 to 1500 bar via a laterally arranged filling opening. After that, the sabot remains at Vulcanization, ie to solidify the rubber mass, for a period of about 10 to 15 minutes at a corresponding temperature of, for example, 150 ° C. in the injection mold or in the vulcanization tool.
- the liquid material may have penetrated irregularly depending on the gap width and injection pressure, this can result in adverse effects in terms of dimensional accuracy and in detaching the sabot segments from the projectile body after firing or after leaving the weapon barrel muzzle; this leads to an uneven detachment of the sabot segments and to a reduction in the quality of the image.
- a sabot projectile is already known, in which a sealing ring between sabot and projectile body is used.
- This sealing ring is inserted in the rear area of the sabot in an inner circumferential annular groove in the sabot segments and is used exclusively for gas sealing between sabot segments and the body circumference.
- the gas sealing of the sabot segments with one another takes place via elongated sealing elements which are inserted into corresponding grooves arranged in the butt joints or parting planes between the individual sabot segments.
- a uniform sealing coating sprayed or vulcanized onto the rear gas pressure receiving surface of the sabot in a special injection mold is not available here, so that the problems and the solution features of the present invention cannot be suggested by this known sabot projectile.
- the sealing ring By sealing the inner gap between the circumference of the projectile body and the rear gas pressure receiving surface of the sabot (inner bore for receiving the projectile body) by means of a simple sealing ring, the penetration of liquid soft rubber or silicone rubber when the sealing material is injected or at the high vulcanization pressure of around 1500 becomes very advantageous bar prevented with certainty.
- an inexpensive way to seal the gap 100 percent without design changes to the sabot, projectile body or spray chamber is specified. This is not a disadvantage Tensioning of the sabot and projectile body more possible.
- the sealing ring very advantageously combines with the injected sealing material to form a unit.
- the reference number 10 in Fig. 1 shows a sabot projectile with a balancing projectile body 11 of high slenderness and a sabot 12, for example in caliber 105 mm or 120 mm.
- a wing or perforated cone tail unit is usually attached to stabilize the wing.
- the sabot is positively via a positive-locking zone 14, for example, a thread toothing with the balancing projectile body 11, which as a training projectile z. B. made of steel or as a missile z. B. consists of tungsten material connected.
- the sabot 12 To hold the individual sabot segments together and to seal the gas pressure against the inner tube wall of a tube weapon, the sabot 12 has a retaining band 15 in the front area of its peripheral surface and a guide band 16 in the rear area.
- a uniform sealing coating 19 is vulcanized to seal the joints between the sabot segments and the annular gap around the circumference of the projectile body 11 against the gas pressure of the propellant gases.
- an annular bead 21 (rolling edge) is provided on the circumference of the projectile body 11 directly behind the positive-locking zone 14.
- FIG. 2 shows the arrangement of a sealing ring 22 on the circumference of the projectile body 11 directly on or in front of the rear gas pressure-receiving surface 18 of the sabot 12.
- This sealing ring 22 prevents the penetration of liquid silicone rubber into the cylindrical annular gap 20 between the sabot and projectile body surface in the injection mold or in the vulcanization tool.
- the sealing ring 22 which consists of the same material as the rubber coating 19, is covered by the sealing compound and subsequently vulcanized into the latter.
- the sealing ring 22 preferably has a circular cross section, since this results in the best fit in the circumferential joint 23 in front of the annular gap 20 and has a 20 to 30%, preferably 25% smaller free inner diameter than the respective projectile body diameter.
- the sealing ring can also have a suitable other cross section (square, oval, triangular).
- the sealing covering 19 and the sealing ring 22 tear along the parting planes (parting lines) of the sabot segments and the sealing covering 19 from the peripheral surface of the projectile body.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Engines (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)
- Fats And Perfumes (AREA)
- Details Of Cameras Including Film Mechanisms (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Claims (3)
- Procédé de fabrication d'un projectile à sabot, dans lequel les segments de sabot sont fixés sur le corps de projectile à l'aide de moyens de maintien et fixés sur une zone à ajustement de forme dans leur position la plus arrière prévue, et pour assurer la fixation et l'étanchéité des différents segments de sabot les uns contre les autres, une couche mince unitaire en caoutchouc, ou en gomme est surmoulée par injection et vulcanisée sur la surface arrière, supportant la pression des gaz, du sabot, dans un outil de vulcanisation avec un moule d'injection, on caractérisé en ce qu'avant introduction du projectile à sabot dans l'outil de vulcanisation, ou bien avant le processus de surmoulage par injection et de vulcanisation, l'interstice annulaire intérieur (20) arrière, entre sabot (12) et corps de projectile (11), est isole de façon étanche par application d'un élément d'étanchéité (22), non vulcanisé et composé du même matériau que le revêtement en caoutchouc (19), sur le joint périphérique (23), devant l'interstice annulaire intérieur (20) du corps de projectile (11), sur la surface arrière (18), supportant la pression des gaz, de telle sorte qu'il n'y ait pas de caoutchouc dans l'interstice annulaire intérieur (20).
- Procédé selon la revendication 1, caractérisé en ce que l'élément d'étanchéité (22) est une bague d'étanchéité (22) présentant de préférence une section transversale circulaire.
- Procédé selon la revendication 2, caractérisé en ce que la bague d'étanchéité (22) présente un diamètre libre inférieur de 20 à 30 %, de préférence de 25 %, au diamètre du corps de projectile.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88107212T ATE91343T1 (de) | 1987-09-10 | 1988-05-05 | Verfahren zur herstellung von treibkaefiggeschossen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3730370 | 1987-09-10 | ||
DE19873730370 DE3730370A1 (de) | 1987-09-10 | 1987-09-10 | Verfahren zur herstellung von treibkaefiggeschossen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0306615A1 EP0306615A1 (fr) | 1989-03-15 |
EP0306615B1 true EP0306615B1 (fr) | 1993-07-07 |
Family
ID=6335683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88107212A Expired - Lifetime EP0306615B1 (fr) | 1987-09-10 | 1988-05-05 | Procédé de fabrication de projectiles à sabot |
Country Status (5)
Country | Link |
---|---|
US (1) | US4941244A (fr) |
EP (1) | EP0306615B1 (fr) |
AT (1) | ATE91343T1 (fr) |
DE (2) | DE3730370A1 (fr) |
IL (1) | IL87284A (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2661739A1 (fr) * | 1990-05-04 | 1991-11-08 | Giat Ind Sa | Dispositif d'etancheite d'un projectile fleche. |
US5227580A (en) * | 1990-05-04 | 1993-07-13 | Giat Industries | Sealing device for an arrow projectile |
DE4028410C2 (de) * | 1990-09-07 | 1995-09-07 | Rheinmetall Ind Gmbh | Verfahren zum Umarbeiten unterkalibriger Wuchtgeschosse |
US5639985A (en) * | 1996-09-04 | 1997-06-17 | The United States Of America As Represented By The Secretary Of The Army | Groove drag mitigation |
USH1999H1 (en) * | 1999-03-03 | 2001-11-06 | The United States Of America As Represented By The Secretary Of The Army | Tuning saboted projectile performance through bourrelet modification |
