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ES476275A1 - Un metodo para la fabricacion de envueltas de material ter- moplastico y disposicion para realizarlo - Google Patents

Un metodo para la fabricacion de envueltas de material ter- moplastico y disposicion para realizarlo

Info

Publication number
ES476275A1
ES476275A1 ES476275A ES476275A ES476275A1 ES 476275 A1 ES476275 A1 ES 476275A1 ES 476275 A ES476275 A ES 476275A ES 476275 A ES476275 A ES 476275A ES 476275 A1 ES476275 A1 ES 476275A1
Authority
ES
Spain
Prior art keywords
mandrel
sheet
leading end
winding
casings
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
ES476275A
Other languages
English (en)
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.)
Tetra Pak AB
Original Assignee
Tetra Pak International AB
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 Tetra Pak International AB filed Critical Tetra Pak International AB
Publication of ES476275A1 publication Critical patent/ES476275A1/es
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02Bending or folding
    • B29C53/04Bending or folding of plates or sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36Bending and joining, e.g. for making hollow articles
    • B29C53/38Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/40Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of definite length, i.e. discrete articles
    • B29C53/42Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of definite length, i.e. discrete articles using internal forming surfaces, e.g. mandrels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36Bending and joining, e.g. for making hollow articles
    • B29C53/38Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/40Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of definite length, i.e. discrete articles
    • B29C53/42Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of definite length, i.e. discrete articles using internal forming surfaces, e.g. mandrels
    • B29C53/44Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of definite length, i.e. discrete articles using internal forming surfaces, e.g. mandrels rotatable about the axis of the article
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C61/00Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/02Thermal shrinking
    • B29C61/025Thermal shrinking for the production of hollow or tubular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B29C35/045Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037Other properties
    • B29K2995/0049Heat shrinkable
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10Methods of surface bonding and/or assembly therefor
    • Y10T156/1002Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1028Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by bending, drawing or stretch forming sheet to assume shape of configured lamina while in contact therewith
    • Y10T156/1031Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by bending, drawing or stretch forming sheet to assume shape of configured lamina while in contact therewith with preshaping of lamina
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10Methods of surface bonding and/or assembly therefor
    • Y10T156/1002Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1028Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by bending, drawing or stretch forming sheet to assume shape of configured lamina while in contact therewith
    • Y10T156/1033Flexible sheet to cylinder lamina
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10Methods of surface bonding and/or assembly therefor
    • Y10T156/1002Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1036Bending of one piece blank and joining edges to form article
    • Y10T156/1038Hollow cylinder article

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

Un método para la fabricación de envueltas de material termoplástico de encogimiento por calor arrollando para ello una hoja de material alrededor de un útil de conformación y uniendo entre sí los extremos de la hoja caracterizado porque, antes de arrollar la hoja de material alrededor del útil de conformación, se pre calienta la misma a lo largo de toda su longitud al menos por el lado que mira hacia el útil de conformación, hasta una temperatura que coincide sustancialmente con la temperatura de reblandecimiento del material, y porque se somete el extremo frontal de la hoja de material en el lado que mira hacia el útil a un calentamiento intensivo complementario hasta una temperatura que excede de aquella a la cual se inicia el encogimiento, de modo que, debido a la capacidad de encogimiento del material, se comunica al citado extremo de la hoja una forma curvada en dirección hacia el útil.
ES476275A 1977-12-23 1978-12-22 Un metodo para la fabricacion de envueltas de material ter- moplastico y disposicion para realizarlo Expired ES476275A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7714734A SE409562B (sv) 1977-12-23 1977-12-23 Sett och anordning vid tillverkning av hylsor av termoplastiskt, vermekrympbart material

Publications (1)

Publication Number Publication Date
ES476275A1 true ES476275A1 (es) 1979-06-01

Family

ID=20333309

Family Applications (1)

Application Number Title Priority Date Filing Date
ES476275A Expired ES476275A1 (es) 1977-12-23 1978-12-22 Un metodo para la fabricacion de envueltas de material ter- moplastico y disposicion para realizarlo

Country Status (21)

