ES479976A1 - Dispositivo y procedimiento para fabricar piezas moldeadas abase de material sintetico termoplastico espumable. - Google Patents
Dispositivo y procedimiento para fabricar piezas moldeadas abase de material sintetico termoplastico espumable.Info
- Publication number
- ES479976A1 ES479976A1 ES479976A ES479976A ES479976A1 ES 479976 A1 ES479976 A1 ES 479976A1 ES 479976 A ES479976 A ES 479976A ES 479976 A ES479976 A ES 479976A ES 479976 A1 ES479976 A1 ES 479976A1
- Authority
- ES
- Spain
- Prior art keywords
- mould
- moulds
- thermoplastic synthetic
- vapour
- foamable thermoplastic
- 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
- Moulds For Moulding Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Dispositivo para fabricar piezas moldeadas a base de material sintético termoplástico espumable, con dos mitades de molde, cada una de las cuales contiene una cámara de vapor, que son desplazables axialmente una con relación a la otra, y que se apoyan mutuamente en su posición de cierre junto a un plano de separación que discurre transversalmente con respecto a la dirección axial de desplazamiento y , con dos elementos de inserción de molde, que alojan el material durante el proceso de espumado, los cuales determinan la forma exterior de las piezas moldeadas, caracterizado porque para cerrar po el lado frontal las cámaras para vapor previstas sendas paredes transversales, las cuales son desplazables axialmente de modo divergente desde la mitad de cámara para vapor con el fin de formar una rendija que une el espacio interior de cada cámara para vapor con el aire circundante, que aumenta la velocidad de enfriamiento.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782818535 DE2818535A1 (de) | 1978-04-27 | 1978-04-27 | Vorrichtung und verfahren zum herstellen von formteilen aus aufschaeumbarem, thermoplastischem kunststoff |
DE19782843060 DE2843060A1 (de) | 1978-10-03 | 1978-10-03 | Verfahren zum herstellen von formteilen aus schaumstoff |
Publications (1)
Publication Number | Publication Date |
---|---|
ES479976A1 true ES479976A1 (es) | 1980-01-16 |
Family
ID=25774361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES479976A Expired ES479976A1 (es) | 1978-04-27 | 1979-04-26 | Dispositivo y procedimiento para fabricar piezas moldeadas abase de material sintetico termoplastico espumable. |
Country Status (3)
Country | Link |
---|---|
ES (1) | ES479976A1 (es) |
FR (1) | FR2424124A1 (es) |
GB (1) | GB2024696B (es) |
-
1979
- 1979-04-26 FR FR7910667A patent/FR2424124A1/fr not_active Withdrawn
- 1979-04-26 ES ES479976A patent/ES479976A1/es not_active Expired
- 1979-04-27 GB GB7914801A patent/GB2024696B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2024696A (en) | 1980-01-16 |
FR2424124A1 (fr) | 1979-11-23 |
GB2024696B (en) | 1982-06-30 |
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