FR2411079A1 - IMPROVEMENTS TO SCREWS FOR EXTRUDING MACHINES - Google Patents
IMPROVEMENTS TO SCREWS FOR EXTRUDING MACHINESInfo
- Publication number
- FR2411079A1 FR2411079A1 FR7832046A FR7832046A FR2411079A1 FR 2411079 A1 FR2411079 A1 FR 2411079A1 FR 7832046 A FR7832046 A FR 7832046A FR 7832046 A FR7832046 A FR 7832046A FR 2411079 A1 FR2411079 A1 FR 2411079A1
- Authority
- FR
- France
- Prior art keywords
- screws
- extruding machines
- fins
- screw
- extruders
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/64—Screws with two or more threads
- B29C48/65—Screws with two or more threads neighbouring threads or channels having different configurations, e.g. one thread being lower than its neighbouring thread
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/62—Screws characterised by the shape of the thread channel, e.g. U-shaped
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
VIS D'EXTRUDEUSE. SUR UNE ZONE DE SA LONGUEUR ELLE COMPORTE DANS LES CANAUX DELIMITES PAR SES FILETS 8 DES AILETTES 2 PLUS INCLINEES QUE CEUX-CI ET DES RAMPES 4 QUI S'ARRETENT A UNE FAIBLE DISTANCE DE LA PAROI DU FUT DANS LEQUEL TOURNE LA VIS, DE MANIERE A ECRASER LA MATIERE QUE LEUR RENVOIENT LES AILETTES. APPLICATION AUX EXTRUDEUSES POUR CAOUTCHOUC ET MATIERES ANALOGUES.EXTRUDER SCREW. ON AN AREA OF ITS LENGTH IT CONTAINS IN THE CHANNELS DELIMITED BY ITS THREADS 8 FINS 2 MORE INCLINED THAN THOSE AND RAMPS 4 WHICH STOP A SHORT DISTANCE FROM THE WALL OF THE SHAFT IN WHICH THE SCREW TURNS, IN A MANNER TO CRUSH THE MATERIAL RETURNED TO THEM BY THE FINS. APPLICATION TO EXTRUDERS FOR RUBBER AND SIMILAR MATERIALS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB51234/77A GB1591730A (en) | 1977-12-08 | 1977-12-08 | Screws for extruding machines |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2411079A1 true FR2411079A1 (en) | 1979-07-06 |
FR2411079B3 FR2411079B3 (en) | 1981-09-11 |
Family
ID=10459176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7832046A Granted FR2411079A1 (en) | 1977-12-08 | 1978-11-06 | IMPROVEMENTS TO SCREWS FOR EXTRUDING MACHINES |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE7832143U1 (en) |
FR (1) | FR2411079A1 (en) |
GB (1) | GB1591730A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0644034A1 (en) * | 1993-09-16 | 1995-03-22 | General Electric Company | Single screw extruder capable of generating chaotic mixing |
WO1995030530A1 (en) * | 1994-05-10 | 1995-11-16 | Pohang Iron & Steel Co., Ltd. | Chaos screw for single screw extruder |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2137893A (en) * | 1983-04-13 | 1984-10-17 | Nat Res Dev | Improvements in or relating to conveying screws |
DE3627428A1 (en) * | 1986-08-13 | 1988-02-18 | Gl Upravlenie Str V Primorskom | Continuous rotary mixer-disperser |
-
1977
- 1977-12-08 GB GB51234/77A patent/GB1591730A/en not_active Expired
-
1978
- 1978-10-28 DE DE19787832143U patent/DE7832143U1/en not_active Expired
- 1978-11-06 FR FR7832046A patent/FR2411079A1/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0644034A1 (en) * | 1993-09-16 | 1995-03-22 | General Electric Company | Single screw extruder capable of generating chaotic mixing |
US5551777A (en) * | 1993-09-16 | 1996-09-03 | General Electric Company | Single screw extruder capable of generating chaotic mixing |
WO1995030530A1 (en) * | 1994-05-10 | 1995-11-16 | Pohang Iron & Steel Co., Ltd. | Chaos screw for single screw extruder |
Also Published As
Publication number | Publication date |
---|---|
FR2411079B3 (en) | 1981-09-11 |
GB1591730A (en) | 1981-06-24 |
DE7832143U1 (en) | 1979-02-15 |
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