WO2019215020A1 - Hybrid steel plastic semi-finished product having shielding properties - Google Patents

Hybrid steel plastic semi-finished product having shielding properties 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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WO
WIPO (PCT)
Prior art keywords
product according
semifinished product
plastic
dynamic
metal sheet
Prior art date
Application number
PCT/EP2019/061331
Other languages
German (de)
French (fr)
Inventor
Fabian Schongen
Vanessa Wieschalla
Lothar Patberg
Dieter Kalemba
Original Assignee
Thyssenkrupp Ag
Thyssenkrupp Steel Europe 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 Thyssenkrupp Ag, Thyssenkrupp Steel Europe Ag filed Critical Thyssenkrupp Ag
Publication of WO2019215020A1 publication Critical patent/WO2019215020A1/en

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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
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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
    • 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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    • B32B15/098—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
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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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.

Abstract

The invention relates to a deep-drawable, board- or strip-shaped semi-finished product for producing a three-dimensionally shaped hybrid component in the metal/plastic composite, which comprises at least one board- or strip-shaped metal sheet shielding electromagnetic radiation, dynamic or static electric and/or dynamic or static magnetic fields, and at least one thermoplastic, duroplastic or elastomeric plastic layer that is integrally bonded onto the metal sheet. The invention also relates to a method for producing a three-dimensionally shaped hybrid component in the metal/plastic composite, to the use of the semi-finished product according to the invention for producing a three-dimensionally shaped hybrid component as a component, and to a method for shielding electromagnetic radiation, dynamic or static electric and/or dynamic or static magnetic fields.

Description

Hybrides Stahl-Kunststoffhalbzeug mit Abschirmeigenschaften  Hybrid steel-plastic semi-finished product with shielding properties
Technisches Gebiet Technical area
Die Erfindung betrifft ein tiefziehfähiges, platinen- oder bandförmiges Halbzeug zur Herstellung eines dreidimensional geformten Hybridbauteils im Metall/Kunststoffverbund, das mindestens ein elektromagnetische Strahlung, dynamische oder statische elektrische und/oder dynamische oder statische magnetische Felder abschirmendes, platinen- oder bandförmiges Metallblech und min- destens eine auf dem Metallblech stoffschlüssig aufgebrachte thermoplastische, duroplastische oder elastomere Kunststoffschicht aufweist, wobei das Metallblech eine bestimmte Zusammen- setzung aufweist und das Halbzeug einen Schirmfaktor S(v) von 1 ,00 bis 120,00 dB bei einem dynamischen, magnetischen Feld oder einem dynamischen, elektromagnetischen Feld mit einer Frequenz v von 0,001 bis zu 1000 kHz aufweist, wobei der Schirmfaktor S(v) aus dem Quotient der Feldstärke gemessen am Ort der Senke mit bzw. ohne zwischen Senke und Quelle befindli chem abschirmendem Material bestimmt wird. Ferner betrifft die vorliegende Erfindung ein Ver- fahren zur Herstellung eines dreidimensional geformten Hybridbauteils im Metall/Kunststoffver- bund, wobei ein erfindungsgemäßes Halbzeugs verwendet wird, wobei an die als Koppelschicht ausgebildete Kunststoffschicht durch Spritzgießen, Pressformen, thermisches Pressen oder Fließpressen ein dreidimensionaler Strukturkörper aus Kunststoff stoffschlüssig angeformt wird, die Verwendung des erfindungsgemäßen Halbzeugs zur Herstellung eines dreidimensional ge- formten Hybridbauteils als Bauteil für ein Fahrzeug, Flugzeug, Schiff, Schienenfahrzeug oder im Maschinenbau, in der Energiebranche oder im Bauwesen, sowie ein Verfahren zur Abschirmung von elektromagnetischer Strahlung, dynamischen oder statischen elektrischen und/oder dynami- schen oder statischen magnetischen Feldern, dadurch gekennzeichnet, dass Quelle und/oder Senke zumindest teilweise mit einem erfindungsgemäßen Halbzeug umgeben werden. 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. Furthermore, 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.
Im Bauwesen und insbesondere im Fahrzeugbau werden in hohem Maße Leichtbauteile verwen- det, welche neben einem geringen Gewicht zusätzlich hohe Festigkeiten und Steifigkeiten auf- weisen müssen. Häufig dienen entsprechende Leichtbauteile in einer Fahrzeugkarosserie als crashrelevante Strukturbauteile, wie etwa eine B-Säule, ein Stoßfänger oder ein Seitenaufprall- träger. Ein Ansatz zur Erreichung derartiger Leichtbauteile ist, unterschiedliche Werkstoffe mit- einander zu kombinieren. In the construction industry, and in particular in vehicle construction, lightweight components are used to a great extent, which in addition to a low weight must additionally have high strengths and stiffnesses. Frequently, 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.
Des Weiteren sollen Materialien, welche die oben genannten Eigenschaften aufweisen, mit wei- teren Funktionen versehen werden, beispielsweise mit der Eigenschaft, gegen elektromagneti- sehe Strahlung, dynamische oder statische elektrische und/oder dynamische oder statische ma- gnetische Felder abzuschirmen. Ebenso ist in der Technik ein Trend zur Miniaturisierung zu be- obachten, was wiederum erhöhte Anforderungen an die elektromagnetische Verträglichkeit (EMV) stellt. In addition, 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. Likewise, a trend towards miniaturization can be observed in technology, which in turn places increased demands on electromagnetic compatibility (EMC).
Aus dem Stand der Technik sind Materialien bzw. Vorrichtungen, in denen abschirmende Metal- le mit Kunststoffschichten kombiniert werden, bereits bekannt. Materials or devices in which shielding metals are combined with plastic layers are already known from the prior art.
US 2007/0134452 A1 offenbart beispielsweise ein Behältnis, welches in Schienenfahrzeugen oder Kraftfahrzeugen eingesetzt werden kann. Es ist aus abschirmend wirkendem Metall ausge- bildet und enthält einen Einsatz aus Kunststoff. Der Metallbehälter weist an der Öffnung eine Kan- te auf, die umgebogen ist, um den Kunststoffeinsatz zu fixieren. 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 offenbart eine Abdeckplatte, die ein Metallblech und eine Kunststoffschicht enthält und zur Abschirmung von elektromagnetischer Strahlung verwendet wird. 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 offenbart ein Material, um Kabel, durch die elektrischer Strom fließt, gegen elek- tromagnetische Strahlung abzuschirmen. Der Vorteil dieses Material ist, dass es flexibel ist und daher das ummantelte Kabel ebenfalls flexibel bleibt. 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.
Von diesem Stand der Technik ausgehend ist es Aufgabe der vorliegenden Erfindung, ein Halb- zeug zur Herstellung eines dreidimensional geformten Hybridbauteils im Metall/Kunststoffver- bund zur Verfügung zu stellen, welches neben vorteilhaften mechanischen Eigenschaften auch eine sehr gut abschirmende Wirkung gegenüber elektromagnetischer Strahlung, dynamischen oder statischen elektrischen und/oder dynamischen oder statischen magnetischen Feldern auf- weist. Dadurch soll es den Herstellern möglich sein, entsprechende Hybridbauteile mit hohem Lastaufnahmevermögen und hoher Abschirmwirkung deutlich kostengünstiger herzustellen als dies mit den Verfahren des Standes der Technik möglich ist. Starting from this prior art, it is an object of the present invention to provide a semifinished product for the production of a three-dimensionally shaped hybrid component in the metal / plastic composite which, in addition to advantageous mechanical properties, also has a very good shielding effect against electromagnetic radiation, dynamic or static electrical and / or dynamic or static magnetic fields. This should make it possible for the manufacturers to produce corresponding hybrid components with a high load-bearing capacity and a high shielding effect significantly more cost-effectively than is possible with the methods of the prior art.
Diese Aufgaben werden gelöst durch das erfindungsgemäße tiefziehfähige, platinen- oder band- förmige Halbzeug zur Herstellung eines dreidimensional geformten Hybridbauteils im Me- tall/Kunststoffverbund, das mindestens ein elektromagnetische Strahlung, dynamische oder sta- tische elektrische und/oder dynamische oder statische magnetische Felder abschirmendes, pla tinen- oder bandförmiges Metallblech und mindestens eine auf dem Metallblech stoffschlüssig aufgebrachte thermoplastische, duroplastische oder elastomere Kunststoffschicht aufweist, wo bei das Metallblech die folgende Zusammensetzung aufweist (jeweils in Gew.-%): 0,001 bis 2,1 C, These objects are achieved by 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,
0,001 bis 30,00 Mn,  0.001 to 30.00 Mn,
0,001 bis 8,00 Si,  0.001 to 8.00 Si,
0,01 bis 4,00 AI,  0.01 to 4.00 AI,
0,001 bis 1 ,00 Cr,  0.001 to 1, 00 Cr,
Rest Fe und unvermeidbare Verunreinigungen, und das Halbzeug einen Schirmfaktor S(v) von 1 ,00 bis 120,00 dB bei einem dynamischen, magnetischen Feld oder einem dynamischen, elek- tromagnetischen Feld mit einer Frequenz v von 0,001 bis zu 1000 kHz aufweist, wobei der Schirmfaktor S(v) aus dem Quotient der Feldstärke gemessen am Ort der Senke mit bzw. ohne zwischen Senke und Quelle befindlichem abschirmendem Material bestimmt wird. 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.
Des Weiteren werden die erfindungsgemäßen Aufgaben gelöst durch Verfahren zur Herstellung eines dreidimensional geformten Hybridbauteils im Metall/Kunststoffverbund, durch die Verwen- dung des erfindungsgemäßen Halbzeugs zur Abschirmung von elektromagnetischer Strahlung, dynamischen oder statischen elektrischen und/oder dynamischen oder statischen magnetischen Feldern. Furthermore, 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.
Das erfindungsgemäß vorliegende, elektromagnetische Strahlung, dynamische oder statische elektrische und/oder dynamische oder statische magnetische Felder abschirmende, platinen- oder bandförmige Metallblech weist die folgende Zusammensetzung (jeweils in Gew.-%): 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 .-%):
0,001 bis 2,1 C, 0.001 to 2.1 C,
0,001 bis 30,00 Mn,  0.001 to 30.00 Mn,
0,001 bis 8,00 Si,  0.001 to 8.00 Si,
0,01 bis 4,00 AI,  0.01 to 4.00 AI,
0,001 bis 1 ,00 Cr,  0.001 to 1, 00 Cr,
Rest Fe und unvermeidbare Verunreinigungen, auf. Residual Fe and unavoidable impurities, up.
Kohlenstoff (C) liegt in einer Menge von 0,001 bis 2,1 Gew.-%, bevorzugt 0,001 bis 0,800 Gew.- %, besonders bevorzugt 0,002 bis 0,700 Gew.-%, ganz besonders bevorzugt 0,002 bis 0,650 Gew.-%, vor. 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% ,
Mangan (Mn) liegt in einer Menge von 0,001 bis 30,00 Gew.-%, bevorzugt 0,01 bis 25,00 Gew.- %, besonders bevorzugt 0,1 bis 23,00 Gew.-%, vor. Silizium (Si) liegt in einer Menge von 0,001 bis 8,00 Gew.-%, bevorzugt 0,001 bis 4,00 Gew.-%, besonders bevorzugt 0,01 bis 3,5 Gew.-%, ganz besonders bevorzugt 0,02 bis 3,4 Gew.-%, vor. 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.
Aluminium (AI) liegt in einer Menge von 0,01 bis 4,00 Gew.-%, bevorzugt 0,01 bis 2,00 Gew.-%, besonders bevorzugt 0,02 bis 1 ,8 Gew.-%, ganz besonders bevorzugt 0,02 bis 1 ,6 Gew.-%, vor. 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.
Chrom (Cr) liegt in einer Menge von 0,001 bis 1 ,00 Gew.-%, bevorzugt 0,01 bis 0,5 Gew.-%, be- sonders bevorzugt 0,01 bis 0,4 Gew.-%, vor. 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.
Neben den genannten Legierungselementen kann das erfindungsgemäß eingesetzte Metall- blech ein oder mehrere Legierungselemente aus der folgenden Gruppe enthaltend As, B, Cu, Ni, Mo, Ti, V, S, P und Sn aufweisen. Die vorliegende Erfindung betrifft daher bevorzugt das er- findungsgemäße Halbzeug, wobei das eingesetzte Metallblech wenigstens ein Legierungsele- ment ausgewählt aus der Gruppe bestehend aus As, B, Cu, Ni, Mo, Ti, V, S, P und Sn enthält. In addition to the abovementioned alloying elements, 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.
Wenn die genannten zusätzlichen Legierungselemente vorliegen, so liegen sie weiter bevorzugt in den im Folgenden genannten Mengen vor. If the said additional alloying elements are present, they are furthermore preferably present in the amounts mentioned below.
0 bis 0,01 , bevorzugt 0,001 bis 0,004 Gew.-% As und/oder 0 to 0.01, preferably 0.001 to 0.004 wt .-% As and / or
0,001 bis 0,005 Gew.-% B und/oder 0.001 to 0.005 wt .-% B and / or
0,01 bis 0,07 Gew.-% Cu und/oder 0.01 to 0.07 wt .-% Cu and / or
0 bis 0,3, bevorzugt 0 bis 0,01 Gew.-% Mo und/oder 0 to 0.3, preferably 0 to 0.01 wt .-% Mo and / or
0,001 bis 0,5, bevorzugt 0,001 bis 0,3 Gew.-% Ti und/oder 0.001 to 0.5, preferably 0.001 to 0.3 wt .-% Ti and / or
0 bis 0,5, bevorzugt 0,001 bis 0,2 Gew.-% V und/oder 0 to 0.5, preferably 0.001 to 0.2 wt .-% V and / or
0 bis 0,5, bevorzugt 0,001 bis 0,2 Gew.-% P und/oder 0 to 0.5, preferably 0.001 to 0.2 wt .-% P and / or
0,001 bis 0,05 Gew.-% S und/oder 0.001 to 0.05 wt .-% S and / or
0,001 bis 0,01 Gew.-% Sn. 0.001 to 0.01% by weight of Sn.
Unvermeidbare Verunreinigungen im Sinne der vorliegenden Erfindung sind beispielsweise O, N, Nb oder Sb. Unavoidable impurities in the sense of the present invention are, for example, O, N, Nb or Sb.
Die Herstellung des erfindungsgemäß eingesetzten Metallblechs kann nach dem Fachmann be- kannten Verfahren erfolgen. Insbesondere kann als Metallblech ein Warmband oder ein Kalt band, weiter bevorzugt als Coil oder als Platine, eingesetzt werden. Das erfindungsgemäß eingesetzte Metallblech weist in einer bevorzugten Ausführungsform ein Gefüge auf enthaltend 0 bis 100 Gew.-%, bevorzugt 5 bis 95 Gew.-%, Ferrit, 0 bis 95 Gew.-%, bevorzugt 0 bis 60 Gew.-%, Bainit, 0 bis 20 Gew.-%, bevorzugt 5 bis 20 Gew.-% Perlit, 0 bis 100 Gew.-%, bevorzugt 3 bis 35 Gew.-%, Martensit oder bis zu 100 Gew.-% Martensit, 0 bis 20 Gew.-%, bevorzugt 2 bis 15 Gew.-%, Restaustenit und ggf. Karbide, wobei die Summe jeweils 100 Gew.-% ergibt. Diese bevorzugten Gefüge tragen dazu bei, dass das das erfindungsgemäß eingesetzte Metallblech besonders gute mechanische Eigenschaften, insbesondere bezüglich Streckgrenze, Duktilität, Zugfestigkeit und/oder Bruchdehnung aufweist. In einer bevorzugten Ausführungsform enthält das erfindungsgemäß eingesetzte Metallblech kein austenitisches Ge- füge. Im Rahmen der vorliegenden Erfindung bedeutet dies, dass das erfindungsgemäß einge- setzte Metallblech ein Gefüge aufweist, dass bevorzugt weniger als 8 Gew.-% Austenit, beson- ders bevorzugt weniger als 5 Gew.-%, ganz besonders bevorzugt weniger als 2 Gew.-%, ent- hält. Die Abwesenheit von Austenit ermöglicht die erfindungsgemäßen guten Abschirmeigen- schaften. Es wurde überraschenderweise gefunden, dass das Vorhandensein von Austenit die Abschirmeigenschaften verschlechtert, so dass bevorzugt möglichst kein Austenit in dem erfin- dungsgemäß eingesetzten Metallblech vorliegt. 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. In particular, as a metal sheet, a hot strip or a cold strip, more preferably as a coil or as a board, are used. In a preferred embodiment, 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. These preferred microstructures contribute to the fact that 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. In a preferred embodiment, the metal sheet used according to the invention contains no austenitic composition. In the context of the present invention, 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.
Das erfindungsgemäß eingesetzte Metallblech weist beispielsweise eine Streckgrenze von 100 bis 1900 MPa auf. The metal sheet used according to the invention has, for example, a yield strength of 100 to 1900 MPa.
Das erfindungsgemäß eingesetzte Metallblech weist beispielsweise eine Zugfestigkeit von min- destens 200 MPa, bevorzugt wenigstens 400 MPa, besonders bevorzugt mindestens 750 MPa, auf. 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.
Das erfindungsgemäß eingesetzte Metallblech weist beispielsweise eine Bruchdehnung A80 von 2 bis 45% auf. The metal sheet used according to the invention has, for example, an elongation at break A80 of 2 to 45%.
Weiter bevorzugt weist das erfindungsgemäß eingesetzte Metallblech eine Korngröße von 2 bis 200 pm, bevorzugt 2 bis 100 pm, insbesondere bevorzugt 5 bis 30 pm, auf. Diese erfindungs- gemäß bevorzugte Korngröße trägt beispielsweise dazu bei, die magnetischen Eigenschaften zu verbessern. More preferably, the metal sheet used according to the invention has a particle size of 2 to 200 μm, preferably 2 to 100 μm, particularly preferably 5 to 30 μm. For example, this grain size, which is preferred according to the invention, contributes to improving the magnetic properties.
Anstelle eines Metallblechs aus Stahlwerkstoff kann das erfindungsgemäße Halbzeug auch ein Metallblech aus einem anderen Metall aufweisen, beispielsweise aus Magnesium oder Alumini- um aufweisen. Das erfindungsgemäße Halbzeug weist mindestens eine auf dem Metallblech stoffschlüssig auf- gebrachte thermoplastische, duroplastische oder elastomere Kunststoffschicht auf. Instead of a metal sheet of steel material, 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.
Erfindungsgemäß bevorzugt ist der mindestens eine thermoplastische Kunststoff ausgewählt aus der Gruppe bestehend aus Polyolefinen, bevorzugt Polyethylen (PE), Polypropylen (PP), Polybu- tylen (PB) und Polyisobutylen (PIB), besonders bevorzugt PE, Polyamiden (PA), Polycarbonaten (PC), thermoplastischen Polyestern, thermoplastischen Polyurethanen (PU), Polysulfiden (PS), Polyetheretherketonen (PEEK), Polyarylen, aromatischen Polyestern, Polyaramiden, Polyara- mid-Fasern, heterocyclischen Polymeren, Flüssigkristallpolymeren (LCP Liquid Crystalline Poly- mers), Fluorpolymeren, Perfluoroxyalkanen, Polyphenylenen, funktionalisierten Varianten der ge- nannten Polymere und Mischungen davon, bevorzugt ein Compound aufweisend mindestens zwei der genannten Polymere, besonders bevorzugt mindestens ein Polyolefin und mindestens ein Polyamid. According to the invention, 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.
Beispiele für erfindungsgemäß einsetzbare Polyolefine sind ausgewählt aus der Gruppe beste- hend aus Acrylnitril-Butadien-Styrolen (ABS), Polymethyl(meth)acrylaten (PM(M)A), Polyethyle- nen (PE), Polypropylenen (PP), Polystyrolen (PS), Polyvinylchloriden (PVC) und Mischungen da- von. Examples of 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.
Beispiele für erfindungsgemäß einsetzbare Polyester sind ausgewählt aus der Gruppe bestehend aus Polyethylenterephthalat (PET), Polylactaten (PLA) und Mischungen davon. Examples of polyesters which can be used according to the invention are selected from the group consisting of polyethylene terephthalate (PET), polylactates (PLA) and mixtures thereof.
Beispiele für erfindungsgemäß einsetzbare Polyaramide sind ausgewählt aus der Gruppe beste- hend aus Poly-m-phenylenisophthalamid (PMI), Polyaramid-Fasern und Mischungen davon. Examples of 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.
Beispiele für erfindungsgemäß einsetzbare heterocyclische Polymere sind ausgewählt aus der Gruppe bestehend aus Polyimiden, Polybenzimidazolen, Polyetherimiden und Mischungen da- von. Examples of heterocyclic polymers which can be used according to the invention are selected from the group consisting of polyimides, polybenzimidazoles, polyetherimides and mixtures thereof.
Die vorliegende Erfindung betrifft daher bevorzugt das erfindungsgemäße Halbzeug, wobei der mindestens eine thermoplastische Kunststoff ausgewählt ist aus der Gruppe bestehend aus Po- lyolefinen, Polyamiden (PA), Polycarbonaten (PC), thermoplastischen Polyestern, thermoplasti- schen Polyurethanen (PU), Polysulfiden (PS), Polyetheretherketonen (PEEK), Polyarylen, aro- matischen Polyestern, Polyaramiden, Polyaramid-Fasern, heterocyclischen Polymeren, Flüssig- kristallpolymeren (LCP Liquid Crystalline Polymers), Fluorpolymeren, Perfluoroxyalkanen, Poly- phenylenen, funktionalisierten Varianten der genannten Polymere und Mischungen davon. Erfindungsgemäß bevorzugt ist der mindestens eine duroplastische Kunststoff ausgewählt aus der Gruppe bestehend aus Epoxidharzen (EP), Harnstoff-Formaldehydharzen (UF), Phenol- Formaldehydharzen (PF), Melamin-Formaldehydharzen (MF), Melamin/Phenol-Formaldehyden (MPF), duroplastischen Polyestern (PES), Polyurethanen (PUR), ungesättigten Polyestern (UP), teilvernetzten (bi-stage) duroplastische Polymere, funktionalisierten Varianten der genannten Po- lymere und Mischungen davon. 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 , According to the invention, 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 Polyesters (PES), polyurethanes (PUR), unsaturated polyesters (UP), partially crosslinked (bi-stage) thermosetting polymers, functionalized variants of said polymers and mixtures thereof.
Die vorliegende Erfindung betrifft daher bevorzugt das erfindungsgemäße Halbzeug, wobei der mindestens eine duroplastische Kunststoff ausgewählt ist aus der Gruppe bestehend aus Epoxid- harzen (EP), Harnstoff-Formaldehydharzen (UF), Phenol-Formaldehydharzen (PF), Melamin- Formaldehydharzen (MF), Melamin/Phenol-Formaldehyden (MPF), duroplastischen Polyestern (PES), Polyurethanen (PUR), ungesättigten Polyestern (UP), teilvernetzten (bi-stage) duroplasti- sche Polymere, funktionalisierten Varianten der genannten Polymere und Mischungen davon. 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.
Die teilvernetzten (bi-stage) Polymere erhalten ihre finalen Eigenschaften abschließend durch chemisch, thermisch und/oder photolytisch initiierte Polymerisation. The partially cross-linked (bi-stage) polymers are finally given their final properties by chemically, thermally and / or photolytically initiated polymerization.
Erfindungsgemäß bevorzugt ist der mindestens eine elastomere Kunststoff ausgewählt aus der Gruppe bestehend aus Naturkautschuken (NR), Silicon-Kautschuken (SIR), Silicon-Butadien- Kautschuken (SBR), Polyvinylbutyralen (PVB), Polyisobutylenen (PIB), Isopren-Kautschuken (IR), Ethylenvinylacetaten (EVA), Ethylen-Propylen-Dien-Kautschuken (EPDM), Ethylen-Propy- len-Copolymeren (EPM), Ethylen-Ethylacrylat- Copolymeren (E/EA), Chloropren-Kautschuken (CR), Butadien-Kautschuken (BR), Acrylnitril/ Methylmethacrylaten (A/MMA), Butylkautschuken (IIR), Styrol-Butadien-Styrolen (SBS), Polyether-Block-Amiden (PEBA), funktionalisierten Varian- ten und Mischungen davon. According to the invention, 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.
Die vorliegende Erfindung betrifft daher bevorzugt das erfindungsgemäße Halbzeug, wobei der mindestens eine elastomere Kunststoff ausgewählt ist aus der Gruppe bestehend aus Naturkau- tschuken (NR), Silicon-Kautschuken (SIR), Silicon-Butadien-Kautschuken (SBR), Polyvinylbuty- ralen (PVB), Polyisobutylenen (PIB), Isopren-Kautschuken (IR), Ethylenvinylacetaten (EVA), Ethylen-Propylen-Dien-Kautschuken (EPDM), Ethylen-Propylen-Copolymeren (EPM), Ethylen- Ethylacrylat- Copolymeren (E/EA), Chloropren-Kautschuken (CR), Butadien-Kautschuken (BR), Acrylnitril/ Methylmethacrylaten (A/MMA), Butylkautschuken (IIR), Styrol-Butadien-Styrolen (SBS), Polyether-Block-Amiden (PEBA), funktionalisierten Varianten und Mischungen davon. Für alle genannten, erfindungsgemäß einsetzbaren Polymere gilt, dass diese ebenfalls als Mi- schungen, Compounds sowie Polymere die durch Zuschlagstoffe funktionalisiert sind, eingesetzt werden können. 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. 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. For all mentioned polymers which can be used according to the invention, these can likewise be used as mixtures, compounds and polymers which are functionalized by additives.
Das stoffschlüssige Aufbringen der mindestens einen thermoplastischen, duroplastischen oder elastomeren Kunststoffschicht auf dem Metallblech kann im Prinzip nach allen dem Fachmann bekannten Verfahren erfolgen. Bevorzugt erfolgt das Aufbringen durch kontinuierliche oder dis- kontinuierliche Verfahren, wobei Stahlbänder und/oder Tafeln verarbeitet werden können. Bei- spielhaft seinen Verfahren genannt unter Verwendung einer Plattenpresse, einer Laminieranla- ge, eines Kalanders, einer Doppelbandpresse oder einer Bandbeschichtungsanlage. Solche Ver- fahren sind dem Fachmann an sich bekannt und in WO 2015/032623 Al beschrieben. 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. Preferably, 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.
In einer bevorzugten Ausführungsform betrifft die vorliegende Erfindung das erfindungsgemäße Halbzeug, wobei die Seite des Metallblechs, auf welcher die thermoplastische, duroplastische oder elastomere Kunststoffschicht aufgebracht ist, eine die Haftung der Kunststoffschicht verbes- sernde Oberfläche aufweist. Um eine solche Oberfläche zu erhalten, kann das Metallblech einer entsprechenden Oberflächenbehandlung unterworfen werden. Bei der Oberflächenbehandlung kann es sich insbesondere um eine Plasmabehandlung, Plasmabeschichtung, Coronabehand- lung oder das Aufträgen einer Schicht, insbesondere einer Haftvermittlerschicht, in einem Coil- Coating-, Dip- oder Dropcoating-Verfahren handeln. In a preferred embodiment, 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. In order to obtain such a surface, 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.
