GB2011306A - Feeding Foamable Polyethylene to Moulds - Google Patents
Feeding Foamable Polyethylene to MouldsInfo
- Publication number
- GB2011306A GB2011306A GB7841009A GB7841009A GB2011306A GB 2011306 A GB2011306 A GB 2011306A GB 7841009 A GB7841009 A GB 7841009A GB 7841009 A GB7841009 A GB 7841009A GB 2011306 A GB2011306 A GB 2011306A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould
- moulds
- particles
- foamable polyethylene
- fed
- 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.)
- Withdrawn
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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
- B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
- B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3415—Heating or cooling
- B29C44/3426—Heating by introducing steam in the mould
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Foamable polythene particles 11 are fed from a pressurised container (10) to a mould (1,2) by pressure air 15, the pipes (17, 23, 25) through which such particles are fed to the mould being purged of excess particles on completion of the filling of such mould by introducing pressure air into pipe (25) via a valve (45). A piston (29) may be used to assist in clearing pipe (25) of beads and to provide a flush surface with the mould cavity. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772746880 DE2746880A1 (en) | 1977-10-19 | 1977-10-19 | METHOD AND DEVICE FOR FILLING FOAMABLE PLASTIC INTO THE DEVICE MACHINE |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2011306A true GB2011306A (en) | 1979-07-11 |
Family
ID=6021747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7841009A Withdrawn GB2011306A (en) | 1977-10-19 | 1978-10-18 | Feeding Foamable Polyethylene to Moulds |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2746880A1 (en) |
ES (1) | ES474314A1 (en) |
FR (1) | FR2406518A2 (en) |
GB (1) | GB2011306A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1254011A (en) * | 1984-02-22 | 1989-05-16 | Japan Styrene Paper Corporation | Production method of expansion-molded article of thermoplastic resin and apparatus therefor |
DE3603108A1 (en) * | 1986-02-01 | 1987-08-06 | Hans Erlenbach | DEVICE FOR PRODUCING MOLDINGS FROM FOAMED PLASTIC |
-
1977
- 1977-10-19 DE DE19772746880 patent/DE2746880A1/en active Pending
-
1978
- 1978-10-18 ES ES474314A patent/ES474314A1/en not_active Expired
- 1978-10-18 FR FR7829726A patent/FR2406518A2/en active Granted
- 1978-10-18 GB GB7841009A patent/GB2011306A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
ES474314A1 (en) | 1979-04-16 |
FR2406518B2 (en) | 1982-09-03 |
FR2406518A2 (en) | 1979-05-18 |
DE2746880A1 (en) | 1979-04-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |