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GB1430771A - Process and apparatus for forming a composite pipe of synthetic resin containing separating plates therein - Google Patents

Process and apparatus for forming a composite pipe of synthetic resin containing separating plates therein

Info

Publication number
GB1430771A
GB1430771A GB3910373A GB3910373A GB1430771A GB 1430771 A GB1430771 A GB 1430771A GB 3910373 A GB3910373 A GB 3910373A GB 3910373 A GB3910373 A GB 3910373A GB 1430771 A GB1430771 A GB 1430771A
Authority
GB
United Kingdom
Prior art keywords
wall
plates
pipe
extrusion
tube
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
GB3910373A
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.)
Maruhachi Kasei Kogyo KK
Original Assignee
Maruhachi Kasei Kogyo KK
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 Maruhachi Kasei Kogyo KK filed Critical Maruhachi Kasei Kogyo KK
Publication of GB1430771A publication Critical patent/GB1430771A/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
    • B29C48/15—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
    • 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
    • B29C48/15—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
    • B29C48/157—Coating linked inserts, e.g. chains
    • 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

Landscapes

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

Abstract

1430771 Extruding thermoplastics pipe MARUHACHI KASEI KOGYO KK 17 Aug 1973 [31 Aug 1972] 39103/73 Heading B5A An extruded pipe of thermoplastic synthetic resin has a shape simulating bamboo, and a buoyancy in water, obtained by thermoplastic resin plates located at spaced intervals within the tube and dividing its interior into airtight chambers. The plates are inserted during extrusion of a first tubular wall of the tube which is perforated to prevent collapse of the wall during cooling, the perforations being sealed by the extrusion, around the first tube wall, of a further tube wall 82 of the same or different resin, as shown in Fig. 2. The bamboo shape facilitates tying by string, and is enhanced by drawing of the tubular walls away from the extrusion dies and by a first tubular wall of greater thickness, e.g. 2 mm., than the further wall, e.g. of 1 mm. The first tubular wall 26 is extruded from the Fig. 3 apparatus, in which the outer die 27 extends downstream of the inner mandrel 28 over a region in which the plates x are inserted into the extruding wall 26, by displacement through a mandrel passage 29 by means of a reciprocated suction disc 36. The plates x are delivered into the path of the disc 36, by means of a reciprocated rod 33, and from a container 31 at which a heater 32 heats the edges of the plates, which are further heated in the passage 29. The fixing of the plates x within the tube may be enhanced by their size being larger than the inner diameter of the pipe, or by pinching of the pipe by roller pairs 41, 42. The perforating of the pipe wall is effected immediately downstream of the die outlet, by a needle reciprocated by an electromagnet, optionally provided with a spring. The extrusion passage 23, 24, 25 is of progressively decreasing thickness, and material is delivered thereto from an extruder 1, by a pair of passages 22 each extending in opposite directions and being of progressively increasing width. The first tubular wall 26 is cooled in being drawn through the air by pull-off rolls, and delivered to the Fig. 2 extruder die 8 for extrusion of the further wall 82 which is drawn on to the first wall by a vacuum applied at 83, the first wall being sealed at its entry to the die 8 by a seal, or spaced seals 84. The pipe is drawn from the Fig. 2 extruder, and through cooling means, by further rolls.
GB3910373A 1972-08-31 1973-08-17 Process and apparatus for forming a composite pipe of synthetic resin containing separating plates therein Expired GB1430771A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47087673A JPS5146530B2 (en) 1972-08-31 1972-08-31

Publications (1)

Publication Number Publication Date
GB1430771A true GB1430771A (en) 1976-04-07

Family

ID=13921449

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3910373A Expired GB1430771A (en) 1972-08-31 1973-08-17 Process and apparatus for forming a composite pipe of synthetic resin containing separating plates therein

Country Status (4)

Country Link
US (1) US3895085A (en)
JP (1) JPS5146530B2 (en)
FR (1) FR2197713B1 (en)
GB (1) GB1430771A (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

Families Citing this family (41)

