FR2407808A1 - Filiere a alimentation semi-centrale pour la production de gaines en matiere synthetique - Google Patents

Filiere a alimentation semi-centrale pour la production de gaines en matiere synthetique

Info

Publication number
FR2407808A1
FR2407808A1 FR7734201A FR7734201A FR2407808A1 FR 2407808 A1 FR2407808 A1 FR 2407808A1 FR 7734201 A FR7734201 A FR 7734201A FR 7734201 A FR7734201 A FR 7734201A FR 2407808 A1 FR2407808 A1 FR 2407808A1
Authority
FR
France
Prior art keywords
low pressure
screens
contg
suppress
extrusion die
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.)
Granted
Application number
FR7734201A
Other languages
English (en)
Other versions
FR2407808B3 (fr
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.)
SCOMAC
Original Assignee
SCOMAC
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 SCOMAC filed Critical SCOMAC
Priority to FR7734201A priority Critical patent/FR2407808A1/fr
Publication of FR2407808A1 publication Critical patent/FR2407808A1/fr
Application granted granted Critical
Publication of FR2407808B3 publication Critical patent/FR2407808B3/fr
Granted 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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

Landscapes

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

Abstract

CETTE FILIERE EST DU TYPE COMPOSE D'UNE FILIERE ET D'UN POINCON PORTE PAR LADITE FILIERE ET DELIMITANT AVEC CELLE-CI UN CANAL ANNULAIRE ET UN BOL D'ALIMENTATION, LEDIT POINCON COMPORTANT DANS SA PARTIE TRAVERSANT LE CANAL ANNULAIRE UNE PLURALITE DE PERFORATIONS FORMANT CANAUX. SELON L'INVENTION ELLE COMPREND, SUCCESSIVEMENT, EN AVAL DES PERFORATIONS DU POINCON ET DANS LA TRAJECTOIRE DE LA MATIERE SYNTHETIQUE, UNE ZONE DE COMPRESSION, UNE CHAMBRE ANNULAIRE COMPORTANT PLUSIEURS TAMIS ESPACES ET UNE ZONE DE COMPRESSION DE CARACTERISTIQUES IDENTIQUES A LA ZONE DE DECOMPRESSION PRECITEE. CETTE FILIERE PEUT ETRE UTILISEE POUR LA TRANSFORMATION DE TOUTES MATIERES SYNTHETIQUES ET, NOTAMMENT, DU POLYETHYLENE.
FR7734201A 1977-11-07 1977-11-07 Filiere a alimentation semi-centrale pour la production de gaines en matiere synthetique Granted FR2407808A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7734201A FR2407808A1 (fr) 1977-11-07 1977-11-07 Filiere a alimentation semi-centrale pour la production de gaines en matiere synthetique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7734201A FR2407808A1 (fr) 1977-11-07 1977-11-07 Filiere a alimentation semi-centrale pour la production de gaines en matiere synthetique

Publications (2)

Publication Number Publication Date
FR2407808A1 true FR2407808A1 (fr) 1979-06-01
FR2407808B3 FR2407808B3 (fr) 1980-07-11

Family

ID=9197576

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7734201A Granted FR2407808A1 (fr) 1977-11-07 1977-11-07 Filiere a alimentation semi-centrale pour la production de gaines en matiere synthetique

Country Status (1)

Country Link
FR (1) FR2407808A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4681721A (en) * 1985-11-06 1987-07-21 Mobil Oil Corporation Thermoplastic film extrusion process employing die with filtering arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4681721A (en) * 1985-11-06 1987-07-21 Mobil Oil Corporation Thermoplastic film extrusion process employing die with filtering arrangement

Also Published As

Publication number Publication date
FR2407808B3 (fr) 1980-07-11

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