GB628467A - Improvements in or relating to moulding plastic materials by extrusion - Google Patents
Improvements in or relating to moulding plastic materials by extrusionInfo
- Publication number
- GB628467A GB628467A GB13328/46A GB1332846A GB628467A GB 628467 A GB628467 A GB 628467A GB 13328/46 A GB13328/46 A GB 13328/46A GB 1332846 A GB1332846 A GB 1332846A GB 628467 A GB628467 A GB 628467A
- Authority
- GB
- United Kingdom
- Prior art keywords
- extrusion
- relating
- spiral
- plastic materials
- moulding plastic
- 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.)
- Expired
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
- B29C48/03—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
-
- 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
- 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
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Sheets of thermoplastic material are formed by extrusion through a non-continuous slot which is contracted within the relatively small area of the extrusion plate by being formed into a spiral wavy &c. form. The spiral or wavy sheet thus formed is then flattened. The extrusion plate may be electrically heated. The turns of the spiral &c. may be prevented from sticking and the sheet is cooled by a fluid stream, air stream or talc powder. Specification 634,071 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT628467X | 1943-04-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB628467A true GB628467A (en) | 1949-08-30 |
Family
ID=11293617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13328/46A Expired GB628467A (en) | 1943-04-03 | 1946-05-02 | Improvements in or relating to moulding plastic materials by extrusion |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB628467A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3078509A (en) * | 1957-12-21 | 1963-02-26 | Canadian Celanese Ltd | Extrusion jet |
DE1286296B (en) * | 1964-10-19 | 1969-01-02 | Fischer Rainer | Method and device for the simultaneous loading of at least two injection heads in plastics processing machines from an extrusion press |
GB2177044A (en) * | 1985-05-29 | 1987-01-14 | Rex Johansen | Method and apparatus for extrusion |
WO1999041061A1 (en) * | 1998-02-17 | 1999-08-19 | Newcourt, Inc. | Continuous process for forming structure suitable for use as a core member |
US6506276B1 (en) | 2000-06-12 | 2003-01-14 | Newcourt, Inc. | Method for forming a cellular core member |
-
1946
- 1946-05-02 GB GB13328/46A patent/GB628467A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3078509A (en) * | 1957-12-21 | 1963-02-26 | Canadian Celanese Ltd | Extrusion jet |
DE1286296B (en) * | 1964-10-19 | 1969-01-02 | Fischer Rainer | Method and device for the simultaneous loading of at least two injection heads in plastics processing machines from an extrusion press |
GB2177044A (en) * | 1985-05-29 | 1987-01-14 | Rex Johansen | Method and apparatus for extrusion |
GB2177044B (en) * | 1985-05-29 | 1989-10-11 | Rex Johansen | Method and apparatus for extrusion |
WO1999041061A1 (en) * | 1998-02-17 | 1999-08-19 | Newcourt, Inc. | Continuous process for forming structure suitable for use as a core member |
US6119344A (en) * | 1998-02-17 | 2000-09-19 | Newcourt, Inc. | Continuous process for forming structure suitable for use of a core member |
US6125540A (en) * | 1998-02-17 | 2000-10-03 | Newcourt, Inc. | Continuous process for forming structure suitable for use as a core member |
US6506276B1 (en) | 2000-06-12 | 2003-01-14 | Newcourt, Inc. | Method for forming a cellular core member |
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