EP0900996B1 - Method for manufacturing a propellant charge igniter - Google Patents
Method for manufacturing a propellant charge igniter Download PDFInfo
- Publication number
- EP0900996B1 EP0900996B1 EP98114126A EP98114126A EP0900996B1 EP 0900996 B1 EP0900996 B1 EP 0900996B1 EP 98114126 A EP98114126 A EP 98114126A EP 98114126 A EP98114126 A EP 98114126A EP 0900996 B1 EP0900996 B1 EP 0900996B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- ignition
- sealant
- casing
- protecting
- 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
- 238000000034 method Methods 0.000 title claims description 5
- 239000003380 propellant Substances 0.000 title description 8
- 238000004519 manufacturing process Methods 0.000 title description 5
- 239000000565 sealant Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 6
- 235000011837 pasties Nutrition 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 229920002367 Polyisobutene Polymers 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 229920005549 butyl rubber Polymers 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 3
- 230000001681 protective effect Effects 0.000 abstract description 19
- 238000012546 transfer Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000011888 foil Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000020 Nitrocellulose Substances 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/08—Primers; Detonators
- F42C19/0823—Primers or igniters for the initiation or the propellant charge in a cartridged ammunition
- F42C19/0826—Primers or igniters for the initiation or the propellant charge in a cartridged ammunition comprising an elongated perforated tube, i.e. flame tube, for the transmission of the initial energy to the propellant charge, e.g. used for artillery shells and kinetic energy penetrators
Definitions
- the invention relates to a method for producing a Propellant lighter for cartridge ammunition with one Ignition tube containing transfer charge according to the generic term of claim 1.
- From US-A-2 424 993 is a method for producing a propellant lighter for remove cartridge ammunition with an ignition tube containing a transfer charge, the ignition tube being a jacket tube provided with ignition openings and a arranged to protect the transfer charge inside the jacket tube, made of paper existing thin-walled protective tube, the outer wall on the inner wall of the Jacket tube is present and the ignition openings covered and initially the protective tube is inserted into the jacket tube and then the ignition openings of the jacket tube be filled with a tar-containing sealant.
- an ignition delay device which essentially consists of a tubular housing, which front and rear with a disc made of nitrocellulose, plastic, etc. sealed against the ingress of moisture and in which there are several delay blocks and one ignition block.
- the seal the discs are made using a metal, rubber or silicone ring.
- US-A-4 822 649 is a method for producing multiple glazing known, in order to seal against the ingress of moisture between the individual Glass panes a seal made of butyl rubber or a polyisobutylene, among others is provided.
- the present invention is therefore based on the object of a method of the aforementioned Specify the type that avoids the occurrence of micro-gaps.
- the invention is based on the idea of determining the casing tube with a Fill an amount of a paste-like sealant on the base side during processing and fill this Insert the sealant into the jacket tube using the protective tube that is closed on one side, so that it slides into the possible spaces between the casing and protective tube and finally cures. The excess sealant is released from the inside during manufacture pressed out of the exhaust openings and removed on the outside.
- Both 2-component PU adhesives can be used as a sealant (without solvent) as well as pasty one-component sealants, e.g. silicone based, where the sealing means must be chosen such that they good adhesion to what is usually made of plastic Protective tube and to the usually made of metal Have ignition tube.
- sealants have the advantage on that they contain approximately 100% solids and with only a small or no proportion of solvent processed become. During processing and in the curing phase the sealants have a high level of stability with no tendency to flow. The curing can be done physically the withdrawal of small amounts of residual solvent or by diffusing in of moisture leading to chemical cross-linking leads, take place.
- Sealants based on polyisobutylene or butyl rubber base Harden these sealants physically by removing small amounts of solvent.
- the Withdrawal can be accelerated by heating, preferably at approx. 50 ° C become.
- Sealants and adhesives based on silicone or polyurethane which are preferred harden by the entry of moisture or addition of a hardener component. By heating the hardening can also be accelerated with these sealants.
- the above mentioned Sealant in the temperature range between -54 ° C and 71 ° C a sufficiently high deformability, elasticity and elongation, the temperature behavior of the jacket and the protective tube to balance each other.
- 1 is the end region of a cavity 2 and ignition openings 3 Jacketed tube 4 of an ignition tube.
