EP0208685A1 - Procedes et appareil de fabrication d'articles a partir de materiaux thermoplastiques moussables - Google Patents
Procedes et appareil de fabrication d'articles a partir de materiaux thermoplastiques moussablesInfo
- Publication number
- EP0208685A1 EP0208685A1 EP85901486A EP85901486A EP0208685A1 EP 0208685 A1 EP0208685 A1 EP 0208685A1 EP 85901486 A EP85901486 A EP 85901486A EP 85901486 A EP85901486 A EP 85901486A EP 0208685 A1 EP0208685 A1 EP 0208685A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold
- foaming
- pressure
- thermoplastic
- methods
- 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- Withdrawn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
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
- B30B5/02—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/10—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
- B29C43/12—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies using bags surrounding the moulding material or using membranes contacting the moulding material
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/14—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps
- B29C43/146—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps for making multilayered articles
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/20—Making multilayered or multicoloured articles
- B29C43/203—Making multilayered articles
- B29C43/206—Making multilayered articles by pressing the material between two preformed layers, e.g. deformable layers
-
- 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
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/10—Applying counter-pressure during expanding
-
- 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
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
- B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
- B29C33/08—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means for dielectric heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/16—Fillers
- B29K2105/165—Hollow fillers, e.g. microballoons or expanded particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/251—Particles, powder or granules
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Différents procédés de moulage de matériaux thermoplastiques moussables sont décrits. Une méthode décrite implique le moussage de matériaux thermoplastiques dans un moule ayant un noyau "de remplacement" qui peut comprendre plusieurs organes interposés entre deux parties d'un moule. Le matériau thermoplastique est placé entre les parties de moule et le (ou chacun) des organes de noyau de remplacement interposés. De cette manière, une pluralité d'articles moulés en mousse sont produits en une seule opération de moulage. Le noyau de remplacement peut consister en une préforme en matériau thermoplastique de sorte qu'il est possible de mouler une construction en sandwich composite. Un autre procédé décrit permet la production d'articles en matériau thermoplastique ayant une structure cellulaire déformée uniformément obtenue en chauffant le matériau à mousser pendant qu'il est maintenu sous pression. Lors de la libération de la pression, une expansion rapide du matériau moussant a lieu, laquelle est contrainte par la forme du moule. Comme résultat, on obtient une structure cellulaire dans l'article moussé, les dimensions de la cellule dans une ou plusieurs directions étant différentes des dimensions dans d'autres directions. Deux méthodes permettant d'obtenir ce résultat sont décrites. Il est également décrit le moulage de matériaux thermoplastiques en utilisant une unité de pression à diaphragme ayant un diaphragme élastomère hermétiquement étiré en travers d'une surface d'une partie de poinçonnage d'un moule. En utilisant cette unité pour tenir le matériau de la préforme sous pression jusqu'à atteindre la température de moussage puis libérer soudainement la pression sur le diaphragme, on obtient un matériau moussé avec les caractéristiques décrites.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB848407309A GB8407309D0 (en) | 1984-03-21 | 1984-03-21 | Foamed thermoplastics materials |
GB8407309 | 1984-03-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0208685A1 true EP0208685A1 (fr) | 1987-01-21 |
Family
ID=10558433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85901486A Withdrawn EP0208685A1 (fr) | 1984-03-21 | 1985-03-19 | Procedes et appareil de fabrication d'articles a partir de materiaux thermoplastiques moussables |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0208685A1 (fr) |
JP (1) | JPS61501502A (fr) |
AU (1) | AU4113685A (fr) |
GB (2) | GB8407309D0 (fr) |
IT (1) | IT1184914B (fr) |
WO (1) | WO1985004131A1 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8703084D0 (en) * | 1987-02-11 | 1987-03-18 | Crompton G | Moulded components |
EP0412903B1 (fr) * | 1989-08-07 | 1994-01-05 | Electricite De France | Panneau en matériau composite résistant au feu et aux impacts, étanche et acoustiquement absorbant, et son procédé de fabrication |
FR2650610B1 (fr) * | 1989-08-07 | 1994-06-10 | Hamon | Procede de fabrication d'un element coupe-feu en materiau composite, et element coupe-feu obtenu par ce procede |
DE3930526A1 (de) * | 1989-09-13 | 1991-03-21 | Grammer Ag | Verfahren zur herstellung eines hinterschaeumten polsterteils und vorrichtung zur durchfuehrung des verfahrens |
FR2663880B1 (fr) * | 1990-06-29 | 1994-04-29 | Roth Sa Freres | Procede de fabrication de matelassures en mousse de polyurethane coulee in situ dans une coiffe en textile et coussin ainsi obtenu. |
NL9001522A (nl) * | 1990-07-04 | 1992-02-03 | Schreiner Luchtvaart | Werkwijze voor het vervaardigen van een voorwerp bestaande uit een schuimkern en eventueel een of meer afdeklagen. |
AU8009898A (en) * | 1997-04-09 | 1998-10-30 | Dbs Beschichtung Und Systemetechnik Gmbh | Method for the production of walls for closed profile sections and object |
JP4894116B2 (ja) * | 2001-09-20 | 2012-03-14 | トヨタ紡織株式会社 | 発泡部を備えるプレス成形体の製造方法 |
CN101733887B (zh) * | 2009-12-29 | 2013-07-10 | 杭州兴源过滤科技股份有限公司 | 双面隔膜滤板加热模压成型装置及成型方法 |
DE102017115142A1 (de) * | 2017-07-06 | 2019-01-10 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren und Vorrichtung zur Herstellung eines mehrlagigen Verbundbauteils |
CN109016437B (zh) * | 2018-08-30 | 2024-07-09 | 谷田(广东)电子科技有限公司 | 头梁护套的制作模具及头梁护套的制备方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB696487A (en) * | 1949-07-25 | 1953-09-02 | A C I Plastics Proprietary Ltd | Improvements in plastic moulding machines and moulds therefor |
DE1704194A1 (de) * | 1967-02-07 | 1971-03-04 | Meyer Fa Rudolf | Verfahren zum Herstellen von Formkoerpern |
FR1595388A (fr) * | 1968-01-02 | 1970-06-08 | ||
DE1935735A1 (de) * | 1968-07-18 | 1970-07-02 | Lion Fat Oil Co Ltd | Verfahren zur Herstellung zelliger Kunststoffprodukte |
DE2007054A1 (en) * | 1970-02-17 | 1971-09-02 | Buettner Schilde Haas Ag | Resin-glass fibre laminates |
US3973892A (en) * | 1972-01-17 | 1976-08-10 | Husky Injection Molding Systems | Injection-molding machine with transverse feed |
US4148854A (en) * | 1976-04-29 | 1979-04-10 | Freeman Chemical Corporation | Matched die molding of fiber reinforced plastic articles |
FR2481996A1 (fr) * | 1980-05-08 | 1981-11-13 | Soule Fer Froid | Procede de fabrication de pieces moulees en materiaux composites et moules employes pour la mise en oeuvre du procede |
AT377228B (de) * | 1980-07-24 | 1985-02-25 | Lignotock Verfahrenstech | Verfahren und vorrichtung zum herstellen von formteilen aus ebenen wirrfaservliesmatten, vorzugsweise aus mit bindemittel versehenen zellulose-oder lignozellulosefasern |
US4337321A (en) * | 1980-12-02 | 1982-06-29 | The Dow Chemical Company | Multi-staged foaming of thermoplastic resin |
AU553465B2 (en) * | 1981-04-15 | 1986-07-17 | Asahi-Dow Ltd. | Thermoplastic insulation |
FR2511297B1 (fr) * | 1981-08-13 | 1986-07-18 | Saplest Sa | Procede de fabrication de pieces en matiere synthetique expansee a caracteristiques physiques variables |
-
1984
- 1984-03-21 GB GB848407309A patent/GB8407309D0/en active Pending
-
1985
- 1985-03-19 GB GB08507117A patent/GB2155846A/en not_active Withdrawn
- 1985-03-19 AU AU41136/85A patent/AU4113685A/en not_active Abandoned
- 1985-03-19 EP EP85901486A patent/EP0208685A1/fr not_active Withdrawn
- 1985-03-19 WO PCT/GB1985/000107 patent/WO1985004131A1/fr unknown
- 1985-03-19 JP JP60501157A patent/JPS61501502A/ja active Pending
- 1985-03-20 IT IT67271/85A patent/IT1184914B/it active
Non-Patent Citations (1)
Title |
---|
See references of WO8504131A1 * |
Also Published As
Publication number | Publication date |
---|---|
IT1184914B (it) | 1987-10-28 |
IT8567271A0 (it) | 1985-03-20 |
JPS61501502A (ja) | 1986-07-24 |
GB8407309D0 (en) | 1984-04-26 |
GB8507117D0 (en) | 1985-04-24 |
AU4113685A (en) | 1985-10-11 |
IT8567271A1 (it) | 1986-09-20 |
GB2155846A (en) | 1985-10-02 |
WO1985004131A1 (fr) | 1985-09-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB LI LU NL SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19860923 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: ASHTON, JOHN WILLIAM Inventor name: SINGH, DEVENDRA PAL |