EP2027195A1 - Élément renforçant sous forme de couche - Google Patents

Élément renforçant sous forme de couche

Info

Publication number
EP2027195A1
EP2027195A1 EP07725381A EP07725381A EP2027195A1 EP 2027195 A1 EP2027195 A1 EP 2027195A1 EP 07725381 A EP07725381 A EP 07725381A EP 07725381 A EP07725381 A EP 07725381A EP 2027195 A1 EP2027195 A1 EP 2027195A1
Authority
EP
European Patent Office
Prior art keywords
adhesive layer
reinforcing member
member according
contact
layer
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Withdrawn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
EP07725381A
Other languages
German (de)
English (en)
Inventor
Karl Wesch
Matthias JÄHNICHEN
Jochen Becker
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
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 Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP2027195A1 publication Critical patent/EP2027195A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed 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
    • B62D29/002—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material a foamable synthetic material or metal being added in situ

Definitions

  • the invention relates to a layered reinforcing member based on a sheet as a carrier material and a thermally expandable and curable adhesive layer, and a method for stiffening and / or reinforcing body components.
  • EP-A-298024 describes a method for stiffening sheet metal and plastic moldings with the aid of a single-layer or multi-layer planar stiffening body which has at least one layer of a thermosetting resin.
  • This stiffening body is initially subjected to a first heat treatment, in which at least one surface of the stiffening body becomes tacky by this first heat treatment. Subsequently, the stiffening body with the sticky surface is to be applied to the element to be stiffened and then the stiffening body is to be subjected to a second heat treatment until all layers of the stiffening body have cured.
  • a layer of the reinforcing body is constructed of thermosetting epoxy resins and optionally contains glass fiber fabric.
  • Second Layer which is to become tacky in the first heat treatment, an epoxy-based, possibly polyurethane or copolyester-based hot melt adhesive is proposed.
  • this layer is to consist of a thermally shrinking film, so that after shrinkage, a sticky layer is exposed.
  • EP 0053361 A1 describes an adhesive layer material for reinforcing metal sheets comprising a first epoxy resin layer and a second epoxy resin layer laminated to the first epoxy resin layer, the first epoxy resin layer having a modulus of elasticity sufficient to allow stiffening of a metal plate after curing whereas the second epoxy resin layer after curing by heating should have an modulus of elasticity which is insufficient to cause stiffening of the metal plate to be stiffened. This is intended to cause the stress occurring due to the shrinkage in the curing of the high-modulus layer to be reduced, so that the warpage of the surface of the metal layer to be stiffened is reduced.
  • WO 99/50057 proposes a three-layer stiffening material which is made up of two polymer layers and one stiffening layer.
  • the polymer layer facing the substrate to be stiffened should be a flexible foam layer after curing, while the outer layer arranged on the flexible foam layer is a layer of rigid foam.
  • the third layer should be a film or fiberglass layer or a backing to effect additional stiffening. According to the teaching of this document, the stress caused by the shrinkage of the hard layer during curing should be kept away from the substrate to be stiffened by this layer arrangement.
  • Multilayer laminates of at least two thermally curable binder layers and two layers of textile fabrics, which should be suitable for stiffening sheet-like substrates.
  • the multilayer system is intended to include a binder layer facing the substrate to be stiffened, followed by a fibrous textile fabric layer on which a second binder layer is disposed. In turn, a second fiber-containing textile fabric layer is applied to this second binder layer.
  • the binder layer facing the substrate to be stiffened is adhesively bonded to the substrate to be stiffened, and is intended to have either a same or a lower modulus of elasticity have as the second binder layer facing away from the substrate to be stiffened.
  • Such multilayer laminates are suitable according to the teaching of this document for the marking-free stiffening of thin-walled substrates, in particular large-scale parts in vehicle construction such as doors, roof parts, engine compartment covers, trunk lids and the like.
  • Frame stiffening or cavity stiffening systems usually contain metallic or plastic supports and a thermally expandable and curable binder system or are formed as a strapless molded body directly from the thermally expandable and curable binder. They are usually fastened during a suitable process step with mechanical fasteners in the cavity still open at that time.
  • Such stiffening foamable reinforcing members are described, for example, in the following references: US4901500, US4908930, US4751249, US4978562, US4995545, US5124186, US5575526, US5755486, US4923902, US4922596, US4861097, US4732806, US4695343, US4610836, US6068424, US6058673, US6003274, US5992923, US5888600, US6092864, US6079180 and US5884960.
  • the aforementioned reinforcing components generally comprise dry, non-adhesive parts, which are introduced with a retaining clip in the body cavities and mechanically fixed there.
  • Reinforcement components are also known, which are constructed on self-adhesive structural foam formulations and which are often provided with a fabric film in order to increase the buckling resistance and buckling strength.
  • a fabric film in order to increase the buckling resistance and buckling strength.
  • melt films in a further application, which is preferably used to build a sandwich connection between 2 sheet metal surfaces, one uses melt films as a cover layer for better applicability.
  • a layer-shaped reinforcing member which contains a sheet as a carrier material on which a high-strength, thermally expandable and curable adhesive layer and parallel thereto a contact-sticky adhesive layer is arranged.
  • the carrier material is preferably a flexible to low-strength textile fabric made of glass fibers, polyamide fibers, carbon fibers, steel fibers or aluminum fibers. Particularly preferred are textile fabrics of glass fibers or polyamide fibers.
  • the carrier material may be a plastic film of polyamide, polyimide, polyester or else a metal foil of steel, aluminum or copper.
  • the film thickness of this support material is usually 0.05 to 3 mm, preferably the film thickness is between 0.1 and 1 mm.
  • the contact adhesive layer is built up on rubber compositions. This is preferably a butyl rubber.
  • a particularly preferred contact-sticky material based on butyl rubber is available under the trade name Terostat R 81 from Henkel.
  • the thermally expandable and curable adhesive layer contains at least one liquid reactive epoxy resin, optionally a solid reactive epoxy resin, optionally a flexibilizer, optionally a reactive diluent, if necessary finely divided thermoplastic polymer powder. Furthermore, this composition contains hardeners and / or accelerators and blowing agents. Such thermally expandable curable adhesive compositions suitable for the reinforcing component according to the invention are described, for example, in WO 00/52086 or in WO 2003/054069.
  • Fig. 1 shows the basic layer structure of carrier material and the two adhesive layers
  • FIG. 2 shows a section through a hollow component, in particular a section through a
  • FIG. 3 is a plan view of the reinforcing member according to the invention.
  • Fig. 4 is a plan view of a further embodiment of the invention.
  • FIG. 5 shows a cross section through the reinforcing component according to FIG. 3.
  • Fig. 1 shows the basic layer structure of a reinforcing member according to the present invention.
  • a strip of a high-strength, thermally expandable and curable adhesive composition (2) is applied on the carrier material (1) .
  • a film of a non-sticky at room temperature melt film (3) is applied on the carrier material (1) .
  • the contact-sticky adhesive layer (4) is applied in strips on the carrier, which is protected by a protective film (5) during storage time from surface contamination.
  • FIG. 2 shows a section through a body part to be stiffened.
  • it is a cross section through a roof rail of a motor vehicle in a schematic representation.
  • the roof rail is composed of 3 sheet metal profiles, the inner panel (6), which will face the passenger compartment of the motor vehicle, the stiffening plate (7) and the outer panel (8), which is positioned in the outer viewing area of the vehicle.
  • the 3 plates are connected together in the final state. This can be done by mechanical joining such as flanging, spot welding or by gluing or by a combination of all 3 attachment methods.
  • the reinforcing component according to the invention After removal of the protective film (5) with the aid of the contact-adhesive layer (4) at the predetermined location of the still available at this time the assembly intermediate plate (7) fixed. Subsequently, the outer panel (8) is joined, wherein the thermally expandable and curable adhesive layer (2) is guided to the correct position. In this state (not shown in FIG. 2), the thermally expandable and curable adhesive layer (2) has not yet expanded and has not cured, but rests with the carrier material (1) as an intermediate layer on the outer panel (8).
  • the adhesive layer (2) is thermally expanded and cured using the process heat of the paint oven for curing the electrodeposition paint, with an adhesive connection to the reinforcing plate (7) is effected.
  • the adhesive layer (2) completely fills the gap between outer panel (8) and reinforcing panel (7).
  • a read-through which would be visible on the outside of the outer sheet 8 is avoided in that the adhesive layer 2 has no rigid adhesive bond with the outer sheet 8 due to the carrier film 1 therebetween ,
  • FIG. 3 shows a plan view of an embodiment according to the invention of the reinforcing component with a glass fiber fabric (1) as the carrier material and the strip of the contact-adhesive layer (4), which is not visible here, since it is covered by the protective film (5).
  • the strip of high strength thermo-expandable and curable adhesive (2) is extruded. This carries on its surface a molten film, which melts when heated in the cathodic oven, so that an adhesive connection of the adhesive layer (2) with the stiffening plate (7) can be ensured.
  • FIG. 4 shows a further special embodiment of the reinforcing component according to the invention, in which the high-strength, thermally expandable and curable adhesive layer (2) has been extruded in the middle onto the carrier (1) made of glass fiber fabric and spaced apart on both sides by a contact-sticky adhesive layer (4) is arranged, which is covered in each case with a protective film (5).
  • a protective film (5) Such an embodiment allows the positioning and fixing of the reinforcing member in special versions with 2 robeklebrigen strips (4) after removal of the protective films (5).
  • FIG. 5 shows a cross-sectional view of the reinforcing component according to the invention according to FIG. 3, perpendicular to the plan view shown in FIG. 3.
  • the adhesive layer (2, 2 ') is in turn extruded onto the support (1).
  • This is a special form of the adhesive layer, which is more strongly contoured on one side at the point (2 ') and thus deviates from the general rectangular cross section of the adhesive layer.
  • Such a shape of the adhesive layer (2) allows an optimized adaptation and space filling of the gap between the outer plate (8) and the stiffening plate (7).
  • the contact-sticky layer (4) is in turn covered with a protective film (5).
  • the reinforcing member according to the invention of contact adhesive, structurally strong high-strength foamable adhesive and fabric-shaped carrier allows the attachment of the reinforcing member to body components that do not allow Verklippsung, Verschweizung or other mechanical fastening.
  • the foamable adhesive is shielded from the visible surface of the outer panel by the outer sheet and the expandable adhesive layer arranged carrier layer, so that no marks are made in the field of view of the outer panel.
  • the contour of the adhesive layer can be optimally adapted to the requirements, d. H. it can be designed as a flat rectangular profile or as a contoured profile.
  • the reinforcing component according to the invention can be produced inexpensively by double extrusion of the high-strength adhesive layer (2) and, parallel to this, either the contact-adhesive adhesive layer (4) which is adjacent or at a corresponding distance. Both layers can be executed as flat rectangular extrudates or as contour extrudates, depending on requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un élément renforçant sous forme de couche, comprenant une structure plate en tant que matériau support, sur laquelle une couche adhésive de grande résistance, durcissable et expansible thermiquement est disposée, une couche adhésive, collante par contact, étant disposée en parallèle, le matériau support ayant de préférence une découpe rectangulaire et la couche adhésive collante par contact et la couche adhésive durcissable et expansible thermiquement étant disposées sur le matériau support sous forme de bandes parallèles sous forme d'extrudats plats suivant les contours ou rectangulaires. L'invention concerne également des procédés de durcissement et/ou de renforcement d'éléments de carrosseries par disposition d'un tel élément renforçant.
EP07725381A 2006-06-09 2007-05-18 Élément renforçant sous forme de couche Withdrawn EP2027195A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610027231 DE102006027231A1 (de) 2006-06-09 2006-06-09 Schichtförmiges Verstärkungsbauteil
PCT/EP2007/004473 WO2007140870A1 (fr) 2006-06-09 2007-05-18 Élément renforçant sous forme de couche

