DE2351250A1 - Manhole in GRP container - produced by filament winding with insert and cutting off - Google Patents

Manhole in GRP container - produced by filament winding with insert and cutting off

Info

Publication number
DE2351250A1
DE2351250A1 DE19732351250 DE2351250A DE2351250A1 DE 2351250 A1 DE2351250 A1 DE 2351250A1 DE 19732351250 DE19732351250 DE 19732351250 DE 2351250 A DE2351250 A DE 2351250A DE 2351250 A1 DE2351250 A1 DE 2351250A1
Authority
DE
Germany
Prior art keywords
manhole
collar
model part
winding
container
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
DE19732351250
Other languages
German (de)
Inventor
Guenther Loske
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.)
Burger Eisenwerke AG
Original Assignee
Burger Eisenwerke AG
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 Burger Eisenwerke AG filed Critical Burger Eisenwerke AG
Priority to DE19732351250 priority Critical patent/DE2351250A1/en
Publication of DE2351250A1 publication Critical patent/DE2351250A1/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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
    • B29C53/602—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels for tubular articles having closed or nearly closed ends, e.g. vessels, tanks, containers

Abstract

A manhole and peripheral collar for sealing it to a cover are produced in the wall of a filament-wound glass container; (a) a component corresp. to the inner shape of the collar is laid on the winding mandrel, (b) this component is covered over by the wound material, (c) it is removed after withdrawing the cured cylinder from the mandrel and (d) the manhole is cut from the final flat surface, leaving the collar in position. The structure eliminates the potential weakness of cemented-on rings and also leaks from porous joints.

Description

BURGER EISENWERKE AG
GP/Be/No - PG 2922 -BURGER EISENWERKE AG
GP / Be / No - PG 2922 -

Verfahren zum Herstellen einer Mannloch-Öffnung in Behältern aus glasfaserverstärktem KunststoffMethod of making a manhole opening in containers made of glass fiber reinforced plastic

Die Erfindung betrifft ein Verfahren zum Herstellen einer Mannlochöffnung mit einem umlaufenden Mannlochkragen von auf einem Wickeldorn hergestellten Behältern aus glasfaserverstärktem Kunststoff.The invention relates to a method for producing a manhole opening with a circumferential manhole collar of Glass fiber reinforced containers made on a winding mandrel Plastic.

Die bisher übliche Ausführung des Mannloches bei derartigen Behältern besteht im wesentlichen aus einem ovalen Mannlochring mit z-förmigem Querschnitt. Dieser Mannlochring wird im Naßpreßverfahren vorgefertigt und in eine, in die Behälterwandung eingeschnittne Öffnung durch Verkleben eingesetzt. Der Mannlochring stellt die Verbindung von der gekrümmten Behälterwand zu dem mit einer ebenen Dichtfläche versehenen Mannlochdeckel dar.The usual execution of the manhole in such Container consists essentially of an oval manhole ring with a Z-shaped cross-section. This manhole ring will prefabricated in the wet pressing process and inserted into an opening cut into the container wall by gluing. The manhole ring provides the connection from the curved container wall to the one with a flat sealing surface provided manhole cover.

Ein derartig hergestellter Mannlochring kann Undichtigkeiten durch Porosität aufweisen. Ferner kann die Verklebung des Mannlochringes mit der Zylinderwandung durch Stoß während des Transportes des Behälters beschädigt werden. Wegen der notwendigen zahlreichen Arbeitsgänge beim Herstellen und Einkleben des Mannlochringes sind die Herstellkosten sehr hoch. Zur Vermeidung dieser Nachteile geht die Erfindung davon aus, einen Mannlochkragen bei der Herstellung der Zylinderwandung direkt mit anzuformen. Hierzu wird erfindungsgemäß vorgeschlagen, ein der Innenkontur des gewünschten Mannlochkragens entsprechendes Modellteil aufA manhole ring produced in this way can have leaks due to porosity. Furthermore, the gluing of the manhole ring with the cylinder wall by impact damaged during transport of the container. Because of the numerous manufacturing operations required and gluing in the manhole ring, the manufacturing costs are very high. To avoid these disadvantages, the Invention assumes a manhole collar in the manufacture to be molded directly onto the cylinder wall. For this purpose, it is proposed according to the invention, one of the inner contour of the desired Manhole collar corresponding model part

