DE598716C - Process for the production of spherical hollow bodies - Google Patents

Process for the production of spherical hollow bodies

Info

Publication number
DE598716C
DE598716C DED63803D DED0063803D DE598716C DE 598716 C DE598716 C DE 598716C DE D63803 D DED63803 D DE D63803D DE D0063803 D DED0063803 D DE D0063803D DE 598716 C DE598716 C DE 598716C
Authority
DE
Germany
Prior art keywords
production
spherical
hollow bodies
constriction
spherical hollow
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
DED63803D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
Publication date
Priority to DED63803D priority Critical patent/DE598716C/en
Application granted granted Critical
Publication of DE598716C publication Critical patent/DE598716C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/047—Mould construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/02—Making hollow objects characterised by the structure of the objects
    • B21D51/08—Making hollow objects characterised by the structure of the objects ball-shaped objects

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Description

In dem Hauptpatent ist ein Behälter zur Aufnahme hochgespannter Gase beschrieben, der aus einer Reihe sich überschneidender Kugelzonen (Kugelstab) besteht und gegen' über einem zylindrischen Behälter ein wesentlich erhöhtes Fassungsvermögen aufweist. Die Herstellung eines solchen Behälters in Kugelstabform aus einem Hohlzylinder geschieht dadurch, daß der Ausgangszylinder in bestimmten Abständen eingeschnürt und zwischen den eingeschnürten Stellen durch inneren Überdruck zur Kugelform aufgeweitet wird. Die auf diese Weise hergestellten Hohlkörper in Kugelstabform weisen jedoch in den Übergangsstellen zwischen zwei Kugelzonen wider Erwarten nicht die notwendige Festigkeit auf. In the main patent, a container for holding high-tension gases is described, which consists of a series of intersecting spherical zones (spherical rod) and against ' has a significantly increased capacity over a cylindrical container. the Production of such a container is done in the shape of a spherical rod from a hollow cylinder in that the output cylinder is constricted at certain intervals and between the constricted areas is expanded to a spherical shape by internal overpressure. The hollow bodies produced in this way However, in the shape of a spherical rod, they point in the transition points between two spherical zones contrary to expectations, does not have the necessary strength.

Gegenstand vorliegender Erfindung ist ein Verfahren, die vor dem Aufblasen der kugelförmigen Teile stattfindende Einschnürung der Übergangsstellen so auszuführen, daß letztere die notwendige Festigkeit aufweisen. Es wurde gefunden, daß die mangelhafte Festigkeit der Übergangsstellen daher rührt, daß beim Aufblähen der kugelförmigen Teile Material aus den Übergangsstellen herausgezogen wird. Erfindungsgemäß wird die Einschnürung der Übergangsstellen vor dem Aufblähen der kugelförmigen Teile durch einen Walz- oder Preßvorgang daher in der Weise durchgeführt, daß die stärkste Materialanhäufung in der Mitte der Einschnürungsstellen, insbesondere nach außen hin erzielt wird. Die Walz- oder Preßwerkzeuge, mit denen die Einschnürung vorgenommen wird, 4 werden zu diesem Zweck mit Hohlkehlen o. dgl. versehen, die das bei der Umfangsverkleinerung infolge der Einschnürung des Ausgangszylinders sich sammelnde Material in der Mitte der Einschnürung, insbesondere am äußeren Umfange, anhäufen.The subject of the present invention is a method to carry out the constriction of the transition points, which takes place before the inflation of the spherical parts, in such a way that the latter have the necessary strength. It has been found that the inadequate strength of the transition points is due to the fact that material is drawn out of the transition points when the spherical parts are expanded. According to the invention, the constriction of the transition points prior to the expansion of the spherical parts by a rolling or pressing process is therefore carried out in such a way that the greatest accumulation of material is achieved in the middle of the constriction points, in particular towards the outside. The rolling or pressing tools with which the constriction is carried out 4 are provided for this purpose with fillets or the like, which the material that collects during the circumferential reduction due to the constriction of the output cylinder in the center of the constriction, in particular at the outer circumference, pile up.

In der Zeichnung ist als Beispiel ein Schnitt durch eine derartige Übergangsstelle b zwischen zwei Kugelzonen α dargestellt, die mittels der konkaven Rolle c durch Einschnüren des Ausgangszylinders hergestellt wurde und die aus der Figur ersichtliche Materialverstärkung in der Mitte der Einschnürung besitzt. Wenn aus einer derartigen Übergangsstelle beim Aufblähen der kugelförmigen Teile Material herausgezogen wird, so wird dies von der verstärkten Mitte geliefert, ohne daß die Übergangsstelle hierdurch eine unzulässige Schwächung erfährt.In the drawing, a section through such a transition point b between two spherical zones α is shown as an example, which was produced by means of the concave roller c by constricting the output cylinder and has the material reinforcement in the middle of the constriction shown in the figure. If material is withdrawn from such a transition point when the spherical parts are inflated, this is supplied by the reinforced center without the transition point experiencing an impermissible weakening as a result.

Claims (2)

Patentansprüche:Patent claims: 1. Verfahren zur Herstellung von kugelstabförmigen Hohlkörpern nach Patent 576315, wobei der Durchmesser des Ausgangszylinders an den Stellen der Einschnürungen des Kugelstabes verkleinert wird, dadurch gekennzeichnet, daß beim Einschnüren in der Mitte des Rillengrundes die stärkste nach, außen liegende Materialanhäufung erzeugt wird.1. Process for the production of spherical rod-shaped hollow bodies according to patent 576315, where the diameter of the starting cylinder is reduced in size at the points of the constrictions of the ball bar, characterized in that the Constriction in the middle of the bottom of the groove is the strongest outward accumulation of material is produced. 2. Werkzeuge zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß Walz- oder Preßwerkzeuge verwendet werden, die mit Hohlkehlen versehen sind.2. Tools for performing the method according to claim 1, characterized in that that rolling or pressing tools are used, which are provided with fillets. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DED63803D Process for the production of spherical hollow bodies Expired DE598716C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED63803D DE598716C (en) Process for the production of spherical hollow bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED63803D DE598716C (en) Process for the production of spherical hollow bodies

Publications (1)

Publication Number Publication Date
DE598716C true DE598716C (en) 1934-06-18

Family

ID=7058791

Family Applications (1)

Application Number Title Priority Date Filing Date
DED63803D Expired DE598716C (en) Process for the production of spherical hollow bodies

Country Status (1)

Country Link
DE (1) DE598716C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE872485C (en) * 1944-11-23 1953-04-02 Karlsruhe Augsburg Iweka Method and device for the production of hollow profiled bodies, in particular high-pressure gas cylinders
DE941273C (en) * 1952-04-16 1956-04-05 Mannesmann Ag Process for the production of spherical bar-shaped containers for holding high-tension gases

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE872485C (en) * 1944-11-23 1953-04-02 Karlsruhe Augsburg Iweka Method and device for the production of hollow profiled bodies, in particular high-pressure gas cylinders
DE941273C (en) * 1952-04-16 1956-04-05 Mannesmann Ag Process for the production of spherical bar-shaped containers for holding high-tension gases

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