WO2003036222A1 (fr) * | 2001-10-22 | 2003-05-01 | Armtec Defense Products Co. | Ensemble circulaire a munitions comportant une douille combustible |
US7363861B2 (en) * | 2004-08-13 | 2008-04-29 | Armtec Defense Products Co. | Pyrotechnic systems and associated methods |
US8146502B2 (en) | 2006-01-06 | 2012-04-03 | Armtec Defense Products Co. | Combustible cartridge cased ammunition assembly |
US20100274544A1 (en) * | 2006-03-08 | 2010-10-28 | Armtec Defense Products Co. | Squib simulator |
US7913625B2 (en) * | 2006-04-07 | 2011-03-29 | Armtec Defense Products Co. | Ammunition assembly with alternate load path |
US10632265B2 (en) | 2014-06-20 | 2020-04-28 | Medspray B.V. | Aerosol or spray device, spray nozzle unit and method of manufacturing the same |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1703507A1 (de) * | 1968-05-31 | 1972-03-09 | Rheinmetall Gmbh | Treibkaefig fuer fluegelstabilisierte Unterkalibergeschosse |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US265A (en) * | 1837-07-11 | Machinery for molding candles | ||
US3518339A (en) * | 1965-08-18 | 1970-06-30 | Us Navy | Method for cushioning and sealing |
CH632086A5 (de) * | 1978-08-08 | 1982-09-15 | Oerlikon Buehrle Ag | Verfahren zur herstellung eines treibspiegelgeschosses und nach dem verfahren hergestelltes treibspiegelgeschoss. |
DE2836963A1 (de) * | 1978-08-24 | 1984-03-08 | Rheinmetall GmbH, 4000 Düsseldorf | Munition-einheit fuer rohrwaffen |
US4284008A (en) * | 1979-04-12 | 1981-08-18 | The United States Of America As Represented By The Secretary Of The Army | Double ramp discarding sabot |
DE3037662A1 (de) * | 1980-10-04 | 1982-05-13 | Rheinmetall GmbH, 4000 Düsseldorf | Patronierte munition |
US4444113A (en) * | 1981-04-06 | 1984-04-24 | The United States Of America As Represented By The Secretary Of The Army | High-pressure self-sealing obturator in sabot discard projectile |
US4467724A (en) * | 1982-08-30 | 1984-08-28 | Olin Corporation | Sabot projectile core restraint |
US4459894A (en) * | 1982-09-13 | 1984-07-17 | Olin Corporation | Mold-in-place sabot projectile |
DE3332023A1 (de) * | 1983-09-06 | 1985-03-21 | Helmut Dipl.-Phys. 5529 Bauler Nußbaum | Treibspiegel fuer unterkalibrige geschosse |
DE3332675C2 (de) * | 1983-09-10 | 1986-10-02 | Rheinmetall GmbH, 4000 Düsseldorf | Heckseitige Dichtscheibe aus elastischem Material für einen Treibkäfig |
US4735148A (en) * | 1986-03-18 | 1988-04-05 | United Technologies Corporation | Plastic composite sabot |
US4815682A (en) * | 1987-07-20 | 1989-03-28 | Pacific Armatechnica Corporation | Fin-stabilized subcaliber projectile and method of spin tuning |
US4802415A (en) * | 1987-12-28 | 1989-02-07 | Ford Aerospace Corporation | Telescoped ammunition round having subcaliber projectile sabot with integral piston |
-
1987
- 1987-09-10 DE DE19873730370 patent/DE3730370A1/de not_active Withdrawn
-
1988
- 1988-05-05 DE DE8888107212T patent/DE3882184D1/de not_active Expired - Fee Related
- 1988-05-05 AT AT88107212T patent/ATE91343T1/de not_active IP Right Cessation
- 1988-05-05 EP EP88107212A patent/EP0306615B1/fr not_active Expired - Lifetime
- 1988-08-01 IL IL87284A patent/IL87284A/xx unknown
- 1988-09-06 US US07/240,589 patent/US4941244A/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1703507A1 (de) * | 1968-05-31 | 1972-03-09 | Rheinmetall Gmbh | Treibkaefig fuer fluegelstabilisierte Unterkalibergeschosse |
Also Published As
Publication number | Publication date |
---|---|
ATE91343T1 (de) | 1993-07-15 |
IL87284A0 (en) | 1989-01-31 |
US4941244A (en) | 1990-07-17 |
DE3882184D1 (de) | 1993-08-12 |
EP0306615A1 (fr) | 1989-03-15 |
