GB1438322A - Process and apparatus for manufacturing large bore pipe from thermoplastic synthetic material - Google Patents

Process and apparatus for manufacturing large bore pipe from thermoplastic synthetic material

Info

Publication number
GB1438322A
GB1438322A GB2955273A GB2955273A GB1438322A GB 1438322 A GB1438322 A GB 1438322A GB 2955273 A GB2955273 A GB 2955273A GB 2955273 A GB2955273 A GB 2955273A GB 1438322 A GB1438322 A GB 1438322A
Authority
GB
United Kingdom
Prior art keywords
hollow element
windings
cooling liquid
rollers
pipe
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
GB2955273A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1438322A publication Critical patent/GB1438322A/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
    • 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

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.
GB2955273A 1972-06-21 1973-06-21 Process and apparatus for manufacturing large bore pipe from thermoplastic synthetic material Expired GB1438322A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1438322A true GB1438322A (en) 1976-06-03

Family

ID=10927265

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2955273A Expired GB1438322A (en) 1972-06-21 1973-06-21 Process and apparatus for manufacturing large bore pipe from thermoplastic synthetic material
GB2955173A Expired GB1438321A (en) 1972-06-21 1973-06-21 Large bore pipe of thermoplastic synthetic material

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB2955173A Expired GB1438321A (en) 1972-06-21 1973-06-21 Large bore pipe of thermoplastic synthetic material

Country Status (3)

Country Link
BE (1) BE800939A (en)
GB (2) GB1438322A (en)
IE (1) IE37763B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5019309A (en) * 1989-01-24 1991-05-28 Technoform Caprano & Brunnhofer Kg Method of and apparatus for producing a pipe of thermoplastic synthetic resin
US8287684B2 (en) 2004-05-27 2012-10-16 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
CN112571773A (en) * 2020-11-23 2021-03-30 镇江瑞来电气有限公司 Heat tracing sampling tube cooling and winding device and using method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5019309A (en) * 1989-01-24 1991-05-28 Technoform Caprano & Brunnhofer Kg Method of and apparatus for producing a pipe of thermoplastic synthetic resin
US8287684B2 (en) 2004-05-27 2012-10-16 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
EP3216580A1 (en) * 2016-03-08 2017-09-13 Merlett Tecnoplastic S.p.A. Method for making a light plastic material tube structure, for building, industrial and agricultural applications, and light plastic material tube structure thus made
CN112571773A (en) * 2020-11-23 2021-03-30 镇江瑞来电气有限公司 Heat tracing sampling tube cooling and winding device and using method thereof

Also Published As

Publication number Publication date
IE37763B1 (en) 1977-10-12
IE37763L (en) 1973-12-21
BE800939A (en) 1973-10-01
GB1438321A (en) 1976-06-03

Similar Documents

Publication Publication Date Title
IL42376A (en) Large bore pipe made from thermoplastic synthetic material particularly for use underground,and process and apparatus for manufacturing such a pipe
US3709647A (en) Apparatus for forming an embossed thermoplastic sheet
US2502638A (en) Method of extruding plastics in tubular form and wrapping the tubing
US3692889A (en) Method and apparatus for forming corrugated plastic tubing
JPH1095051A (en) Manufacture of thermally insulated conduit
ES445205A1 (en) Material and apparatus for extruding a crosslinked polyolefin product
ES418968A1 (en) Process and apparatus for the extrusion of coated skein-shaped profiles, preferably of thermoplastic synthetic resins
US4113546A (en) Apparatus for producing tubes by helically winding sheets
US3949042A (en) Method and apparatus for making laminar plastic sheet material
GB1184474A (en) Improvements in or relating to Extruders
IL43327A (en) Apparatus for producing perforated seamless tubular films
US4519863A (en) Method and device for jacketing a steel pipe with several plastic materials
GB1438322A (en) Process and apparatus for manufacturing large bore pipe from thermoplastic synthetic material
GB1007779A (en) Apparatus and method for forming tubing from a continuous web
US3576935A (en) Apparatus for and method of gauge distribution in plastic tubing
GB1113300A (en) Improvements in or relating to the formation of tubular films of synthetic resin
FR2174812A1 (en) Crimping extruded polyethylene terephthalate fibres - with chain of heater and cooling units
US2537311A (en) Method of and apparatus for forming plastic
GB1525439A (en) Nozzle
GB1056970A (en) Process and apparatus for producing heat shrinkable tubing
ES384742A2 (en) Process and apparatus for the extrusion of expansible plastics material
US3249670A (en) Plastic tube extrusion process
US4214934A (en) Process for coating woven tubing of fibrillated tape with synthetic thermoplastics
US4488860A (en) Method and apparatus for producing multi-layer expanded films
GB1175005A (en) Method and apparatus for producing plastics tubing

Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed