EP1667833A1 - Procede de fabrication d'une structure composite, et structure ainsi obtenue - Google Patents

Procede de fabrication d'une structure composite, et structure ainsi obtenue

Info

Publication number
EP1667833A1
EP1667833A1 EP04765263A EP04765263A EP1667833A1 EP 1667833 A1 EP1667833 A1 EP 1667833A1 EP 04765263 A EP04765263 A EP 04765263A EP 04765263 A EP04765263 A EP 04765263A EP 1667833 A1 EP1667833 A1 EP 1667833A1
Authority
EP
European Patent Office
Prior art keywords
component
adhesion promoter
metal component
promoter layer
composite
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Withdrawn
Application number
EP04765263A
Other languages
German (de)
English (en)
Inventor
Holm Riepenhausen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rehau Automotive SE and Co KG
Original Assignee
Rehau AG and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rehau AG and Co filed Critical Rehau AG and Co
Publication of EP1667833A1 publication Critical patent/EP1667833A1/fr
Withdrawn legal-status Critical Current

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
    • 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
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/44—Joining a heated non plastics element to a plastics element
    • B29C65/46—Joining a heated non plastics element to a plastics element heated by induction
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
    • B62D29/004—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material the metal being over-moulded by the synthetic material, e.g. in a mould
    • 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
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B29C66/7422—Aluminium or alloys of aluminium
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B29C66/7428—Transition metals or their alloys
    • B29C66/74283—Iron or alloys of iron, e.g. steel
    • 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
    • B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
    • 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
    • B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
    • B29K2305/02—Aluminium
    • 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
    • B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
    • B29K2305/08—Transition metals
    • B29K2305/12—Iron
    • 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
    • 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
    • B29K2715/00—Condition, form or state of preformed parts, e.g. inserts
    • B29K2715/006—Glues or adhesives, e.g. hot melts or thermofusible adhesives