Publications (1)

Publication Number Publication Date
EP2027195A1 true EP2027195A1 (fr) 2009-02-25

Family

ID=38472870

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07725381A Withdrawn EP2027195A1 (fr) 2006-06-09 2007-05-18 Élément renforçant sous forme de couche

Country Status (3)

Country Link
EP (1) EP2027195A1 (fr)
DE (1) DE102006027231A1 (fr)
WO (1) WO2007140870A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150084972A (ko) 2012-11-14 2015-07-22 제피로스, 인크. 팽창 패널 스티프너
DE102013012206A1 (de) 2013-07-16 2015-01-22 Lohmann Gmbh & Co. Kg Verfahren zur Herstellung von Formteilen mit Hilfe von Klebestreifen
CN107810108A (zh) 2015-05-14 2018-03-16 泽菲罗斯有限公司 局部面板加强件
JP6729762B1 (ja) * 2019-05-28 2020-07-22 Ｊｆｅスチール株式会社 自動車用衝突エネルギー吸収部品およびその製造方法
US20220242492A1 (en) * 2019-07-19 2022-08-04 Sika Technology Ag System of a reinforced body element

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2200975C (fr) * 1994-09-29 2006-11-07 Michael A. Johnson Materiau multicouche expansible

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007140870A1 *

Also Published As

Publication number Publication date
WO2007140870A1 (fr) 2007-12-13
DE102006027231A1 (de) 2007-12-13

Similar Documents

Publication Publication Date Title
DE69914753T2 (de) Verstärkungslaminat
DE102006058602B4 (de) Verfahren zur Herstellung einer B-Säulenanordnung eines Kraftfahrzeugs
DE10301520B4 (de) Kunststoff-Metall-Verbundbauteil
DE102006058601B4 (de) Verfahren zur Herstellung eines Karosserie- und Fahrwerkbauteils sowie Karosserie- und Fahrwerkbauteil
DE60122184T2 (de) Verstärkung für eine säule eines kraftfahrzeugs
EP1557342B1 (fr) Construction en coquille pour ensemble de carrosserie de véhicule automobile
EP1556213B1 (fr) Stratifies multicouches de renforcement
EP2027195A1 (fr) Élément renforçant sous forme de couche
DE102005056460A1 (de) Verfahren zum Herstellen eines Hybridbauteils
DE102012205594A1 (de) Fügeverbundteile und Verfahren zur Herstellung davon
EP1693190A1 (fr) Revêtement pour atténuer le vrombissement de pièces de construction et méthode d'obtention d'un tel revêtement
WO2005073058A1 (fr) Composant hybride
DE102007017289A1 (de) Verfahren zum Herstellen eines Blechstrukturteiles
DE3029058A1 (de) Verfahren zum herstellen von tiefziehteilen, insbesondere fuer karosserien von kraftwagen
DE19703505A1 (de) Farbiges Karosserieteil
DE10060816A1 (de) Mehrschichtiger Formkörper mit lokal begrenzten Verstärkungselementen
DE19753110B4 (de) Verfahren zur Herstellung einer Mehrfachblechstruktur
EP2327545B1 (fr) Composant composite pour véhicules ainsi que procédé de fabrication d'un tel composant composite
DE102014013211A1 (de) Verfahren zur Herstellung einer Falzverbindung zwischen einem Innenteil und einem Außenteil
DE10120121A1 (de) Zu einem Formbauteil umformbare Blechplatine
DE102006055665A1 (de) Verfahren zur Montage oder Reparatur von Bauteilen, vorzugsweise für Kraftfahrzeuge, Verfahren zur Vorbehandlung für eine Montage oder Reparatur, Kraftfahrzeug mit zumindest einem ersten und einem zweiten Bauteil sowie vorbehandeltes Bauteil
DE102018121336B4 (de) Verfahren zur Herstellung eines Faserverbundbauteils
EP1880882A2 (fr) Procédé destiné à la fabrication d'un collage, toit de véhicule doté de tissu textile et composant de véhicule doté de matière textile
DE102004059696A1 (de) Lackierte faserverstärkte Kunststoff-Bauteile und Lackierverfahren
DE19735917B4 (de) Selbsttragendes Innenraum-Verkleidungsteil für ein Fahrzeug und Verfahren zur Herstellung

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

17P Request for examination filed

Effective date: 20080726

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

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: 20111201