CH581539A5 - - Google Patents

Info

Publication number
CH581539A5
CH581539A5 CH313475A CH313475A CH581539A5 CH 581539 A5 CH581539 A5 CH 581539A5 CH 313475 A CH313475 A CH 313475A CH 313475 A CH313475 A CH 313475A CH 581539 A5 CH581539 A5 CH 581539A5
Authority
CH
Switzerland
Application number
CH313475A
Original Assignee
Windmoeller & Hoelscher
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 Windmoeller & Hoelscher filed Critical Windmoeller & Hoelscher
Publication of CH581539A5 publication Critical patent/CH581539A5/xx

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
    • B29C48/88—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
    • B29C48/03—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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
CH313475A 1974-04-05 1975-03-12 CH581539A5 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2416758 1974-04-05

Publications (1)

Publication Number Publication Date
CH581539A5 true CH581539A5 (pt) 1976-11-15

Family

ID=5912295

Family Applications (1)

Application Number Title Priority Date Filing Date
CH313475A CH581539A5 (pt) 1974-04-05 1975-03-12

Country Status (7)

Country Link
US (1) US3947170A (pt)
JP (1) JPS50130861A (pt)
BR (1) BR7502029A (pt)
CA (1) CA1055668A (pt)
CH (1) CH581539A5 (pt)
FR (1) FR2266586B3 (pt)
IT (1) IT1034412B (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4236884A (en) * 1975-09-05 1980-12-02 Gloucester Engineering Co., Inc. Internal air cooling of tubular plastic film
JPS5829210B2 (ja) * 1978-02-06 1983-06-21 日立造船株式会社 バブル内部冷却式ロ−タリ−インフレ−ションダイス
JPS5586720A (en) * 1978-12-25 1980-06-30 Chisso Eng Kk Manufacturing device for plastic tubular film
DE3331832C1 (de) * 1983-09-03 1985-01-10 Reifenhäuser GmbH & Co. Maschinenfabrik, 5210 Troisdorf Vertikal arbeitender Folienblaskopf
US4701361A (en) * 1985-11-20 1987-10-20 Minigrip, Inc. Tubular film with transverse closure strips
US4808099A (en) * 1985-11-20 1989-02-28 Minigrip, Inc. Apparatus for making tubular film with transverse closure strips
DE3623548A1 (de) * 1986-07-12 1988-01-28 Reifenhaeuser Masch Vorrichtung fuer die herstellung von kunststoffolien
DE4405462C1 (de) * 1994-02-21 1995-04-20 Windmoeller & Hoelscher Folienblaskopf zur Extrusion eines Schlauches aus thermoplastischer Kunststoffschmelze

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3176347A (en) * 1962-11-30 1965-04-06 Phillips Petroleum Co Apparatus for producing thermoplastic tubing
NO119195B (pt) * 1965-10-27 1970-04-06 J Thordarson
US3450806A (en) * 1965-11-26 1969-06-17 Exxon Research Engineering Co Process and apparatus for the formation of film
DE1953113A1 (de) * 1969-10-22 1971-05-06 Barmag Barmer Maschf Vorrichtung zum gleichmaessigen Zufuehren von Kuehlgas an die Austrittsduese einer Folienblasvorrichtung
CH515795A (de) * 1969-12-04 1971-11-30 Windmoeller & Hoelscher Kühlvorrichtung für Kunststoff-Schlauchfolien
DE2032346C3 (de) * 1970-06-30 1982-12-23 Windmöller & Hölscher, 4540 Lengerich Kühlvorrichtung für mittels eines Folienblaskopfes hergestellte Kunststoff-Schlauchfolien
DE2262190B2 (de) * 1972-12-19 1975-02-06 Windmoeller & Hoelscher, 4540 Lengerich Kühlvorrichtung für mittels eines Folienblaskopfes hergestellte Kunstoff-Schlauchfolien mH Luftkühlung

Also Published As

Publication number Publication date
BR7502029A (pt) 1976-08-31
US3947170A (en) 1976-03-30
IT1034412B (it) 1979-09-10
JPS50130861A (pt) 1975-10-16
CA1055668A (en) 1979-06-05
FR2266586A1 (pt) 1975-10-31
FR2266586B3 (pt) 1977-11-18

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Legal Events

Date Code Title Description
PL Patent ceased