EP0794848B1 - Verfahren und vorrichtung zum zerschneiden eines körpers aus festen explosivstoffen, insbesondere composite-raketentreibstoffen - Google Patents
Verfahren und vorrichtung zum zerschneiden eines körpers aus festen explosivstoffen, insbesondere composite-raketentreibstoffen Download PDFInfo
- Publication number
- EP0794848B1 EP0794848B1 EP95935948A EP95935948A EP0794848B1 EP 0794848 B1 EP0794848 B1 EP 0794848B1 EP 95935948 A EP95935948 A EP 95935948A EP 95935948 A EP95935948 A EP 95935948A EP 0794848 B1 EP0794848 B1 EP 0794848B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- water jet
- composite rocket
- cutting
- pressure water
- 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
- F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
- F42B33/06—Dismantling fuzes, cartridges, projectiles, missiles, rockets or bombs
- F42B33/062—Dismantling fuzes, cartridges, projectiles, missiles, rockets or bombs by high-pressure water jet means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
- B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D7/02—Means for holding or positioning work with clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F3/00—Severing by means other than cutting; Apparatus therefor
- B26F3/004—Severing by means other than cutting; Apparatus therefor by means of a fluid jet
-
- 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
- C06B21/0091—Elimination of undesirable or temporary components of an intermediate or finished product, e.g. making porous or low density products, purifying, stabilising, drying; Deactivating; Reclaiming
-
- 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
- F42B33/008—Cutting explosive or propulsive charges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D2007/013—Means for holding or positioning work the work being tubes, rods or logs
-
- 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
- Y10T83/00—Cutting
- Y10T83/04—Processes
- Y10T83/0591—Cutting by direct application of fluent pressure to work
Definitions
- the invention relates to a method with a device for cutting a body made of solid explosives.
- Solid explosives are used in relatively large quantities or quantities in solid rockets and all types of engines, such as surface-to-air, surface-to-surface and air-to-air missiles. Such large numbers of such rockets and engines are in storage for storage and are to be processed or recycled or destroyed. This requires safe, ecologically clean and efficient technologies.
- the composite fuels used for solid rockets have a high proportion of 60 to 80% of an oxygen carrier and aluminum in powder form in a range of 5 to 10%.
- Ammonium perchlorate, potassium perchlorate or ammonium nitrate are generally used as oxygen carriers. It should be noted that, for example, ammonium perchlorate (NH 4 ClO 4 ) at 240 ° C releases chlorine as a strong respiratory poison and oxygen to support combustion.
- solid fuels have the problem that they have the ability to become statically charged when they are processed. Static charges can lead to voltages of up to 1000 V. The inevitably occurring electrical discharges cannot ignite the solid fuel due to their short lifespan, but can ignite the powder dust that arises during dry processing, such as sawing, grinding, etc. which in turn can lead to ignition of the solid fuel. Solid rocket fuels also have a high sensitivity to impact and friction.
- WO-A-94 00275 describes a water jet cutting method and the composition a water jet using abrasive Described particles.
- This cutting process also becomes reactive Materials such as Explosives, fuels, flammable substances, combustible substance and the like applied.
- the process is designed that the water jet used in the cutting process one on the Penetrate the surface of a solution to be cut got to.
- the water jet an abrasive fluid and optionally a surface-active substance attached. This beam composed in this way is directed towards the cutting substrate directed.
- a combustion of solid rocket fuels without prior portioning is especially in long range missile rocket engines because of the high proportion of fuel mass in the total mass of Missile not realizable.
- a procedure for cutting up a body is made solid explosives, especially composite rocket fuels.
- a high-pressure water jet emerging from a nozzle onto the body solid explosive directed at the same time the nozzle and the body a relative movement made of solid explosive during cutting run towards each other.
- the use of high pressure water beam as a cutting tool effectively avoids that of others mechanical separation processes occurring dangerous thermal Effects, e.g. the thermal energy generated during cutting the water acting as a coolant is removed.
- Another The main advantage is that the process under ambient pressure conditions run and at the same time an unintended Inflammation of the solid fuel can be prevented.
- the method for Cutting bodies made of solid explosives into one Composite rocket fuel body applied will be the high pressure water jet Abrasive particles added.
- the cutting feed movement can either be done by fixing the position the nozzle and moving the body from composite rocket fuel, by moving the nozzle and fixing the body or by moving from both the body and the nozzle.
- a cutting feed movement takes place around at least two axes, around curved or to be able to achieve inclined cutting surfaces.
- a Pressure in the range of 30 to 120 MPa from the nozzle.
- the composite rocket fuel is in a casing, in a further exemplary embodiment, this can be done by high-pressure water jet cutting inside the casing between the inner surface of the casing and the outer surface of the Composite rocket fuel is made to the body from composite rocket fuel peel out of the casing.
- the formwork is without cutting the fuel body and the casing possible because there is a binder between the body and the casing located.
