CH619396A5 - Process and device for producing mouldings from foamable thermoplastic granules - Google Patents
Process and device for producing mouldings from foamable thermoplastic granules Download PDFInfo
- Publication number
- CH619396A5 CH619396A5 CH1263076A CH1263076A CH619396A5 CH 619396 A5 CH619396 A5 CH 619396A5 CH 1263076 A CH1263076 A CH 1263076A CH 1263076 A CH1263076 A CH 1263076A CH 619396 A5 CH619396 A5 CH 619396A5
- Authority
- CH
- Switzerland
- Prior art keywords
- steam
- mold
- interior
- chamber
- chambers
- Prior art date
Links
- 238000000465 moulding Methods 0.000 title claims description 41
- 238000000034 method Methods 0.000 title claims description 20
- 239000008187 granular material Substances 0.000 title claims description 9
- 230000008569 process Effects 0.000 title claims description 8
- 229920001169 thermoplastic Polymers 0.000 title claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 title claims description 5
- 238000009826 distribution Methods 0.000 claims description 62
- 238000001816 cooling Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000005187 foaming Methods 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000009825 accumulation Methods 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 229920000426 Microplastic Polymers 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims description 2
- 230000003993 interaction Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 25
- 238000007789 sealing Methods 0.000 description 9
- 239000002245 particle Substances 0.000 description 6
- 238000005429 filling process Methods 0.000 description 4
- 238000010097 foam moulding Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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)
- Molding Of Porous Articles (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752544714 DE2544714A1 (de) | 1975-10-07 | 1975-10-07 | Vorrichtung zum herstellen von formlingen aus aufschaeumbarem thermoplastischen kunststoff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH619396A5 true CH619396A5 (en) | 1980-09-30 |
Family
ID=5958453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1263076A CH619396A5 (en) | 1975-10-07 | 1976-10-06 | Process and device for producing mouldings from foamable thermoplastic granules |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH619396A5 (enExample) |
| DE (1) | DE2544714A1 (enExample) |
| DK (1) | DK447776A (enExample) |
| FR (1) | FR2327067A1 (enExample) |
| GB (1) | GB1563324A (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1202255B (it) * | 1985-05-07 | 1989-02-02 | Costantino Toffoli | Stampo di sinterizzazione di polistirolo preespanso per la formazione di manufatti |
| CA2036009A1 (en) * | 1990-04-02 | 1991-10-03 | Russell J. Vanrens | Apparatus for molding lost foam pattern sections |
| DE102009053272B4 (de) * | 2009-11-13 | 2013-04-11 | Fagerdala Automotive AG | Vorrichtung zur Herstellung von Formteilen aus Partikelschäumen |
| ES2685633T3 (es) * | 2015-04-27 | 2018-10-10 | Overath Slm Gmbh | Herramienta de moldeo |
| DE102015013131B4 (de) | 2015-10-13 | 2018-05-24 | Krallmann Kunststoffverarbeitung Gmbh | Vorrichtung und Verfahren zur Herstellung von aus einem Partikelschaum bestehenden Formteilen |
| DE102022114033A1 (de) | 2022-06-02 | 2023-12-07 | Siegfried Hofmann Gmbh | Formwerkzeug zur Verarbeitung eines Partikelschaummaterials zur Herstellung eines Partikelschaumformteils |
-
1975
- 1975-10-07 DE DE19752544714 patent/DE2544714A1/de not_active Withdrawn
-
1976
- 1976-10-05 DK DK447776A patent/DK447776A/da not_active Application Discontinuation
- 1976-10-06 CH CH1263076A patent/CH619396A5/de not_active IP Right Cessation
- 1976-10-07 FR FR7630191A patent/FR2327067A1/fr active Granted
- 1976-10-07 GB GB41733/76A patent/GB1563324A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2327067A1 (fr) | 1977-05-06 |
| FR2327067B3 (enExample) | 1980-09-26 |
| DE2544714A1 (de) | 1977-04-21 |
| GB1563324A (en) | 1980-03-26 |
| DK447776A (da) | 1977-04-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |