FR2372688A1 - Gaine tubulaire radialement thermoretractable et son procede de fabrication - Google Patents

Gaine tubulaire radialement thermoretractable et son procede de fabrication

Info

Publication number
FR2372688A1
FR2372688A1 FR7637411A FR7637411A FR2372688A1 FR 2372688 A1 FR2372688 A1 FR 2372688A1 FR 7637411 A FR7637411 A FR 7637411A FR 7637411 A FR7637411 A FR 7637411A FR 2372688 A1 FR2372688 A1 FR 2372688A1
Authority
FR
France
Prior art keywords
heat shrinkable
hydrostatic pressure
reheated
mfr
dilation
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.)
Withdrawn
Application number
FR7637411A
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.)
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
Priority to FR7637411A priority Critical patent/FR2372688A1/fr
Publication of FR2372688A1 publication Critical patent/FR2372688A1/fr
Withdrawn legal-status Critical Current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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/507—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through an annular die
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02—Bending or folding
    • B29C53/10—Bending or folding of blown tubular films, e.g. gusseting
    • 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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
    • 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
    • B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
    • 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
    • B29C48/09—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
    • B29K—INDEXING 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

Procédé de fabrication d'une gaine tubulaire radialement thermorétractable extrudée à partir d'un polymère synthétique à paroi de structure soit ductile soit cellulaire caractérisé en ce que la dilatation radiale en est provoquée sous le seul poids d'un colonne de liquide librement maintenue dans un bras de la gaine dont la paroi est ramollie par un réchauffement extérieur et qui est guidée lors de son avancement vers un organe d'appui situe dans un point surélevé, pour être refroidie des sa dilatation.
FR7637411A 1976-12-06 1976-12-06 Gaine tubulaire radialement thermoretractable et son procede de fabrication Withdrawn FR2372688A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7637411A FR2372688A1 (fr) 1976-12-06 1976-12-06 Gaine tubulaire radialement thermoretractable et son procede de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7637411A FR2372688A1 (fr) 1976-12-06 1976-12-06 Gaine tubulaire radialement thermoretractable et son procede de fabrication

Publications (1)

Publication Number Publication Date
FR2372688A1 true FR2372688A1 (fr) 1978-06-30

Family

ID=9180952

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7637411A Withdrawn FR2372688A1 (fr) 1976-12-06 1976-12-06 Gaine tubulaire radialement thermoretractable et son procede de fabrication

Country Status (1)

Country Link
FR (1) FR2372688A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0425289A2 (fr) * 1989-10-27 1991-05-02 Plasticos Polyfilm S/A Fabrication de films thermoplastiques traités mécaniquement
US5225139A (en) * 1989-10-27 1993-07-06 Plasticos Polyfilm S.A. Process for the manufacturing of a mechanically conditioned thermoplastic film with biaxially recoverable stresses
FR2736861A1 (fr) * 1995-07-18 1997-01-24 Plastiques De La Deome Procede et installation pour assurer le bi-etirage d'une gaine primaire
EP1025979A2 (fr) * 1999-02-04 2000-08-09 WindmÀ¶ller & Hölscher Procédé pour réguler le diamètre d'une bulle d'un film tubulaire gonflé ayant une ligne médiane verticale, entre les cylindres d'alimentation et les cylindres de pinçage

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0425289A2 (fr) * 1989-10-27 1991-05-02 Plasticos Polyfilm S/A Fabrication de films thermoplastiques traités mécaniquement
EP0425289A3 (en) * 1989-10-27 1992-07-01 Plasticos Polyfilm S/A Manufacture of mechanically conditioned thermoplastic films
US5225139A (en) * 1989-10-27 1993-07-06 Plasticos Polyfilm S.A. Process for the manufacturing of a mechanically conditioned thermoplastic film with biaxially recoverable stresses
FR2736861A1 (fr) * 1995-07-18 1997-01-24 Plastiques De La Deome Procede et installation pour assurer le bi-etirage d'une gaine primaire
WO1997003808A1 (fr) * 1995-07-18 1997-02-06 Les Plastiques De La Deome Procede et installation pour assurer le bi-etirage d'une gaine primaire
EP1025979A2 (fr) * 1999-02-04 2000-08-09 WindmÀ¶ller & Hölscher Procédé pour réguler le diamètre d'une bulle d'un film tubulaire gonflé ayant une ligne médiane verticale, entre les cylindres d'alimentation et les cylindres de pinçage
EP1025979A3 (fr) * 1999-02-04 2001-03-07 WindmÀ¶ller & Hölscher Procédé pour réguler le diamètre d'une bulle d'un film tubulaire gonflé ayant une ligne médiane verticale, entre les cylindres d'alimentation et les cylindres de pinçage

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Legal Events

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