Definitions

  • the invention relates to a method for producing a composite component according to the preamble of claim 1. Furthermore, the invention relates to a composite component produced with such a method according to the preamble of claim 3.
  • a generic method and composite components produced with it are known from prior public use.
  • a metal component coated with adhesive lacquer is connected in a continuous process by coextrusion with a plastic component.
  • the metal component which is in the form of a film, is preheated in the known method, so that the adhesion promoter layer is activated during the injection molding and creates a connection between the metal component and the molded plastic component.
  • Activation of the bonding agent requires that a certain temperature, which is dependent on the particular bonding agent used, is exceeded. If this temperature is not reached, there is an insufficient connection between the two components of the composite component.
  • the connection via an adhesion promoter layer was therefore previously reserved for a few special areas of application.
  • a composite component is also known from DE 38 39 855 C2, in which reinforcing ribs made of molded plastic are connected to a base made of metal via openings in this base through which the plastic is injected. Such a connection does not have optimal strength. As an alternative, it is known to also achieve a positive connection by means of appropriate sealing of the metal component. Such positive connections always have an insufficient bond strength.
  • This object is achieved according to the invention by a production method with the features specified in the characterizing part of claim 1.
  • metal components can also be heated sufficiently to activate the adhesion promoter layer, for which this was previously not possible before or during the injection molding step.
  • thicker metal components which previously could not be heated sufficiently to activate the adhesion promoter on the side facing the plastic component during injection molding, since the heat immediately flowed into the interior of the metal.
  • sufficient heat is subsequently added until a thicker metal component near the adhesion promoter layer is also heated so that the latter is activated. Since the method according to the invention is independent of the process control during injection molding, it can be carried out after a continuous or a discontinuous injection molding process.
  • Inductive heating according to claim 2 is particularly elegant.
  • the metal component does not have to be specially prepared for this.
  • Bulky composite components can also be produced in this way by activating the bonding agent layer without major equipment problems.
  • Another object of the present invention is to develop a composite component of the type mentioned in the introduction in such a way that a load-bearing connection between the metal and the plastic component can be produced with little effort.
  • An activatable adhesion promoter layer can be applied in advance of any necessary deformation of the metal component or in the run-up to the production of the composite component, which simplifies production.
  • a connection of the metal component to the plastic component via a positive connection is not absolutely necessary, so that, for example, an undercut-free configuration of the connecting wall between the metal component and the plastic component is possible.
  • the adhesion promoter layer ensures a secure material connection between the metal component and the plastic component.
  • the metal component and the plastic component can in particular be designed in such a way that the contact surface of the adhesion promoter layer extends over the connecting wall to the greatest possible extent up to a complete coverage of the metal component. This reduces the requirements for the adhesion promoter layer in order to achieve a predetermined material bond.
  • the metal component can be provided on one or both sides with the adhesive layer.
  • the adhesion promoter layer can be applied over the entire surface of the metal component according to claim 4 or alternatively only where adhesion is desired. Adhesion-free areas can be created in a targeted manner.
  • connection structure can be designed, for example, as a rib or as a cup. Other connection structures are also possible.
  • a composite component 1 has a sheet metal 2 made of steel or aluminum as the metal component.
  • the sheet metal 2 adheres to a plastic component 4 of the composite component 1 via a continuous connecting wall 3.
  • the plastic component 4 comprises a connecting section 4a arranged parallel to the connecting surface 3 and a reinforcing section 4b perpendicular to it in the form of a rib or a web. Where the connecting section 4a and the reinforcing section 4b abut one another, a stress-relieving rounding 4c is preferably provided.
  • the sheet 2 Perpendicular to the connecting wall 3, the sheet 2 has a thickness that is dimensioned depending on the design of the composite component 1.
  • An adhesive layer 5 is arranged between the sheet 2 and the connecting section 4a of the plastic component 4, via which the sheet 2 and the plastic component 4 adhere to one another.
  • the adhesion promoter layer 5 is also referred to as a primer.
  • connecting section 4a is not continuous, but is designed as a foot section extending to the right and left of the reinforcing section 4b, so that the plastic component of the composite component 1 according to FIG shown area has the cross section of an inverted letter "T".
  • the sheet 2 has a connection structure 6 with a U-shaped cross section, which engages in a complementary connection receptacle 7 of the plastic component 4. Due to the connection structure 6 and the complementary connection receptacle 7, the sheet 2 is also connected to the plastic component 4 in a form-fitting manner.
  • connection structure 6 is designed as a continuous connection rib.
  • connection structure 6 can also be designed, for example, as a connection cup whose cross section corresponds to that of FIG. 3 and which can have a rectangular or round cross section parallel to the bowl bottom.
  • Composite components 1 according to FIGS. 1 to 4 are used, for example, as hollow chamber components in vehicle construction, the plastic component 4 being used to increase the mechanical strength of the metal component, that is to say the sheet metal 2.
  • the buckling stiffness, but also z. B. the torsional strength is hereby improved.
  • Examples of such composite components 1 are metallic U-profiles reinforced with plastic ribs and metal-plastic trim strips. Bulky, larger components, such as. B. front-end modules of motor vehicles, can be produced according to the invention as composite components 1.
  • a manufacturing method for a composite component according to FIGS. 1 to 4 shows the schematic flow diagram of FIG. 5.
  • This manufacturing method is suitable for a sheet 2 made of steel with a thickness that is greater than 0.3 mm, or for a sheet 2 Aluminum with a thickness greater than 0.7 mm. Other sheet thicknesses can also be processed, so that the specified ranges are not a limitation.
  • the sheet 2 is first checked in a control step 11 with regard to its dimensions and material quality. 5, the adhesion promoter layer 5 has already been applied to the sheet 2 before the goods receipt step 10.
  • the sheet 2 is initially stored temporarily in a storage step 12.
  • Plastic raw material for the plastic component 4 runs in parallel through a corresponding goods receipt step 13 as well as a control step 14 and a storage step 15.
  • the sheet 2 is placed in an injection mold and overmolded with the plasticized plastic raw material.
  • the plastic raw material lies against the sheet metal 2 via the connecting wall 3, so that when the composite component 1 is designed according to FIGS. 3 and 4, form-fitting connections are formed.
  • the metal sheet 2 is inserted into the mold of the injection mold in such a way that the adhesion promoter layer 5 faces a free volume in the mold of the injection mold.
  • the sheet 2 is heated in an activation step 17. This heating can take place by means of induction or resistance heating.
  • the activation step 17 can be carried out, for example, in that the injection-molded composite component 1 is guided through an induction coil by means of a removal device of the injection molding tool.
  • the activation step 17 takes place in particular only a short time after the injection molding step 16, so that the sheet 2 is still warm as a result of the injection molding step 16.
  • the energy to be applied in the activation step 17 is thus low. Due to the heating, the adhesion promoter layer 5 is activated, so that a material bond between the sheet metal 2 and the plastic component 4 takes place over the entire connecting wall 3, on which the adhesion promoter layer 5 is present.
  • the composite component 1 produced is checked with regard to its dimensions, its material quality and the resistance of the material connection between the sheet metal 2 and the plastic component 4. After a positive test, the composite component 1 produced is stored in a storage step 19. The quality requirements after the control step 18 composite components 1 are not improved in a post-processing step 20. The success of the postprocessing step 20 is checked in a further control step 21. Only composite components 1 that withstand this test arrive at the storage step 19. The composite components 1 that do not exist in the control step 21 are fed to a reject processing step 22.
  • the height of the temperature of the sheet 2 to be set in the activation step 17 or in the injection molding / activation step 16, 17 for activating the adhesion promoter layer 5 and the duration of the heating for this activation depend on the thickness of the sheet 2 and on the required processing temperature of the plastic component 4.
  • a sheet 2 coated on one side with the adhesion promoter layer 5 is used. If, in an alternative composite component, the sheet 2 is to be arranged between two plastic components connected thereto, a sheet 2 coated on both sides with the adhesion promoter layer is alternatively used.
  • a sheet 2 already coated with the adhesion promoter layer 5 is processed further.
  • the adhesion promoter layer 5 can be applied before or after a step shaping the sheet 2.
  • the coating with the adhesion promoter layer 5 can also be carried out only immediately before the injection molding step 16.
  • adhesion promoter layer 5 in connection with the invention, this also includes adhesion promoter layers which are multilayer (sandwich layer) and which are applied to the sheet metal 2 and consist of at least 2 components.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé de fabrication d'une structure composite (1) comprenant les étapes suivantes : on prépare d'abord un composant métallique (2) présentant une couche de promoteur d'adhérence (5). Le composant métallique (2) est ensuite introduit dans un moule d'un outil de moulage par injection, de telle façon que ladite couche de promoteur d'adhérence (5) soit opposée à un volume libre dans le moule. Un composant en matière plastique (4) est ensuite appliqué, par moulage par injection, sur le composant métallique (2). Pour finir, on chauffe le composant métallique (2), en vue d'activer la couche de promoteur d'adhérence (5) après moulage par injection. On obtient ainsi une structure composite (1) dont les composants (2, 4) sont liés de façon sûre entre eux.
EP04765263A 2003-10-04 2004-09-16 Procede de fabrication d'une structure composite, et structure ainsi obtenue Withdrawn EP1667833A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10346097A DE10346097A1 (de) 2003-10-04 2003-10-04 Verfahren zur Herstellung eines Verbundbauteils sowie hiermit hergestelltes Verbundbauteil
PCT/EP2004/010360 WO2005032793A1 (fr) 2003-10-04 2004-09-16 Procede de fabrication d'une structure composite, et structure ainsi obtenue