IL87284A (en) | 1992-08-18 |
DE3730370A1 (de) | 1989-03-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0306615B1 (fr) | Procédé de fabrication de projectiles à sabot | |
DE69415715T2 (de) | Verfahren und Vorrichtung zum Herstellen von Isolatoren | |
EP2179246B1 (fr) | Procédé de fabrication d'un projectile ainsi que projectile | |
DE2140311A1 (fr) | ||
DE69710624T2 (de) | Verfahren zur Herstellung eines Verbundisolators | |
DE8690191U1 (de) | Vorrichtung zum Herstellen eines Treibriemens | |
DE69514770T2 (de) | Verbundisolator und dessen Herstellungsverfahren | |
DD144227A5 (de) | Verfahren und vorrichtung zur herstellung von hohlen formkoerpern | |
DE3435599A1 (de) | Mit gewinde versehene poloeffnungen fuer verbundstoff-druckgefaesse | |
DE2520853A1 (de) | Vfahren und vorrichtung zur kontinuierlichen herstellung von dornschlaeuchen beliebiger abmessungen | |
DE2052220C3 (de) | Verfahren und Vorrichtung zum Herstellen eines Gegenstandes aus Kunststoff mit einem ringförmigen Einschnitt in einer Form | |
DE69318097T2 (de) | Formungsverfahren zur Herstellung von torischen Gegenständen aus einem elastomeren, geschäumten, geschlossenzelligen Werkstoff niedriger Dichte und Vorrichtung dafür | |
DE19925817C1 (de) | Rohrkupplung und Verfahren zu ihrer Herstellung | |
DE2410085B2 (fr) | ||
DE69110212T2 (de) | Dichtungsband für Pfeilgeschoss. | |
EP0027552B1 (fr) | Procédé pour la fabrication de ceintures d'étanchéité pouvant tourner par rapport au projectile et projectiles équipés d'une telle ceinture | |
DE3730427A1 (de) | Anordnung zur befestigung von schlaeuchen an schlauchstutzen | |
DE2253874C3 (de) | Verwendung eines hohlzylindrischen Stützgliedes als Formkern | |
DE2804645A1 (de) | Rohrkupplung | |
DE69305018T2 (de) | Dichtungsband für Pfeilgeschoss | |
DE2320177C3 (de) | Konische Schraubverbindung von Kunststoffrohren | |
DE2752002B2 (de) | Verfahren zur Erzeugung einer verschleißfesten Schicht auf der inneren Oberfläche des Gehäuses eines Doppelschneckenextruders | |
DE2151506A1 (de) | Schlauchverbindung | |
DE4432735A1 (de) | Verfahren und Vorrichtung zum Herstellen von Verbindungsschläuchen und damit hergestellter Schlauch | |
DE2117042A1 (en) | Vulcanising reinforced rubber tube - using electrically heated mandrel |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT CH DE FR GB IT LI NL SE |
|
17P | Request for examination filed |
Effective date: 19890202 |
|
17Q | First examination report despatched |
Effective date: 19900808 |
|
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: RHEINMETALL GMBH |
|
ITF | It: translation for a ep patent filed |
Owner name: CALVANI SALVI E VERONELLI S.R.L. |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT CH DE FR GB IT LI NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19930707 Ref country code: NL Effective date: 19930707 Ref country code: GB Effective date: 19930707 Ref country code: FR Effective date: 19930707 |
|
REF | Corresponds to: |
Ref document number: 91343 Country of ref document: AT Date of ref document: 19930715 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 3882184 Country of ref document: DE Date of ref document: 19930812 |
|
EN | Fr: translation not filed | ||
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 19930707 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Effective date: 19940505 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19940531 Ref country code: CH Effective date: 19940531 |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19960422 Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980203 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050505 |