GB1148400A - Method and apparatus for producing pipes of plastics material - Google Patents

Method and apparatus for producing pipes of plastics material

Info

Publication number
GB1148400A
GB1148400A GB328/67A GB32867A GB1148400A GB 1148400 A GB1148400 A GB 1148400A GB 328/67 A GB328/67 A GB 328/67A GB 32867 A GB32867 A GB 32867A GB 1148400 A GB1148400 A GB 1148400A
Authority
GB
United Kingdom
Prior art keywords
core
socket
jacket
extrusion
rod
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
GB328/67A
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.)
P M E Holding A G
Original Assignee
P M E Holding A G
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 P M E Holding A G filed Critical P M E Holding A G
Publication of GB1148400A publication Critical patent/GB1148400A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/127—Rigid pipes of plastics with or without reinforcement the walls consisting of a single layer
    • 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
    • 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
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/91—Heating, e.g. for cross linking
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • 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
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B29C57/02—Belling or enlarging, e.g. combined with forming a groove
    • B29C57/04—Belling or enlarging, e.g. combined with forming a groove using mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/003—Tubular articles having irregular or rough surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1,148,400. Extruding socketed pipes. P.M.E.- HOLDING A.G. 3 Jan., 1967 [2 Feb., 1966], No. 328/67. Heading B5A. A socketed plastics pipe is made by extruding material through annular passageway 3 of diehead 1, between a core 7 and jacket 21 which define the socket and through a passageway 25 where the material is sized to the pipe dimensions by a core 9 and further jacket 23. Material emerging from passageway 25 engages ribs 45 on a rod 41, and to form an extended pipe length, rod 41 is moved axially away from die head 1 at the speed of extrusion by rolls 43, see also Fig. 2 (not reproduced). When a predetermined length has been extruded, core 7 is released from die-head 1 by rotating rod 29 via system 31-33, 39 and 40 whereupon screwthreaded end 30 disengages from a screwthreaded socket 15 within the core. Furthermore jackets 21 and 23 which are sectionalized, are moved radially to release the socket and adjacent pipe length, see Fig. 3 (not reproduced). Finally the extrudate is severed adjacent die head 1 by a rotatable knife (51), Fig. 3 (not shown), and at its downstream end by knife (53), Fig. 4 (not shown). Cores 7 and 9 are removed from the socket by contracting a bead-forming member 11. This member is composed of segments 11a, 11b, Fig. 5, which are moved radially inwardly by axial movement of wedges 14, see also Figs. 6a, 6b and 7 (not reproduced). Components 7, 9, 21, 23, 41, 43 and 49 may be duplicated, one set being moved transversely to die head 1 after extrusion and the other set being attached thereto to allow virtually non-stop extrusion. Jackets 21, 23 contain circulating heat-transfer liquid, with generally jacket 23 being at lower temperature than jacket 21, and the extrudate is cooled by sprays from pipes 49. Core 7 may be heated electrically or by fluid flow. Rod 41 may be dispensed with, advancement of the tube being solely due to the extrusion pressure.
GB328/67A 1966-02-02 1967-01-03 Method and apparatus for producing pipes of plastics material Expired GB1148400A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH144466A CH454439A (en) 1966-02-02 1966-02-02 Method for producing a plastic pipe and device for carrying out the method

Publications (1)

Publication Number Publication Date
GB1148400A true GB1148400A (en) 1969-04-10

Family

ID=4210599

Family Applications (1)

Application Number Title Priority Date Filing Date
GB328/67A Expired GB1148400A (en) 1966-02-02 1967-01-03 Method and apparatus for producing pipes of plastics material

Country Status (7)

Country Link
AT (1) AT301164B (en)
CH (1) CH454439A (en)
DE (1) DE1629590A1 (en)
FI (1) FI45632C (en)
GB (1) GB1148400A (en)
NL (1) NL6701410A (en)
SE (1) SE300701B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2821205A1 (en) * 2013-07-05 2015-01-07 isoplus Fernwärmetechnik GmbH Method for manufacture of pipe elements with an extended diameter from a plastic pipe and assembly for carrying out the method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115383866B (en) * 2022-09-19 2023-07-21 中国路桥工程有限责任公司 Preparation equipment of road self-protection concrete

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2821205A1 (en) * 2013-07-05 2015-01-07 isoplus Fernwärmetechnik GmbH Method for manufacture of pipe elements with an extended diameter from a plastic pipe and assembly for carrying out the method

Also Published As

Publication number Publication date
NL6701410A (en) 1967-08-03
AT301164B (en) 1972-08-25
SE300701B (en) 1968-05-06
FI45632C (en) 1972-08-10
CH454439A (en) 1968-04-15
FI45632B (en) 1972-05-02
DE1629590A1 (en) 1971-02-04

Similar Documents

Publication Publication Date Title
US2423260A (en) Extrusion of tubing
US3709647A (en) Apparatus for forming an embossed thermoplastic sheet
US3264383A (en) Extrusion methods
GB997970A (en) Apparatus for simultaneously extruding plastic layers on a core
US3182108A (en) Extrusion of thermoplastic tubing
CA1320323E (en) Extrusion die for externally ribbed plastic tubing
EP0788869A1 (en) Method of manufacturing thickwalled pipes of polyethylene
US3320637A (en) Apparatus for manufacturing thermoplastic pipes
GB1148400A (en) Method and apparatus for producing pipes of plastics material
DE1629603B2 (en) Extrusion press for the production of hollow strands from thermoplastic material
US2135194A (en) Extrusion of tubular shapes of aluminum and alloys thereof
GB1188907A (en) Extrusion Apparatus.
KR920006237A (en) Method for manufacturing silica glass optical waveguide preform
JPS5644628A (en) Continuous manufacturing method and apparatus for profile tube
US4069001A (en) Apparatus for forming a thick-walled tubular product
DE1153513B (en) Process and device for the continuous production of thin-walled pipes of high strength from thermoplastics
CA2111871A1 (en) Extrusion Die with Interchangeable Extrusion Nozzles
GB929200A (en) Improvements in or relating to extrusion dies for the production of tubular films
GB1076985A (en) Apparatus for producing tubes or pipes from plastics materials
EP0209698B1 (en) Safety procedure applicable when cooling temperature and/or pressure sensitive substancesand apparatus for performing the process
US2882555A (en) Plastics extruding apparatus
DE1504665A1 (en) Process for the production of film tubes made of thermoplastic polymer and device for carrying out the same
DK0444224T3 (en) Controller for an extruder nozzle head
GB891336A (en) Improvements in or relating to methods and apparatus for the production of polytetrafluoroethylene articles by dry powder ram extrusion
DE2533324A1 (en) Thermosetting tubes continuously and rapidly extruded - between two coaxial cylinders with upstream cooling and downstream heating

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee