FR2694231A1 - Composite plastic objects. - Google Patents
Composite plastic objects. Download PDFInfo
- Publication number
- FR2694231A1 FR2694231A1 FR9309240A FR9309240A FR2694231A1 FR 2694231 A1 FR2694231 A1 FR 2694231A1 FR 9309240 A FR9309240 A FR 9309240A FR 9309240 A FR9309240 A FR 9309240A FR 2694231 A1 FR2694231 A1 FR 2694231A1
- Authority
- FR
- France
- Prior art keywords
- plastic
- anodized
- composite
- type
- structural component
- 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.)
- Granted
Links
- 239000004033 plastic Substances 0.000 title claims abstract description 21
- 239000002131 composite material Substances 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 238000002048 anodisation reaction Methods 0.000 claims description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 4
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 150000002989 phenols Chemical class 0.000 claims 1
- 238000007743 anodising Methods 0.000 description 5
- 239000011162 core material Substances 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004634 thermosetting polymer Substances 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/681—Component parts, details or accessories; Auxiliary operations
- B29C70/683—Pretreatment of the preformed part, e.g. insert
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
-
- 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
- B29K2061/00—Use of condensation polymers of aldehydes or ketones or derivatives thereof, as moulding material
- B29K2061/04—Phenoplasts
-
- 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
- B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
- B29K2309/08—Glass
-
- 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
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
- B29K2705/02—Aluminium
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
L'objet en matière plastique de type composite selon l'invention est caractérisé en ce qu'il comprend un corps en matière plastique, présentant, d'un seul tenant avec lui et y adhérant, une pièce constitutive structurale, ladite pièce constitutive structurale ayant, au voisinage du corps en matière plastique, au moins une région de surface en aluminium ou matériau similaire, qui a été anodisée.The plastic object of the composite type according to the invention is characterized in that it comprises a plastic body, having, integrally with it and adhering thereto, a structural component, said structural component having , in the vicinity of the plastic body, at least one surface region of aluminum or similar material, which has been anodized.
Description
OBJETS EN MATIERE PLASTIQUE DE TYPE COMPOSITECOMPOSITE-TYPE PLASTIC OBJECTS
La présente invention porte sur un objet de type composite en matière plastique, présentant, formée d'un seul tenant avec lui, une pièce constitutive structurale, telle qu'un insert en matière relativement ductile, à module The present invention relates to an object of the composite plastic type, having, formed integrally with it, a structural component, such as an insert of relatively ductile material, with modulus
d'élasticité élevé.high elasticity.
Un problème qui peut se présenter dans la fabrication d'un objet en matière plastique de type composite est celui de l'obtention d'un joint collé requis entre le A problem which may arise in the manufacture of a plastic object of the composite type is that of obtaining a glued joint required between the
corps et une pièce constitutive structurale de l'article. body and a structural component of the article.
Ceci peut être une difficulté particulière s'il est nécessaire de créer un joint étanche aux fluides entre le corps et les pièces constitutives Alors qu'il peut être possible de réaliser un joint étanche aux fluides d'un type à verrouillage réciproque mécanique si la pièce constitutive est faite d'une matière telle que le laiton, l'utilisation de cette matière n'est pas toujours acceptable; par exemple, dans le cas d'un objet fabriqué par une technique à noyau perdu, la matière de noyau du moule, fusible, destinée à être retirée par fusion, est trouvée avoir tendance à adhérer de façon indésirable à la pièce constitutive Cela peut présenter des difficultés particulières si la pièce constitutive comprend une structure à filets de vis, étant donné qu'il n'est pas facile de retirer des filets de vis This can be a particular difficulty if it is necessary to create a fluid tight seal between the body and the constituent parts. While it may be possible to make a fluid tight seal of a mechanical interlocking type if the piece constitutive is made of a material such as brass, the use of this material is not always acceptable; for example, in the case of an object made by a lost-core technique, the fusible mold core material intended to be removed by fusion is found to have the tendency to adhere undesirably to the component part. particular difficulties if the component part comprises a screw thread structure, since it is not easy to remove screw threads
toute matière de noyau restante.any remaining core material.
Conformément à l'un de ses aspects, la présente invention propose un objet en matière plastique de type composite, comprenant un corps en matière plastique, présentant, d'un seul tenant avec lui et y adhérant, une pièce constitutive structurale, ladite pièce constitutive structurale ayant, au voisinage du corps en matière plastique, au moins une région de surface en aluminium ou In accordance with one of its aspects, the present invention provides an object of plastic material of the composite type, comprising a body of plastic material, having, integrally with it and adhering thereto, a structural component part, said component part structural having, in the vicinity of the plastic body, at least one surface region of aluminum or
matière similaire, qui a été anodisée. similar material, which has been anodized.
La référence à l'aluminium ou à une matière The reference to aluminum or a material
similaire comprend les alliages d'aluminium et signifie ici une matière métallique d'une sorte qui peut être anodisée. similar includes aluminum alloys and here means a metallic material of a kind which can be anodized.
De préférence, la couche anodisée a été formée par Preferably, the anodized layer was formed by
une anodisation à l'acide sulfurique. anodization with sulfuric acid.
De préférence, la couche anodisée aura une épaisseur qui ne dépasse pas 20 microns et, de façon davantage préférée, qui ne dépasse pas 12 microns. La présente invention envisage de préférence que la couche anodisée soit une couche formée par un mode opératoire d'anodisation qui met en jeu l'utilisation d'une différence de potentiel électrique comprise entre 4 et 14 volts, de façon davantage préférée, entre 8 et 10 volts, d'une température se situant dans la plage de 15 à 250 C et, de façon davantage préférée, dans la plage de 18 à 220 C, et d'une durée d'anodisation d'au moins 10 minutes et, de façon Preferably, the anodized layer will have a thickness which does not exceed 20 microns and, more preferably, which does not exceed 12 microns. The present invention preferably contemplates that the anodized layer is a layer formed by an anodization procedure which involves the use of an electrical potential difference of between 4 and 14 volts, more preferably between 8 and 10 volts, with a temperature in the range of 15 to 250 C and, more preferably, in the range of 18 to 220 C, and with an anodization time of at least 10 minutes and, way
davantage préférée, d'au moins 20 minutes. more preferred, at least 20 minutes.
La matière plastique de l'objet peut être un corps de composé de moulage phénolique, par exemple une résine The plastic of the object can be a body of phenolic molding compound, for example a resin
renforcée par du verre, phénolique de type thermodurcie. reinforced with glass, thermoset type phenolic.
De préférence, la pièce constitutive structurale en aluminium ou matière similaire est une pièce qui a été traitée dans un bain d'anodisation de type acide sulfurique et qui a une couche anodisée d'une épaisseur non supérieure Preferably, the structural component part of aluminum or similar material is a part which has been treated in an anodizing bath of sulfuric acid type and which has an anodized layer of a thickness not greater than
à 8 microns.at 8 microns.
Un mode de réalisation de la présente invention va maintenant être décrit à titre d'exemple seulement, en référence à un boîtier de thermostat en matière plastique moulée, d'une sorte comprenant un corps de résine renforcée par du verre, thermodurcie, présentant, d'un seul tenant avec lui, plusieurs inserts comportant des filets de vis, qui An embodiment of the present invention will now be described by way of example only, with reference to a thermostat housing of molded plastic material, of a kind comprising a glass-reinforced, thermoset resin body, having, '' in one piece with it, several inserts with screw threads, which
facilitent la fixation de l'objet à une structure de support. facilitate attachment of the object to a support structure.
Les inserts comportant des filets de vis sont faits d'un alliage d'aluminium, tel qu'un alliage en conformité à BS 1474 ( 1987) 6082, et qui a été soumis à un traitement Inserts with screw threads are made of an aluminum alloy, such as an alloy in accordance with BS 1474 (1987) 6082, and which has been subjected to treatment
d'anodisation à l'acide sulfurique. anodizing with sulfuric acid.
Dans le traitement d'anodisation, les inserts en aluminium sont placés pendant un laps de temps allant jusqu'à minutes dans un bain d'anodisation d'acide sulfurique d'une concentration de 18 %, à une température de 20 20 C et avec une différence de potentiel de 9 1 volts La partie comportant les filets de vis de la surface de l'insert peut être recouverte pendant l'anodisation, de façon que seules les autres surfaces de 1 'insert, telles que les surfaces pour la liaison à une matière de corps, thermo-durcie, soient In the anodizing treatment, the aluminum inserts are placed for a period of up to minutes in an anodizing bath of sulfuric acid with a concentration of 18%, at a temperature of 20 20 C and with a potential difference of 9 1 volts The part comprising the screw threads of the surface of the insert can be covered during anodization, so that only the other surfaces of the insert, such as the surfaces for the connection to a body material, thermoset, be
totalement soumises au traitement d'anodisation. fully subjected to anodizing treatment.
Par la suite, les inserts sont positionnés dans un moule, dans une relation requise par rapport à un élément de noyau préformé d'une matière fusible, destinée à être retirée par fusion La matière plastique chaude est ensuite injectée dans le moule, et amenée à durcir chimiquement pour donner un corps de boîtier rigide qui enrobe partiellement les surfaces Thereafter, the inserts are positioned in a mold, in a required relationship with respect to a preformed core element of a fusible material, intended to be removed by fusion. The hot plastic material is then injected into the mold, and brought to chemically harden to give a rigid housing body that partially coats surfaces
anodisées des inserts et adhère à celles-ci. anodized inserts and adheres to them.
L'assemblage ainsi formé est ensuite chauffé de The assembly thus formed is then heated with
façon suffisante pour provoquer le retrait par fusion de la matière fusible de l'élément de noyau. sufficient to cause melting of the meltable material from the core member.
Claims (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9216064A GB2269775B (en) | 1992-07-28 | 1992-07-28 | Composite type plastics articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2694231A1 true FR2694231A1 (en) | 1994-02-04 |
| FR2694231B1 FR2694231B1 (en) | 1995-08-04 |
Family
ID=10719460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9309240A Expired - Fee Related FR2694231B1 (en) | 1992-07-28 | 1993-07-27 | COMPOSITE OBJECTS OF PLASTIC MATERIAL. |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE1006794A5 (en) |
| DE (1) | DE4324716A1 (en) |
| FR (1) | FR2694231B1 (en) |
| GB (1) | GB2269775B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19811655A1 (en) * | 1998-03-18 | 1999-09-23 | Schaeffler Waelzlager Ohg | Aluminum-coated plastic component useful as a sliding seal especially in a vehicle hydraulic clutch disengaging system |
| EP2063001A1 (en) * | 2007-11-20 | 2009-05-27 | Alcan Technology & Management Ltd. | Container made of an aluminium sheet back-moulded with plastic |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5339946A (en) * | 1976-09-25 | 1978-04-12 | Sankyo Aruminiumu Kougiyou Kk | Surface treatment of aluminum |
| DE3201307A1 (en) * | 1981-08-19 | 1983-07-28 | Walter Klein GmbH & Co. KG, 5600 Wuppertal | Ram-guard profiled decorative strip with aluminium insert and high-gloss anodised visible or bare region |
| JPH04129577A (en) * | 1990-09-21 | 1992-04-30 | Yokohama Rubber Co Ltd:The | Golf club head |
| FR2694230A1 (en) * | 1992-07-28 | 1994-02-04 | Dunlop Automotives Composites | Process for manufacturing a plastic object of the composite type. |
-
1992
- 1992-07-28 GB GB9216064A patent/GB2269775B/en not_active Expired - Fee Related
-
1993
- 1993-07-23 DE DE19934324716 patent/DE4324716A1/en not_active Withdrawn
- 1993-07-27 FR FR9309240A patent/FR2694231B1/en not_active Expired - Fee Related
- 1993-07-27 BE BE9300782A patent/BE1006794A5/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5339946A (en) * | 1976-09-25 | 1978-04-12 | Sankyo Aruminiumu Kougiyou Kk | Surface treatment of aluminum |
| DE3201307A1 (en) * | 1981-08-19 | 1983-07-28 | Walter Klein GmbH & Co. KG, 5600 Wuppertal | Ram-guard profiled decorative strip with aluminium insert and high-gloss anodised visible or bare region |
| JPH04129577A (en) * | 1990-09-21 | 1992-04-30 | Yokohama Rubber Co Ltd:The | Golf club head |
| FR2694230A1 (en) * | 1992-07-28 | 1994-02-04 | Dunlop Automotives Composites | Process for manufacturing a plastic object of the composite type. |
Non-Patent Citations (2)
| Title |
|---|
| DATABASE WPI Derwent World Patents Index; AN 78-37287A * |
| DATABASE WPI Derwent World Patents Index; AN 92-196848 * |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9216064D0 (en) | 1992-09-09 |
| GB2269775B (en) | 1995-11-01 |
| GB2269775A (en) | 1994-02-23 |
| BE1006794A5 (en) | 1994-12-13 |
| DE4324716A1 (en) | 1994-02-17 |
| FR2694231B1 (en) | 1995-08-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CD | Change of name or company name | ||
| ST | Notification of lapse |