FR2356495B3 - - Google Patents

Info

Publication number
FR2356495B3
FR2356495B3 FR7720383A FR7720383A FR2356495B3 FR 2356495 B3 FR2356495 B3 FR 2356495B3 FR 7720383 A FR7720383 A FR 7720383A FR 7720383 A FR7720383 A FR 7720383A FR 2356495 B3 FR2356495 B3 FR 2356495B3
Authority
FR
France
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.)
Expired
Application number
FR7720383A
Other languages
French (fr)
Other versions
FR2356495A1 (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.)
Mannesmann Demag AG
Original Assignee
Demag 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
Application filed by Demag AG filed Critical Demag AG
Publication of FR2356495A1 publication Critical patent/FR2356495A1/en
Application granted granted Critical
Publication of FR2356495B3 publication Critical patent/FR2356495B3/fr
Granted 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
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
    • 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
    • B29C48/27—Cleaning; Purging; Avoiding contamination
    • B29C48/272—Cleaning; Purging; Avoiding contamination of dies
    • 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
    • B29C48/88—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
FR7720383A 1976-07-02 1977-07-01 BLOWING HEAD FOR THE MANUFACTURE OF SHEETS IN TUBES BY THE EXTRUSION PROCESS Granted FR2356495A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762629789 DE2629789A1 (en) 1976-07-02 1976-07-02 BLOW HEAD FOR THE PRODUCTION OF TUBE FILMS IN THE EXTRUSION PROCESS

Publications (2)

Publication Number Publication Date
FR2356495A1 FR2356495A1 (en) 1978-01-27
FR2356495B3 true FR2356495B3 (en) 1980-05-09

Family

ID=5982068

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7720383A Granted FR2356495A1 (en) 1976-07-02 1977-07-01 BLOWING HEAD FOR THE MANUFACTURE OF SHEETS IN TUBES BY THE EXTRUSION PROCESS

Country Status (3)

Country Link
DE (1) DE2629789A1 (en)
FR (1) FR2356495A1 (en)
GB (1) GB1528728A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9102433U1 (en) * 1991-03-01 1991-05-23 Reifenhaeuser Gmbh & Co Maschinenfabrik, 5210 Troisdorf, De
DE102013108045B9 (en) 2013-07-26 2017-09-21 Windmöller & Hölscher Kg Blown film extrusion apparatus, temperature control for a blown film extrusion apparatus and method for temperature control of a blown film extrusion apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH507085A (en) * 1969-05-09 1971-05-15 Multifol Patentverwertungs Ag Process for producing a partially stretched plastic film material, device for carrying out the process and a product produced by this process
DE2027992A1 (en) * 1970-06-06 1971-12-16 Schlayer Polydress Gmbh Plastic tubular film - with roughened inner surfaces - preventing the sack sides from sticking together
DE2306834C2 (en) * 1973-02-12 1982-07-08 Windmöller & Hölscher, 4540 Lengerich Film die head for the production of tubular films

Also Published As

Publication number Publication date
GB1528728A (en) 1978-10-18
FR2356495A1 (en) 1978-01-27
DE2629789A1 (en) 1978-01-05

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Legal Events

Date Code Title Description
CD Change of name or company name
TP Transmission of property