Country Link
US (2) US4284448A (es)
JP (1) JPS5495680A (es)
AR (1) AR215970A1 (es)
AT (1) AT368063B (es)
AU (1) AU528264B2 (es)
BE (1) BE872909A (es)
BR (1) BR7808357A (es)
CA (1) CA1123329A (es)
CH (1) CH636802A5 (es)
DE (1) DE2855076C3 (es)
DK (1) DK151855C (es)
ES (1) ES476275A1 (es)
FI (1) FI67049C (es)
FR (1) FR2412399A1 (es)
GB (1) GB2011013B (es)
IE (1) IE47762B1 (es)
IT (1) IT1102436B (es)
NL (1) NL7812365A (es)
NO (1) NO149918C (es)
SE (1) SE409562B (es)
SU (1) SU967267A3 (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048177B1 (en) * 1980-09-17 1985-05-08 Raychem Limited Process for the production of polymeric articles
JPS5966305A (ja) * 1982-10-05 1984-04-14 Tsukishima Kikai Co Ltd 向流式溶融物冷却精製法
DE3536174C1 (de) * 1985-10-10 1986-07-31 Grünzweig + Hartmann und Glasfaser AG, 6700 Ludwigshafen Verfahren und Einrichtung zum Kaschieren einer Rohrdaemmschale mit einer Folie
GB2196292A (en) * 1986-09-17 1988-04-27 Grace W R & Co Heat-shrinkable tubular film material
NZ221628A (en) * 1986-09-17 1991-09-25 Grace W R & Co Process for stuffing heat shrunk tube: two stage heating of heat shrinkable tubular film material
AUPO703597A0 (en) * 1997-05-26 1997-06-19 King, Norman Frederick Sheet forming apparatus
PT1177976E (pt) * 2000-07-03 2004-04-30 Tetra Laval Holdings & Finance Maquina de embalagem para produzir continuamente embalagens seladas de um produto alimentar que se pode vazar e celulas fotoelectricas de caracterizacao que se podem programar
ITBO20040491A1 (it) * 2004-07-30 2004-10-30 Aetna Group Spa Macchina e metodo per la formazione di spezzoni tubolari di film da imballaggio
DK2032340T3 (da) * 2006-06-05 2013-10-14 3M Innovative Properties Co Fremgangsmåde til påføring af et beskyttende lag på en rørsamling
BRPI0911315B1 (pt) 2008-04-10 2019-05-07 Aisapack Holding S.A. Processo de fabricação de tubos por soldagem
CN104836169A (zh) * 2015-04-30 2015-08-12 应德华 用于保护车辆线路接头的防尘套

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4894774A (es) * 1972-03-21 1973-12-06
JPS49125476A (es) * 1973-04-02 1974-11-30
CH611833A5 (es) * 1976-03-31 1979-06-29 Tetra Pak Dev
JPS52128974A (en) * 1976-04-23 1977-10-28 Nippon Petrochemicals Co Ltd Process for making thermoplastic moldings

Also Published As

Publication number Publication date
IE782446L (en) 1979-06-23
SU967267A3 (ru) 1982-10-15
DK151855C (da) 1988-06-06
AR215970A1 (es) 1979-11-15
JPS642501B2 (es) 1989-01-17
CA1123329A (en) 1982-05-11
AU4278178A (en) 1979-06-28
DE2855076A1 (de) 1979-06-28
US4430140A (en) 1984-02-07
ATA915978A (de) 1982-01-15
NL7812365A (nl) 1979-06-26
SE7714734L (sv) 1979-06-24
DK575878A (da) 1979-06-24
DK151855B (da) 1988-01-11
FR2412399A1 (fr) 1979-07-20
BR7808357A (pt) 1979-08-07
IT7831287A0 (it) 1978-12-22
IT1102436B (it) 1985-10-07
BE872909A (fr) 1979-04-17
US4284448A (en) 1981-08-18
DE2855076B2 (de) 1980-05-08
GB2011013B (en) 1982-02-24
JPS5495680A (en) 1979-07-28
FI67049C (fi) 1985-01-10
IE47762B1 (en) 1984-06-13
NO149918C (no) 1984-07-18
GB2011013A (en) 1979-07-04
FR2412399B1 (es) 1983-12-30
DE2855076C3 (de) 1981-01-15
NO149918B (no) 1984-04-09
NO784314L (no) 1979-06-26
SE409562B (sv) 1979-08-27
FI67049B (fi) 1984-09-28
AU528264B2 (en) 1983-04-21
AT368063B (de) 1982-09-10
FI783903A (fi) 1979-06-24
CH636802A5 (de) 1983-06-30

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971201