JPS56120317A - Control of thickness of film - Google Patents

Control of thickness of film

Info

Publication number
JPS56120317A
JPS56120317A JP2445880A JP2445880A JPS56120317A JP S56120317 A JPS56120317 A JP S56120317A JP 2445880 A JP2445880 A JP 2445880A JP 2445880 A JP2445880 A JP 2445880A JP S56120317 A JPS56120317 A JP S56120317A
Authority
JP
Japan
Prior art keywords
thickness
film
stretched
laterally
longitudinally
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.)
Granted
Application number
JP2445880A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6359855B2 (enrdf_load_stackoverflow
Inventor
Nobuhiko Kogo
Yoshimitsu Tsutsui
Hiroharu Kato
Toshio Kishigami
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP2445880A priority Critical patent/JPS56120317A/ja
Priority to DE8181300758T priority patent/DE3176317D1/de
Priority to EP81300758A priority patent/EP0035356B1/en
Priority to US06/238,358 priority patent/US4409160A/en
Publication of JPS56120317A publication Critical patent/JPS56120317A/ja
Publication of JPS6359855B2 publication Critical patent/JPS6359855B2/ja
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
    • B29C48/92—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
    • B29C2948/92114—Dimensions
    • B29C2948/92152—Thickness
    • 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
    • B29C2948/92609—Dimensions
    • B29C2948/92647—Thickness
    • 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
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
JP2445880A 1980-02-28 1980-02-28 Control of thickness of film Granted JPS56120317A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2445880A JPS56120317A (en) 1980-02-28 1980-02-28 Control of thickness of film
DE8181300758T DE3176317D1 (en) 1980-02-28 1981-02-24 Method and apparatus for controlling the thickness of a film product
EP81300758A EP0035356B1 (en) 1980-02-28 1981-02-24 Method and apparatus for controlling the thickness of a film product
US06/238,358 US4409160A (en) 1980-02-28 1981-02-25 Method for controlling the thickness of a film product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2445880A JPS56120317A (en) 1980-02-28 1980-02-28 Control of thickness of film

Publications (2)

Publication Number Publication Date
JPS56120317A true JPS56120317A (en) 1981-09-21
JPS6359855B2 JPS6359855B2 (enrdf_load_stackoverflow) 1988-11-21

Family

ID=12138715

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2445880A Granted JPS56120317A (en) 1980-02-28 1980-02-28 Control of thickness of film

Country Status (1)

Country Link
JP (1) JPS56120317A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002172679A (ja) * 2000-12-07 2002-06-18 Toray Ind Inc シートの製造方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0281190U (enrdf_load_stackoverflow) * 1988-12-09 1990-06-22

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5236165A (en) * 1975-09-18 1977-03-19 Mitsubishi Plastics Ind Method of adjusting thickness of thermoplastic resin film
JPS5236154A (en) * 1975-09-18 1977-03-19 Mitsubishi Plastics Ind Method of controlling thermoplastic resin film thickness
JPS5271573A (en) * 1975-12-12 1977-06-15 Mitsubishi Plastics Ind Method of adjusting margin thickness of thermoplastic resin elongation film
JPS5272772A (en) * 1975-12-15 1977-06-17 Mitsubishi Plastics Ind Method of adjusting margin thickness of thermoplastic resin elongation film

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5236165A (en) * 1975-09-18 1977-03-19 Mitsubishi Plastics Ind Method of adjusting thickness of thermoplastic resin film
JPS5236154A (en) * 1975-09-18 1977-03-19 Mitsubishi Plastics Ind Method of controlling thermoplastic resin film thickness
JPS5271573A (en) * 1975-12-12 1977-06-15 Mitsubishi Plastics Ind Method of adjusting margin thickness of thermoplastic resin elongation film
JPS5272772A (en) * 1975-12-15 1977-06-17 Mitsubishi Plastics Ind Method of adjusting margin thickness of thermoplastic resin elongation film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002172679A (ja) * 2000-12-07 2002-06-18 Toray Ind Inc シートの製造方法

Also Published As

Publication number Publication date
JPS6359855B2 (enrdf_load_stackoverflow) 1988-11-21

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