IT1170455B - Utensile di soffiatura di pellicola con alimentazione di massa fusa centrale e raffreddamento interno di pellicola - Google Patents

Utensile di soffiatura di pellicola con alimentazione di massa fusa centrale e raffreddamento interno di pellicola

Info

Publication number
IT1170455B
IT1170455B IT48904/83A IT4890483A IT1170455B IT 1170455 B IT1170455 B IT 1170455B IT 48904/83 A IT48904/83 A IT 48904/83A IT 4890483 A IT4890483 A IT 4890483A IT 1170455 B IT1170455 B IT 1170455B
Authority
IT
Italy
Prior art keywords
film
melt feed
central melt
blowing tool
internal
Prior art date
Application number
IT48904/83A
Other languages
English (en)
Other versions
IT8348904A0 (it
Inventor
Reinhard Teschke
Manfred Garberding
Original Assignee
Umformtechnik Herbert Warneke
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
Priority claimed from DD24297582A external-priority patent/DD207620A3/de
Priority claimed from DD24994083A external-priority patent/DD301384A7/de
Application filed by Umformtechnik Herbert Warneke filed Critical Umformtechnik Herbert Warneke
Publication of IT8348904A0 publication Critical patent/IT8348904A0/it
Application granted granted Critical
Publication of IT1170455B publication Critical patent/IT1170455B/it

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
    • B29C48/9125—Cooling of hollow articles of tubular films internally
    • 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
    • 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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
IT48904/83A 1982-09-02 1983-08-31 Utensile di soffiatura di pellicola con alimentazione di massa fusa centrale e raffreddamento interno di pellicola IT1170455B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD24297582A DD207620A3 (de) 1982-09-02 1982-09-02 Rotierendes folienblaswerkzeug mit zentraler schmelzezufuehrung und folieninnenkuehlung
DD24994083A DD301384A7 (de) 1983-04-18 1983-04-18 Rotierendes folienblaswerkzeug mit zentraler schmelzezufuehrung und folieninnenkuehlung

Publications (2)

Publication Number Publication Date
IT8348904A0 IT8348904A0 (it) 1983-08-31
IT1170455B true IT1170455B (it) 1987-06-03

Family

ID=25747775

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48904/83A IT1170455B (it) 1982-09-02 1983-08-31 Utensile di soffiatura di pellicola con alimentazione di massa fusa centrale e raffreddamento interno di pellicola

Country Status (4)

Country Link
DE (1) DE3326870A1 (it)
FR (1) FR2532582B1 (it)
GB (1) GB2126160B (it)
IT (1) IT1170455B (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331832C1 (de) * 1983-09-03 1985-01-10 Reifenhäuser GmbH & Co. Maschinenfabrik, 5210 Troisdorf Vertikal arbeitender Folienblaskopf
DD273742A3 (de) * 1986-09-08 1989-11-29 Schwerin Plastmaschinen Rotierendes folienblaswerkzeug mit zentraler schmelzezufuehrung und folieninnenkuehlung
CA1274366C (en) * 1987-03-31 1990-09-25 BUBBLE DEVICE AND STABILIZER FOR CONTINUOUS EXTRUSION PROCESS FOR THE MANUFACTURE OF BLOWN FILMS

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2508930C3 (de) * 1975-03-01 1978-12-21 Reifenhaeuser Kg, 5210 Troisdorf Vorrichtung für die Herstellung von Kunststoffolien durch Blasen
DE2509024C3 (de) * 1975-03-01 1985-04-25 Reifenhäuser KG, 5210 Troisdorf Vorrichtung für die Herstellung von Kunststoffolien durch Blasen
DE2610335A1 (de) * 1975-04-23 1976-11-04 Plast Elastverarbeitungsmasch Folienblaswerkzeug
CH627685A5 (de) * 1978-05-03 1982-01-29 Gottlieb Looser Folienblaskopf zur herstellung von schlauchfolien aus kunststoff.
DD137553B1 (de) * 1978-07-07 1980-12-10 Helmar Franz Rotierendes folienblaswerkzeug mit folieninnenkuehlung

Also Published As

Publication number Publication date
IT8348904A0 (it) 1983-08-31
FR2532582A1 (fr) 1984-03-09
GB2126160A (en) 1984-03-21
GB2126160B (en) 1986-04-03
FR2532582B1 (fr) 1987-03-20
DE3326870C2 (it) 1987-04-16
GB8323325D0 (en) 1983-10-05
DE3326870A1 (de) 1984-03-08

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