WO2019215020A1 - Produit semi-fini hybride en acier et matiere plastique ayant des propriétés de blindage - Google Patents

Produit semi-fini hybride en acier et matiere plastique ayant des propriétés de blindage Download PDF

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Publication number
WO2019215020A1
WO2019215020A1 PCT/EP2019/061331 EP2019061331W WO2019215020A1 WO 2019215020 A1 WO2019215020 A1 WO 2019215020A1 EP 2019061331 W EP2019061331 W EP 2019061331W WO 2019215020 A1 WO2019215020 A1 WO 2019215020A1
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WIPO (PCT)
Prior art keywords
product according
semifinished product
plastic
dynamic
metal sheet
Prior art date
Application number
PCT/EP2019/061331
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German (de)
English (en)
Inventor
Fabian Schongen
Vanessa Wieschalla
Lothar Patberg
Dieter Kalemba
Original Assignee
Thyssenkrupp Ag
Thyssenkrupp Steel Europe Ag
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Application filed by Thyssenkrupp Ag, Thyssenkrupp Steel Europe Ag filed Critical Thyssenkrupp Ag
Publication of WO2019215020A1 publication Critical patent/WO2019215020A1/fr

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    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/18—Handling of layers or the laminate
    • B32B38/1866—Handling of layers or the laminate conforming the layers or laminate to a convex or concave profile
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/06—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/082—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising vinyl resins; comprising acrylic resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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    • B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
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    • B32B15/00—Layered products comprising a layer of metal
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    • B32B15/098—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
    • 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
    • B29C45/14811—Multilayered articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/002—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor characterised by the choice of 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/12—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor of articles having inserts or reinforcements
    • 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
    • B29K2007/00—Use of natural rubber as moulding material
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    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
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    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
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Definitions

  • the invention relates to a thermoformable, platinen- or band-shaped semi-finished product for producing a three-dimensionally shaped hybrid component in metal / plastic composite, the at least one electromagnetic radiation, dynamic or static electrical and / or dynamic or static magnetic fields shielding, platinen- or band-shaped sheet metal and mini- at least one has on the metal sheet cohesively applied thermoplastic, thermosetting or elastomeric plastic layer, wherein the metal sheet has a certain composition tion and the semifinished product a screen factor S (v) of 1, 00 to 120.00 dB in a dynamic, magnetic field or a dynamic, electromagnetic field having a frequency v of 0.001 to 1000 kHz, the screen factor S (v) from the quotient of the field strength measured at the location of the sink with or without sink between the source and source befindli chem shielding material is determined.
  • the present invention relates to a method for producing a three-dimensionally shaped hybrid component in the metal / plastic composite, wherein a semifinished product according to the invention is used, wherein the plastic layer formed as a coupling layer by injection molding, compression molding, thermal pressing or extruding a three-dimensional plastic structural body integrally formed, the use of the semifinished product according to the invention for producing a three-dimensionally shaped hybrid component as a component for a vehicle, aircraft, ship, rail vehicle or mechanical engineering, in the energy industry or construction, and a method for shielding electromagnetic radiation, dynamic or static electrical and / or dynamic or static magnetic fields, characterized in that the source and / or sink are at least partially surrounded by a semifinished product according to the invention.
  • lightweight components are used to a great extent, which in addition to a low weight must additionally have high strengths and stiffnesses.
  • corresponding lightweight components in a vehicle body serve as crash-relevant structural components, such as a B-pillar, a bumper or a side impact beam.
  • One approach to achieving such lightweight components is to combine different materials with each other.
  • materials which have the abovementioned properties are to be provided with additional functions, for example, the property against electromagnetic radiation.
  • radiation dynamic or static electrical and / or dynamic or static magnetic fields shield.
  • EMC electromagnetic compatibility
  • US 2007/0134452 A1 discloses, for example, a container which can be used in rail vehicles or motor vehicles. It is made of shielding metal and contains a plastic insert. The metal container has at the opening a edge which is bent over in order to fix the plastic insert.
  • WO 2008/008693 A2 discloses a cover plate which contains a metal sheet and a plastic layer and is used to shield electromagnetic radiation.
  • EP 2 597 740 A1 discloses a material for shielding cables, through which electrical current flows, against electromagnetic radiation.
  • the advantage of this material is that it is flexible and therefore the sheathed cable also remains flexible.
  • the deep-drawable, platinum-shaped or strip-shaped semi-finished product according to the invention for producing a three-dimensionally shaped hybrid component in the metal / plastic composite which shields at least one electromagnetic radiation, dynamic or static electrical and / or dynamic or static magnetic fields , pla tin or strip-shaped metal sheet and at least one cohesively applied to the metal sheet thermoplastic, thermosetting or elastomeric plastic layer, where in the metal sheet has the following composition (in each case in wt .-%): 0.001 to 2.1 C,
  • Residual Fe and unavoidable impurities and the semi-finished product has a screen factor S (v) of 1.00 to 120.00 dB for a dynamic, magnetic field or a dynamic electromagnetic field with a frequency v of 0.001 to 1000 kHz, the screen factor S (v) being determined from the quotient of the field strength measured at the location of the sink with or without shielding material between sink and source.
  • the objects of the invention are achieved by methods for producing a three-dimensionally shaped hybrid component in the metal / plastic composite, by using the semifinished product according to the invention for shielding electromagnetic radiation, dynamic or static electrical and / or dynamic or static magnetic fields.
  • the present invention electromagnetic radiation, dynamic or static electrical and / or dynamic or static magnetic fields shielding, platinum or strip-shaped metal sheet has the following composition (in each case in wt .-%):
  • Carbon (C) is present in an amount of 0.001 to 2.1 wt%, preferably 0.001 to 0.800 wt%, more preferably 0.002 to 0.700 wt%, most preferably 0.002 to 0.650 wt% ,
  • Manganese (Mn) is present in an amount of 0.001 to 30.00 wt%, preferably 0.01 to 25.00 wt%, more preferably 0.1 to 23.00 wt%.
  • Silicon (Si) is in an amount of 0.001 to 8.00 wt .-%, preferably 0.001 to 4.00 wt .-%, particularly preferably 0.01 to 3.5 wt .-%, most preferably 0.02 to 3.4 wt .-%, before.
  • Aluminum (AI) is in an amount of 0.01 to 4.00 wt .-%, preferably 0.01 to 2.00 wt .-%, particularly preferably 0.02 to 1, 8 wt .-%, very particularly preferably 0.02 to 1, 6 wt .-%, before.
  • Chromium (Cr) is present in an amount of 0.001 to 1, 00 wt .-%, preferably 0.01 to 0.5 wt .-%, more preferably 0.01 to 0.4 wt .-%, before.
  • the metal sheet used in accordance with the invention can have one or more alloying elements from the following group comprising As, B, Cu, Ni, Mo, Ti, V, S, P and Sn.
  • the present invention therefore preferably relates to the semifinished product according to the invention, wherein the metal sheet used contains at least one alloying element selected from the group consisting of As, B, Cu, Ni, Mo, Ti, V, S, P and Sn.
  • the said additional alloying elements are present, they are furthermore preferably present in the amounts mentioned below.
  • Unavoidable impurities in the sense of the present invention are, for example, O, N, Nb or Sb.
  • the production of the metal sheet used according to the invention can be carried out by methods known to the person skilled in the art.
  • a metal sheet a hot strip or a cold strip, more preferably as a coil or as a board, are used.
  • the metal sheet used in accordance with the invention has a microstructure comprising 0 to 100% by weight, preferably 5 to 95% by weight, ferrite, 0 to 95% by weight, preferably 0 to 60% by weight, of bainite , 0 to 20 wt .-%, preferably 5 to 20 wt .-% pearlite, 0 to 100 wt .-%, preferably 3 to 35 wt .-%, martensite or up to 100 wt .-% martensite, 0 to 20 Wt .-%, preferably 2 to 15 wt .-%, retained austenite and optionally carbides, the sum in each case 100 wt .-% results.
  • the metal sheet used according to the invention has particularly good mechanical properties, in particular with regard to yield strength, ductility, tensile strength and / or elongation at break.
  • the metal sheet used according to the invention contains no austenitic composition.
  • this means that the metal sheet used in accordance with the invention has a microstructure which preferably contains less than 8% by weight austenite, more preferably less than 5% by weight, very preferably less than 2% by weight. -%, contains.
  • the absence of austenite enables the good screening properties according to the invention. It has surprisingly been found that the presence of austenite worsens the shielding properties, so that preferably no austenite is present in the metal sheet used according to the invention.
  • the metal sheet used according to the invention has, for example, a yield strength of 100 to 1900 MPa.