- the cavity 2 of the casing tube 4 is filled with a pasty sealant 5.
- a stamp is turned on from above by means of a stamp, not shown Plastic existing thin-walled protective tube 6 pressed into the cavity 2, so that the sealant 5 is displaced and in the existing, if appropriate, between the protective tube and casing Interspaces distributed.
- the excess of sealant 5 is from the ignition openings 3 pressed and then removed (Fig. 2).
- Transfer charge can be introduced into the ignition tube in a manner known per se.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
- Lighters Containing Fuel (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Cosmetics (AREA)
- Gasket Seals (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Herstellung eines Treibladungsanzünders für patronierte Munition mit einem eine Übertragungsladung enthaltenden Anzündrohr nach dem Oberbegriff des Anspruchs 1.The invention relates to a method for producing a Propellant lighter for cartridge ammunition with one Ignition tube containing transfer charge according to the generic term of claim 1.
Zum Schutz der Übertragungsladung gegen äußere Umgebungseinflüsse (z.B. gegen von außen eindringende Feuchtigkeit oder gegen Bestandteile des den Treibladungsanzünder umgebenden Treibladungspulvers, die durch Ausschwitzen, Migration, Weichmacherwanderung mit der Übertragungsladung in Berührung kommen können) ist bei bekannten Treibladungsanzündern jeweils ein dünnwandiges Schutzrohr vorgesehen, dessen Außenwand bündig an der Innenwand eines mit Anzündöffnungen versehenen Mantelrohres anliegt und diese Öffnungen verdeckt.To protect the transfer charge against external environmental influences (e.g. against moisture penetrating from outside or against components of the surrounding the propellant lighter Propellant powder caused by exudation, migration, Plasticizer migration in contact with the transfer charge can come) with known propellant lighter each a thin-walled protective tube is provided, the outer wall flush with the inner wall of one with ignition openings Jacket tube is applied and these openings covered.
Praktische Erprobungen mit derartigen Treibladungsanzündern haben ergeben, daß zwischen dem Mantelrohr und dem Schutzrohr Mikrospalte auftreten können, die die Schutzwirkung beeinträchtigen. Practical tests with such propellant lighters have shown that between the casing tube and the protective tube Micro-gaps can occur that impair the protective effect.
Aus der US-A-2 424 993 ist ein Verfahren zur Herstellung eines Treibladungsanzünders für patronierte Munition mit einem eine Übertragungsladung enthaltenden Anzündrohr zu entnehmen, wobei das Anzündrohr ein mit Anzündöffnungen versehenes Mantelrohr und ein zum Schutz der Übertragungsladung innerhalb des Mantelrohres angeordnetes, aus Papier bestehendes dünnwandiges Schutzrohr umfaßt, dessen Außenwand an der Innenwand des Mantelrohres anliegt und die Anzündöffnungen verdeckt und wobei zunächst das Schutzrohr in das Mantelrohr eingeschoben wird und anschließend die Anzündöffnungen des Mantelrohres mit einem teerhaltigen Abdichtmittel aufgefüllt werden.From US-A-2 424 993 is a method for producing a propellant lighter for remove cartridge ammunition with an ignition tube containing a transfer charge, the ignition tube being a jacket tube provided with ignition openings and a arranged to protect the transfer charge inside the jacket tube, made of paper existing thin-walled protective tube, the outer wall on the inner wall of the Jacket tube is present and the ignition openings covered and initially the protective tube is inserted into the jacket tube and then the ignition openings of the jacket tube be filled with a tar-containing sealant.
Aus dieser Druckschrift ist es ebenfalls bekannt, auf das Verschließen der Anzündöffnungen durch ein Abdichtmittel zu verzichten und als Schutzrohr ein Papierrohr zu verwenden, welches außenseitig mit einer leicht schmelzenden Metallfolie versehen ist. Nach dem Einbringen des Schutzrohres in das Mantelrohr wird dann die Metallfolie z.B. mittels eines HF-Induktionsofens geschmolzen, so daß das Schutzrohr im Bereich der Anzündöffnungen gegen eindringende Feuchtigkeit durch das Metallfolienmaterial abgedichtet wird.From this publication it is also known to close the ignition openings to dispense with a sealant and to use a paper tube as a protective tube, which is provided on the outside with a slightly melting metal foil. After insertion of the protective tube into the jacket tube, the metal foil is then e.g. using an HF induction furnace melted so that the protective tube against in the area of the ignition openings penetrating moisture is sealed by the metal foil material.