Das erfindungsgemäße Halbzeug weist einen Schirmfaktor S(v) von 1 ,00 bis 120,00 dB, bevor- zugt 10,00 bis 120,00 dB bei einem dynamischen, magnetischen Feld oder einem dynamischen, elektromagnetischen Feld mit bei einer Frequenz v von 0,001 bis 1000 kHz, bevorzugt 0,1 bis 400 kHz, insbesondere bevorzugt 0,1 bis 200 kHz, auf. 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.
Weiter bevorzugt betrifft die vorliegende Erfindung das erfindungsgemäße Halbzeug, wobei Schirmfaktor S(v) nach der Gleichung der Formel (I)
Figure imgf000010_0001
bestimmt wird, wobei U2(v) die in der zweiten Spule induzierte Spannung, l-i(v) der in der ersten Spule fließende Strom und l10(v) der Strom in der ersten Spule und U20(v) die Spannung in der zweiten Spule, jeweils ohne eingebrachte Probe, sind. Der Schirmfaktor S(v) wird bevorzugt ermittelt, indem die Spannung U2(v) in einer zweiten Spu- le, die durch einen Strom l-i(v) in einer ersten Spule induziert wird, gemessen wird, während sich eine Probe des abschirmenden monolithischen Materials zwischen der ersten und der zweiten Spule befindet und sich die Spulen in einem Abstand von höchstens 40 mm befinden. More preferably, 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)
Figure imgf000010_0001
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.
Besonders bevorzugt wird der Schirmfaktor S(v) nach der Gleichung der Formel (I) The screen factor S (v) is particularly preferably calculated according to the equation of the formula (I)
S(v) = 20 log (I),S (v) = 20 log (I),
Figure imgf000011_0001
bestimmt, wobei U2(v) die in der zweiten Spule induzierte Spannung, l-i(v) der in der ersten Spule fließende Strom und l10(v) der Strom in der ersten Spule und U20(v) die Spannung in der zweiten
Figure imgf000011_0001
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 second coil
Spule, jeweils ohne eingebrachte Probe, sind. Coil, each without introduced sample, are.
Weiter bevorzugt wird die Schirmdämpfung S(v) des erfindungsgemäßen Halbzeugs durch einMore preferably, the shielding attenuation S (v) of the semifinished product according to the invention by a
Verfahren bestimmt, mindestens umfassend die folgenden Schritte: Method determines, comprising at least the following steps:
(A) Bereitstellen einer ersten Spule S1 mit einer ersten Induktivität L1 , die mit einem ersten Signalgenerator SG1 und einer Einrichtung zur Strommessung l-i(v) zu einem ersten Stromkreis verbunden ist, (A) providing a first coil S1 having a first inductance L1, which is connected to a first signal generator SG1 and a current measuring device l-i (v) to form a first circuit,
(B) Bereitstellen einer zweiten Spule S2 mit einer zweiten Induktivität L2, die mit einer Ein- richtung zur Spannungsmessung U2(v) zu einem zweiten Stromkreis verbunden ist, wo bei die Spulen S1 und S2 räumlich so zueinander angeordnet sind, dass sie auf der glei- chen Rotationsachse liegen und zwischen ihnen ein Freiraum ausgebildet wird, (B) Providing a second coil S2 with a second inductance L2, which is connected to a voltage measuring device U 2 (v) to a second circuit, where in the coils S1 and S2 are spatially arranged to each other so that they on lie on the same axis of rotation and between them a free space is formed,
(C) Einbringen einer Probe des erfindungsgemäßen Halbzeugs in den Freiraum,  (C) introducing a sample of the semifinished product according to the invention into the free space,
(D) Generierung einer sinusförmigen Spannung mit einer Frequenz v von 0,001 bis 1000 kHz durch den ersten Signalgenerator SG 1 in der ersten Spule S1 ,  (D) Generation of a sinusoidal voltage with a frequency v of 0.001 to 1000 kHz by the first signal generator SG 1 in the first coil S1,
(E) Messen der Stromstärke l-i(v) im ersten Stromkreis,  (E) measuring the current I-i (v) in the first circuit,
(F) Messen der Spannung U2(v) im zweiten Stromkreis, (F) measuring the voltage U 2 (v) in the second circuit,
(G) Bestimmen des Schirmfaktors S(v) über die Gleichung der Formel (I)  (G) Determining the screen factor S (v) via the equation of the formula (I)
S(v) = 20 log (I),S (v) = 20 log (I),
Figure imgf000011_0002
wobei l-io(v) der Strom im ersten Stromkreis und U20(v) die Spannung im zweiten Strom- kreis, jeweils ohne eingebrachte Probe, sind. io
Figure imgf000011_0002
where l-io (v) is the current in the first circuit and U 20 (v) is the voltage in the second circuit, each without a sample introduced. io
Das erfindungsgemäß bevorzugte Verfahren zur Bestimmung des Schirmfaktors S(v) umfassend die Schritte (A) bis (G) wird im Detail in der Deutschen Patentanmeldung DE 10 2017 216 985.0 vom 25. September 2017 beschrieben. The inventively preferred method for determining the screening factor S (v) comprising the steps (A) to (G) is described in detail in the German patent application DE 10 2017 216 985.0 from 25 September 2017.
Das erfindungsgemäß eingesetzte Metallblech kann unbeschichtet eingesetzt werden. Das er- findungsgemäß eingesetzte Metallblech wird in einer bevorzugten Ausführungsform beschich- tet eingesetzt. Entsprechende, insbesondere vor Korrosion schützende Beschichtungen, sind dem Fachmann an sich bekannt und sind zum Beispiel anorganische Beschichtungen wie Me- talle oder Keramiken oder organische Beschichtungen auf Polymerbasis. 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.
Bevorzugt werden metallische Beschichtungen basierend auf Zink oder Aluminium oder Zinkle- gierungen oder Aluminiumlegierungen in Kombination mit Silizium und/oder Magnesium einge- setzt. Die vorliegende Erfindung betrifft daher bevorzugt das erfindungsgemäße Halbzeug, wel- ches ein Metallblech enthält, welches eine Oberflächenbeschichtung aufweist. Die Beschichtung kann auf das erfindungsgemäß eingesetzte Metallblech im Allgemeinen nach allen dem Fach- mann bekannten Verfahren aufgebracht werden, beispielsweise elektrolytische Beschichtung, Schmelztauchverfahren oder Aufdampfen. Die Beschichtung kann ein- oder beidseitig vorliegen. Wird das in dem erfindungsgemäßen abschirmenden Halbzeug vorliegende Metallblech mit ei- ner entsprechenden Oberflächenbeschichtung versehen und verwendet, ist es vorteilhafterweise besser gegen Korrosion geschützt. Preference is given to using metallic coatings based on zinc or aluminum or zinc alloys or aluminum alloys in combination with silicon and / or magnesium. 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.
Das mindestens eine Metallblech des erfindungsgemäßen Halbzeugs hat beispielsweise eine Di- cke im Bereich von 0,1 bis 2,5 mm, vorzugsweise 0,1 bis 1 ,0 mm, besonders bevorzugt im Be- reich von 0,1 bis 0,5 mm. 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 ,
Die auf dem Metallblech stoffschlüssig aufgebrachte thermoplastische, duroplastische oder elas- tomere Kunststoffschicht kann dagegen eher etwas dünner ausgebildet sein. Sie besitzt bei- spielsweise eine Dicke im Bereich von 0,01 bis 1 ,2 mm, vorzugsweise 0,05 bis 1 ,0 mm, beson- ders bevorzugt im Bereich von 0,05 bis 0,4 mm. On the other hand, the 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.
In seitens der Anmelderin durchgeführten Versuchen hat sich gezeigt, dass ein erfindungsgemä- ßes Halbzeug, dessen Metallblech und Kunststoffschicht Dicken in den genannten Bereichen auf- weisen, im Tiefungsversuch nach Erichsen bei Raumtemperatur gut tiefziehfähig ist. Die als Kop- pelschicht dienende thermoplastische, duroplastische oder elastomere Kunststoffschicht fließt beim Tiefziehen des erfindungsgemäßen Halbzeugs mit dem Metallblech mit und verliert dabei seine Haftung nicht. In tests carried out by the Applicant, it has been found that a semifinished product according to the invention whose metal sheet and plastic layer have thicknesses in the stated ranges is well deep-drawable at room temperature in the Erichsen roasting test. The 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.
Die Funktion der thermoplastischen oder duroplastischen Kunststoffschicht (Koppelschicht) des erfindungsgemäßen Halbzeugs besteht darin, dass sich diese mit einer Vielzahl von anderen Kunststoffen zuverlässig, ohne Aufbringen von Klebstoff, stoffschlüssig verbinden lässt. Im Spritz- gussprozess wird hierzu beispielsweise die Energie der Kunststoffschmelze genutzt, um die Oberfläche der Koppelschicht zu aktivieren und den Stoffschluss herzustellen. Nach Abkühlung der Schmelze liegt ein perfekter Verbund zwischen der Koppelschicht und dem angespritzten Kunststoff vor. Bei dem angespritzten Kunststoff kann es sich nicht nur um thermoplastischen Kunststoff, sondern auch um duroplastischen Kunststoff und/oder um einen Kunststoff aus dem Bereich der Elastomere handeln. Weiterhin ist es möglich, durch Plasma- oder Coronavorbe- handlung vor dem Spritzgießprozess die Koppelschichtoberfläche zusätzlich zu aktivieren, um das Spektrum der einsetzbaren Kunststoffe zu erweitern. Mit dem erfindungsgemäßen Halbzeug lassen sich die am Standort eines Automobilherstellers bzw. Bauteilzulieferers auszuführenden Arbeitsschritte zur Herstellung eines dreidimensional geformten Hybridbauteils erheblich reduzie- ren. Beispielsweise hat der Automobilhersteller bzw. Bauteilzulieferer mit dem erfindungsgemä- ßen Halbzeug insbesondere die Möglichkeit, ein dreidimensional geformtes Hybridbauteils durch folgende Prozessschritte herzustellen: The function of the 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. In the injection molding process, for example, 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. Furthermore, it is possible to additionally activate the coupling layer surface by plasma or corona pre-treatment before the injection molding process, in order to widen the spectrum of usable plastics. 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. For example, 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:
1 . Platinen- oder bandförmiges Halbzeug konfektionieren (Zuschneiden); 1 . Assemble blank or strip-shaped semi-finished products (cutting);
2. Zugeschnittenes Halbzeug zu einem Umformwerkzeug mit integriertem Spritzgießaggregat transportieren und einlegen;  2. Transport cut semi-finished product to form a forming tool with integrated injection molding unit and insert it;
3. Umformen und Hinterspritzen des Halbzeugzuschnitts in einem Schritt.  3. Forming and injection molding of the semi-finished blank in one step.
Eine vorteilhafte Ausgestaltung des erfindungsgemäßen Halbzeugs ist dadurch gekennzeichnet, dass die Kunststoffschicht (Koppelschicht) die Seite des Metallblechs, auf welcher sie aufge- bracht ist, nicht vollflächig, sondern partiell bedeckt. Diese Ausgestaltung ist insbesondere dann zweckmäßig, wenn das herzustellende Hybridbauteil beispielsweise nur partiell eine festigkeits- und/oder steifigkeitserhöhende Rippenstruktur aus Kunststoff aufweist. Ein oder mehrere größere Flächenbereiche des Metallblechs, die nach Fertigstellung des Hybridbauteils keine Rippenstruk- tur aufweisen sollen, können somit beim Beschichten des Metallblechs mit der mindestens einen thermoplastischen oder duroplastischen Kunststoffschicht (Koppelschicht) unbeschichtet bleiben. Dies spart Materialkosten und trägt zu einer optimierten Gewichtseinsparung bei ausreichenden Festigkeits- bzw. Steifigkeitseigenschaften und guter Abschirmwirkung bei. Eine weitere vorteilhafte Ausgestaltung des erfindungsgemäßen Halbzeugs besteht darin, dass die thermoplastische, duroplastische oder elastomere Kunststoffschicht doppelt ausgeführt ist, wobei zwischen den beiden Kunststoffschichten eine, insbesondere thermoplastische, Schaum- stoffschicht angeordnet ist. Es hat sich gezeigt, dass die Zwischenanordnung einer, insbeson- dere thermoplastischen, Schaumstoffschicht deutlich zur Gewichtsreduzierung des Hybridbau- teils bei gleichbleibender Festigkeit und Steifigkeit beitragen kann. 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. 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. A further advantageous embodiment of the semifinished product according to the invention is that the 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.
Eine weitere vorteilhafte Ausgestaltung des erfindungsgemäßen Halbzeugs besteht darin, dass auf beiden Seiten des Metallblechs jeweils eine thermoplastische, duroplastische oder elastome- re Kunststoffschicht vorliegt. A further advantageous embodiment of the semifinished product according to the invention consists in that in each case a thermoplastic, thermoset or elastomeric plastic layer is present on both sides of the metal sheet.
Nach einer weiteren vorteilhaften Ausgestaltung ist die Kunststoffschicht (Koppelschicht) des er- findungsgemäßen Halbzeugs partiell mit mindestens einem Organoblech beschichtet. Hierdurch kann die Festigkeit und Steifigkeit des herzustellenden Hybridbauteils bei gleichbleibendem oder sogar vermindertem Gesamtgewicht deutlich verbessert werden. According to a further advantageous embodiment, the plastic layer (coupling layer) of the semifinished product according to the invention is partially coated with at least one organic sheet. As a result, the strength and rigidity of the hybrid component to be produced can be significantly improved while the overall weight remains constant or even reduced.
Alternativ oder zusätzlich kann nach einer weiteren Ausgestaltung des erfindungsgemäßen Halb- zeugs auch dessen Metallblech auf seiner der Kunststoffschicht (Koppelschicht) abgewandten Seite mit mindestens einem Organoblech beschichtet sein. Auch durch diese Ausgestaltung kann die Festigkeit und Steifigkeit des herzustellenden Hybridbauteils bei gleichbleibendem oder so- gar vermindertem Gesamtgewicht und gleichbeliebender oder sogar gesteigerter Abschirmwir- kung deutlich erhöht werden. Dabei kann nach einer weiteren Ausgestaltung das Organoblech auf seiner dem Metallblech abgewandten Seite mit mindestens einem zweiten Metallblech be- schichtet sein. Aus einem solchen Halbzeug lassen sich besonders leichte und zugleich sehr fes- te und steife Hybridbauteile mit entsprechend abschirmender Wirkung hersteilen, insbesondere dann, wenn das Organoblech nach einer bevorzugten Ausgestaltung Kohlenstofffasern enthält. Zudem kann in weiterer Ausgestaltung das zweite Metallblech außenseitig mit einer thermoplasti- schen oder duroplastischen Kunststoffschicht beschichtet sein, die ebenfalls als Koppelschicht zur stoffschlüssigen, klebstofflosen Anbindung mindestens eines aus Kunststoff hergestellten oder herzustellenden Strukturkörpers ausgebildet ist. Aus einem derart ausgestalteten erfindungsgemäßen Halbzeug lassen sich vorteilhaft, ohne einen Auftrag von Klebstoff, Hybrid- bauteile hersteilen, die beidseitig aus Kunststoff hergestellte Strukturkörper, insbesondere Rip- penkörper aufweisen. Alternatively or additionally, according to a further embodiment of the invention, 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. In this case, according to a further embodiment, 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. In addition, in a further refinement, 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. From 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.
Eine andere vorteilhafte Ausgestaltung des erfindungsgemäßen Halbzeugs besteht darin, dass das Metallblech auf seiner der Kunststoffschicht abgewandten Seite mit einer zweiten thermo- plastischen oder duroplastischen Kunststoffschicht beschichtet ist, die ebenfalls als Koppel- Schicht zur stoffschlüssigen, klebstofflosen Anbindung mindestens eines aus Kunststoff herge- stellten oder herzustellenden Strukturkörpers ausgebildet ist. Auch aus einem solchen erfin- dungsgemäßen Halbzeug lassen sich ohne Auftrag von Klebstoff Hybridbauteile hersteilen, die beidseitig aus Kunststoff hergestellte Strukturkörper, insbesondere Rippenkörper aufweisen. Da- bei kann die zweite Kunststoffschicht (Koppelschicht) die Seite des Metallblechs, auf welcher sie aufgebracht ist, vollflächig oder partiell bedecken. Die partielle Beschichtung des Metallblechs durch die zweite Kunststoffschicht ist zum Beispiel zweckmäßig, wenn das herzustellende Hy- bridbauteil auf der entsprechenden Seite des Metallblechs nur partiell eine Rippenstruktur aus Kunststoff aufweist, die ohne Klebstoff über die partielle Koppelschicht an das Metallblech stoff- schlüssig angebunden ist. Another advantageous embodiment of the semifinished product according to the invention is that 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. From such a semifinished product according to the invention, hybrid components which have structural bodies produced on both sides of plastic, in particular ribbed bodies, can be produced without application of adhesive. In this case, 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.
Eine weitere vorteilhafte Ausgestaltung des erfindungsgemäßen Halbzeugs besteht darin, dass die zweite Kunststoffschicht auf ihrer dem Metallblech abgewandten Seite mit einem zweiten Me- tallblech beschichtet ist. Das zweite Metallblech kann dabei in weiterer Ausgestaltung auf seiner der zweiten Kunststoffschicht abgewandten Seite mit einer dritten thermoplastischen oder duro- plastischen Kunststoffschicht als Koppelschicht beschichtet sein. Auch mit derart ausgestalteten erfindungsgemäßen Halbzeugen lassen sich leichtgewichtige Hybridbauteile mit hoher Festigkeit und Steifigkeit und einer entsprechenden abschirmenden Wirkung kostengünstig hersteilen. Das Gleiche gilt für eine weitere Ausgestaltung des erfindungsgemäßen Halbzeugs, bei welcher die zweite Kunststoffschicht vollflächig oder partiell mit mindestens einem Organoblech beschichtet ist. 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. In a further embodiment, 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. Even with semi-finished products designed in accordance with the invention, lightweight hybrid components having high strength and rigidity and a corresponding shielding effect can be produced inexpensively. The same applies to a further embodiment of the semifinished product according to the invention, in which the second plastic layer is completely or partially coated with at least one organic sheet.