  • the metal sheet used according to the invention has, for example, a tensile strength of at least 200 MPa, preferably at least 400 MPa, particularly preferably at least 750 MPa.
  • the metal sheet used according to the invention has, for example, an elongation at break A80 of 2 to 45%.
  • the metal sheet used according to the invention has a particle size of 2 to 200 ⁇ m, preferably 2 to 100 ⁇ m, particularly preferably 5 to 30 ⁇ m.
  • this grain size which is preferred according to the invention, contributes to improving the magnetic properties.
  • the semifinished product according to the invention may also comprise a metal sheet of another metal, for example of magnesium or aluminum.
  • the semifinished product according to the invention has at least one thermoplastic, thermoset or elastomeric plastic layer cohesively applied to the metal sheet.
  • the at least one thermoplastic plastic is preferably selected from the group consisting of polyolefins, preferably polyethylene (PE), polypropylene (PP), polybutylene (PB) and polyisobutylene (PIB), particularly preferably PE, polyamides (PA), polycarbonates ( PC), thermoplastic polyesters, thermoplastic polyurethanes (PU), polysulfides (PS), polyether ether ketones (PEEK), polyarylene, aromatic polyesters, polyaramides, polyaramid fibers, heterocyclic polymers, liquid crystal polymers (LCP Liquid Crystalline Polymers), fluoropolymers, Perfluoroxyalkanen, polyphenylenes, functionalized variants of the said polymers and mixtures thereof, preferably a compound having at least two of said polymers, more preferably at least one polyolefin and at least one polyamide.
  • PE polyethylene
  • PP polypropylene
  • PB polybutylene
  • PIB polyisobutylene
  • PE polyamides
  • polyolefins which can be used according to the invention are selected from the group consisting of acrylonitrile-butadiene-styrenes (ABS), polymethyl (meth) acrylates (PM (M) A), polyethylenes (PE), polypropylenes (PP), polystyrenes (US Pat. PS), polyvinyl chlorides (PVC) and mixtures thereof.
  • ABS acrylonitrile-butadiene-styrenes
  • PM (M) A polymethyl (meth) acrylates
  • PE polyethylenes
  • PP polypropylenes
  • PVC polyvinyl chlorides
  • polyesters which can be used according to the invention are selected from the group consisting of polyethylene terephthalate (PET), polylactates (PLA) and mixtures thereof.
  • polyaramides which can be used according to the invention are selected from the group consisting of poly-m-phenylene isophthalamide (PMI), polyaramid fibers and mixtures thereof.
  • heterocyclic polymers which can be used according to the invention are selected from the group consisting of polyimides, polybenzimidazoles, polyetherimides and mixtures thereof.
  • the present invention therefore preferably relates to the semifinished product according to the invention, wherein the at least one thermoplastic plastic is selected from the group consisting of polyolefins, polyamides (PA), polycarbonates (PC), thermoplastic polyesters, thermoplastic polyurethanes (PU), polysulfides ( PS), polyether ether ketones (PEEK), polyarylene, aromatic polyesters, polyaramides, polyaramid fibers, heterocyclic polymers, liquid crystal polymers (LCP Liquid Crystalline Polymers), fluoropolymers, perfluorooxyalkanes, polyphenylenes, functionalized variants of the polymers mentioned and mixtures thereof ,
  • the at least one thermosetting plastic is selected from the group consisting of epoxy resins (EP), urea-formaldehyde resins (UF), phenol-formaldehyde resins (PF), melamine-formaldehyde resins (MF), melamine / phenol formaldehydes (MPF), thermosets
  • the present invention therefore preferably relates to the semi-finished product according to the invention, wherein the at least one thermosetting plastic is selected from the group consisting of epoxy resins (EP), urea-formaldehyde resins (UF), phenol-formaldehyde resins (PF), melamine-formaldehyde resins (MF) , Melamine / phenol formaldehydes (MPF), thermosetting polyesters (PES), polyurethanes (PUR), unsaturated polyesters (UP), partially crosslinked (bi-stage) thermoset polymers, functionalized variants of the polymers mentioned and mixtures thereof.
  • the at least one thermosetting plastic is selected from the group consisting of epoxy resins (EP), urea-formaldehyde resins (UF), phenol-formaldehyde resins (PF), melamine-formaldehyde resins (MF) , Melamine / phenol formaldehydes (MPF), thermosetting polyesters (PES), polyurethanes (
  • the partially cross-linked (bi-stage) polymers are finally given their final properties by chemically, thermally and / or photolytically initiated polymerization.