Aus der GB-A-1 534 469 ist eine Zündzeitverzögerungs-Vorrichtung bekannt, die im wesentlichen aus einem rohrförmigen Gehäuse besteht, welches vorder- und heckseitig jeweils mit einer Scheibe aus Nitrocellulose, Kunststoff, etc. gegen eindringende Feuchtigkeit verschlossen ist und in dem sich mehrere Verzögerungssätze sowie ein Anzündsatz befinden. Die Abdichtung der Scheiben erfolgt dabei mittels eines Metall-, Gummi- oder Silikonringes.From GB-A-1 534 469 an ignition delay device is known which essentially consists of a tubular housing, which front and rear with a disc made of nitrocellulose, plastic, etc. sealed against the ingress of moisture and in which there are several delay blocks and one ignition block. The seal the discs are made using a metal, rubber or silicone ring.
Schließlich ist aus der US-A-4 822 649 ein Verfahren zur Herstellung einer Mehrfachverglasung bekannt, bei dem zur Abdichtung gegen eindringende Feuchtigkeit zwischen den einzelnen Glasscheiben eine Dichtung unter anderem aus Butylkautschuk oder einem Polyisobutylen vorgesehen ist.Finally, from US-A-4 822 649 is a method for producing multiple glazing known, in order to seal against the ingress of moisture between the individual Glass panes a seal made of butyl rubber or a polyisobutylene, among others is provided.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren der eingangs erwähnten Art anzugeben, das ein Auftreten von Mikrospalten vermeidet. The present invention is therefore based on the object of a method of the aforementioned Specify the type that avoids the occurrence of micro-gaps.
Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. Weitere vorteilhafte Ausgestaltungen der Erfindung offenbaren die Unteransprüche.This object is solved by the features of claim 1. Further advantageous refinements of the invention are disclosed in the subclaims.
Im wesentlichen liegt der Erfindung der Gedanke zugrunde, das Mantelrohr mit einer ermittelten Menge eines während der Verarbeitung pastösen Abdichtmittels an der Basisseite zu füllen und dieses Abdichtmittel mit Hilfe des einseitig geschlossenen Schutzrohres in das Mantelrohr einzuschieben, so daß es in die möglichen Zwischenräume von Mantel- und Schutzrohr spaltschließend gleitet und abschließend aushärtet. Der Überschuß an Dichtmittel wird während der Herstellung von innen aus den Ausblasöffnungen gedrückt und außen entfernt. Essentially, the invention is based on the idea of determining the casing tube with a Fill an amount of a paste-like sealant on the base side during processing and fill this Insert the sealant into the jacket tube using the protective tube that is closed on one side, so that it slides into the possible spaces between the casing and protective tube and finally cures. The excess sealant is released from the inside during manufacture pressed out of the exhaust openings and removed on the outside.
Als Abdichtmittel können sowohl 2-Komponenten PU-Klebstoffe (ohne Lösungsmittel)als auch pastös eingestellte Einkomponenten-Dichtmittel, z.B. auf Silikonbasis verwendet werden, wobei die Abdichtmittel derart gewählt werden müssen, daß sie eine gute Adhäsion zu dem in der Regel aus Kunststoff bestehenden Schutzrohr und zu dem üblicherweise aus Metall bestehenden Anzündrohr aufweisen.Both 2-component PU adhesives can be used as a sealant (without solvent) as well as pasty one-component sealants, e.g. silicone based, where the sealing means must be chosen such that they good adhesion to what is usually made of plastic Protective tube and to the usually made of metal Have ignition tube.
Entsprechende pastös eingestellte Dichtmittel weisen den Vorteil auf, daß sie annähernd 100% Feststoffe enthalten und mit nur einem geringen oder keinem Anteil an Lösemittel verarbeitet werden. Während der Verarbeitung und in der Aushärtephase weisen die Dichtmittel eine hohe Standfestigkeit ohne Fließneigung auf. Die Aushärtung kann physikalisch durch den Entzug kleiner Restlösemittelmengen oder durch das Eindiffundieren von Feuchte, die zur chemischen Vernetzung führt, erfolgen.Corresponding pasty sealants have the advantage on that they contain approximately 100% solids and with only a small or no proportion of solvent processed become. During processing and in the curing phase the sealants have a high level of stability with no tendency to flow. The curing can be done physically the withdrawal of small amounts of residual solvent or by diffusing in of moisture leading to chemical cross-linking leads, take place.