- the cutting feed movements of nozzle and / or body made of composite rocket fuel and selected High pressure water jet parameters such as Outlet pressure, Beam diameter, beam focusing, proportion of abrasive particles in the High pressure water jet, etc. can be controlled remotely.
- Fig. 1a is a side view of a cutting table 5 with means Tension straps 3 stretched body 1 made of composite rocket fuel shown, which is a body 1 of relatively small fuel mass acts.
- the carrier 15 for fastening the displaceable nozzle holder 6 for the Nozzle 7 is shown in Fig. 1b).
- Controller stepper motor is controlled, both on the carrier in Transverse direction to the guide frame 13 as well as with the carrier in Longitudinal direction on the guide frame 13 by a second drive device is slidably arranged, both cuts in the transverse direction of the body 1 made of composite rocket fuel as well its longitudinal direction parallel to the longitudinal axis or by simultaneous Movement of the nozzle holder 6 on the carrier 15 and on the guide frame 13 are generated in inclined surfaces.
- This can a portioning of the monolithic body 1 made of composite rocket fuel can be realized in any size units.
- FIG. 2a is a side end view of a body 8 made of a composite rocket fuel shown larger mass, which on two in the longitudinal direction extending through a second drive device 9 driven rollers is mounted on the lower area, the Body 8 is in an envelope, preferably made of metal is and extends over the longitudinal extension of the body 8.
- the second drive device 9 becomes the body 8 with the metallic one Envelope 10 brought into rotation about its longitudinal axis.
- the nozzle holder 6 On a frame 14 attached to the cutting table 5 is the nozzle holder 6 arranged with the nozzle 7 for the high-pressure water jet 2, that the water jet in a region of the end face 11 of the body 8 2b), which is ring-shaped between the inside of the metallic sheath 10 and the outside of the body 8 Composite rocket fuel is located.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Disintegrating Or Milling (AREA)
Abstract
Description
- Fig. 1a)
- eine Seitenansicht mit auf dem Schneidtisch aufgespanntem zu zerschneidendem Körper mit einem an einem Rahmen verschiebbar angeordneten Düsenhalter;
- Fig. 1b)
- eine Draufsicht der Anordnung von Fig. 1a);
- Fig. 2a)
- eine Stirnseitenansicht eines auf Antriebsrollen gelagerten Körpers aus Composite-Raketentreibstoff bei feststehend angeordneter Düse;
- Fig. 2b)
- eine Seitenlängsansicht der Anordnung von Fig. 2a).
Claims (5)
- Verfahren zum Portionieren eines Körpers (8), welcher Composite-Raketentreibstoff aufweist, bei welchem ein aus einer Düse (7) austretender Hochdruckwasserstrahl (2) auf den Körper gerichtet wird und die Düse und der Körper während des Portionierens eine Relativbewegung zueinander ausführen,
dadurch gekennzeichnet, daßder Körper (8) bei Anordnung in einer Umhüllung (10) um eine Längsachse rotiert wird und gleichzeitig der Hochdruckwasserstrahl (2) ringförmig zwischen der Innenseite der Umhüllung und der Außenseite des Körpers aus Composite-Raketentreibstoff zum Herausschälen des Körpers aus der Umhüllung gerichtet wird; undder Körper unter Umgebungsdruckbedingungen ohne Entzündungsgefahr zerteilt wird. - Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Hochdruckwasserstrahl abrasive Schleifpartikel enthält.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Düse oder der Körper eine Schneidvorschubbewegung um mindestens zwei Achsen ausführen.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Hochdruckwasserstrahl mit einem Druck im Bereich von 30 bis 120 MPa aus der Düse austritt.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Schneidvorschubbewegungen der Düse und/oder des Körpers sowie die Parameter des Hochdruckwasserstrahls ferngesteuert werden.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4440208A DE4440208A1 (de) | 1994-11-10 | 1994-11-10 | Verfahren und Vorrichtung zum Zerschneiden eines Körpers aus festen Explosivstoffen, insbesondere Composite-Raketentreibstoffen |
DE4440208 | 1994-11-10 | ||
PCT/EP1995/004104 WO1996014961A1 (de) | 1994-11-10 | 1995-10-19 | Verfahren und vorrichtung zum zerschneiden eines körpers aus festen explosivstoffen, insbesondere composite-raketentreibstoffen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0794848A1 EP0794848A1 (de) | 1997-09-17 |
EP0794848B1 true EP0794848B1 (de) | 1999-08-04 |
