IT1021345B - Vitone di miscelazione e plasti ficazione per l estrusione di ma terie plastiche - Google Patents
Vitone di miscelazione e plasti ficazione per l estrusione di ma terie plasticheInfo
- Publication number
- IT1021345B IT1021345B IT27251/74A IT2725174A IT1021345B IT 1021345 B IT1021345 B IT 1021345B IT 27251/74 A IT27251/74 A IT 27251/74A IT 2725174 A IT2725174 A IT 2725174A IT 1021345 B IT1021345 B IT 1021345B
- Authority
- IT
- Italy
- Prior art keywords
- extrusion
- mixing
- plastic materials
- plastication screw
- plastication
- Prior art date
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
- B29C48/62—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)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/397,674 US3998438A (en) | 1973-09-17 | 1973-09-17 | Extruder plasticizing and mixing screw |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1021345B true IT1021345B (it) | 1978-01-30 |
Family
ID=23572176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT27251/74A IT1021345B (it) | 1973-09-17 | 1974-09-13 | Vitone di miscelazione e plasti ficazione per l estrusione di ma terie plastiche |
Country Status (6)
Country | Link |
---|---|
US (1) | US3998438A (it) |
JP (1) | JPS5056450A (it) |
CA (1) | CA1030708A (it) |
DE (1) | DE2443811A1 (it) |
FR (1) | FR2243809A1 (it) |
IT (1) | IT1021345B (it) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4154536A (en) * | 1977-07-25 | 1979-05-15 | Beloit Corporation | High efficiency injection molding screw |
DE3404461C2 (de) * | 1984-02-08 | 1987-01-29 | Robert F. Hamilton Tex. Dray | Vorrichtung zum Schmelzen und Fördern von plastifiziertem Material mit einer Extrudierschnecke |
US4896969A (en) * | 1985-05-02 | 1990-01-30 | Dray Robert F | Method and apparatus for melting and conveying plasticated material |
JPS62502677A (ja) * | 1985-05-02 | 1987-10-15 | ドレイ、ロバ−ト・エフ | 可塑化材料を融解し輸送するための方法と装置 |
US4840492A (en) * | 1988-04-25 | 1989-06-20 | Kensaku Nakamura | Rotational screw for mixing |
US5071256A (en) * | 1990-07-09 | 1991-12-10 | Spirex Corporation | Extruder injection apparatus and method |
US5342125A (en) * | 1992-05-14 | 1994-08-30 | Great Lakes Feedscrews, Inc. | Feedscrew for injection molding and extrusion |
DE50204967D1 (de) * | 2001-09-11 | 2005-12-22 | Buehler Ag | Verfahren zur durchfuhrung kontinuierlicher misch- und aufbereitungsprozesse mittels spezieller verhältnisse von mantelfläche und freiem volumen bzw. schneckeninnen- und aussendurchmesser |
US8313051B2 (en) * | 2008-03-05 | 2012-11-20 | Sealed Air Corporation (Us) | Process and apparatus for mixing a polymer composition and composite polymers resulting therefrom |
US9011131B2 (en) * | 2010-03-11 | 2015-04-21 | Rms Equipment Llc | Lug type extruder screw |
US11285652B2 (en) * | 2020-02-17 | 2022-03-29 | Robert A. Barr | No solid bed extruder screw |
CN115418060A (zh) * | 2022-07-29 | 2022-12-02 | 浙江数合新材料有限公司 | 一种高阻燃航空用合金热塑板的制造工艺 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR956934A (it) * | 1946-12-14 | 1950-02-10 | ||
US2838794A (en) * | 1957-04-08 | 1958-06-17 | Du Pont | Extrusion apparatus |
US3023456A (en) * | 1959-08-03 | 1962-03-06 | Dow Chemical Co | Extruder apparatus |
US3197814A (en) * | 1962-07-09 | 1965-08-03 | Du Pont | Screw construction for extrusion apparatus and the like |
US3518721A (en) * | 1966-03-29 | 1970-07-07 | Vasily Alexandrovich Rukas | Screw extruder for reprocessing thermoplastics |
US3486192A (en) * | 1967-03-24 | 1969-12-30 | Union Carbide Corp | Apparatus for extrusion of thermoplastics |
US3475788A (en) * | 1968-03-28 | 1969-11-04 | Nrm Corp | Extruder |
DE1779055B1 (de) * | 1968-07-02 | 1972-05-04 | Barmag Barmer Maschf | Schneckenstrangpresse fuer hochviskose thermoplastische stoffe |
US3671141A (en) * | 1971-01-08 | 1972-06-20 | Midland Ross Corp | Extruder comprising a screw having pegs |
US3762693A (en) * | 1971-04-13 | 1973-10-02 | Western Electric Co | Methods of and apparatus for advancing and working thermoplastic materials |
US3751015A (en) * | 1971-06-22 | 1973-08-07 | Barmag Barmer Maschf | Screw extruder with radially projecting pins |
-
1973
- 1973-09-17 US US05/397,674 patent/US3998438A/en not_active Expired - Lifetime
-
1974
- 1974-06-10 CA CA202,004A patent/CA1030708A/en not_active Expired
- 1974-08-12 FR FR7427853A patent/FR2243809A1/fr not_active Withdrawn
- 1974-09-13 IT IT27251/74A patent/IT1021345B/it active
- 1974-09-13 DE DE19742443811 patent/DE2443811A1/de active Pending
- 1974-09-17 JP JP49107022A patent/JPS5056450A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2243809A1 (it) | 1975-04-11 |
DE2443811A1 (de) | 1975-03-20 |
USB397674I5 (it) | 1976-03-16 |
JPS5056450A (it) | 1975-05-17 |
US3998438A (en) | 1976-12-21 |
CA1030708A (en) | 1978-05-09 |
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