WO2009062560A1 - Elément composite et procédé pour fabriquer un élément composite - Google Patents

Elément composite et procédé pour fabriquer un élément composite Download PDF

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Publication number
WO2009062560A1
WO2009062560A1 PCT/EP2008/007175 EP2008007175W WO2009062560A1 WO 2009062560 A1 WO2009062560 A1 WO 2009062560A1 EP 2008007175 W EP2008007175 W EP 2008007175W WO 2009062560 A1 WO2009062560 A1 WO 2009062560A1
Authority
WO
WIPO (PCT)
Prior art keywords
plastic
composite component
profile element
base profile
plastics
Prior art date
Application number
PCT/EP2008/007175
Other languages
German (de)
English (en)
Inventor
Eckhard Reese
Original Assignee
Daimler Ag
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 Daimler Ag filed Critical Daimler Ag
Publication of WO2009062560A1 publication Critical patent/WO2009062560A1/fr

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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert
    • 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
    • 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
    • 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
    • B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic 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
    • 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
    • B29C45/1418—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 inserts being deformed or preformed, e.g. by the injection pressure
    • B29C2045/14213—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 inserts being deformed or preformed, e.g. by the injection pressure deforming by gas or fluid pressure in the mould cavity
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C2045/1692—Making multilayered or multicoloured articles one layer comprising fibres
    • 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
    • B29C45/1418—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 inserts being deformed or preformed, e.g. by the injection 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1657—Making multilayered or multicoloured articles using means for adhering or bonding the layers or parts to each other
    • 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
    • B29K2079/00—Use of polymers having nitrogen, with or without oxygen or carbon only, in the main chain, not provided for in groups B29K2061/00 - B29K2077/00, as moulding material
    • 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

Definitions

  • the invention relates to a composite component, in particular composite component for a motor vehicle, comprising at least one metallic base profile element and at least one molded plastic element of a plastic A on the basic profile element, wherein the base profile element at least partially has a coating layer of a plastic B.
  • the invention further relates to a method for producing a composite component, in particular a composite component of a motor vehicle, comprising at least one metallic base profile element and at least one plastic element molded onto the base profile element.
  • Composite components of the type mentioned are finding more and more use in automotive or vehicle.
  • the advantages of using such composite components are in particular in the weight savings as well as associated cost savings. Decisive in such composite components, however, is to be able to generate a sufficiently high bond strength.
  • positive connections such as by undercuts or surface treatments of the basic profile elements such as sandblasting or the application of a primer on the basic profile elements are known.
  • these known methods usually have a relatively high expense and cost intensive character, so that in particular the production of the composite components is relatively cumbersome and expensive.
  • DE 100 14 332 C2 a composite component of a hollow profile base body and at least one plastic element, which is fixedly connected to the hollow profile base body, known.
  • the plastic element is molded onto the hollow profile base body, wherein its connection with the hollow profile base body at discrete connection points by partial or complete sheathing of the hollow profile base body at several connection points with the molded for the plastic element Plastic takes place.
  • a coating layer of plastic can be applied to the metallic hollow profile base body, which supports the forming of the hollow profile base body as corrosion protection and in the case of the so-called internal high-pressure forming process as a sliding layer.
  • a composite component according to the invention in particular a composite component for a motor vehicle, comprises at least one metallic base profile element and at least one plastic element of a plastic A molded onto the base profile element, the base profile element at least partially having a coating layer of a plastic B.
  • the plastic A has a higher melting temperature than the plastic B and the plastics A and B are selected from a group of similar, similar chemical, bondable properties exhibiting plastics.
  • the design of a coating layer between the base profile element and the associated plastic element results in a cohesive connection between the coating layer and the plastic element.
  • the coating layer is melted on its surface facing the plastic element by the occurring during the Anspritzvorgang of the plastic element process temperature, so that may result in a subsequent cooling a cohesive connection between the two plastic elements.
  • the resulting High bond strength and the resulting material savings result on the one hand cost savings in the production of composite parts and weight savings in the composite components.
  • these composite components have a high structural integrity, a high deformation and energy absorption capacity, the latter comes into play especially in structural and hybrid composite components.
  • the existing process pressures can also contribute to the superficial melting of the coating layer.
  • the formation of a cohesive connection advantageously ensures a significantly improved bond between the base profile element and the molded plastic element.
  • the coating layer serves as a kind of joining element between the base profile element and the overmolded plastic element.
  • the two plastics A and B are selected from a group of related, similar chemical properties exhibiting plastics. These are understood as meaning plastics which, for example, have the same matrix, a comparable polymerization, a comparable chaining of the individual monomers as well as a comparable pre-mesh matrix.
  • the plastics A and B are selected from the group comprising synthetically produced thermoplastic materials, in particular from the group of polyamides.
  • the plastic A PA6, in particular PA6.6 and the plastic B PA12 the melting temperature of the plastic A may have between 260 0 C and 290 0 C and the melting temperature of the plastic B between 220 0 C and 240 ° C. Due to the lower melting temperature of the plastic B is ensured that it comes through the process temperature and / or the process pressure to a melting of the coating layer in the injection molding of the plastic element to the base profile element.
  • thermoplastic, semi-crystalline or amorphous plastics such as polyethylene and polybutylene terephthalate, polyoxymethylene, polysulfone, polyethersulfone, polyphenylene sulfide, polypropylene or acrylonitrile-butadiene-styrene may also serve as base materials for making the plastic elements bonded to the base profile member.
  • the plastic A and / or the plastic B has at least one fiber material.
  • the fiber material may consist of glass fibers, carbon fibers, Ceramic fibers, metal fibers or a mixture of at least two of these fiber materials.
  • a layer consisting of a primer and / or adhesion promoter is arranged between the surface of the base profile element and the coating layer.
  • primers and / or adhesion promoters leads to a further strengthening of the connection between the base profile element and the coating layer, whereby overall the composite adhesion of the composite component, ie. H. the composite adhesion between the base profile element and the associated plastic element can be further improved.
  • the basic profile element is produced by means of an internal high-pressure forming process.
  • the basic profile element made of steel, FRP (fiber reinforced plastic) - preferably a CFK braid -, aluminum, at least one aluminum alloy or at least one magnesium alloy.
  • Composite components according to the invention are used in particular in motor vehicle construction, wherein the composite component may be a front end support, a rear wall support, a transverse or longitudinal beam, a vehicle door, a rear shelf or a self-supporting support structure of the motor vehicle.
  • the composite component may be a front end support, a rear wall support, a transverse or longitudinal beam, a vehicle door, a rear shelf or a self-supporting support structure of the motor vehicle.
  • An inventive method for producing a composite component, in particular a composite component of a motor vehicle, comprising at least one metallic base profile element and at least one plastic element molded onto the base profile element comprises the following steps:
  • the inventive method ensures a cohesive connection between the coating layer and the plastic element, so that overall a very high bond strength of the individual parts of the composite component produced.
  • the inventive selection of the plastics A and B thereby causes the plastic B of the coating layer is at least superficially melted in the partial encapsulation of the base profile element with the plastic A, so that said cohesive connection can form.
  • the melting is caused by the higher process temperature, due to the higher melting temperature of the plastic A and / or by the process pressures occurring in the Anspritzvorgang of the plastic element.
  • a cohesive connection between the coating layer surrounding the base profile and the overmolded or molded plastic element is advantageously produced under manufacturing process conditions of the composite part.
  • the resulting high bond strength and the resulting material savings result on the one hand cost savings in the production of composite parts and weight savings of the composite components produced themselves.
  • the composite components produced have a high structural integrity, a high deformation and energy absorption capacity, the latter especially in structural and hybrid composite components comes into play. Since the production the composite component can be done in a tool, the tool costs are relatively low.
  • step b) heating of the tool and / or the base member profile takes place in step b) heating of the tool and / or the base member profile.
  • a heating of the tool and / or the base element profile leads to improved results during encapsulation or injection molding of the plastic element to the basic profile element.
  • a heating of the tool to a temperature between 75 ° C and 100 0 C is particularly advantageous. Typical mold temperatures for comparable processes are below 75 ° C.
  • the base element profile and the layer can be heated by a water emulsion, which is located within the profile in a heated and preferably tempered state.
  • the plastics A and B are selected from the group comprising synthetically produced thermoplastic materials.
  • the plastics A and B are selected from the group of polyamides.
  • the plastic A may be PA6 or PA6.6 and the plastic B PA12.
  • the plastic A may have a melting temperature between 260 0 C and 290 ° C and the plastic B has a melting temperature between 220 0 C and 240 0 C.
  • Other plastics, as already described above, can also be used. The prerequisite is, however, that the two plastics A and B are selected from a group of related, similar chemical properties exhibiting plastics.
  • thermoplastic materials which, for example, have the same matrix, a comparable polymerization, a comparable chaining of the individual monomers as well as a comparable pre-mesh matrix.
  • the above-mentioned thermoplastic materials can be processed relatively easily and result in a very high overall adhesion between the base profile element and the overmolded plastic element, as it comes to a cohesive connection between the coating layer and the plastic element.
  • the plastic A and / or the plastic B has at least one fiber material on.
  • the fiber material may consist of glass fibers, carbon fibers, ceramic fibers, metal fibers or a mixture of at least two of these fiber materials.
  • a layer consisting of a primer and / or adhesion promoter is applied to the surface of the basic profile element before method step a).
  • the basic profile element is produced by means of an internal high-pressure Urnform compilers.
  • the internal high-pressure forming process and the process steps a) to c) can be carried out in a machine with one or more tools.
  • the combination of the internal high-pressure forming process for the design of the base profile element with the manufacture according to the invention, in particular injection molding and molding of the plastic element connected to the base profile element results in a particularly economical, fast and cost-effective way of producing composite components.
  • the abovementioned water emulsion can be the high-pressure liquid in a simple manner, by means of which the base element profile is formed in the internal high-pressure forming process. This means that no additional heating media are required to heat the tool and in particular the base profile element and thus also the layer, since the liquid is already needed anyway as a pressure medium for forming.
  • the basic profile element made of steel, FRP - preferably a CFRP braid -, aluminum, at least one aluminum or magnesium alloy.
  • the basic profile element can also be designed to be open or closed, wherein when using the internal high-pressure forming process, the basic profile element is formed by a circumferentially closed, in particular tubular hollow profile.
  • Figure 1 is a schematic representation of a manufacturing step according to the inventive method for producing a composite component.
  • Fig. 2 is a schematic representation of an inventive
  • FIG. 1 shows a schematic representation of a production step for producing a composite component 10 (FIG. 2).
  • a base profile element 12 positioned in a mold cavity 20 of a tool 18 has a coating layer 16.
  • the coating layer 16 was applied to the base profile element 12 in a preceding method step and consists of a plastic B, in the illustrated embodiment, the plastic B is the polyamide PA12 having a melting temperature between 220 0 C and 240 0 C.
  • the thickness of the coating layer 16 can 0.05 - 0.5 mm, preferably about 0.15 mm.
  • the base profile element 12 produced in this way is injection-molded within the tool 18 with a plastic A for the formation of a plastic element 14 (see FIG. 2) molded onto the base profile element 12.
  • a melt 22 of the plastic B fills the mold cavity 20 of the tool 18.
  • the plastic B is a polyamide, namely PA6 and has a melting temperature between 260 0 C and 290 0 C. Due to the process temperature during encapsulation of the base profile element 12 as well as by the occurring process pressures P p , the coating layer 16 is partially melted, resulting in a material connection between the coating layer 16 and the resulting plastic element 14.
  • the basic profile element is a closed metal profile. However, it can also be used open metal profiles, the metal profile can have any conceivable and technically feasible form.
  • FIG. 2 shows a composite component 10 consisting of the metallic base profile element 12, the coating layer 16 resting on the base profile element 12 and the plastic element 14 injection-molded onto the base profile element 12 or the coating layer 16.
  • the enlargement of a partial section of the composite component 10 can be seen in that an intimate, material-locking connection results between the coating layer 16 and the plastic element 14, which overall leads to a very strong composite adhesion between the elements of the composite component 10.
  • the schematically illustrated composite component 10 is a composite component for use in the automotive industry.