  • the at least one elastomeric plastic selected from the group consisting of natural rubbers (NR), silicone rubbers (SIR), silicone butadiene rubbers (SBR), polyvinyl butyrals (PVB), polyisobutylenes (PIB), isoprene rubbers (IR ), Ethylene vinyl acetates (EVA), ethylene-propylene-diene rubbers (EPDM), ethylene-propylene copolymers (EPM), ethylene-ethyl acrylate copolymers (E / EA), chloroprene rubbers (CR), butadiene rubbers (BR), acrylonitrile / methyl methacrylates (A / MMA), butyl rubbers (IIR), styrene-butadiene styrenes (SBS), polyether block amides (PEBA), functionalized variants, and mixtures thereof.
  • NR natural rubbers
  • SIR silicone rubbers
  • SBR silicone butadiene rubbers
  • the present invention therefore preferably relates to the semifinished product according to the invention, wherein the at least one elastomeric plastic is selected from the group consisting of natural rubbers (NR), silicone rubbers (SIR), silicone butadiene rubbers (SBR), polyvinyl butyrals (US Pat.
  • NR natural rubbers
  • SIR silicone rubbers
  • SBR silicone butadiene rubbers
  • PVB polyisobutylenes
  • PIB polyisobutylenes
  • IR isoprene rubbers
  • EVA ethylene vinyl acetates
  • EPDM ethylene-propylene copolymers
  • EPM ethylene-propylene copolymers
  • E / EA Chloroprene rubbers
  • BR butadiene rubbers
  • IIR styrene-butadiene styrenes
  • PEBA polyether block amides
  • the cohesive application of the at least one thermoplastic, thermosetting or elastomeric plastic layer on the metal sheet can in principle be carried out according to all methods known to the person skilled in the art.
  • the application is carried out by continuous or dis-continuous process, wherein steel strips and / or sheets can be processed. Exemplified by his method using a plate press, a lamination, a calender, a double belt press or a belt coater. Such methods are known per se to the person skilled in the art and described in WO 2015/032623 A1.
  • the present invention relates to the semifinished product according to the invention, wherein the side of the metal sheet on which the thermoplastic, thermoset or elastomeric plastic layer is applied has a surface which improves the adhesion of the plastic layer.
  • the metal sheet may be subjected to a corresponding surface treatment.
  • the surface treatment may in particular be a plasma treatment, plasma coating, corona treatment or the application of a layer, in particular a primer layer, in a coil coating, dip or dropcoating process.
  • the semifinished product according to the invention has a screen factor S (v) of 1.00 to 120.00 dB, preferably 10.00 to 120.00 dB for a dynamic, magnetic field or a dynamic electromagnetic field with a frequency v of 0.001 to 1000 kHz, preferably 0.1 to 400 kHz, particularly preferably 0.1 to 200 kHz, on.
  • the present invention relates to the semifinished product according to the invention, wherein screen factor S (v) according to the equation of the formula (I) where U 2 (v) is the voltage induced in the second coil, li (v) the current flowing in the first coil, and l 10 (v) the current in the first coil and U 20 (v) the voltage in the first coil second coil, each without introduced sample, are.
  • the screen factor S (v) is preferably determined by measuring the voltage U 2 (v) in a second coil induced by a current li (v) in a first coil, while a sample of the shielding monolithic Material between the first and the second coil is located and the coils are at a distance of at most 40 mm.
  • the screen factor S (v) is particularly preferably calculated according to the equation of the formula (I)
  • Method determines comprising at least the following steps:
  • the metal sheet used according to the invention can be used uncoated.
  • the metal sheet used according to the invention is used coated in a preferred embodiment.
  • Corresponding coatings which protect against corrosion in particular, are known per se to a person skilled in the art and are, for example, inorganic coatings such as metals or ceramics or organic coatings based on polymers.
  • the present invention therefore preferably relates to the semi-finished product according to the invention, which contains a metal sheet which has a surface coating.
  • the coating can be applied to the metal sheet used according to the invention in general by all methods known to those skilled in the art, for example electrolytic coating, hot-dip process or vapor deposition.
  • the coating can be present on one or both sides. If the metal sheet present in the shielding semifinished product according to the invention is provided with a corresponding surface coating and used, it is advantageously better protected against corrosion.
  • the at least one metal sheet of the semifinished product according to the invention has, for example, a thickness in the range of 0.1 to 2.5 mm, preferably 0.1 to 1.0 mm, particularly preferably in the range of 0.1 to 0.5 mm ,
  • thermoplastic, thermoset or elastomeric plastic layer applied cohesively to the metal sheet may be somewhat thinner. It has, for example, a thickness in the range from 0.01 to 1.2 mm, preferably 0.05 to 1.0 mm, particularly preferably in the range from 0.05 to 0.4 mm.
  • thermoplastic, thermosetting or elastomeric plastic layer serving as a coupling layer flows during deep drawing of the semifinished product according to the invention with the metal sheet and does not lose its liability.
  • thermoplastic or thermosetting plastic layer (coupling layer) of the semifinished product according to the invention is that it can be reliably bonded with a large number of other plastics without application of adhesive.
  • the energy of the plastic melt is used for activating the surface of the coupling layer and producing the material bond. After cooling the melt is a perfect bond between the coupling layer and the molded plastic.
  • the molded plastic may not only be thermoplastic material but also thermoset plastic and / or a plastic material in the field of elastomers.
  • the semifinished product according to the invention makes it possible to considerably reduce the work steps to be performed at the site of an automobile manufacturer or component supplier for producing a three-dimensionally shaped hybrid component.
  • the automobile manufacturer or component supplier with the semifinished product according to the invention has the option of designing a three-dimensionally shaped hybrid component by the following Produce process steps:
  • An advantageous embodiment of the semifinished product according to the invention is characterized in that the plastic layer (coupling layer) does not completely cover the side of the metal sheet on which it is applied, but partially covers it.
  • the plastic layer (coupling layer) does not completely cover the side of the metal sheet on which it is applied, but partially covers it.
  • This embodiment is particularly useful if the hybrid component to be produced, for example, only partially has a strength and / or stiffness-increasing rib structure made of plastic.
  • One or more larger surface areas of the metal sheet, which should not have a fin structure after completion of the hybrid component, can thus remain uncoated during the coating of the metal sheet with the at least one thermoplastic or thermosetting plastic layer (coupling layer). This saves material costs and contributes to an optimized weight saving with sufficient strength or stiffness properties and good shielding effect.
  • thermoplastic, thermoset or elastomeric plastic layer is made double, wherein between the two plastic layers, a, in particular thermoplastic, foam layer is arranged. It has been shown that the intermediate arrangement of a, in particular thermoplastic, foam layer can contribute significantly to the weight reduction of the hybrid component with constant strength and rigidity.
  • thermoplastic, thermoset or elastomeric plastic layer is present on both sides of the metal sheet.
  • the plastic layer (coupling layer) of the semifinished product according to the invention is partially coated with at least one organic sheet.
  • the metal sheet may also be coated on its side facing away from the plastic layer (coupling layer) with at least one organic sheet.
  • This refinement also allows the strength and rigidity of the hybrid component to be produced to be significantly increased while the overall weight remains constant or even reduced and the shielding effect is evenly or even increased.
  • the organic sheet may be coated with at least one second metal sheet on its side facing away from the metal sheet. From such a semi-finished product, it is possible to produce particularly lightweight and at the same time very strong and stiff hybrid components with a correspondingly shielding effect, in particular if the organic sheet contains carbon fibers according to a preferred embodiment.
  • the second metal sheet may be coated on the outside with a thermoplastic or duroplastic plastic layer, which is likewise designed as a coupling layer for the cohesive, adhesive-free bonding of at least one structural body made of plastic or to be produced.
  • a semi-finished product designed in accordance with the invention it is advantageously possible to produce hybrid components without an application of adhesive, the structural bodies produced on both sides of plastic, in particular ribbed bodies.
  • the metal sheet is coated on its side facing away from the plastic layer with a second thermoplastic or thermosetting plastic layer, which is also used as a coupling layer.
  • Layer for cohesive, adhesive-free connection of at least one made of plastic or manufactured structural body is formed.
  • hybrid components which have structural bodies produced on both sides of plastic, in particular ribbed bodies, can be produced without application of adhesive.
  • the second plastic layer (coupling layer) can cover the entire surface of the metal sheet on which it is applied, or partially cover it.
  • the partial coating of the metal sheet by the second plastic layer is expedient, for example, if the hybrid component to be produced on the corresponding side of the metal sheet has only partially a rib structure made of plastic, which is bonded to the metal sheet without adhesive via the partial coupling layer.