Nach einer weiteren Ausgestaltung des erfindungsgemäßen Halbzeugs ist die jeweilige als Kop- pelschicht dienende Kunststoffschicht mit einer abziehbaren Schutzfolie versehen. Die Schutzfo- lie schützt die Oberfläche der Koppelschicht während des Transportes des Halbzeugs sowie ge- gebenenfalls auch während des Umformens des Halbzeugs. Hierdurch kann vor dem Anformen von Kunststoffstrukturen, beispielsweise Kunststoffrippen, ein aufwendiges Reinigen der Koppel- schichtoberfläche von Verschmutzungen wie Öl oder Fett entfallen. Zudem kann die Schutzfolie als Ziehfolie die Gleiteigenschaften des Halbzeugs beim Umformen verbessern. According to a further embodiment of the semifinished product according to the invention, 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. As a result, prior to the molding of plastic structures, for example plastic ribs, a complex cleaning of the coupling layer surface of contaminants such as oil or grease can be dispensed with. In addition, the protective film as a drawing film can improve the sliding properties of the semifinished product during forming.
Das erfindungsgemäße Halbzeug ist vorzugsweise als Flachprodukt ausgebildet. Es kann mittels einer Plattenpresse in einem statischen Prozess, einer Intervallheizpresse in einem diskontinu- ierlichen Prozess oder in einem kontinuierlichen Prozess in einer Laminieranlage, beispielsweise einer Doppelbandpresse, verarbeitet werden. Die Prozessparameter werden dabei jeweils spezi- ell auf das herzustellende Halbzeug eingestellt. Je nach Halbzeugvariante können daraus Tafeln geschnitten werden, oder das bandförmige Halbzeug kann zu einem Coil aufgerollt werden. Die vorliegende Erfindung betrifft auch ein Verfahren zur Herstellung eines dreidimensional ge- formten Hybridbauteils im Metall/Kunststoffverbund, wobei ein erfindungsgemäßes Halbzeug ver- wendet wird, wobei an die als Koppelschicht ausgebildete Kunststoffschicht durch Spritzgießen, Pressformen, Fließpressen oder thermisches Pressen ein dreidimensionaler Strukturkörper aus Kunststoff (Kunststoffstrukturkörper) stoffschlüssig angeformt wird. 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. Depending on the semifinished product variant, 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.
Wie bereits ausgeführt, ermöglicht das erfindungsgemäße Halbzeug die Herstellung eines drei- dimensional geformten Hybridbauteils aus Metall und Kunststoff mit einem Strukturkörper, vor- zugsweise Rippenkörper, aus Kunststoff ohne Auftrag von Klebstoff. Dies vereinfacht die Herstel- lung des Hybridbauteils deutlich. As already stated, 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.
Eine bevorzugte Ausgestaltung des erfindungsgemäßen Verfahrens besteht darin, dass das Halbzeug vor dem Anformen des Strukturkörpers in eine dreidimensionale Form umgeformt wird. Das Umformen wird dabei vorzugsweise durch Tiefziehen oder Rollformen ausgeführt. 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.
Eine weitere vorteilhafte Ausgestaltung des erfindungsgemäßen Verfahrens ist dadurch gekenn- zeichnet, dass das Halbzeug mittels eines Umformwerkzeuges, das mindestens eine integrierte Spritzgießkavität und mindestens einen in die Spritzgießkavität mündenden Spritzgießkanal auf- weist, umgeformt wird. Diese Ausgestaltung bietet die Möglichkeit, die Anzahl der Prozessschritte zur Herstellung des Hybridbauteils zu reduzieren, indem das Umformen des Halbzeugs bzw. Halbzeugzuschnitts und das Hinterspritzen der Koppelschicht zur Erzeugung des Strukturkör- pers, vorzugsweise Rippenkörpers, im gleichen Prozessschritt durchgeführt werden. 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.
Eine andere vorteilhafte Ausgestaltung des erfindungsgemäßen Verfahrens ist dadurch gekenn- zeichnet, dass das Halbzeug mittels eines Umformwerkzeuges, welches ein Profil mit mindes- tens einer integrierten Kavität zum Verpressen und dreidimensionalen Formen einer Kunststoff- masse aufweist, umgeformt wird. Auch diese Variante bietet die Möglichkeit, die Anzahl der Pro- zessschritte zur Herstellung des Hybridbauteils zu reduzieren, indem das Umformen des Halb- zeugs bzw. Halbzeugzuschnitts und das Verpressen der Kunststoffmasse zur Erzeugung des Strukturkörpers, vorzugsweise Rippenkörpers, auf der Koppelschicht im gleichen Prozessschritt durchgeführt werden. Another advantageous embodiment of the method according to the invention is characterized in that 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.
Eine weitere Variante des erfindungsgemäßen Verfahrens besteht darin, dass das Halbzeug durch Rollformen umgeformt wird, wobei während oder nach dem Umformen des Halbzeugs ein rotierbares, radförmiges Werkzeug zum Pressformen des Strukturkörpers verwendet wird, und das Werkzeug mit einem mindestens eine Kavität aufweisenden Profil zum Verpressen und drei- dimensionalen Formen einer Kunststoffmasse versehen ist. Mit dieser Ausgestaltung des Verfah- rens lassen sich insbesondere als Profilträger ausgebildete Hybridbauteile der genannten Art in Großserie effektiv hersteilen. 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. With this embodiment of the method, in particular hybrid components of the type mentioned can be effectively produced in mass production as profile carriers.
Nach einer weiteren Ausgestaltung des erfindungsgemäßen Verfahrens wird an dem Hybridbau- teil mindestens ein integraler Flansch ausgebildet, der die als Koppelschicht ausgebildete ther- moplastische Kunststoffschicht aufweist, wobei an die Kunststoffschicht ein weiteres als Me- ta Il/Kunststoffverbund ausgeführtes Hybridbauteil oder ein Organoblech durch Schweißen ange- fügt wird. Auf diese Weise lassen sich beispielsweise als Halbschalen ausgebildete Hybridbau- teile kostengünstig zu einem Hohlkanal oder geschlossenen Profil zusammensetzen. Entspre- chendes gilt hinsichtlich einer Kombination eines erfindungsgemäßen Hybridbauteils mit einem den Hohlkanal bzw. das geschlossene Profil begrenzenden Organoblech. Die Schweißverbin- dung der als Halbschalen ausgebildeten Hybridbauteile bzw. des Organoblechs mit einem ein- zelnen Hybridbauteil kann beispielsweise durch Reibschweißen, Punktschweißen, Ultraschall- schweißen etc. erzeugt werden. According to a further embodiment of the method according to the invention, 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. In this way, for example, hybrid components designed as half shells can be inexpensively assembled into a hollow channel or a closed profile. The same applies with regard to a combination of a hybrid component according to the invention with an organic sheet which delimits the hollow channel or the 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.
Gemäß einer dritten Lehre der vorliegenden Erfindung wird das erfindungsgemäße Halbzeug vor- teilhaft zur Herstellung eines dreidimensional geformten Hybridbauteils als Bauteil für ein Fahr- zeug, Flugzeug, Schiff oder Bauwerk verwendet. Vorteile ergeben sich nämlich durch das erfin- dungsgemäße Halbzeug überall dort, wo neben einer Gewichtseinsparung auch eine hohe Ab- schirmung gegen elektromagnetische Strahlung, dynamische oder statische elektrische und/oder dynamische oder statische magnetische Felder gefragt ist und hierzu Hybridbauteile der genann- ten Art in möglichst wenigen Prozessschritten hergestellt werden sollen. According to a third teaching of the present invention, 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.
Die vorliegende betrifft daher auch die Verwendung des erfindungsgemäßen Halbzeugs zur Her- stellung eines dreidimensional geformten Hybridbauteils als Bauteil für ein Fahrzeug, Flugzeug, Schiff, Schienenfahrzeug oder im Maschinenbau, in der Energiebranche oder im Bauwesen. 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.
Des Weiteren betrifft die vorliegende Erfindung auch ein Verfahren zur Abschirmung von elektro- magnetischer Strahlung, dynamischen oder statischen elektrischen und/oder dynamischen oder statischen magnetischen Feldern, dadurch gekennzeichnet, dass Quelle und/oder Senke zumin- dest teilweise mit einem erfindungsgemäßen Halbzeug oder einem daraus geformten Bauteil um- geben werden. Furthermore, 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.
Bei diesem erfindungsgemäßen Verfahren wird die Quelle und/oder Senke der elektromagneti- scher Strahlung, des dynamischen oder statischen elektrischen und/oder dynamischen oder stati- sehen magnetischen Feldern zumindest teilweise von dem erfindungsgemäßen Halbzeug oder einem daraus geformten Bauteil zumindest teilweise umgeben. Ein teilweises Umgeben ist bei- spielsweise dann sinnvoll bzw. erforderlich, wenn die Quelle und/oder Senke im Betrieb erreich- bar sein muss, beispielsweise durch Zu- und/oder Ableitungen und/oder zur Bedienung. Erfin dungsgemäß ist es auch möglich, dass die Quelle und/oder Senke vollständig von dem erfin- dungsgemäßen Halbzeug oder einem daraus geformten Bauteil umgeben ist. Details und bevor- zugte Ausführungsformen, die zu dem erfindungsgemäßen Halbzeug genannt worden sind, sol- len auch hier entsprechend angewendet werden. In this method according to the invention, 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. According to the invention, 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.
Wird das erfindungsgemäße Halbzeug oder ein daraus geformtes Bauteil zum Abschirmen elek- tromagnetischer Strahlung eingesetzt, so weist es beispielsweise eine Dicke von 0,10 bis 4,0 mm, bevorzugt 0,12 bis 2,2 mm, besonders bevorzugt 0,12 bis 1 ,0 mm, auf. If 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.
Die vorliegende Erfindung betrifft auch die Verwendung des erfindungsgemäßen Halbzeugs oder eines daraus geformten Bauteils zur Abschirmung von elektromagnetischer Strahlung, dy- namischen oder statischen elektrischen und/oder dynamischen oder statischen magnetischen Feldern. 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.
Elektromagnetische Strahlung, dynamische oder statische elektrische und/oder dynamische oder statische magnetische Felder entstehen gewollt oder nicht gewollt durch die Verwendung und den Betrieb bestimmter magnetischer, elektrischer oder elektronischer Vorrichtungen. 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.
Die vorliegende Erfindung betrifft in einer besonderen Ausführungsform die erfindungsgemäße Verwendung, wobei zusätzlich eine hohe mechanische Belastbarkeit des Halbzeugs oder eines daraus geformten Bauteils gegeben ist, beispielsweise ausgedrückt durch eine Streckgrenze von mindestens 200 MPa, bevorzugt mindestens 400 MPa, besonders bevorzugt mindestens 750 MPa. Ein besonderer Vorteil der vorliegenden Erfindung ist daher, dass ein Material bereit- gestellt werden kann, das erfindungsgemäß bevorzugt neben einer hohen Abschirmwirkung auch gute mechanische Kennwerte aufweist. In a particular embodiment, 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.
Bevorzugt betrifft die vorliegende Erfindung die erfindungsgemäße Verwendung, wobei Gebäu- de, insbesondere sicherheitsrelevante Gebäude, Räume, Labore, Produktionsstätten, Server- schränke, Schaltschränke, Steckerverbindungen, Halter und Gehäuse, beispielsweise für elek- trische Maschinen Leistungselektronik, Computer, Kommunikationselektronik, Alarmanlagen, Sicherheitstechnik, Brand- und Gasmelder, Schutzhüllen, Ladestationen, Küchengeräte, medi- zinische Geräte, elektronische Geräte, bevorzugt in Automobilen, elektronische Bauteile, Funk- gerate, magnetische Anwendungen, beispielsweise Permanentmagnete, elektronische Bauteile und/oder Batterien, beispielsweise nicht wieder aufladbare Batterien oder Akkumulatoren, ab- geschirmt werden oder das abschirmende Material als Decken- und/oder Wandpanele, als Bo- denbeläge, als Kabelkanäle, in der Messtechnik eingesetzt wird. Preferably, 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.
Nachfolgend wird die Erfindung anhand von Ausführungsbeispielen und darstellenden Zeichnung näher erläutert: The invention will be explained in more detail below with reference to embodiments and illustrative drawing:
Figuren characters
Die in den Figuren 1 , 2 und 3 verwendeten Bezugszeichen haben die folgenden Bedeutungen: The reference symbols used in FIGS. 1, 2 and 3 have the following meanings:
1 Metallblech 1 sheet metal
2 Kunststoffschicht  2 plastic layer
3 Kunststoffstrukturkörper  3 plastic structural body
Figur 1 zeigt ein erfindungsgemäßes tiefziehfähiges, platinen- oder bandförmiges Halbzeug zur Herstellung eines dreidimensional geformten Hybridbauteils im Metall/Kunststoffverbund. 1 shows an inventive thermoformable, platinum or strip-shaped semi-finished product for producing a three-dimensionally shaped hybrid component in the metal / plastic composite.
Figur 2 zeigt ein erfindungsgemäßes dreidimensional geformtes Hybridbauteil im Metall/Kunst- stoffverbund. Figure 2 shows an inventive three-dimensionally shaped hybrid component in the metal / plastic composite.
Figur 3 zeigt ein erfindungsgemäßes dreidimensional geformtes Hybridbauteil im Metall/Kunst- stoffverbund mit aufgebrachtem Kunststoffstrukturkörper. Figure 3 shows an inventive three-dimensionally shaped hybrid component in the metal / plastic composite with applied plastic structural body.
Gewerbliche Anwendbarkeit Industrial Applicability
Das erfindungsgemäße Halbzeug vereint gute mechanische Kennwerte und eine hohe Abschir- mung gegen elektromagnetische Strahlung, dynamische oder statische elektrische und/oder dy- namische oder statische magnetische Felder, so dass daraus vorteilhafte dreidimensional ge- formte Hybridbauteile als Bauteile für ein Fahrzeug, Flugzeug, Schiff oder Bauwerk hergestellt werden können. 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.

Claims

Patentansprüche claims
1. Tiefziehfähiges, platinen- oder bandförmiges Halbzeug zur Herstellung eines dreidimen- sional geformten Hybridbauteils im Metall/Kunststoffverbund, das mindestens ein elektro- magnetische Strahlung, dynamische oder statische elektrische und/oder dynamische oder statische magnetische Felder abschirmendes, platinen- oder bandförmiges Metallblech und mindestens eine auf dem Metallblech stoffschlüssig aufgebrachte thermoplastische, duroplastische oder elastomere Kunststoffschicht aufweist, dadurch gekennzeichnet, dass das Metallblech die folgende Zusammensetzung aufweist (jeweils in Gew.-%) 1. thermoformable, platinen- or band-shaped semi-finished product for producing a three-dimensionally shaped hybrid component in the 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 Has at least one cohesively applied to the metal sheet thermoplastic, thermosetting or elastomeric plastic layer, characterized in that the metal sheet has the following composition (in each case in wt .-%)
- 0,001 bis 2,1 C, - 0.001 to 2.1 C,
0,001 bis 30,00 Mn,  0.001 to 30.00 Mn,
0,001 bis 8,00 Si,  0.001 to 8.00 Si,
- 0,01 bis 4,00 AI,  - 0.01 to 4.00 AI,
0,001 bis 1 ,00 Cr,  0.001 to 1, 00 Cr,
Rest Fe und unvermeidbare Verunreinigungen, und das Halbzeug einen Schirmfaktor S( v) von 1 ,00 bis 120,00 dB bei einem dynamischen, magnetischen Feld oder einem dyna- mischen, elektromagnetischen Feld mit einer Frequenz v von 0,001 bis zu 1000 kHz auf- weist, wobei der Schirmfaktor S(v) aus dem Quotient der Feldstärke gemessen am Ort der Senke mit bzw. ohne zwischen Senke und Quelle befindlichem abschirmendem Ma- terial bestimmt wird. Residual Fe and unavoidable impurities, and the semi-finished product has a screen factor S (v) of 1.00 to 120.00 dB in a dynamic, magnetic field or a dynamic electromagnetic field with a frequency v of 0.001 to 1000 kHz. where the screen factor S (v) is determined from the quotient of the field strength measured at the location of the sink with or without shielding material located between sink and source.
2. Halbzeug nach Anspruch 1 , dadurch gekennzeichnet, dass der Schirmfaktor S(v) des Halbzeugs durch Detektion der Spannung U2(v) in einer zweiten Spule, die durch einen Strom 11 (v) in einer ersten Spule induziert wird, während sich eine Probe des Halbzeugs zwischen der ersten und der zweiten Spule befindet und sich die Spulen in einem Abstand von höchstens 40 mm befinden, ermittelt wird. 2. Semifinished product according to claim 1, characterized in that the screening factor S (v) of the semifinished product by detecting the voltage U2 (v) in a second coil, which is induced by a current 11 (v) in a first coil, while a Sample of semi-finished product between the first and the second coil is located and the coils are at a distance of at most 40 mm, is determined.
3. Halbzeug nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Seite des Metall- blechs, auf welcher die Kunststoffschicht aufgebracht ist, eine die Haftung der Kunststoff- schicht verbessernde Oberfläche aufweist. 3. Semi-finished product according to claim 1 or 2, characterized in that the side of the metal sheet on which the plastic layer is applied has a surface which improves the adhesion of the plastic layer.
4. Halbzeug nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Kunst- stoffschicht als Koppelschicht zur stoffschlüssigen, klebstofflosen Anbindung mindestens eines aus Kunststoff hergestellten oder herzustellenden Strukturkörpers ausgebildet ist. 4. Semi-finished product according to one of claims 1 to 3, characterized in that the plastic layer is formed as a coupling layer for cohesive, adhesive-free connection of at least one made of plastic or produced structural body.
5. Halbzeug nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Metall- blech zusätzlich wenigstens ein Legierungselement ausgewählt aus der Gruppe beste- hend aus As, B, Cu, Ni, Mo, Ti, V, S, P und Sn enthält. 5. Semifinished product according to one of claims 1 to 4, characterized in that the metal sheet additionally at least one alloying element selected from the group consisting of As, B, Cu, Ni, Mo, Ti, V, S, P and Sn contains.