Family
ID=6532997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95935948A Expired - Lifetime EP0794848B1 (de) | 1994-11-10 | 1995-10-19 | Verfahren und vorrichtung zum zerschneiden eines körpers aus festen explosivstoffen, insbesondere composite-raketentreibstoffen |
Country Status (5)
Country | Link |
---|---|
US (1) | US5941466A (de) |
EP (1) | EP0794848B1 (de) |
DE (2) | DE4440208A1 (de) |
IL (1) | IL115926A (de) |
WO (1) | WO1996014961A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9715014D0 (en) * | 1997-07-18 | 1997-09-24 | Secr Defence | Two phase cutting device |
GB2359775A (en) | 2000-02-25 | 2001-09-05 | Disarmco Ltd | Apparatus for cutting holes in munitions |
US6615695B1 (en) * | 2000-06-27 | 2003-09-09 | Medtronic, Inc. | Alternative fabrication method for spiral electrodes |
US6899007B1 (en) * | 2002-04-10 | 2005-05-31 | George R. Blankenship | Self-contained mobile chassis for bomb deactivation |
WO2004106841A2 (en) * | 2003-05-23 | 2004-12-09 | Gradient Technology | Process for accessing munitions using fluid jet technology |
FR2857357B1 (fr) * | 2003-07-10 | 2005-08-19 | Snpe Materiaux Energetiques | Procede et installation de destruction de moteurs a propergol solide |
DE102004034784B4 (de) * | 2004-07-09 | 2009-08-27 | Spreewerk Lübben GmbH | Verfahren und Vorrichtung zur Delaborierung von explosivstoffhaltigen Körpern |
FR2882534B1 (fr) * | 2005-02-28 | 2008-09-26 | Philippe Crelier | Procede de decoupe simultanee de materiaux heterogenes et son dispositif de mise en oeuvre |
US7947047B2 (en) * | 2005-06-20 | 2011-05-24 | Ams Research Corporation | Medical screwdrivers and methods |
CN102873412A (zh) * | 2012-10-11 | 2013-01-16 | 南京工艺装备制造有限公司 | 一种水刀加工丝杠滚道的方法 |
DE102015221273A1 (de) * | 2015-10-30 | 2017-05-04 | Siemens Aktiengesellschaft | Wasserstrahlschneidverfahren, Wasserstrahlschneidmaschine und Werkstückaufnahme |
CN110948552A (zh) * | 2019-12-21 | 2020-04-03 | 武汉亚联塑业有限公司 | 一种pvc管切割装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2092083A (en) * | 1937-01-21 | 1937-09-07 | Liberty Mirror Works | Apparatus for cutting openings by abrasion |
US4793866A (en) * | 1985-12-13 | 1988-12-27 | Morton Thiokol, Inc. | Method and apparatus for removing solid propellant from rocket motor cases |
US5001870A (en) * | 1987-10-05 | 1991-03-26 | Kajima Corporation | Method of cutting and disassembling cylindrical structure |
DE8807176U1 (de) * | 1988-03-08 | 1988-07-28 | Horst Witte Entwicklungs- und Vertriebs KG, 2122 Bleckede | Aufspannvorrichtung für Werkstücke |
DE3913479C1 (en) * | 1989-04-24 | 1990-08-23 | Dr. Ing. Koehler Gmbh Ingenieurbuero, 3150 Peine, De | Disarming toxic and/or explosive objects - involves dismantling based on investigation on measuring after transport in plastics jacket |
US5025632A (en) * | 1989-06-13 | 1991-06-25 | General Atomics | Method and apparatus for cryogenic removal of solid materials |
DE4128703A1 (de) * | 1991-08-29 | 1993-03-04 | Dietmar Dr Ing Rath | Verfahren und vorrichtung zum universellen entschaerfen von munition und sprengstoffen aller art und in allen bereichen |
CA2090371A1 (en) * | 1992-03-27 | 1993-09-28 | William Frank Banholzer | Water jet mixing tubes used in water jet cutting devices and method of preparation thereof |
US5363603A (en) * | 1992-06-22 | 1994-11-15 | Alliant Techsystems, Inc. | Abrasive fluid jet cutting compositon and method |
DE4221666C1 (de) * | 1992-07-02 | 1994-01-27 | Alba Ind & Umweltschutzservice | Verfahren zum Öffnen von explosivstoffhaltigen Körpern |
JPH06320426A (ja) * | 1992-10-17 | 1994-11-22 | Saechsische Werkzeug & Sondermas Gmbh | 流体ジェット噴流式切断装置用の液体・研磨材粒子供給装置 |
-
1994
- 1994-11-10 DE DE4440208A patent/DE4440208A1/de not_active Ceased
-
1995
- 1995-10-19 DE DE59506547T patent/DE59506547D1/de not_active Expired - Fee Related
- 1995-10-19 EP EP95935948A patent/EP0794848B1/de not_active Expired - Lifetime
- 1995-10-19 WO PCT/EP1995/004104 patent/WO1996014961A1/de active IP Right Grant
- 1995-10-19 US US08/836,432 patent/US5941466A/en not_active Expired - Fee Related
- 1995-11-09 IL IL11592695A patent/IL115926A/xx active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
WO1996014961A1 (de) | 1996-05-23 |
DE4440208A1 (de) | 1996-05-15 |
IL115926A0 (en) | 1996-01-31 |
DE59506547D1 (de) | 1999-09-09 |
US5941466A (en) | 1999-08-24 |
IL115926A (en) | 1999-12-22 |
EP0794848A1 (de) | 1997-09-17 |
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