CH496539A - Device for the uniform supply of cooling gas to the outlet nozzle of an extruder - Google Patents

Device for the uniform supply of cooling gas to the outlet nozzle of an extruder

Info

Publication number
CH496539A
CH496539A CH1793569A CH1793569A CH496539A CH 496539 A CH496539 A CH 496539A CH 1793569 A CH1793569 A CH 1793569A CH 1793569 A CH1793569 A CH 1793569A CH 496539 A CH496539 A CH 496539A
Authority
CH
Switzerland
Prior art keywords
extruder
cooling gas
outlet nozzle
uniform supply
uniform
Prior art date
Application number
CH1793569A
Other languages
German (de)
Inventor
Walter Dipl Ing Geil
Albrecht Gerd
Augustin Guenter
Original Assignee
Barmag Barmer Maschf
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/en
Priority claimed from DE19691953113 external-priority patent/DE1953113A1/en
Application filed by Barmag Barmer Maschf filed Critical Barmag Barmer Maschf
Publication of CH496539A publication Critical patent/CH496539A/en

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)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Press Drives And Press Lines (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
CH1793569A 1968-12-02 1969-12-02 Device for the uniform supply of cooling gas to the outlet nozzle of an extruder CH496539A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19681812078 DE1812078A1 (en) 1968-12-02 1968-12-02 Cooling ring for film blowing device or the like.
DE19691953113 DE1953113A1 (en) 1969-10-22 1969-10-22 Device for the uniform supply of cooling gas to the outlet nozzle of a film blowing device

Publications (1)

Publication Number Publication Date
CH496539A true CH496539A (en) 1970-09-30

Family

ID=25756520

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1793569A CH496539A (en) 1968-12-02 1969-12-02 Device for the uniform supply of cooling gas to the outlet nozzle of an extruder

Country Status (5)

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

Also Published As

Publication number Publication date
FR2025018A1 (en) 1970-09-04
BE741605A (en) 1970-04-16
ES374108A1 (en) 1971-12-16
NL6917970A (en) 1970-06-04

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Legal Events

Date Code Title Description
PL Patent ceased