DE715246C - Apparatus for the production of radially asymmetrical low-smoke powder - Google Patents

Apparatus for the production of radially asymmetrical low-smoke powder

Info

Publication number
DE715246C
DE715246C DEW106754D DEW0106754D DE715246C DE 715246 C DE715246 C DE 715246C DE W106754 D DEW106754 D DE W106754D DE W0106754 D DEW0106754 D DE W0106754D DE 715246 C DE715246 C DE 715246C
Authority
DE
Germany
Prior art keywords
powder
production
strands
die
asymmetrical low
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
Application number
DEW106754D
Other languages
German (de)
Inventor
Dipl-Dhemiter Theodor Geitmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WESTF ANHALTISCHE SPRENGSTOFF
Original Assignee
WESTF ANHALTISCHE SPRENGSTOFF
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WESTF ANHALTISCHE SPRENGSTOFF filed Critical WESTF ANHALTISCHE SPRENGSTOFF
Priority to DEW106754D priority Critical patent/DE715246C/en
Application granted granted Critical
Publication of DE715246C publication Critical patent/DE715246C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C06B21/0033—Shaping the mixture
    • C06B21/0075—Shaping the mixture by extrusion

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Description

Vorrichtung zur Herstellung von radialunsynhnetrischem rauchschwachem Pulver Es ist bekannt, rauchschwaches Pulver durch Pressen in Strangform herzustellen. Will man ein Pulver in Röhrenform anfertigen, So verwendet man Matrizen, in denen ein Dorn angeordnet ist. Auf diese Art werden in erster Linie Pulverstränge von radialsymmetrischem, z. B. einem kreisförmigen, ringförmigen oder polygonalen Querschnitt hergestellt.Apparatus for the Production of Radially Unsynhnetric Low-Smoky Powder It is known to produce low-smoke powder in extrudate form by pressing. If one wants to make a powder in a tubular form, How to use matrices in which a mandrel is arranged. In this way, powder strands of radially symmetrical, z. B. made a circular, ring-shaped or polygonal cross-section.

Wie Versuche gezeigt haben, lassen sich mittels des üblichen Pressens durch Matrizen radialunsyminetrische Pulver gröf?cren Querschnitts, insbesondere Röhrenpulver mit einer unsymmetrischen Auf.',enfläche und einer unsymmetrischen Bohrung, nicht herstellen. Die Spannungen in den frischen Pulversträngen sind so groß, daß sich das Pulver nach dem Verlassen der Matrize verzieht. Bei fier Fertigung von Pulver der beschriebenen Art in Röhrenform tritt noch die Schwierigkeit auf, daij durch die ungleichmäßige Beanspruchung des in der Matrize angeordneten Dorns dieser leicht verbiegt oder abgebrochen wird.As tests have shown, can be by means of the usual pressing through matrices radially asymmetrical powder of larger cross-section, in particular Tube powder with an asymmetrical surface and an asymmetrical surface Bore, do not produce. The tensions in the fresh powder strands are like that large that the powder warps after leaving the die. With four manufacturing of powder of the type described in tubular form, the difficulty arises, daij due to the uneven loading of the mandrel arranged in the die this is easily bent or broken off.

Es wurde nun gefunden, daß matt einwandfreie radialunsymmetrische Pulverstränge oder Röhren erhalten kann, wenn man erfindungsgemäß unter der Austrittsöffnung der Matrize ein oder mehrere Messer anbringt, deren Schneide nach oben gerichtet ist. Von den aus der Matrize zunächst radialsy-mmetrisch austretenden Strängen oder Röhren werden entsprechende Stücke abgeschnitten, so daß man Pulver des gewünschten Querschnitts erhält. Da die Messer dicht unterhalb der Matrize angebracht sind, können die noch plastischen Stränge nicht ausweichen.It has now been found that matte perfect radial asymmetric Powder strands or tubes can be obtained if, according to the invention, under the outlet opening one or more knives are attached to the die with the cutting edge pointing upwards is. From the strands or strands that initially emerge radially symmetrically from the die Tubes are cut off appropriate pieces so that you get powder of the desired Cross-section receives. Since the knives are attached just below the die, the strands that are still plastic cannot evade.

In der Abbildung ist beispielsweise eine Vorrichtung gemäß der Erfindung mit einem :Messer wiedergegeben. Aus der Matrizen der Pulverpresse, in der sich der Dorn b h@etindet, tritt ein Pulverstrang c von ringförmigem Querschnitt .aus, Direkt unterhalb der Austrittsöffnung der Matrize ist ein Messer d fest angebracht, durch welches von dem Strang ein Streifen e laufend abgeschnitten wird, so daß der Strang den Querschnitt f erhält.In the figure, for example, is a device according to the invention reproduced with a: knife. From the dies of the powder press, in which the mandrel b h @ etindet, emerges a powder strand c with an annular cross-section .aus, A knife d is firmly attached directly below the outlet opening of the die, through which a strip e is cut continuously from the strand, so that the Strand receives the cross-section f.

Claims (1)

PATENTANSPRUCH : Vorrichtung zur Herstellung von radialunsvmmetrischem rauchschwachem Ptilver@in Form von Strängen oder Röhren durch Pressen mittels einer Matrize üblicher Bauweise, dadurch gekennzeichnet, d:aß unter der Austrittsöfinung der 1Iatrize ein oder mehrere mit der Schneide nach oben gerichtete Messer fest ang,:-bracht sind, die während des 1'rehvorganges von den aus der Matrize austret,iiden Pulversträngen oder Röhren entsprechende Stücke abschneiden.PATENT CLAIM: Device for the production of radialunsvmmetric low-smoke Ptilver @ in the form of strands or tubes by pressing by means of a Die of conventional construction, characterized in that d: aß under the outlet opening one or more knives with the cutting edge pointing upwards nec,: - are brought in that emerge from the die during the turning process Cut off appropriate pieces of powder strands or tubes.
DEW106754D 1940-01-13 1940-01-13 Apparatus for the production of radially asymmetrical low-smoke powder Expired DE715246C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW106754D DE715246C (en) 1940-01-13 1940-01-13 Apparatus for the production of radially asymmetrical low-smoke powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW106754D DE715246C (en) 1940-01-13 1940-01-13 Apparatus for the production of radially asymmetrical low-smoke powder

Publications (1)

Publication Number Publication Date
DE715246C true DE715246C (en) 1941-12-17

Family

ID=7616645

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW106754D Expired DE715246C (en) 1940-01-13 1940-01-13 Apparatus for the production of radially asymmetrical low-smoke powder

Country Status (1)

Country Link
DE (1) DE715246C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2573751A1 (en) * 1984-11-26 1986-05-30 Poudres & Explosifs Ste Nale Propellent powder strands, process for their manufacture and propellent charges in the form of bundles made up from these strands.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2573751A1 (en) * 1984-11-26 1986-05-30 Poudres & Explosifs Ste Nale Propellent powder strands, process for their manufacture and propellent charges in the form of bundles made up from these strands.

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