JPS5542802A - Die for inflation film of thermoplastic resin - Google Patents
Die for inflation film of thermoplastic resinInfo
- Publication number
- JPS5542802A JPS5542802A JP11507478A JP11507478A JPS5542802A JP S5542802 A JPS5542802 A JP S5542802A JP 11507478 A JP11507478 A JP 11507478A JP 11507478 A JP11507478 A JP 11507478A JP S5542802 A JPS5542802 A JP S5542802A
- Authority
- JP
- Japan
- Prior art keywords
- coolant
- passage
- mandrel
- inflation film
- thru
- 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
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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the 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
- B29C48/09—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
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0072—Roughness, e.g. anti-slip
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To obtain a die capable of giving uniform coarseness on the surface of film by establishing heat-insulating layer between exit and inlet ports of coolant and spiral mandrel and thereby improving the heat insulating efficiency. CONSTITUTION:Inflation film is available by flowing out the thermoplastic synthetic resin from the passage 18. At this procedure, mandrel A is locally cooled by flowing coolant from heat insulating passage 16, leading it to the coolant gathering passage 13, then to the coolant sump 14 through distribution hole 11, and flow it thru the spiral passage 15 for cooling purpose. After cooling the mandrel, the coolant is led to the other coolant sump 14, and is discharged from exhaust passage 17 thru the gathering passage 13. By this constitution, only the mandrel A is locally cooled by giving efficiently uniform temp. to the entire body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11507478A JPS5542802A (en) | 1978-09-21 | 1978-09-21 | Die for inflation film of thermoplastic resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11507478A JPS5542802A (en) | 1978-09-21 | 1978-09-21 | Die for inflation film of thermoplastic resin |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5542802A true JPS5542802A (en) | 1980-03-26 |
JPS6125531B2 JPS6125531B2 (en) | 1986-06-16 |
Family
ID=14653523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11507478A Granted JPS5542802A (en) | 1978-09-21 | 1978-09-21 | Die for inflation film of thermoplastic resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5542802A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60220726A (en) * | 1984-04-18 | 1985-11-05 | Kawasumi Lab Inc | Method and apparatus for processing internal surface of synthetic resin tube |
EP0210108A2 (en) * | 1985-07-19 | 1987-01-28 | TERUMO KABUSHIKI KAISHA trading as TERUMO CORPORATION | Method for production of cylindrical thermoplastic resin film having rough inner surface and apparatus thereof |
JPH01202237A (en) * | 1988-02-08 | 1989-08-15 | Nakazato:Kk | Preservation method of frozen food dough requiring fermentation |
FR2637533A1 (en) * | 1988-10-10 | 1990-04-13 | Solvay | PROCESS FOR PRODUCING, BY BLOWN EXTRUSION, A RESIN SHEATH BASED ON VINYL CHLORIDE HAVING AT LEAST ONE SIDE HAVING A MATTE APPEARANCE |
US5248472A (en) * | 1990-03-09 | 1993-09-28 | Terumo Kabushiki Kaisha | Method of and apparatus for manufacturing tubular thermoplastic resin film having a rough inner surface |
-
1978
- 1978-09-21 JP JP11507478A patent/JPS5542802A/en active Granted
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60220726A (en) * | 1984-04-18 | 1985-11-05 | Kawasumi Lab Inc | Method and apparatus for processing internal surface of synthetic resin tube |
EP0210108A2 (en) * | 1985-07-19 | 1987-01-28 | TERUMO KABUSHIKI KAISHA trading as TERUMO CORPORATION | Method for production of cylindrical thermoplastic resin film having rough inner surface and apparatus thereof |
EP0210108A3 (en) * | 1985-07-19 | 1988-04-06 | Terumo Kabushiki Kaisha Trading As Terumo Corporation | Method for production of cylindrical thermoplastic resin film having rough inner surface and apparatus thereof |
JPH01202237A (en) * | 1988-02-08 | 1989-08-15 | Nakazato:Kk | Preservation method of frozen food dough requiring fermentation |
FR2637533A1 (en) * | 1988-10-10 | 1990-04-13 | Solvay | PROCESS FOR PRODUCING, BY BLOWN EXTRUSION, A RESIN SHEATH BASED ON VINYL CHLORIDE HAVING AT LEAST ONE SIDE HAVING A MATTE APPEARANCE |
EP0364021A1 (en) * | 1988-10-10 | 1990-04-18 | Solvay | Process for the extrusion blow-moulding production of a PVC-based tubular film having at least one mat surface |
US4997616A (en) * | 1988-10-10 | 1991-03-05 | Solvay & Cie | Process for producing, by blown film extrusion, a sleeve of vinyl chloride-based resin, at least one face of which is matte in appearance |
US5248472A (en) * | 1990-03-09 | 1993-09-28 | Terumo Kabushiki Kaisha | Method of and apparatus for manufacturing tubular thermoplastic resin film having a rough inner surface |
Also Published As
Publication number | Publication date |
---|---|
JPS6125531B2 (en) | 1986-06-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4193443A (en) | Heat exchanger for cooling system compressed air dehumidifiers | |
JPS57127790A (en) | Refrigerating device for closed box | |
DE3784268D1 (en) | INSULATED EXTRUDER NOZZLE. | |
JPS5542802A (en) | Die for inflation film of thermoplastic resin | |
JPS56124650A (en) | Piston for internal combustion engine | |
GB1422624A (en) | Extrusion blow-head for tubular film | |
JPS55139942A (en) | Cylinder of forced high speed water cooled engine | |
JPS5787349A (en) | Fluid feeding and discharging device in tire vulcanizer | |
JPS57120623A (en) | Cooling method | |
JPS55104507A (en) | Cooling blade for high-temperature turbine | |
JPS5565858A (en) | Heat exchanger | |
ES8305911A1 (en) | Method and means for removing heat from a heat storage layer of water | |
JPS57123016A (en) | Apparatus for producing resin pellet | |
JPH08216157A (en) | Apparatus for heating and cooling mold | |
JPS6422322A (en) | Air cooler | |
EP0078665A1 (en) | Cooling moulds used in forming glassware containers | |
JPS57199633A (en) | Method of heating in foam molding | |
SU1165856A2 (en) | Vortex pipe | |
JPS5747160A (en) | Solar heat collector | |
JPS57157010A (en) | Heat exchanger for cooling water of engine | |
SU985607A1 (en) | Device for indirect-evaporative cooling of air | |
JPS55117005A (en) | Gas-turbine blade | |
JPS57164930A (en) | Cooling method for metallic strip and cooling roll used for this method | |
SU979825A1 (en) | Rotor film heat exchanger | |
JPS5651849A (en) | Cooling device for integrated circuit |