DE1195471B - Process for the production of hollow bodies - Google Patents

Process for the production of hollow bodies

Info

Publication number
DE1195471B
DE1195471B DEM55652A DEM0055652A DE1195471B DE 1195471 B DE1195471 B DE 1195471B DE M55652 A DEM55652 A DE M55652A DE M0055652 A DEM0055652 A DE M0055652A DE 1195471 B DE1195471 B DE 1195471B
Authority
DE
Germany
Prior art keywords
hollow body
shells
production
hollow bodies
casting mold
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.)
Pending
Application number
DEM55652A
Other languages
German (de)
Inventor
Horst Meyer
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
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 Individual filed Critical Individual
Priority to DEM55652A priority Critical patent/DE1195471B/en
Publication of DE1195471B publication Critical patent/DE1195471B/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)

Description

Verfahren zur Herstellung von Hohlkörpern Die vorliegende Erfindung betrifft ein Verfahren zum Herstellen von Hohlkörpern, insbesondere Bällen, aus Polyvinylchlorid (PVC) durch Zusammenfügen vorgefertigter Hohlkörperhalbschalen unter Anwendung eines Gießvorganges zur Bildung der Hohlkörperwandung, bei dem zunächst Hohlkörperhalbschalen aus einer durchsichtigen PVC-Folie hergestellt und in Stützformen eingelegt werden und anschließend in diese Schalen die PVC-Paste zur Bildung der Hohlkörperwandung eingebracht wird.Process for the production of hollow bodies The present invention relates to a method for producing hollow bodies, in particular balls Polyvinyl chloride (PVC) by joining together prefabricated hollow body half-shells using a casting process to form the hollow body wall, in which initially Hollow body half-shells made of a transparent PVC film and in support forms are inserted and then in these shells the PVC paste to form the Hollow body wall is introduced.

Bei diesem bekannten Verfahren werden somit zunächst die Hohlkörperhälften hergestellt und in einem anschließenden Arbeitsgang werden diese Hohlkörperhälften miteinander vereinigt. In this known method, the hollow body halves are thus first produced and in a subsequent operation, these hollow body halves are united with each other.

Das Ziel der vorliegenden Erfindung besteht nun darin, das Verfahren in der Weise zu vereinfachen, daß eine Einzelherstellung fertiger Hohlkörperhälften und eine anschließende Vereinigung derselben entfällt und stattdessen in einem einzigen Arbeitsgang das Herstellen der Hohlkörperwandung und das Vereinigen der beiden Hohlkörperhälften erfolgt. The aim of the present invention is now the method to simplify in such a way that a single production of finished hollow body halves and a subsequent union of these is omitted and instead in a single one The process involves producing the wall of the hollow body and combining the two halves of the hollow body he follows.

Zur Erreichung dieses Zieles werden erfindungsgemäß die Hohlkörperhalbschalen in die Halbschalen einer Schleudergußform eingelegt, dann wird die gelierfähige PVC-Masse in eine der ausgelegten Formen eingebracht, die Schleudergußform geschlossen und die PVC-Masse durch Schleudern über die ganze Innenfläche verteilt und durch Wärmeeinwirkung verfestigt. According to the invention, the hollow body half-shells are used to achieve this goal placed in the half-shells of a centrifugal casting mold, then the gellable PVC compound poured into one of the designed molds, the centrifugal casting mold closed and the PVC compound is spread over the entire inner surface by centrifuging and through Solidified by the action of heat.

An Hand der Zeichnung ist die Erfindung beispielsweise beschrieben und dargestellt. Sie zeigt die Herstellung eines Balles mit Hilfe zweier aufeinandergesetzter Formhälften im Schleuderverfahren. The invention is described, for example, with reference to the drawing and shown. It shows the production of a ball with the help of two stacked balls Mold halves in the centrifugal process.

Es wird dabei so vorgegangen, wie es aus der Figur ersichtlich ist. Es wird in zwei Hohlformen 2 bzw. 2 a eine transparente Hohlkörperhälftel, bzw. The procedure is as can be seen from the figure. In two hollow molds 2 and 2 a, a transparent hollow body half or

1 a eingelegt. In die eine Hohlkörperhälfte wird dann eine gewisse Menge frischer, gelierfähiger Masse 11 eingebracht. Beide Formen 2, 2 a mit den eingelegten Hohlkörperhälften 1 bzw. la werden dann genau zueinander ausgerichtet, wie es die Figur zeigt und hierauf durch Verspannen an ihren Flanschringen 12, bzw. 12 a in ihrer gegenseitigen Lage gesichert. Anschließend werden die Formen in an sich bekannter Weise einem Schleudervorgang ausgesetzt und in einen Härteofen gebracht, in dem die Aushärtung der auf die Hohlkörperhälften 1, bzw. la aufgebrachten verstärkenden Schicht aus gelierfähiger Masse erfolgt.1 a inserted. In the one hollow body half is then a certain Amount of fresh, gellable mass 11 introduced. Both forms 2, 2 a with the inserted hollow body halves 1 or la are then precisely aligned with one another, as the figure shows and then by bracing on their flange rings 12 or 12 a secured in their mutual position. Then the shapes are in at exposed to a centrifugal process in a known manner and placed in a hardening furnace, in which the hardening of the reinforcement applied to the hollow body halves 1 or la Layer of gellable mass takes place.

Claims (1)

Patentanspruch: Verfahren zum Herstellen von Hohlkörpern, insbesondere Bällen, aus Polyvinylchlorid-(PCV) durch Zusammenfügen vorgefertigter Hohlkörperhalbschalen unter Anwendung eines Gießvorganges zur Bildung der Hohlkörperwandung, dadurch gekennzeichnet, daßdieHohlkörperhalbschalen in die Halbschalen einer Schleudergußform eingelegt werden, dann die gelierfähige PVC-Masse in eine der ausgelegten Formen eingebracht, die Schleudergußform geschlossen und die PVC-Masse durch Schleudern über die ganze Innenfläche verteilt und durch Wärmeeinwirkung verfestigt wird. Claim: Method for producing hollow bodies, in particular Balls made of polyvinyl chloride (PCV) by joining together prefabricated hollow body half-shells using a casting process to form the hollow body wall, characterized in that that the hollow body half-shells are placed in the half-shells of a centrifugal casting mold then put the gellable PVC mass into one of the designed molds, the centrifugal casting mold closed and the PVC mass by centrifuging over the whole Inside surface is distributed and solidified by the action of heat.
DEM55652A 1960-04-07 1960-04-07 Process for the production of hollow bodies Pending DE1195471B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM55652A DE1195471B (en) 1960-04-07 1960-04-07 Process for the production of hollow bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM55652A DE1195471B (en) 1960-04-07 1960-04-07 Process for the production of hollow bodies

Publications (1)

Publication Number Publication Date
DE1195471B true DE1195471B (en) 1965-06-24

Family

ID=7308363

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM55652A Pending DE1195471B (en) 1960-04-07 1960-04-07 Process for the production of hollow bodies

Country Status (1)

Country Link
DE (1) DE1195471B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981000960A1 (en) * 1979-10-03 1981-04-16 L Asker Ear protection plug and a method for the production of same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981000960A1 (en) * 1979-10-03 1981-04-16 L Asker Ear protection plug and a method for the production of same

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