Publications (1)

Publication Number Publication Date
EP1667833A1 true EP1667833A1 (fr) 2006-06-14

Family

ID=34399234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04765263A Withdrawn EP1667833A1 (fr) 2003-10-04 2004-09-16 Procede de fabrication d'une structure composite, et structure ainsi obtenue

Country Status (3)

Country Link
EP (1) EP1667833A1 (fr)
DE (1) DE10346097A1 (fr)
WO (1) WO2005032793A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2864816B1 (fr) † 2004-01-02 2006-04-14 Plastic Omnium Cie Procede de fabrication d'une piece de carrosserie de vehicule automobile, piece de carrosserie
DE102005032421B4 (de) * 2005-07-12 2008-03-27 Erbslöh Ag Verfahren zum Herstellen eines dekorativen Zierteils
WO2007137830A1 (fr) 2006-05-31 2007-12-06 Huntsman Advanced Materials (Switzerland) Gmbh Carter d'huile hybride métal/plastique
KR100792524B1 (ko) * 2007-05-09 2008-01-09 (주)삼영코넥 금속접착몰딩방법 및 금속접착몰딩물
EP2014440A1 (fr) 2007-07-13 2009-01-14 Hueck Folien Ges.m.b.H. Moulage d'insert directement recouvert - feuilles décoratives et stratifiées
DE102007062524B3 (de) * 2007-12-20 2009-02-26 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Hybridbauteils und Hybridbauteil
US8256121B2 (en) * 2008-05-29 2012-09-04 Leatherman Tool Group, Inc. Folding hand tool having an at least partially composite handle
CN102215653B (zh) * 2010-04-06 2013-11-27 铂邑科技股份有限公司 具有塑质结合件的金属薄壳件及其制法
US9573843B2 (en) 2013-08-05 2017-02-21 Corning Incorporated Polymer edge-covered glass articles and methods for making and using same

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US4024008A (en) * 1976-09-07 1977-05-17 Honeywell Inc. Plastic to metal bonding method
DE3839855A1 (de) * 1988-11-25 1990-05-31 Bayer Ag Leichtbauteil
DD277433A1 (de) * 1988-11-30 1990-04-04 Zi F Schweisstechnik Der Ddr A Verfahren zum einbetten von metallischen oder nichtmetallischen teilen in plast- und elastformteile
US5000903A (en) * 1989-04-06 1991-03-19 Libbey-Owens-Ford Co. Method of molding plastic products having chemically bonded protective coatings
JP3016331B2 (ja) * 1993-09-07 2000-03-06 富士通株式会社 電子機器筐体の製造方法
AU764974B2 (en) * 1999-04-02 2003-09-04 Basell Technology Company B.V. Coupling metal parts with a plastic material
EP1467849B1 (fr) * 2002-01-22 2011-03-09 Weidmann Plastics Technology AG Procede de fabrication d'un corps moule collable et corps moule fabrique selon ce procede

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Also Published As

Publication number Publication date
WO2005032793A1 (fr) 2005-04-14
DE10346097A1 (de) 2005-05-04

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