509818/0966509818/0966

den Wickeldorn aufzulegen, dieses Modellteil beim Wickelvorgang des Zylinders mit zu umwickeln, nach dem Abziehen des ausgehärteten Zylinders das Modellteil zu entfernen und anschließend die Mannlochöffnung bis auf den stehenbleibenden Mannlochkragen auszuschneiden. Das Modellteil hat zweckmäßig sanft ansteigende Planken, damit sich die auf den Wickeldorn auflaufenden Glasfaserstränge am Modellteil im Bereich des Übergangs dicht anlegen. Zusätzlich sollten Glasseidenmatten zwischen den Wickellagen im Bereich des Modellteiles beigelegt werden, um auf diese Weise die gewünschte Festigkeit zu erhalten.to put on the winding mandrel, to wrap around this model part during the winding process of the cylinder, after pulling it off of the hardened cylinder to remove the model part and then the manhole opening except for the remaining one Cut out manhole collar. The model part has expediently gently rising planks, so that the glass fiber strands running onto the winding mandrel lie tightly against the model part in the area of the transition. In addition, glass silk mats should be added between the winding layers in the area of the model part, in order to obtain the desired strength in this way.

Anhand der Zeichnung wird die Erfindung an einem Ausführungsbeispiel erläutert. Es zeigenThe invention is based on an exemplary embodiment with the aid of the drawing explained. Show it

Fig. 1 einen Ausschnitt des Wickeldorns mit aufgesetztem Modellteil und übergewickelten, mit Kunstharz getränkten Glasfasersträngen im radialen Schnitt,Fig. 1 shows a section of the winding mandrel with attached Model part and wrapped glass fiber strands impregnated with synthetic resin in a radial section,

Fig. 2 die vollständige Mannlocheinrichtung in axialem Schnitt.Fig. 2 shows the complete manhole device in axial section.

Im Bereich der vorgesehenen Mannlochöffnung wird auf den Wickeldorn 1 ein, der Innenkontur des Mannlochkragens 2 entsprechendes Modellteil j5 gelegt. Das Modellteil hat Flanken 4,5 die in Wickelrichtung tangential zum Wickeldorn 1 und in Achsrichtung sanft ansteigend ausgebildet sind, damit sich beim Wickelvorgang die mit Kunstharz getränkten Glasfaserstränge 6 im Bereich des Überganges zum Mannlochkragen 2 gutIn the area of the intended manhole opening, will open placed the winding mandrel 1, the inner contour of the manhole collar 2 corresponding model part j5. That The model part has flanks 4, 5 which are tangential to the winding mandrel 1 in the winding direction and gently in the axial direction are designed to rise so that the synthetic resin-impregnated glass fiber strands 6 in the area of the transition to the manhole collar 2 good

509818/0966509818/0966

anlegen können. Sobald das Wickellaminat ausgehärtet ist, kann der Behälterzylinder vom Wickeldorn auf übliche Weise abgezogen und anschließend das Modellteil 5 nach innen entfernt werden. Nun wird die meist ovale Mannlochöffnung derart ausgeschnitten, daß der Mannlochkragen 2 verbleibt und der Mannlochdeckel 7 kann eingesetzt werden. Die übliche Form des Mannlochdeckels 7 kann beibehalten werden, wenn man ihn um 18O ° gewendet einsetzt, weil dann die nach außen ragende Wölbung 8 die erforderliche Führung in der Mannlochöffnung ergibt.can create. As soon as the winding laminate has hardened, the container cylinder can be removed from the winding mandrel in the usual way Way peeled off and then the model part 5 are removed inward. Now the mostly oval Manhole opening cut out so that the manhole collar 2 remains and the manhole cover 7 can can be used. The usual shape of the manhole cover 7 can be retained if it is turned through 180 ° begins, because then the outwardly protruding vault 8 provides the necessary guidance in the manhole opening results.

