GB1509114A - Method of flattening a thin tubular sheath of plastics material and apparatus for carrying out this method - Google Patents

Method of flattening a thin tubular sheath of plastics material and apparatus for carrying out this method

Info

Publication number
GB1509114A
GB1509114A GB22366/76A GB2236676A GB1509114A GB 1509114 A GB1509114 A GB 1509114A GB 22366/76 A GB22366/76 A GB 22366/76A GB 2236676 A GB2236676 A GB 2236676A GB 1509114 A GB1509114 A GB 1509114A
Authority
GB
United Kingdom
Prior art keywords
film
nip
flattening
extruded
pair
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
GB22366/76A
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.)
ATO Chimie SA
Original Assignee
ATO Chimie SA
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 ATO Chimie SA filed Critical ATO Chimie SA
Publication of GB1509114A publication Critical patent/GB1509114A/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
    • B29C48/03—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
    • 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
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • 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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
GB22366/76A 1975-06-09 1976-05-28 Method of flattening a thin tubular sheath of plastics material and apparatus for carrying out this method Expired GB1509114A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7517883A FR2314036A1 (fr) 1975-06-09 1975-06-09 Procede de mise a plat d'une gaine en matiere plastique realisee par extrusion soufflage et dispositif pour la mise en oeuvre de ce procede

Publications (1)

Publication Number Publication Date
GB1509114A true GB1509114A (en) 1978-04-26

Family

ID=9156200

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22366/76A Expired GB1509114A (en) 1975-06-09 1976-05-28 Method of flattening a thin tubular sheath of plastics material and apparatus for carrying out this method

Country Status (4)

Country Link
DE (1) DE2623580A1 (enrdf_load_stackoverflow)
FR (1) FR2314036A1 (enrdf_load_stackoverflow)
GB (1) GB1509114A (enrdf_load_stackoverflow)
IT (1) IT1062172B (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10115259C1 (de) * 2001-03-28 2002-10-02 Kiefel Extrusion Gmbh Luftwendestange

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2322040A1 (de) * 1973-05-02 1974-11-21 Demag Ag Flachlegevorrichtung fuer eine kunststoffschlauchfolienbahn

Also Published As

Publication number Publication date
FR2314036A1 (fr) 1977-01-07
IT1062172B (it) 1983-07-28
FR2314036B1 (enrdf_load_stackoverflow) 1977-12-09
DE2623580A1 (de) 1976-12-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee