ES474314A1 - Procedimiento y dispositivo para introducir material sinte- tico espumable en maquinas automaticas de fabricacion de es-puma. - Google Patents
Procedimiento y dispositivo para introducir material sinte- tico espumable en maquinas automaticas de fabricacion de es-puma.Info
- Publication number
- ES474314A1 ES474314A1 ES474314A ES474314A ES474314A1 ES 474314 A1 ES474314 A1 ES 474314A1 ES 474314 A ES474314 A ES 474314A ES 474314 A ES474314 A ES 474314A ES 474314 A1 ES474314 A1 ES 474314A1
- Authority
- ES
- Spain
- 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.)
- 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
- 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
Procedimiento para introducir material sintético espumable en máquinas automáticas de fabricación de espuma, caracterizado porque como material sintético se utiliza polietileno, el cual se introduce primero en el silo de presión para cargar moldes simples o múltiples en una cantidad suficiente para varios procesos de espumado, y luego se expulsa del silo de presión llevándolo al molde a través de una tubería de presión con ayuda de aire comprimido introducido en el silo de presión.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772746880 DE2746880A1 (de) | 1977-10-19 | 1977-10-19 | Verfahren und vorrichtung zum einfuellen von schaeumbarem kunststoff in ausschaeumautomaten |
Publications (1)
Publication Number | Publication Date |
---|---|
ES474314A1 true ES474314A1 (es) | 1979-04-16 |
Family
ID=6021747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES474314A Expired ES474314A1 (es) | 1977-10-19 | 1978-10-18 | Procedimiento y dispositivo para introducir material sinte- tico espumable en maquinas automaticas de fabricacion de es-puma. |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2746880A1 (es) |
ES (1) | ES474314A1 (es) |
FR (1) | FR2406518A2 (es) |
GB (1) | GB2011306A (es) |
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 (de) * | 1986-02-01 | 1987-08-06 | Hans Erlenbach | Vorrichtung zum herstellen von formlingen aus aufgeschaeumtem kunststoff |
-
1977
- 1977-10-19 DE DE19772746880 patent/DE2746880A1/de active Pending
-
1978
- 1978-10-18 FR FR7829726A patent/FR2406518A2/fr active Granted
- 1978-10-18 GB GB7841009A patent/GB2011306A/en not_active Withdrawn
- 1978-10-18 ES ES474314A patent/ES474314A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2011306A (en) | 1979-07-11 |
FR2406518B2 (es) | 1982-09-03 |
FR2406518A2 (fr) | 1979-05-18 |
DE2746880A1 (de) | 1979-04-26 |
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