IT1028281B - EXTRUDER WITH MANY SCREWS IN PARTICULAR FOR THERMOPLASTIC MATERIALS - Google Patents
EXTRUDER WITH MANY SCREWS IN PARTICULAR FOR THERMOPLASTIC MATERIALSInfo
- Publication number
- IT1028281B IT1028281B IT19152/75A IT1915275A IT1028281B IT 1028281 B IT1028281 B IT 1028281B IT 19152/75 A IT19152/75 A IT 19152/75A IT 1915275 A IT1915275 A IT 1915275A IT 1028281 B IT1028281 B IT 1028281B
- Authority
- IT
- Italy
- Prior art keywords
- extruder
- thermoplastic materials
- many screws
- screws
- many
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/484—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws with two shafts provided with screws, e.g. one screw being shorter than the other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
- B29B7/489—Screws
-
- 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
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/41—Intermeshing counter-rotating screws
-
- 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
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/42—Non-identical or non-mirrored screws
-
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH46474A CH577885A5 (en) | 1974-01-14 | 1974-01-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1028281B true IT1028281B (en) | 1979-01-30 |
Family
ID=4187608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT19152/75A IT1028281B (en) | 1974-01-14 | 1975-01-10 | EXTRUDER WITH MANY SCREWS IN PARTICULAR FOR THERMOPLASTIC MATERIALS |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS50102655A (en) |
BE (1) | BE824367A (en) |
CH (1) | CH577885A5 (en) |
DE (1) | DE2500102A1 (en) |
FR (1) | FR2257409A1 (en) |
IT (1) | IT1028281B (en) |
NL (1) | NL7416188A (en) |
SE (1) | SE7500320L (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5358965U (en) * | 1976-10-21 | 1978-05-19 | ||
JPS5999725U (en) * | 1982-12-24 | 1984-07-05 | 株式会社日本製鋼所 | twin screw extruder |
EP0265377A3 (en) * | 1986-10-23 | 1989-05-03 | Charles Maillefer | Multiple screw extruder |
JP4149283B2 (en) * | 2003-02-07 | 2008-09-10 | 住友ゴム工業株式会社 | Twin-screw kneading extruder |
JP2020521432A (en) | 2017-06-01 | 2020-07-27 | ウェンガー マニュファクチュアリング アイエヌシー. | High specific mechanical energy extrusion screw assembly |
-
1974
- 1974-01-14 CH CH46474A patent/CH577885A5/xx not_active IP Right Cessation
- 1974-12-12 NL NL7416188A patent/NL7416188A/en unknown
- 1974-12-19 FR FR7441995A patent/FR2257409A1/en active Granted
-
1975
- 1975-01-03 DE DE19752500102 patent/DE2500102A1/en active Pending
- 1975-01-10 IT IT19152/75A patent/IT1028281B/en active
- 1975-01-13 SE SE7500320A patent/SE7500320L/xx not_active Application Discontinuation
- 1975-01-14 JP JP50006970A patent/JPS50102655A/ja active Pending
- 1975-01-14 BE BE152363A patent/BE824367A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR2257409A1 (en) | 1975-08-08 |
FR2257409B1 (en) | 1976-12-31 |
DE2500102A1 (en) | 1975-07-31 |
BE824367A (en) | 1975-07-14 |
JPS50102655A (en) | 1975-08-14 |
CH577885A5 (en) | 1976-07-30 |
NL7416188A (en) | 1975-07-16 |
SE7500320L (en) | 1975-07-15 |
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