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Publication number Priority date Publication date Assignee Title
US4113890A (en) * 1975-12-11 1978-09-12 Marlen Research Corporation Method of cooking a flowable food product in a continuous flow scraped surface heat exchanger
DE2965436D1 (en) * 1978-08-02 1983-07-07 Bicc Plc Manufacture of extruded products
US4345363A (en) * 1978-09-08 1982-08-24 Kabel Und Metallwerke Gutehoffnungshutte Ag Method of continuously making flexible, heat insulated metal tubing
PL128642B1 (en) * 1980-03-07 1984-02-29 Mannesmann Ag Apparatus for lagging steel pipes
DE3047429C2 (en) * 1980-12-12 1984-09-13 Mannesmann AG, 4000 Düsseldorf Method for sheathing a steel pipe
DE3119662A1 (en) * 1981-05-16 1982-12-02 Bayer Ag, 5090 Leverkusen DEVICE FOR PRODUCING A SOLID OR FOAM-MAKING REACTION MIXTURE
US4647416A (en) * 1983-08-03 1987-03-03 Shiley Incorporated Method of preparing a vascular graft prosthesis
NL8602469A (en) * 1986-09-30 1988-04-18 Wavin Bv METHOD AND APPARATUS AND EXTRUSION HEAD FOR MANUFACTURING WELDING TUBES AND WELDING FITTINGS FROM THERMOPLASTIC MATERIAL USING EXTRUDER USING A FIRST TUBE PART.
US5047193A (en) * 1987-03-12 1991-09-10 Isaac Rinkewich Method and apparatus for making honeycomb structures
JPH0789040B2 (en) * 1987-10-22 1995-09-27 日立造船株式会社 Stationary torpedo
US5324371A (en) * 1988-05-30 1994-06-28 Hydro-Plan Engineering Ltd. Process for producing a drip irrigation conduit
IL86549A (en) * 1988-05-30 1991-04-15 Hydro Plan Eng Ltd Process and installation for producing a drip irrigation conduit
GR1001008B (en) * 1990-10-03 1993-03-31 Emmanouil Dermitzakis Dripping pipe with internal joined drippers
US5676897A (en) * 1990-10-03 1997-10-14 Dermitzakis; Emmanuil Dripline duct with internally located emiters and manufacture process
IL95972A (en) * 1990-10-12 1993-03-15 Naan Irrigation Systems Method and apparatus for producing pipes for drip irrigation
US6120634A (en) 1997-02-26 2000-09-19 Micro Irrigation Technologies, Inc. Method and apparatus for forming agricultural drip tape
US6620278B1 (en) 2000-04-18 2003-09-16 Nelson Irrigation Corporation Drip tape manufacturing process
WO2002074444A2 (en) 2001-03-16 2002-09-26 The Toro Company Drip irrigation emitter
ATE357134T1 (en) * 2004-06-03 2007-04-15 Eberhard Kertscher DEVICE FOR PRODUCING IRRIGATION PIPES FOR DRIP IRRIGATION
US20050284966A1 (en) * 2004-06-23 2005-12-29 Defrank Michael Emitter
US20060043219A1 (en) * 2004-09-02 2006-03-02 Moshe Raanan Drip irrigation pipe
US8302887B2 (en) 2005-03-31 2012-11-06 Rain Bird Corporation Drip emitter
US7648085B2 (en) 2006-02-22 2010-01-19 Rain Bird Corporation Drip emitter
US7988438B2 (en) * 2008-02-11 2011-08-02 Advanced Drainage Systems, Inc. Extrusion die vacuum seals
US20100282873A1 (en) * 2009-05-06 2010-11-11 Mattlin Jeffrey L Drip Emitter and Methods of Assembly and Mounting
US10440903B2 (en) 2012-03-26 2019-10-15 Rain Bird Corporation Drip line emitter and methods relating to same
US9485923B2 (en) 2012-03-26 2016-11-08 Rain Bird Corporation Elastomeric emitter and methods relating to same
US20130248622A1 (en) 2012-03-26 2013-09-26 Jae Yung Kim Drip line and emitter and methods relating to same
US9877440B2 (en) 2012-03-26 2018-01-30 Rain Bird Corporation Elastomeric emitter and methods relating to same
US9872444B2 (en) 2013-03-15 2018-01-23 Rain Bird Corporation Drip emitter
USD811179S1 (en) 2013-08-12 2018-02-27 Rain Bird Corporation Emitter part
US10285342B2 (en) 2013-08-12 2019-05-14 Rain Bird Corporation Elastomeric emitter and methods relating to same
US10631473B2 (en) 2013-08-12 2020-04-28 Rain Bird Corporation Elastomeric emitter and methods relating to same
US9883640B2 (en) 2013-10-22 2018-02-06 Rain Bird Corporation Methods and apparatus for transporting elastomeric emitters and/or manufacturing drip lines
US10330559B2 (en) 2014-09-11 2019-06-25 Rain Bird Corporation Methods and apparatus for checking emitter bonds in an irrigation drip line
US10375904B2 (en) 2016-07-18 2019-08-13 Rain Bird Corporation Emitter locating system and related methods
WO2018140772A1 (en) 2017-01-27 2018-08-02 Rain Bird Corporation Pressure compensation members, emitters, drip line and methods relating to same
US10626998B2 (en) 2017-05-15 2020-04-21 Rain Bird Corporation Drip emitter with check valve
USD883048S1 (en) 2017-12-12 2020-05-05 Rain Bird Corporation Emitter part
US11985924B2 (en) 2018-06-11 2024-05-21 Rain Bird Corporation Emitter outlet, emitter, drip line and methods relating to same
US12207599B2 (en) 2021-10-12 2025-01-28 Rain Bird Corporation Emitter coupler and irrigation system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB647644A (en) * 1945-02-02 1950-12-20 Extruded Plastics Inc Improvements in or relating to a method for producing articles sheathed with thermoplastic material

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

Also Published As

Publication number Publication date
US3895085A (en) 1975-07-15
JPS5146530B2 (en) 1976-12-09
FR2197713A1 (en) 1974-03-29
JPS4942760A (en) 1974-04-22
FR2197713B1 (en) 1976-05-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees