NL6917970A - - Google Patents

Info

Publication number
NL6917970A
NL6917970A NL6917970A NL6917970A NL6917970A NL 6917970 A NL6917970 A NL 6917970A NL 6917970 A NL6917970 A NL 6917970A NL 6917970 A NL6917970 A NL 6917970A NL 6917970 A NL6917970 A NL 6917970A
Authority
NL
Netherlands
Application number
NL6917970A
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 filed Critical
Publication of NL6917970A publication Critical patent/NL6917970A/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
    • 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)
NL6917970A 1968-12-02 1969-11-28 NL6917970A (xx)

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
NL6917970A true NL6917970A (xx) 1970-06-04

Family

ID=25756520

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6917970A NL6917970A (xx) 1968-12-02 1969-11-28

Country Status (5)

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

Also Published As

Publication number Publication date
CH496539A (de) 1970-09-30
FR2025018A1 (fr) 1970-09-04
ES374108A1 (es) 1971-12-16
BE741605A (xx) 1970-04-16

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