GB1090120A - Composite rigid plastic pressure tubing - Google Patents

Composite rigid plastic pressure tubing

Info

Publication number
GB1090120A
GB1090120A GB17268/65A GB1726865A GB1090120A GB 1090120 A GB1090120 A GB 1090120A GB 17268/65 A GB17268/65 A GB 17268/65A GB 1726865 A GB1726865 A GB 1726865A GB 1090120 A GB1090120 A GB 1090120A
Authority
GB
United Kingdom
Prior art keywords
tubing
composite
bungs
bung
extruding
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
GB17268/65A
Inventor
Gerald Hopkin Burke
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.)
British Geon Ltd
Original Assignee
British Geon Ltd
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 British Geon Ltd filed Critical British Geon Ltd
Priority to GB17268/65A priority Critical patent/GB1090120A/en
Publication of GB1090120A publication Critical patent/GB1090120A/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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
    • B29C48/0015—Extrusion moulding in several steps, i.e. components merging outside the die producing hollow articles having components brought in contact outside the extrusion die
    • B29C48/0016—Extrusion moulding in several steps, i.e. components merging outside the die producing hollow articles having components brought in contact outside the extrusion die using a plurality of extrusion dies
    • 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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

1,090,120. Extruding composite tubing. BRITISH GEON Ltd. March 18, 1966 [April 23, 1965], No. 17268/65. Heading B5A. [Also in Division F2] Composite tubing comprising an inner layer of normal impact vinyl chloride polymer and an outer layer of high impact polymer, i.e. one containing a rubbery modifier, is made by extruding the inner layer 14 from a die head 12 and passing it through a cross-head die 17, a pressure to prevent collapse being maintained within the tubing by delivery of compressed air from hollow mandrel 19 and by providing the free end of the tubing with a bung or by attaching a floating bung to mandrel 19. One or more cooled sizing dies 18 are provided. In a second embodiment, Fig. 1 (not shown), preformed tubing (8), comprising sections joined together by bungs (9), is fed to a cross-head die (2), and the composite tubing is cut transversely of bungs (9) by a cutting device (11). Each section contains material, e.g. water, chlorinated fluorinated methane, solid or liquid carbon dioxide to cool and/or maintain internal pressure within tubing (8) during the coating process. The extrusion passageways of crosshead dies (2) and 17 are lined with P.T.F.E. sleeves (4) and 16 respectively. Specific high impact polymers mentioned are modified polyvinyl chloride and polystyrene and acrylonitrile - butadiene - styrene. Various suitable modifiers are mentioned and a specific example is given.
GB17268/65A 1965-04-23 1965-04-23 Composite rigid plastic pressure tubing Expired GB1090120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB17268/65A GB1090120A (en) 1965-04-23 1965-04-23 Composite rigid plastic pressure tubing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17268/65A GB1090120A (en) 1965-04-23 1965-04-23 Composite rigid plastic pressure tubing

Publications (1)

Publication Number Publication Date
GB1090120A true GB1090120A (en) 1967-11-08

Family

ID=10092211

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17268/65A Expired GB1090120A (en) 1965-04-23 1965-04-23 Composite rigid plastic pressure tubing

Country Status (1)

Country Link
GB (1) GB1090120A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202484A (en) * 1987-03-20 1988-09-28 Keith Richard Patterson Extruding sheaths around intumescent cores

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202484A (en) * 1987-03-20 1988-09-28 Keith Richard Patterson Extruding sheaths around intumescent cores
GB2202484B (en) * 1987-03-20 1990-08-15 Keith Richard Patterson Improvements relating to tubular extrusions

Similar Documents

Publication Publication Date Title
US4182603A (en) Multilayer tubular extrusion die
GB1139394A (en) Improvements relating to corrugated plastics pipe
US4054403A (en) Extruder with dual flighted extrusion screw
KR890700460A (en) Plastic pipe extrusion method and device
NZ219682A (en) Extruding smooth-bore pipes with external ribs
KR880005390A (en) Double wall tube assembly and its continuous manufacturing method
ES8304478A1 (en) Head for extruding a tubular parison having at least one layer of material.
GB1375409A (en)
GB1430771A (en) Process and apparatus for forming a composite pipe of synthetic resin containing separating plates therein
US3189941A (en) Apparatus for continuous extrusion of composite bodies of plastic material
GB1412048A (en) Method and apparatus for producing a tubular film of thermoplastic material
GB1049105A (en) Apparatus for the continuous production of hollow bodies
GB954069A (en) Improvements in methods of and apparatus for, the continuous production of composite plastic material
GB1456198A (en) Reinforced containers
GB1090120A (en) Composite rigid plastic pressure tubing
GB1214273A (en) Extrusion head.
ES384742A2 (en) Process and apparatus for the extrusion of expansible plastics material
GB1237097A (en) Irrigation conduit and method for producing such
US4732718A (en) Process for extrusion of expandable plastic materials
GB994567A (en) Double-wall tube and die for extruding the same
FR2358972A1 (en) Extruded thermoplastic profiles - comprising thin, hard PVC sheath simultaneously extruded with a foamed PVC core
US3304580A (en) Apparatus producing pipe
IE37791L (en) Gorrugated plastics pipe with holes
GB1353826A (en) Extruded plastics
GB946371A (en) Extrusion of thermoplastic materials and equipment therefor