6. Halbzeug nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Schirm- faktor S(v) nach der Gleichung der Formel (I)
Figure imgf000022_0001
bestimmt wird, wobei U2(v) die in der zweiten Spule induzierte Spannung, l-i(v) der in der ersten Spule fließende Strom und l10(v) der Strom in der ersten Spule und U20(v) die Span- nung in der zweiten Spule, jeweils ohne eingebrachte Probe, sind. 6. Semifinished product according to one of claims 1 to 5, characterized in that the screening factor S (v) according to the equation of the formula (I)
Figure imgf000022_0001
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 second coil, each without a sample inserted.
7. Halbzeug nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Metall- blech ein Gefüge enthaltend 0 bis 100 Gew.-% Ferrit, 0 bis 95 Gew.-% Bainit, 0 bis 20 Gew.-% Perlit, 0 bis 100 Gew.-% Martensit oder bis zu 100 Gew.-% Martensit, 0 bis 20 Gew.-% Restaustenit und ggf. Karbide, wobei die Summe jeweils 100 Gew.-% ergibt, auf- weist. 7. Semi-finished product according to one of claims 1 to 6, characterized in that the metal sheet has a structure containing 0 to 100 wt .-% ferrite, 0 to 95 wt .-% bainite, 0 to 20 wt .-% pearlite, 0 to 100% by weight of martensite or up to 100% by weight of martensite, 0 to 20% by weight of retained austenite and optionally carbides, the sum in each case giving 100% by weight.
8. Halbzeug nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der mindes- tens eine thermoplastische Kunststoff ausgewählt ist aus der Gruppe bestehend aus Po- lyolefinen, Polyamiden (PA), Polycarbonaten (PC), thermoplastischen Polyestern, ther- moplastischen Polyurethanen (PU), Polysulfiden (PS), Polyetheretherketonen (PEEK), Polyarylen, aromatischen Polyestern, Polyaramiden, Polyaramid-Fasern, heterocycli- schen Polymeren, Flüssigkristallpolymeren (LCP Liquid Crystalline Polymers), Fluorpoly- meren, Perfluoroxyalkanen, Polyphenylenen, funktionalisierten Varianten der genannten Polymere und Mischungen davon. 8. Semifinished product according to one of claims 1 to 7, characterized in that the at least one thermoplastic material 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 aforementioned Polymers and mixtures thereof.
9. Halbzeug nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der mindes- tens eine duroplastische Kunststoff ausgewählt ist aus der Gruppe bestehend aus Epoxid- harzen (EP), Harnstoff-Formaldehydharzen (UF), Phenol-Formaldehydharzen (PF), Me- lamin-Formaldehydharzen (MF), Melamin/Phenol-Formaldehyden (MPF), duroplasti- schen Polyestern (PES), Polyurethanen (PUR), ungesättigten Polyestern (UP), teilver- netzten (bi-stage) duroplastische Polymere, funktionalisierten Varianten der genannten Polymere und Mischungen davon. 9. Semifinished product according to one of claims 1 to 7, characterized in that the at least one thermosetting plastic is selected from the group consisting of epoxy resins (EP), urea-formaldehyde resins (UF), phenol-formaldehyde resins (PF), me- lamin-formaldehyde resins (MF), melamine / phenol formaldehydes (MPF), thermosetting polyesters (PES), polyurethanes (PUR), unsaturated polyesters (UP), partially crosslinked (bi-stage) thermosetting polymers, functionalized variants of the above Polymers and mixtures thereof.
10. Halbzeug nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der mindes- tens eine elastomere Kunststoff ausgewählt ist aus der Gruppe bestehend aus Naturkau- tschuken (NR), Silicon-Kautschuken (SIR), Silicon-Butadien-Kautschuken (SBR), Polyvi- nylbutyralen (PVB), Polyisobutylenen (PIB), Isopren-Kautschuken (IR), Ethylenvinylace- taten (EVA), Ethylen-Propylen-Dien-Kautschuken (EPDM), Ethylen-Propylen-Copolyme- ren (EPM), Ethylen-Ethylacrylat- Copolymeren (E/EA), Chloropren-Kautschuken (CR), Butadien-Kautschuken (BR), Acrylnitril/ Methylmethacrylaten (A/MMA), Butylkautschuken (I I R), Styrol-Butadien-Styrolen (SBS), Polyether-Block-Amiden (PEBA), funktionalisierten Varianten und Mischungen davon. 10. Semifinished product according to one of claims 1 to 7, characterized in that the at least one elastomeric plastic is selected from the group consisting of natural rubber (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), polyethers Block amides (PEBA), functionalized variants and mixtures thereof.
1 1. Halbzeug nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Kunst- stoffschicht die Seite des Metallblechs, auf welcher sie aufgebracht ist, partiell oder voll- ständig bedeckt. 1 1. Semifinished product according to one of claims 1 to 10, characterized in that the plastic layer, the side of the metal sheet on which it is applied, partially or completely covered.
12. Halbzeug nach einem der Ansprüche 1 bis 1 1 , dadurch gekennzeichnet, dass die thermoplastische, duroplastische oder elastomere Kunststoffschicht doppelt ausgeführt ist, wobei zwischen den beiden Kunststoffschichten eine thermoplastische Schaumstoff- schicht angeordnet ist. 12. Semi-finished product according to one of claims 1 to 1 1, characterized in that the thermoplastic, thermosetting or elastomeric plastic layer is made double, wherein between the two plastic layers, a thermoplastic foam layer is arranged.
13. Verfahren zur Herstellung eines dreidimensional geformten Hybridbauteils im Me- tall/Kunststoffverbund, gekennzeichnet durch die Verwendung eines Halbzeugs gemäß einem der Ansprüche 1 bis 12, wobei an die als Koppelschicht ausgebildete Kunststoff- schicht durch Spritzgießen, Pressformen, thermisches Pressen oder Fließpressen ein dreidimensionaler Strukturkörper aus Kunststoff stoffschlüssig angeformt wird. 13. A method for producing a three-dimensionally shaped hybrid component in the metal / plastic composite, characterized by the use of a semifinished product according to one of claims 1 to 12, wherein the formed as a coupling layer plastic layer by injection molding, compression molding, thermal pressing or extruding a three-dimensional Structural body made of plastic integrally formed.
14. Verwendung des Halbzeugs nach einem der Ansprüche 1 bis 12 zur Herstellung eines dreidimensional geformten Hybridbauteils als Bauteil für ein Fahrzeug, Flugzeug, Schiff, Schienenfahrzeug oder im Maschinenbau, in der Energiebranche oder im Bauwesen. 14. Use of the semifinished product according to one of claims 1 to 12 for producing 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.
15. Verfahren zur Abschirmung von elektromagnetischer Strahlung, dynamischen oder stati- schen elektrischen und/oder dynamischen oder statischen magnetischen Feldern, da- durch gekennzeichnet, dass Quelle und/oder Senke zumindest teilweise mit einem Halb- zeug nach einem der Ansprüche 1 bis 12 oder einem daraus geformten Bauteil umgeben werden. 15. 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 one of claims 1 to 12 or a component formed therefrom.
16. Verwendung des Halbzeugs nach einem der Ansprüche 1 bis 12 oder eines daraus ge- formten Bauteils zur Abschirmung von elektromagnetischer Strahlung, dynamischen oder statischen elektrischen und/oder dynamischen oder statischen magnetischen Fel- dern. 16. Use of the semifinished product according to one of claims 1 to 12 or a component formed therefrom for shielding electromagnetic radiation, dynamic or static electrical and / or dynamic or static magnetic fields.
17. Verwendung nach Anspruch 16, dadurch gekennzeichnet, dass Gebäude, insbesonde- re sicherheitsrelevante Gebäude, Räume, Labore, Produktionsstätten, Serverschränke, Schaltschränke, Steckerverbindungen, Halter und Gehäuse, beispielsweise für elektri- sche Maschinen, Leistungselektronik, Computer, Kommunikationselektronik, Alarmanla- gen, Sicherheitstechnik, Brand- und Gasmelder, Schutzhüllen, Ladestationen, Küchen- geräte, medizinische Geräte, elektronische Geräte, bevorzugt in Automobilen, elektroni- sche Bauteile, Funkgeräte, magnetische Anwendungen, beispielsweise Permanentma- gnete, elektronische Bauteile und/oder Batterien, beispielsweise nicht wieder aufladbare Batterien oder Akkumulatoren, abgeschirmt werden oder das abschirmende Material als Decken- und/oder Wandpanele, als Bodenbeläge, als Kabelkanäle, in der Messtechnik eingesetzt wird. 17. Use according to claim 16, characterized in that buildings, in particular safety-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 gen, safety technology, fire and gas detectors, protective covers, charging stations, kitchen appliances, medical devices, electronic devices, preferably in automobiles, electronic components, radios, magnetic applications, for example permanent magnets, electronic components and / or batteries, for example non-rechargeable batteries or accumulators, shielded or the shielding material is used as ceiling and / or wall panels, as floor coverings, as cable channels, in the measurement technology.
PCT/EP2019/061331 2018-05-09 2019-05-03 Hybrid steel plastic semi-finished product having shielding properties WO2019215020A1 (en)

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