GB1133061A - Method and apparatus for the manufacture of heat shrinkable sheathings of plastics material - Google Patents

Method and apparatus for the manufacture of heat shrinkable sheathings of plastics material

Info

Publication number
GB1133061A
GB1133061A GB18077/66A GB1807766A GB1133061A GB 1133061 A GB1133061 A GB 1133061A GB 18077/66 A GB18077/66 A GB 18077/66A GB 1807766 A GB1807766 A GB 1807766A GB 1133061 A GB1133061 A GB 1133061A
Authority
GB
United Kingdom
Prior art keywords
tube
heater
belt
april
plastics material
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
GB18077/66A
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.)
FRANCINE ADANY (NEE DISCE)
Original Assignee
FRANCINE ADANY (NEE DISCE)
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 FRANCINE ADANY (NEE DISCE) filed Critical FRANCINE ADANY (NEE DISCE)
Publication of GB1133061A publication Critical patent/GB1133061A/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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • B29C61/08—Making preforms having internal stresses, e.g. plastic memory by stretching tubes
    • 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
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • 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
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
    • 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

Abstract

1,133,061. Manufacturing heat-shrinkable plastics. F. ADANY. 25 April, 1966 [26 April, 1965], No. 18077/66. Heading B5A. A heat-shrinkable sheathing of plastics material, e.g. polyethylene cross-linked by irradiation, is formed by passing a pre-extruded tube 9 enclosed by a conveyer belt 3 through a tubular heater 2, expanding the tube 9 without longitudinal stretching so that belt 3 contacts the internal surface of heater 2, progressively increasing the temperature of tube 9 as it moves through heater 2 and rapidly cooling it as it emerges therefrom. Tube 9 may be taken from a reel, the coiled end of the tube being connected to a source of gas under pressure, and the treated tube may be wound on a further reel after it has passed between niprollers 11 which maintain a constant pressure, e.g. 5 cm. of Hg, within the tube. Belt 3, driven by motor 6, may be of glass-fibre reinforced PTFE, and is wrapped around tube 9 by a series of rings 7 whose diameters decrease in the downstream direction to that of the bore of heater 2. Heater 2 comprises a metallic casing 1a surrounded by a resistance element 1b and insulation 1c. Element 1b comprises a wire in the form of a helix whose pitch decreases in the downstream direction to a zone of maximum temperature, e.g. 130-140‹ C., where the pitch is a constant minimum. Cooling device 10 may be an air blower.
GB18077/66A 1965-04-26 1966-04-25 Method and apparatus for the manufacture of heat shrinkable sheathings of plastics material Expired GB1133061A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR14615A FR1441623A (en) 1965-04-26 1965-04-26 Device and method for the manufacture of shrink sleeves in plastics, in particular in polyethylene crosslinked by irradiation

Publications (1)

Publication Number Publication Date
GB1133061A true GB1133061A (en) 1968-11-06

Family

ID=8577276

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18077/66A Expired GB1133061A (en) 1965-04-26 1966-04-25 Method and apparatus for the manufacture of heat shrinkable sheathings of plastics material

Country Status (3)

Country Link
DE (1) DE1604403B1 (en)
FR (1) FR1441623A (en)
GB (1) GB1133061A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1741546A2 (en) * 2002-04-16 2007-01-10 Prysmian Cavi e Sistemi Energia S.r.l. Process for manufacturing a micro-structured optical fibre

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI64308C (en) * 1979-06-29 1983-11-10 Wiik & Hoeglund FOER FARING FOER FRAMSTAELLNING AV KRYMPMUFFAR AV TVAERBINDANDE PLAST
AT375169B (en) * 1982-04-26 1984-07-10 Austria Email Eht Ag EXTERNAL COVERING FOR HOT WATER TANKS
GB8630552D0 (en) * 1986-12-22 1987-02-04 Raychem Ltd Consolidating tubular composites
FR2817193B1 (en) * 2000-11-28 2003-09-12 Pechiney Emballage Alimentaire PROCESS FOR THE MANUFACTURE OF CAPSULES WITH HEAT SHRINKABLE SKIRTS AND CAPSULES OBTAINED BY THE PROCESS
GB0707418D0 (en) 2007-04-17 2007-05-23 Smith & Nephew Dental implants
EP2142353A1 (en) 2007-04-18 2010-01-13 Smith & Nephew PLC Expansion moulding of shape memory polymers
JP5520814B2 (en) 2007-04-19 2014-06-11 スミス アンド ネフュー インコーポレーテッド Multimodal shape memory polymer
EP2148638A2 (en) 2007-04-19 2010-02-03 Smith & Nephew, Inc. Knee and shoulder joint prosthesis
WO2008130989A2 (en) 2007-04-19 2008-10-30 Smith & Nephew, Inc. Prosthetic implants
DE602008006181D1 (en) 2007-04-19 2011-05-26 Smith & Nephew Inc GRAFT FIXATION
CN101730551B (en) * 2007-04-19 2016-01-27 史密夫和内修有限公司 Orientated polymeric devices
CN112848229B (en) * 2020-12-30 2022-12-06 成都前宏科技股份有限公司 Automatic thermal shrinkage machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784456A (en) * 1953-07-07 1957-03-12 Du Pont Heat-shrinkable film and process for producing the same
US2936491A (en) * 1956-12-19 1960-05-17 Amp Inc Method for increasing the diameter of thermoplastic tubing
US3388017A (en) * 1963-12-18 1968-06-11 American Can Co Tube making method and apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1741546A2 (en) * 2002-04-16 2007-01-10 Prysmian Cavi e Sistemi Energia S.r.l. Process for manufacturing a micro-structured optical fibre
EP1741546A3 (en) * 2002-04-16 2007-10-17 Prysmian Cavi e Sistemi Energia S.r.l. Process for manufacturing a micro-structured optical fibre

Also Published As

Publication number Publication date
DE1604403B1 (en) 1970-11-26
FR1441623A (en) 1966-06-10

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