  • a further advantageous embodiment of the semifinished product according to the invention is that the second plastic layer is coated on its side facing away from the metal sheet with a second metal sheet.
  • the second metal sheet may be coated on its side facing away from the second plastic layer with a third thermoplastic or duroplastic plastic layer as a coupling layer.
  • the respective plastic layer serving as a coupling layer is provided with a peelable protective film.
  • the protective film protects the surface of the coupling layer during the transport of the semifinished product and, if appropriate, also during the shaping of the semifinished product.
  • a complex cleaning of the coupling layer surface of contaminants such as oil or grease can be dispensed with.
  • the protective film as a drawing film can improve the sliding properties of the semifinished product during forming.
  • the semi-finished product according to the invention is preferably formed as a flat product. It can be processed by means of a platen press in a static process, an interval heating press in a discontinuous process or in a continuous process in a laminating plant, for example a double belt press.
  • the process parameters are each set specifically to the semi-finished product to be produced.
  • panels can be cut from this, or the band-shaped semi-finished product can be rolled up into a coil.
  • the present invention also relates to a method for producing a three-dimensionally molded hybrid component in the metal / plastic composite, wherein a semifinished product according to the invention is used, wherein a three-dimensional structural body made of plastic is applied to the plastic layer in the form of a coupling layer by injection molding, compression molding, extrusion or thermal pressing (Plastic structure body) is integrally formed.
  • the semifinished product according to the invention makes it possible to produce a three-dimensionally shaped hybrid component made of metal and plastic with a structural body, preferably a ribbed body, of plastic without application of adhesive. This significantly simplifies the production of the hybrid component.
  • a preferred embodiment of the method according to the invention is that the semifinished product is formed into a three-dimensional shape prior to molding of the structural body.
  • the forming is preferably carried out by deep drawing or roll forming.
  • a further advantageous embodiment of the method according to the invention is characterized in that the semifinished product is reshaped by means of a forming tool which has at least one integrated injection molding cavity and at least one injection molding channel opening into the injection molding cavity.
  • This refinement offers the possibility of reducing the number of process steps for producing the hybrid component in that the forming of the semifinished product or semifinished product blank and the injection molding of the coupling layer for producing the structural body, preferably a ribbed body, are carried out in the same process step.
  • the semifinished product is formed by means of a forming tool which has a profile with at least one integrated cavity for pressing and three-dimensional shaping of a plastics material.
  • This variant also offers the possibility of reducing the number of process steps for producing the hybrid component by carrying out the forming of the semifinished product or semifinished product blank and the pressing of the plastic material to produce the structural body, preferably ribbed body, on the coupling layer in the same process step become.
  • a further variant of the method according to the invention is that the semifinished product is formed by roll forming, wherein during or after the forming of the semifinished product, a rotatable, wheel-shaped tool is used to press the structural body, and the tool with a profile having at least one cavity for pressing and three- dimensional forms of a plastic material is provided.
  • a rotatable, wheel-shaped tool is used to press the structural body, and the tool with a profile having at least one cavity for pressing and three- dimensional forms of a plastic material is provided.
  • At least one integral flange is formed on the hybrid component, which has the thermoplastic layer formed as a coupling layer, whereby a further hybrid component or an organic sheet designed as a metal / plastic composite is welded to the plastic layer by welding is added.
  • hybrid components designed as half shells can be inexpensively assembled into a hollow channel or a closed profile.
  • the welded connection of the hybrid components designed as half-shells or of the organic sheet with a single hybrid component can be produced, for example, by friction welding, spot welding, ultrasonic welding, etc.
  • the semifinished product according to the invention is advantageously used for producing a three-dimensionally shaped hybrid component as a component for a vehicle, aircraft, ship or building. Advantages are in fact obtained by the semifinished product according to the invention wherever, in addition to weight saving, high shielding against electromagnetic radiation, dynamic or static electrical and / or dynamic or static magnetic fields is required, and hybrid components of the type mentioned in US Pat as few process steps to be produced.
  • the present invention therefore also relates to the use of the semifinished product according to the invention for the production of a three-dimensionally shaped hybrid component as a component for a vehicle, aircraft, ship, rail vehicle or in mechanical engineering, in the energy industry or in construction.
  • the present invention also relates to a method for shielding electromagnetic radiation, dynamic or static electrical and / or dynamic or static magnetic fields, characterized in that source and / or sink at least partially with a semifinished product according to the invention or a thereof be surrounded molded component.
