FR2025018A1 - Dispositif de refroidissement assurant l'arrivee uniforme de gaz de refroidissement a la filiere d'une tete d'extrusion-soufflage de feuilles tubulaires - Google Patents

Dispositif de refroidissement assurant l'arrivee uniforme de gaz de refroidissement a la filiere d'une tete d'extrusion-soufflage de feuilles tubulaires

Info

Publication number
FR2025018A1
FR2025018A1 FR6941409A FR6941409A FR2025018A1 FR 2025018 A1 FR2025018 A1 FR 2025018A1 FR 6941409 A FR6941409 A FR 6941409A FR 6941409 A FR6941409 A FR 6941409A FR 2025018 A1 FR2025018 A1 FR 2025018A1
Authority
FR
France
Prior art keywords
regard
injection nozzle
arranged transversely
blowing device
deflecting wall
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.)
Withdrawn
Application number
FR6941409A
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.)
Oerlikon Barmag AG
Original Assignee
Barmag Barmer Maschinenfabrik AG
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 DE19681812078 external-priority patent/DE1812078A1/de
Priority claimed from DE19691953113 external-priority patent/DE1953113A1/de
Application filed by Barmag Barmer Maschinenfabrik AG filed Critical Barmag Barmer Maschinenfabrik AG
Publication of FR2025018A1 publication Critical patent/FR2025018A1/fr
Withdrawn legal-status Critical Current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
    • B29C48/88—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
    • B29C48/913—Cooling of hollow articles of tubular films externally
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Press Drives And Press Lines (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
FR6941409A 1968-12-02 1969-12-01 Dispositif de refroidissement assurant l'arrivee uniforme de gaz de refroidissement a la filiere d'une tete d'extrusion-soufflage de feuilles tubulaires Withdrawn FR2025018A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19681812078 DE1812078A1 (de) 1968-12-02 1968-12-02 Kuehlring fuer Folienblasvorrichtung od.dgl.
DE19691953113 DE1953113A1 (de) 1969-10-22 1969-10-22 Vorrichtung zum gleichmaessigen Zufuehren von Kuehlgas an die Austrittsduese einer Folienblasvorrichtung

Publications (1)

Publication Number Publication Date
FR2025018A1 true FR2025018A1 (fr) 1970-09-04

Family

ID=25756520

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6941409A Withdrawn FR2025018A1 (fr) 1968-12-02 1969-12-01 Dispositif de refroidissement assurant l'arrivee uniforme de gaz de refroidissement a la filiere d'une tete d'extrusion-soufflage de feuilles tubulaires

Country Status (5)

Country Link
BE (1) BE741605A (fr)
CH (1) CH496539A (fr)
ES (1) ES374108A1 (fr)
FR (1) FR2025018A1 (fr)
NL (1) NL6917970A (fr)

Also Published As

Publication number Publication date
CH496539A (de) 1970-09-30
NL6917970A (fr) 1970-06-04
ES374108A1 (es) 1971-12-16
BE741605A (fr) 1970-04-16

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Legal Events

Date Code Title Description
RE Withdrawal of published application