IE37763L - Pipe formed from helically wound hollow element - Google Patents

Pipe formed from helically wound hollow element

Info

Publication number
IE37763L
IE37763L IE730809A IE80973A IE37763L IE 37763 L IE37763 L IE 37763L IE 730809 A IE730809 A IE 730809A IE 80973 A IE80973 A IE 80973A IE 37763 L IE37763 L IE 37763L
Authority
IE
Ireland
Prior art keywords
hollow element
windings
cooling liquid
rollers
pipe
Prior art date
Application number
IE730809A
Other versions
IE37763B1 (en
Original Assignee
Petzetakis Aristovoulos George
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 Petzetakis Aristovoulos George filed Critical Petzetakis Aristovoulos George
Publication of IE37763L publication Critical patent/IE37763L/en
Publication of IE37763B1 publication Critical patent/IE37763B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • 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
    • B29C48/03—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
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • 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
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • 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
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • 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
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/24—Hoses, i.e. flexible pipes wound from strips or bands
    • 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
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
    • 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
    • B29C48/131—Curved 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
    • B29C48/15—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
    • B29C48/154—Coating solid articles, i.e. non-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
    • 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
    • B29C48/28—Storing of extruded material, e.g. by winding up or stacking
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

1438322 Making thermoplastics pipes A G PETZETAKIS 21 June 1973 [21 June 1972] 29552/73 Heading F2P A method of making a large bore pipe from thermoplastic synthetic material, e.g. p.v.c., polyamide or polyolefins such as polyethylene or polypropylene, includes the steps of extruding a hollow element 3 of thermoplastic material, the element 3 having a rectangular outside cross-section and a round inside cross-section, coiling the hollow element 3 at a winding station 1 into windings so as to make the body of a pipe 5 which is rotating about its own axis, introducing a cooling liquid into the hollow element 3 and leading the cooling liquid through at least the first winding, pressing together to effect welding (with the aid of the residual extrusion heat) at side walls of the hollow element 3 and discharging the pipe body 5 thus formed in the axial direction (at the discharge speed V 1 ). As described the hollow element 3 is extruded from an extrusion head 2a and is wound on to a set of winding rollers 6 which are driven synchronously by gearing (not shown). The rollers 6 have a smooth surface at their front ends and a surface with a braking action (e.g. a coating of rubber) at their discharge ends. The speed of rotation of the rollers 6 is arranged so that the pipe is discharged at a speed V 1 . The hollow element 3 is guided on to the rollers 6 by a pressing device consisting of a series of rollers 7 or a pressing finger (not shown) which is arranged to discharge the windings at a speed V 2 which is greater than the discharge speed V 1 . This arrangement presses the windings 13 together and compresses them to ensure a good weld between the windings The residual heat of the extrusion process produces a temperature at the outer surface of the hollow element 3 which is sufficient to ensure welding when the windings are pressed together although additional heat may be supplied by a heater 15. The inner surface fo the hollow element 3 is cooled by a cooling liquid, e.g. water, which is introduced into one or two of the windings by a supply pipe 17 which passes through the extrusion head 2a and which has openings 19 for the cooling liquid distributed over its length. The cooling liquid flows in the direction of the arrows 20, 21. The cooling liquid solidifies the inner surfaces of the hollow element so that it can withstand the axial pressure produced by the pressing device. [GB1438322A]
IE809/73A 1972-06-21 1973-05-21 Large bore pipe made from thermoplastic synthetic materialparticularly for use underground and process and apparatus for manufacturing such a pipe IE37763B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR4514872 1972-06-21

Publications (2)

Publication Number Publication Date
IE37763L true IE37763L (en) 1973-12-21
IE37763B1 IE37763B1 (en) 1977-10-12

Family

ID=10927265

Family Applications (1)

Application Number Title Priority Date Filing Date
IE809/73A IE37763B1 (en) 1972-06-21 1973-05-21 Large bore pipe made from thermoplastic synthetic materialparticularly for use underground and process and apparatus for manufacturing such a pipe

Country Status (3)

Country Link
BE (1) BE800939A (en)
GB (2) GB1438321A (en)
IE (1) IE37763B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3901928C1 (en) * 1989-01-24 1990-03-08 Technoform Caprano + Brunnhofer Kg, 3501 Fuldabrueck, De
EP1758727A4 (en) 2004-05-27 2011-10-19 Nomaco Inc Foam welding and profile manufacturing system
ITUA20161459A1 (en) * 2016-03-08 2017-09-08 Merlett Tecnoplastic PROCEDURE FOR MANUFACTURING A STRUCTURE OF LIGHT PLASTIC TUBES, IN PARTICULAR FOR CONSTRUCTION, INDUSTRIAL AND AGRICULTURAL ENVIRONMENTS, AND STRUCTURE OF LIGHT PLASTIC TUBE MANUFACTURED BY PROCEDURE
CN112571773B (en) * 2020-11-23 2022-09-16 镇江瑞来电气有限公司 Heat tracing sampling tube cooling and winding device and using method thereof
CN116105004B (en) * 2022-11-16 2024-01-30 南京晨光东螺波纹管有限公司 Method for checking cooling mode of expansion joint manufacturing plant

Also Published As

Publication number Publication date
GB1438322A (en) 1976-06-03
IE37763B1 (en) 1977-10-12
GB1438321A (en) 1976-06-03
BE800939A (en) 1973-10-01

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