  • the source and / or sink of the electromagnetic radiation, the dynamic or static electrical and / or dynamic or static see magnetic fields at least partially surrounded by the semi-finished product according to the invention or at least partially formed therefrom.
  • Partial enclosure is useful or necessary, for example, when the source and / or sink must be accessible during operation, for example, by supply and / or discharge and / or operation.
  • the source and / or depression it is also possible for the source and / or depression to be completely surrounded by the semifinished product according to the invention or a component formed therefrom. Details and preferred embodiments, which have been mentioned to the semifinished product according to the invention, should also be used here accordingly.
  • the semifinished product according to the invention or a component molded therefrom is used for shielding electromagnetic radiation, it has, for example, a thickness of 0.10 to 4.0 mm, preferably 0.12 to 2.2 mm, particularly preferably 0.12 to 1 , 0 mm, on.
  • the present invention also relates to the use of the semifinished product according to the invention or of a component formed therefrom for shielding electromagnetic radiation, dynamic or static electrical and / or dynamic or static magnetic fields.
  • Electromagnetic, dynamic or static electrical and / or dynamic or static magnetic fields are intentionally or unwillingly generated by the use and operation of certain magnetic, electrical or electronic devices.
  • the present invention relates to the use according to the invention, wherein in addition a high mechanical strength of the semifinished product or of a component formed therefrom is given, for example expressed by a yield strength of at least 200 MPa, preferably at least 400 MPa, more preferably at least 750 MPa.
  • a particular advantage of the present invention is therefore that a material can be provided which according to the invention preferably has good mechanical properties in addition to a high shielding effect.
  • the present invention relates to the use according to the invention, wherein buildings, in particular security-relevant buildings, rooms, laboratories, production facilities, server cabinets, control cabinets, plug connections, holders and housings, for example for electrical machines, power electronics, computers, communication electronics, alarm systems, Safety technology, fire and gas detectors, protective covers, charging stations, kitchen appliances, medical devices, electronic devices, preferably in automobiles, electronic components, radio devices, for example permanent magnets, electronic components and / or batteries, for example non-rechargeable batteries or accumulators, or the shielding material as ceiling and / or wall panels, as floor coverings, as cable ducts, in measurement technology is used.
  • buildings in particular security-relevant buildings, rooms, laboratories, production facilities, server cabinets, control cabinets, plug connections, holders and housings, for example for electrical machines, power electronics, computers, communication electronics, alarm systems, Safety technology, fire and gas detectors, protective covers, charging stations, kitchen appliances, medical devices, electronic devices, preferably in automobiles, electronic components, radio devices, for example permanent magnets, electronic components and / or batteries,
  • thermoformable, platinum or strip-shaped semi-finished product for producing a three-dimensionally shaped hybrid component in the metal / plastic composite.
  • Figure 2 shows an inventive three-dimensionally shaped hybrid component in the metal / plastic composite.
  • Figure 3 shows an inventive three-dimensionally shaped hybrid component in the metal / plastic composite with applied plastic structural body.
  • the semifinished product according to the invention combines good mechanical characteristics and a high degree of shielding against electromagnetic radiation, dynamic or static electrical and / or dynamic or static magnetic fields, so that advantageous three-dimensionally shaped hybrid components as components for a vehicle, aircraft, ship or building can be made.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un produit semi-fini en forme de platine ou de bande apte à l'emboutissage pour la fabrication d'un composant hybride tridimensionnel en composite métal/matière plastique, qui comprend au moins une tôle métallique en forme de platine ou de bande de protection contre un rayonnement électromagnétique, des champs électriques dynamiques ou statiques et/ou des champs magnétiques dynamiques ou statiques, et au moins une couche de matière plastique thermoplastique, thermodurcissable ou élastomère appliquée avec liaison de matière sur la tôle métallique, un procédé pour la fabrication d'un composant hybride tridimensionnel en composite métal/matière plastique, l'utilisation du produit semi-fini selon l'invention pour la fabrication d'un composant hybride tridimensionnel comme composant, ainsi qu'un procédé pour la protection contre un rayonnement électromagnétique, des champs électriques dynamiques ou statiques et/ou des champs magnétiques dynamiques ou statiques.
PCT/EP2019/061331 2018-05-09 2019-05-03 Produit semi-fini hybride en acier et matiere plastique ayant des propriétés de blindage WO2019215020A1 (fr)

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