JPS5437168A - Controlling method of film thickness of film forming machine for resin - Google Patents
Controlling method of film thickness of film forming machine for resinInfo
- Publication number
- JPS5437168A JPS5437168A JP10317177A JP10317177A JPS5437168A JP S5437168 A JPS5437168 A JP S5437168A JP 10317177 A JP10317177 A JP 10317177A JP 10317177 A JP10317177 A JP 10317177A JP S5437168 A JPS5437168 A JP S5437168A
- Authority
- JP
- Japan
- Prior art keywords
- film thickness
- resin
- forming machine
- film
- controlling method
- 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.)
- Pending
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
- B29C2948/92504—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
- B29C2948/9259—Angular velocity
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To obtain a uniform thickness film stably, by controlling a pressure of a molten resin so that change in the film thickness in a short period is regulated, and by measuring and controlling the film thickness so that the change in the film thickness in a long interval is regulated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10317177A JPS5437168A (en) | 1977-08-30 | 1977-08-30 | Controlling method of film thickness of film forming machine for resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10317177A JPS5437168A (en) | 1977-08-30 | 1977-08-30 | Controlling method of film thickness of film forming machine for resin |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5437168A true JPS5437168A (en) | 1979-03-19 |
Family
ID=14347050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10317177A Pending JPS5437168A (en) | 1977-08-30 | 1977-08-30 | Controlling method of film thickness of film forming machine for resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5437168A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5642628A (en) * | 1979-09-14 | 1981-04-20 | Hitachi Ltd | Control device for plastic sheet extruder |
JP2012046734A (en) * | 2010-07-30 | 2012-03-08 | Fujifilm Corp | Method for producing polyester sheet, polyester film and method for producing the polyester film |
-
1977
- 1977-08-30 JP JP10317177A patent/JPS5437168A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5642628A (en) * | 1979-09-14 | 1981-04-20 | Hitachi Ltd | Control device for plastic sheet extruder |
JPS5736847B2 (en) * | 1979-09-14 | 1982-08-06 | ||
JP2012046734A (en) * | 2010-07-30 | 2012-03-08 | Fujifilm Corp | Method for producing polyester sheet, polyester film and method for producing the polyester film |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5437168A (en) | Controlling method of film thickness of film forming machine for resin | |
JPS5373067A (en) | Polisher | |
JPS532899A (en) | Process for producing composite material wing | |
JPS5219867A (en) | Method of controlling contact press ure on touch roller of sheet take- up machine and apparatus thereof | |
JPS521590A (en) | Surface finishing method for small pieces of thin plate | |
JPS5234757A (en) | Character plate and process for the fabrication thereof | |
JPS5387245A (en) | Optical fiber parent material production apparatus | |
JPS5438106A (en) | Mirror making method | |
JPS531365A (en) | Method and apparatus for controlling foam content in aqueous slurry | |
JPS5237282A (en) | Method and apparatus for machining cam surfaces | |
JPS52122134A (en) | Production of optical fibers | |
JPS53123913A (en) | Magnetic head and production of the same | |
JPS5312598A (en) | Speed control system for use in electrical discharge machining apparatus | |
JPS5333489A (en) | Flying shear control device | |
JPS5222989A (en) | Method of determining characteristics of extruders | |
JPS5210339A (en) | Method for coating a wire | |
JPS53115694A (en) | Method for producing beta-alumina film | |
JPS5276278A (en) | Apparatus for preparing long and narrow crystal | |
JPS51121487A (en) | Apparatus for producing a thin film | |
JPS57162954A (en) | Laminated core | |
JPS52114881A (en) | Looper controlling method and appratus | |
JPS53120686A (en) | Forming method for thin film by gas phase reaction | |
JPS53108806A (en) | Preparation of amorphous metallic tape | |
JPS539229A (en) | Method of making unidirectional electromagnetic steel plate by applying continuous casting process | |
JPS53106009A (en) | Magnetic head |