Bewährt haben sich unter anderem Dichtmittel auf Polyisobutylen- oder Butylkautschukbasis. Diese Dichtmittel härten physikalisch durch Entzug geringer Lösemittelreste aus. Der Entzug kann durch Erwärmung vorzugsweise von ca. 50°C beschleunigt werden.Sealants based on polyisobutylene or butyl rubber base. Harden these sealants physically by removing small amounts of solvent. The Withdrawal can be accelerated by heating, preferably at approx. 50 ° C become.
Dichtmittel und Klebstoffe auf Silikon- oder Polyurethanbasis, die bevorzugt werden, härten durch Zutritt von Feuchte oder Zusatz einer Härterkomponente aus. Durch Erwärmen kann die Aushärtung auch bei diesen Dichtmitteln beschleunigt werden.Sealants and adhesives based on silicone or polyurethane, which are preferred harden by the entry of moisture or addition of a hardener component. By heating the hardening can also be accelerated with these sealants.
Im ausgehärteten Zustand weisen die vorstehend erwähnten Dichtmittel im Temperaturbereich zwischen -54°C und 71°C eine ausreichend hohe Verformbarkeit, Elastizität und Dehnung auf, um das Temperaturverhalten des Mantel- und des Schutzrohres gegeneinander auszugleichen. In the cured state, the above mentioned Sealant in the temperature range between -54 ° C and 71 ° C a sufficiently high deformability, elasticity and elongation, the temperature behavior of the jacket and the protective tube to balance each other.
Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus dem folgenden anhand von Figuren erläuterten Ausführungsbeispiel. Es zeigen:
- Fig.1
- den Längsschnitt durch einen Teil eines mit einem pastösen Abdichtmittel gefüllten Mantelrohres eines Treibladungsanzünders beim Einsenken des Kunststoff-Schutzrohres und
- Fig.2
- den in Fig.1 dargestellten Längsschnitt nach vollständigem Einsenken des Schutzrohres in das Mantelrohr.
- Fig.1
- the longitudinal section through part of a casing tube filled with a pasty sealant of a propellant charge lighter when the plastic protective tube is lowered and
- Fig.2
- the longitudinal section shown in Figure 1 after the protective tube has been completely sunk into the jacket tube.
In den Fig. 1 und 2 ist mit 1 der Endbereich eines einen Hohlraum 2 und Anzündöffnungen 3 aufweisenden
Mantelrohres 4 eines Anzündrohres bezeichnet. Der Hohlraum 2 des Mantelrohres 4 ist
mit einem pastösen Abdichtmittel 5 gefüllt.1 and 2, 1 is the end region of a
Wie Fig.1 zu entnehmen ist, wird von oben mittels eines nicht dargestellten Stempels ein aus
Kunststoff bestehendes dünnwandiges Schutzrohr 6 in den Hohlraum 2 gedrückt, so daß das Abdichtmittel
5 verdrängt wird und sich in den gegebenenfalls zwischen Schutz- und Mantelrohr bestehenden
Zwischenräumen verteilt. Der Überschuß an Abdichtmittel 5 wird aus den Ansündöffnungen
3 gedrückt und anschließend entfernt (Fig.2).As can be seen in FIG. 1, a stamp is turned on from above by means of a stamp, not shown
Plastic existing thin-walled protective tube 6 pressed into the
Nach dem Aushärten des Abdichtmittels 5 kann dann die aus Übersichtlichkeitsgründen nicht dargestellte
Übertragungsladung in an sich bekannter Weise in das Anzündrohr eingebracht werden. After the
- 11
- Endbereich, MantelrohrEnd area, casing pipe
- 22
- Hohlraumcavity
- 33
- Anzündöffnungenignition openings
- 44
- Mantelrohrcasing pipe
- 55
- Abdichtmittelsealing
- 66
- Schutzrohr, einseitig geschlossenProtection tube, closed on one side
Claims (3)
- A process for producing a propelling-charge detonator for cartridged ammunition with a detonating tube containing a booster charge, wherein the detonating tube comprises a casing tube (4) provided with detonating apertures (3) and comprises a thin-walled protecting tube (6) which is arranged for the purpose of protecting the booster charge within the casing tube (4), the outer wall of said protecting tube abutting the inner wall of the casing tube (4) and covering the detonating apertures (3), characterised in that prior to insertion of the protecting tube (6) into the casing tube (4) a pasty sealing compound (5) is introduced into the casing tube (4) and in that the protecting tube (6) is subsequently sunk into the casing tube (4).