5098 18/09665098 18/0966

Claims (1)

BURQER EISENWERKE AG
GP/Be/No - PG 2922 -BURQER EISENWERKE AG
GP / Be / No - PG 2922 - PatentansprücheClaims 1. )yVerf ahren zum Herstellen einer Mannlochöffnung mit -S einem umlaufenden, eine ebene Dichtfläche für den Mannlochdeckel bildenden Mannlochkragen in der Zylinderwandung von auf einem Wickeldorn hergestellten Behälter aus glasfaserverstärktem Kunststoff, dadurch gekennzeich net, daß1.) yVerf ahren to produce a manhole opening with - S a circumferential, a flat sealing surface for the manhole cover forming manhole collar in the cylinder wall of a container made of glass fiber reinforced plastic on a winding mandrel, characterized in that a) ein der Innenkontur des Mannlochkragens (2) entsprechendes Modellteil (j5) auf den Wickeldorn (l) aufgelegt,a) a model part (j5) corresponding to the inner contour of the manhole collar (2) on the winding mandrel (l) hung up, b) das Modellteil (j5) beim Wickelvorgang vom gesamten Wickellaminat (6) mit umwickelt,b) the model part (j5) during the winding process of the entire Wrap laminate (6) with wrapped, c) nach dem Abziehen des ausgehärteten Zylinders vom Wickeldorn (l) das Modellteil (j5) entfernt und nunmehrc) after the cured cylinder has been pulled off the winding mandrel (l), the model part (j5) is removed and now d) die Mannlochöffnung aus der so gebildeten ebenen Fläche derart ausgeschnitten wird, daß ein umlaufender Mannlochkragen (2) verbleibt.d) the manhole opening is cut out of the flat surface thus formed in such a way that a circumferential Manhole collar (2) remains. 2.) Verfahren zum Herstellen einer Mannloqhöffnung nach Anspruch 1* dadurch gekennzeichnet, daß beim Wickeln der Behälterwandung im Bereich des Mannlochkragens (2) zusätzlich Glasseidenmatten (6) zwischen den Wickellagen beigelegt werden.2.) Procedure for making a manhole opening according to Claim 1 * characterized in that when winding the container wall in the area of the manhole collar (2) additionally glass silk mats (6) between the Wrapping layers are included. 5.) Verfahren zum Herateilen einer Mannlochöffnung nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, daß der Mannlochkragen (2) mit flach verlaufenden Plan- - ken (4,5) als übergang zur Zylinderwandung ausgebildet wird.5.) Procedure for dividing a manhole opening according to claims 1 or 2, characterized in that the manhole collar (2) with flat running plan - ken (4,5) designed as a transition to the cylinder wall will. 509818/0966509818/0966
DE19732351250 1973-10-12 1973-10-12 Manhole in GRP container - produced by filament winding with insert and cutting off Pending DE2351250A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19732351250 DE2351250A1 (en) 1973-10-12 1973-10-12 Manhole in GRP container - produced by filament winding with insert and cutting off

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732351250 DE2351250A1 (en) 1973-10-12 1973-10-12 Manhole in GRP container - produced by filament winding with insert and cutting off

Publications (1)

Publication Number Publication Date
DE2351250A1 true DE2351250A1 (en) 1975-04-30

Family

ID=5895235

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732351250 Pending DE2351250A1 (en) 1973-10-12 1973-10-12 Manhole in GRP container - produced by filament winding with insert and cutting off

Country Status (1)

Country Link
DE (1) DE2351250A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5362345A (en) * 1992-01-28 1994-11-08 Inventio Ag Method of manufacturing integral railway coach bodies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5362345A (en) * 1992-01-28 1994-11-08 Inventio Ag Method of manufacturing integral railway coach bodies

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