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ES318689A1 - Procedure and apparatus to make tubular films of plastic material. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure and apparatus to make tubular films of plastic material. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES318689A1
ES318689A1 ES0318689A ES318689A ES318689A1 ES 318689 A1 ES318689 A1 ES 318689A1 ES 0318689 A ES0318689 A ES 0318689A ES 318689 A ES318689 A ES 318689A ES 318689 A1 ES318689 A1 ES 318689A1
Authority
ES
Spain
Prior art keywords
tube
translation
plastic material
legally binding
google translate
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
ES0318689A
Other languages
Spanish (es)
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.)
British Visqueen Ltd
Original Assignee
British Visqueen Ltd
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 British Visqueen Ltd filed Critical British Visqueen Ltd
Publication of ES318689A1 publication Critical patent/ES318689A1/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
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/023—Half-products, e.g. films, plates
    • B29B13/024—Hollow bodies, e.g. tubes or profiles
    • 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
    • B29C48/885—External treatment, e.g. by using air rings for cooling tubular 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular 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
    • B29C48/001—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

"Process for making tubular films of plastic material" by continuously extruding the material, in a state softened by heat, through a tube-forming mold, continuously removing the tube from the mold, expanding the tube, while still in the softened state by heat , by means of an air bubble or other gas contained within it immediately following the mold, cooling the tube that expands substantially uniformly around its circumference to fix it to a desired diameter, and collapsing the tube to a Flattened form of extension by means including a guide substantially similar to a V, whose members make contact with diametrically opposed portions of the tube, characterized in that, while the tube is being collapsed by said guide, those portions of the tube that are intended to form the edge folds of the flattened film are cooled by contact with refr surfaces light. (Machine-translation by Google Translate, not legally binding)
ES0318689A 1964-10-20 1965-10-20 Procedure and apparatus to make tubular films of plastic material. (Machine-translation by Google Translate, not legally binding) Expired ES318689A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4273464 1964-10-20

Publications (1)

Publication Number Publication Date
ES318689A1 true ES318689A1 (en) 1966-05-16

Family

ID=10425743

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0318689A Expired ES318689A1 (en) 1964-10-20 1965-10-20 Procedure and apparatus to make tubular films of plastic material. (Machine-translation by Google Translate, not legally binding)

Country Status (10)

Country Link
AT (1) AT271001B (en)
BE (1) BE671166A (en)
CH (1) CH437756A (en)
DE (1) DE1504064C2 (en)
DK (1) DK114442B (en)
ES (1) ES318689A1 (en)
FI (1) FI41456C (en)
IL (1) IL24483A (en)
LU (1) LU49661A1 (en)
SE (1) SE302208B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK144183A (en) * 1982-04-02 1983-10-03 Fbk International Corp PROCEDURE AND APPARATUS FOR COOLING AND DISPOSAL OF AN EXTRADED WRAPPING OF PLASTIC MATERIAL

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL280792A (en) * 1961-07-12

Also Published As

Publication number Publication date
BE671166A (en) 1966-04-20
FI41456B (en) 1969-07-31
DK114442B (en) 1969-06-30
DE1504064B1 (en) 1970-09-03
IL24483A (en) 1969-01-29
LU49661A1 (en) 1965-12-20
FI41456C (en) 1969-11-10
SE302208B (en) 1968-07-08
DE1504064C2 (en) 1980-04-17
CH437756A (en) 1967-06-15
AT271001B (en) 1969-05-27

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