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

Abstract

La présente invention a pour objet un élément composite, en particulier un élément composite pour un véhicule automobile, qui se compose d'au moins un élément profilé métallique de base (12) et d'au moins un élément en matière plastique (14) composé d'une matière plastique A et moulé par injection sur l'élément profilé de base (12), l'élément profilé de base (12) comportant au moins partiellement une couche de revêtement (16) composée d'une matière plastique B. La matière plastique A présente une température de fusion plus élevée que la matière plastique B et les matières plastiques A et B sont sélectionnées dans un groupe constitué par des matières plastiques apparentées, présentant des propriétés chimiques similaires. La présente invention concerne en outre un procédé pour fabriquer un élément composite, en particulier un élément composite d'un véhicule automobile, se composant d'au moins un élément profilé métallique de base (12) et d'au moins un élément en matière plastique (14) moulé par injection sur l'élément profilé de base (12).
PCT/EP2008/007175 2007-11-13 2008-09-03 Elément composite et procédé pour fabriquer un élément composite WO2009062560A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007054004.5 2007-11-13
DE200710054004 DE102007054004A1 (de) 2007-11-13 2007-11-13 Verbundbauteil und Verfahren zur Herstellung eines Verbundbauteils

Publications (1)

Publication Number Publication Date
WO2009062560A1 true WO2009062560A1 (fr) 2009-05-22

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PCT/EP2008/007175 WO2009062560A1 (fr) 2007-11-13 2008-09-03 Elément composite et procédé pour fabriquer un élément composite

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DE (1) DE102007054004A1 (fr)
WO (1) WO2009062560A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109483794A (zh) * 2017-09-11 2019-03-19 南京钧乔行汽车灯具有限公司 一种含内嵌件的汽车灯具壳体的双色注塑方法
US10494848B2 (en) 2014-03-10 2019-12-03 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Bamberg Method for producing a catch for a window lifting device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011014849A1 (de) * 2011-03-24 2012-09-27 Hbpo Gmbh Fahrzeugbauteil und Verfahren zu dessen Herstellung
DE102011015071A1 (de) * 2011-03-24 2012-09-27 Thyssenkrupp Steel Europe Ag Verbundwerkstoff und Strukturbauteil für ein Kraftfahrzeug
EP3031862B1 (fr) 2014-12-11 2018-08-29 Ems-Patent Ag Structure a plusieurs couches ayant au moins une couche metallique et au moins une couche polyamide

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2324839A (en) * 1997-03-18 1998-11-04 Nsk Ltd Seal for rolling bearing
JPH1119967A (ja) * 1997-06-30 1999-01-26 Dainippon Printing Co Ltd 射出成形同時絵付け装置及びその方法
DE10008375A1 (de) * 2000-02-23 2001-09-06 Ticona Gmbh Verbundkörper, Verfahren zu deren Herstellung und Verwendung
WO2001072495A1 (fr) * 2000-03-24 2001-10-04 Basf Aktiengesellschaft Element de construction composite et son procede de production
US20050001354A1 (en) * 2003-07-02 2005-01-06 Martin Klocke Process for the production of a composite article
WO2005061203A2 (fr) * 2003-12-22 2005-07-07 Robert Bosch Gmbh Composant et son procede de production
EP1640134A1 (fr) * 2004-09-24 2006-03-29 EMS-Chemie AG Procédé de moulage par injection pour produire des composantes en matière plastique

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2324839A (en) * 1997-03-18 1998-11-04 Nsk Ltd Seal for rolling bearing
JPH1119967A (ja) * 1997-06-30 1999-01-26 Dainippon Printing Co Ltd 射出成形同時絵付け装置及びその方法
DE10008375A1 (de) * 2000-02-23 2001-09-06 Ticona Gmbh Verbundkörper, Verfahren zu deren Herstellung und Verwendung
WO2001072495A1 (fr) * 2000-03-24 2001-10-04 Basf Aktiengesellschaft Element de construction composite et son procede de production
US20050001354A1 (en) * 2003-07-02 2005-01-06 Martin Klocke Process for the production of a composite article
WO2005061203A2 (fr) * 2003-12-22 2005-07-07 Robert Bosch Gmbh Composant et son procede de production
EP1640134A1 (fr) * 2004-09-24 2006-03-29 EMS-Chemie AG Procédé de moulage par injection pour produire des composantes en matière plastique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10494848B2 (en) 2014-03-10 2019-12-03 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Bamberg Method for producing a catch for a window lifting device
CN109483794A (zh) * 2017-09-11 2019-03-19 南京钧乔行汽车灯具有限公司 一种含内嵌件的汽车灯具壳体的双色注塑方法

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