- Process according to Claim 1, characterised in that an adhesive is used by way of sealing compound (5).
- Process according to Claim 1, characterised in that a sealant based on polyisobutylene, butyl rubber, silicone or polyethane is used by way of sealing compound (5).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19738419A DE19738419A1 (en) | 1997-09-03 | 1997-09-03 | Method of making a propellant lighter |
| DE19738419 | 1997-09-03 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0900996A2 EP0900996A2 (en) | 1999-03-10 |
| EP0900996A3 EP0900996A3 (en) | 2000-02-23 |
| EP0900996B1 true EP0900996B1 (en) | 2002-04-10 |
Family
ID=7841021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98114126A Expired - Lifetime EP0900996B1 (en) | 1997-09-03 | 1998-07-29 | Method for manufacturing a propellant charge igniter |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6302008B1 (en) |
| EP (1) | EP0900996B1 (en) |
| AT (1) | ATE216064T1 (en) |
| DE (2) | DE19738419A1 (en) |
| ES (1) | ES2173533T3 (en) |
| TR (1) | TR199801729A3 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3976000B2 (en) * | 2003-11-06 | 2007-09-12 | ソニー株式会社 | Information processing apparatus and method, program recording medium, program, and photographing apparatus |
| CN102260126B (en) * | 2011-06-30 | 2012-11-21 | 杨祖一 | Efficient and automatic group-sanding latch waist-bayonet machine for detonators |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2424993A (en) * | 1944-04-19 | 1947-08-05 | Meister Leo | Sealing flash holes of primers |
| US2455380A (en) * | 1945-05-07 | 1948-12-07 | Leo T Meister | Method of manufacturing primers |
| US3311013A (en) * | 1963-01-09 | 1967-03-28 | Aerojet General Co | Propellant liner |
| NL7706606A (en) * | 1976-07-01 | 1978-01-03 | Hagenuk & Co Gmbh | DELAYED IGNITION. |
| DE3775430D1 (en) * | 1986-02-20 | 1992-02-06 | Saint Gobain Vitrage | MULTIPLE GLAZING, AND MANUFACTURING METHOD AND DEVICE THEREFOR. |
| DE4445991A1 (en) * | 1994-12-22 | 1996-06-27 | Rheinmetall Ind Gmbh | Ignition system for propellant charges and method for producing such ignition systems |
-
1997
- 1997-09-03 DE DE19738419A patent/DE19738419A1/en not_active Ceased
-
1998
- 1998-07-29 AT AT98114126T patent/ATE216064T1/en not_active IP Right Cessation
- 1998-07-29 ES ES98114126T patent/ES2173533T3/en not_active Expired - Lifetime
- 1998-07-29 EP EP98114126A patent/EP0900996B1/en not_active Expired - Lifetime
- 1998-07-29 DE DE59803702T patent/DE59803702D1/en not_active Expired - Fee Related
- 1998-09-02 US US09/145,547 patent/US6302008B1/en not_active Expired - Fee Related
- 1998-09-02 TR TR1998/01729A patent/TR199801729A3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| TR199801729A2 (en) | 1999-03-22 |
| TR199801729A3 (en) | 1999-03-22 |
| US6302008B1 (en) | 2001-10-16 |
| DE59803702D1 (en) | 2002-05-16 |
| EP0900996A2 (en) | 1999-03-10 |
| EP0900996A3 (en) | 2000-02-23 |
| ATE216064T1 (en) | 2002-04-15 |
| DE19738419A1 (en) | 1999-03-04 |
| ES2173533T3 (en) | 2002-10-16 |
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