DE2831212C2 - - Google Patents

Info

Publication number
DE2831212C2
DE2831212C2 DE2831212A DE2831212A DE2831212C2 DE 2831212 C2 DE2831212 C2 DE 2831212C2 DE 2831212 A DE2831212 A DE 2831212A DE 2831212 A DE2831212 A DE 2831212A DE 2831212 C2 DE2831212 C2 DE 2831212C2
Authority
DE
Germany
Prior art keywords
film
cooling
gas
control
line
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.)
Expired
Application number
DE2831212A
Other languages
German (de)
English (en)
Other versions
DE2831212A1 (de
Inventor
Carl Bradford Newark Ohio Us Havens
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Priority to DE19782831212 priority Critical patent/DE2831212A1/de
Publication of DE2831212A1 publication Critical patent/DE2831212A1/de
Application granted granted Critical
Publication of DE2831212C2 publication Critical patent/DE2831212C2/de
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
    • B29C48/885—External treatment, e.g. by using air rings for cooling tubular films
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/89—Internal treatment, e.g. by applying an internal cooling fluid stream
    • 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
    • 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
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92209—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92314—Particular value claimed
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92428—Calibration, after-treatment, or cooling zone
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92514—Pressure
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/926—Flow or feed rate
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9279—Errors or malfunctioning, e.g. for quality control
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92923—Calibration, after-treatment or cooling zone

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
DE19782831212 1978-07-15 1978-07-15 Verfahren zur herstellung eines blasfilms Granted DE2831212A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782831212 DE2831212A1 (de) 1978-07-15 1978-07-15 Verfahren zur herstellung eines blasfilms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782831212 DE2831212A1 (de) 1978-07-15 1978-07-15 Verfahren zur herstellung eines blasfilms

Publications (2)

Publication Number Publication Date
DE2831212A1 DE2831212A1 (de) 1980-01-24
DE2831212C2 true DE2831212C2 (enrdf_load_stackoverflow) 1987-05-21

Family

ID=6044513

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782831212 Granted DE2831212A1 (de) 1978-07-15 1978-07-15 Verfahren zur herstellung eines blasfilms

Country Status (1)

Country Link
DE (1) DE2831212A1 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1616687A1 (de) * 2004-07-14 2006-01-18 Kdesign GmbH Verfahren und Vorrichtung zur Produktionsüberwachung bei der Herstellung von Schlauchfolien
DE102005033205C5 (de) 2005-07-13 2017-10-12 Windmöller & Hölscher Kg Verfahren zur auftragsbezogenen Änderung des Folienschlauchformats von einem Ausgangsformat zu einem Endformat sowie Blasfolienanlage, an der diese Änderung durchführbar ist
DE102016119869A1 (de) * 2016-10-18 2018-04-19 Reifenhäuser GmbH & Co. KG Maschinenfabrik Verfahren und Anlage zur Herstellung einer Kunststofffolie

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU42011A1 (enrdf_load_stackoverflow) * 1961-07-17 1963-01-07
DE1704521C2 (de) * 1967-02-10 1982-04-22 Bemberg Folien Gmbh, 5600 Wuppertal Vorrichtung zum biaxialen Verstrecken eines Schlauches aus thermoplastischem Kunststoff
FR1592180A (enrdf_load_stackoverflow) * 1968-10-22 1970-05-11

Also Published As

Publication number Publication date
DE2831212A1 (de) 1980-01-24

Similar Documents

Publication Publication Date Title
DE69201583T2 (de) Luftring und Verfahren zum Regeln der Blasfolien-Dicke.
DE3729449A1 (de) Verfahren und vorrichtung zur herstellung eines stranggepressten, verstreckten, nahtlosen schlauches
DE3815415C2 (enrdf_load_stackoverflow)
DE1704691A1 (de) Verfahren zur Herstellung von orientierten Kunststoffolien sowie deren Verwendung
DE1704860A1 (de) Verfahren und Vorrichtung zum Herstellen von schlauchfoermigen Filmen
WO2016192698A1 (de) Anlage zum herstellen einer folienbahn und verfahren zum betreiben einer solchen anlage
DE102016109087A1 (de) Verfahren zur Regelung und Steuerung von Rohrextrusionsanlagen
DE2522357A1 (de) Blasextruder
DE3217039C2 (de) Verfahren zum Herstellen einer zweiachsig orientierten Folie und Vorrichtung zur Durchführung des Verfahrens
DE2327761C3 (de) Verfahren und Vorrichtung zum Herstellen einer monoaxial orientierten Folienbahn aus thermoplastischem Kunststoff mit schräg zu ihrer Längsrichtung verlaufender Orientierung
EP0516992B1 (de) Verfahren zur Bestimmung und/oder Regelung des Orientierungsgrades von in Blasfolienanlagen hergestellten Schauchfolien
EP3658349B1 (de) Verfahren und vorrichtung zur fertigungskontrolle eines extrudierten kunststoffprodukts sowie extrusionsanlage zum extrudieren eines derartigen kunststoffprodukts
EP1193041A2 (de) Verfahren und Vorrichtung zur Regelung des Foliendickenprofils in Folienblasanlagen
DE2831212C2 (enrdf_load_stackoverflow)
EP0704288A1 (de) Vorrichtung zur Steuerung der Wulsthöhe bei der Herstellung von beidseitig geglätteten Folien und Platten
DE102019126219B3 (de) Verfahren zum Betreiben einer Anlage zum Herstellen einer Folienbahn und Anlage zur Durchführung dieses Verfahrens
DE3941185A1 (de) Verfahren zur regelung der foliendicke von im blasverfahren hergestellten und axial, vorzugsweise biaxial verstreckten schlauchfolien
DE102019107335A1 (de) Vorrichtung und verfahren zur herstellung einer folienbahn
EP3529035B1 (de) Verfahren und anlage zur herstellung einer kunststofffolie
EP0321936A2 (de) Folienblasanlage mit Rolle
DE4132032C3 (de) Verfahren und Vorrichtung zum gleichzeitigen kontinuierlichen Herstellen mehrerer Strangprofile
DE2363117C3 (de) Verwendung von thermoplastischen Schlauchfolien als Beschickungsgut für Kalander
EP1583649B1 (de) Verfahren und vorrichtung zur regelung der dicke extrudierter folie
DE2039216A1 (de) Verfahren zur Herstellung eines biaxial orientierten Filmes
DE69813072T2 (de) Anlage zur Herstellung von Kunststoffschlauchfolienbahnen mit biaxialer Orientierung und Inline-Stabilisierungsphase

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8172 Supplementary division/partition in:

Ref country code: DE

Ref document number: 2858327

Format of ref document f/p: P

Q171 Divided out to:

Ref country code: DE

Ref document number: 2858327

8181 Inventor (new situation)

Free format text: HAVENS, CARL BRADFORD, NEWARK, OHIO, US

AH Division in

Ref country code: DE

Ref document number: 2858327

Format of ref document f/p: P

D2 Grant after examination
8363 Opposition against the patent
8330 Complete renunciation