GB946371A - Extrusion of thermoplastic materials and equipment therefor - Google Patents

Extrusion of thermoplastic materials and equipment therefor

Info

Publication number
GB946371A
GB946371A GB24681/62A GB2468162A GB946371A GB 946371 A GB946371 A GB 946371A GB 24681/62 A GB24681/62 A GB 24681/62A GB 2468162 A GB2468162 A GB 2468162A GB 946371 A GB946371 A GB 946371A
Authority
GB
United Kingdom
Prior art keywords
mandrel
die
thermoplastic material
skirt
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
GB24681/62A
Inventor
Bastiaan Groos
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to GB24681/62A priority Critical patent/GB946371A/en
Publication of GB946371A publication Critical patent/GB946371A/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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

946,371. Extruding thermoplastic tubing. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. June 27, 1962, No. 24681/62. Heading B5A. Thermoplastic material is extruded through a die head comprising a mandrel 8 rotating within a die 7 and formed with a skirt 8D cooperating with a skirt 10A on a bush 10 to define a sinuous path for the thermoplastic material. The extruder screw 3A to which the mandrel 8 is secured, feeds the thermoplastic material through a breaker plate 9, thence along the sinuous path and over the conical surface 8c of the mandrel to the extrusion orifice 13. A dome shaped collar 12 on the mandrel shank 8A prevents accumulation of plastic material at the end of the screw. The extruded tube may be expanded against a calibrating die surface by compressed air supplied through a bore 14 in the mandrel 8. Alternatively the die may be rotated instead of the mandrel. Specifications 862,941, 867,566 and 867,576 are referred to.
GB24681/62A 1962-06-27 1962-06-27 Extrusion of thermoplastic materials and equipment therefor Expired GB946371A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB24681/62A GB946371A (en) 1962-06-27 1962-06-27 Extrusion of thermoplastic materials and equipment therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24681/62A GB946371A (en) 1962-06-27 1962-06-27 Extrusion of thermoplastic materials and equipment therefor

Publications (1)

Publication Number Publication Date
GB946371A true GB946371A (en) 1964-01-15

Family

ID=10215601

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24681/62A Expired GB946371A (en) 1962-06-27 1962-06-27 Extrusion of thermoplastic materials and equipment therefor

Country Status (1)

Country Link
GB (1) GB946371A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4939235A (en) * 1985-09-26 1990-07-03 Foster-Miller, Inc. Biaxially oriented ordered polybenzothiazole film
US4963428A (en) * 1985-09-26 1990-10-16 Foster Miller, Inc. Biaxially oriented ordered polymer films
DE19509375A1 (en) * 1995-03-15 1996-09-19 Rollepaal B V Maschf De Extrusion head for plastic extruders
WO1997001428A1 (en) * 1995-06-26 1997-01-16 Conenor Oy Extrusion apparatus and method for orienting plastic material by using an extrusion apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4939235A (en) * 1985-09-26 1990-07-03 Foster-Miller, Inc. Biaxially oriented ordered polybenzothiazole film
US4963428A (en) * 1985-09-26 1990-10-16 Foster Miller, Inc. Biaxially oriented ordered polymer films
DE19509375A1 (en) * 1995-03-15 1996-09-19 Rollepaal B V Maschf De Extrusion head for plastic extruders
WO1997001428A1 (en) * 1995-06-26 1997-01-16 Conenor Oy Extrusion apparatus and method for orienting plastic material by using an extrusion apparatus
AU706505B2 (en) * 1995-06-26 1999-06-17 Maillefer S.A. Extrusion apparatus and method for orienting plastic material by using an extrusion apparatus
US6197239B1 (en) 1995-06-26 2001-03-06 Nextrom Holding S.A. Extrusion apparatus and method for orienting plastic material by using an extrusion apparatus

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