ES329628A1 - Extrusion equipment for the production of plastic material tubes. (Machine-translation by Google Translate, not legally binding) - Google Patents

Extrusion equipment for the production of plastic material tubes. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES329628A1
ES329628A1 ES0329628A ES329628A ES329628A1 ES 329628 A1 ES329628 A1 ES 329628A1 ES 0329628 A ES0329628 A ES 0329628A ES 329628 A ES329628 A ES 329628A ES 329628 A1 ES329628 A1 ES 329628A1
Authority
ES
Spain
Prior art keywords
support
tubular
tube
production
extrusion
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
ES0329628A
Other languages
Spanish (es)
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.)
Edison SpA
Original Assignee
Edison SpA
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 Edison SpA filed Critical Edison SpA
Publication of ES329628A1 publication Critical patent/ES329628A1/en
Expired 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles
    • B29C48/152—Coating hollow articles the inner surfaces thereof
    • B29C48/153—Coating both inner and outer surfaces
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

Abstract

Extrusion equipment for the production of plastic tubes, and more particularly for the production of flexible, internally reinforced plastic tubes, of the type comprising a tube extruder for the extrusion of a blown inner tubular, a device for winding band to reinforce said tubular and a second tube extruder for coating said tubular, which has been wound band, with some plastic material, characterized in that a support is provided, inside the tubular being extracted, and that is supported in cantilever by the extrusion screw of the first tube extruder, some axial and radial conduits located in said support for the passage of the appropriate compressed air to maintain an air cushion between the support and the inner wall of the tubular, a second free support radially inside the extruder coating the tube and kept axially centered by the same tube that has been wound band, finally providing flexible articulation means between said first rigid support and said second mobile support to prevent axial displacements of the latter during extrusion. (Machine-translation by Google Translate, not legally binding)
ES0329628A 1965-07-13 1966-07-13 Extrusion equipment for the production of plastic material tubes. (Machine-translation by Google Translate, not legally binding) Expired ES329628A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT682165 1965-07-13

Publications (1)

Publication Number Publication Date
ES329628A1 true ES329628A1 (en) 1967-05-16

Family

ID=11122096

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0329628A Expired ES329628A1 (en) 1965-07-13 1966-07-13 Extrusion equipment for the production of plastic material tubes. (Machine-translation by Google Translate, not legally binding)

Country Status (2)

Country Link
BE (1) BE684102A (en)
ES (1) ES329628A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2197710A1 (en) * 1972-08-29 1974-03-29 Uk Nauchno Issled Thermoplastic tube cladding - by circular extrusion round tubing fed from chamber with tear-drop cross-section
NL8602469A (en) * 1986-09-30 1988-04-18 Wavin Bv METHOD AND APPARATUS AND EXTRUSION HEAD FOR MANUFACTURING WELDING TUBES AND WELDING FITTINGS FROM THERMOPLASTIC MATERIAL USING EXTRUDER USING A FIRST TUBE PART.

Also Published As

Publication number Publication date
BE684102A (en) 1966-12-16

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