DE102016200667A1 - Method and device for producing a composite material and its use - Google Patents

Abstract

The invention relates to a method for producing a composite material comprising at least two layers of a metallic material and at least one layer of a polymer matrix material arranged between the two layers comprising the following steps: providing a first material in the form of a wound on a federal government metal strip, a second Material in the form of a coiled on a coil metal strip and a third material in the form of a coiled on a coil polymer film, unwinding of the bundles and continuously feeding the metal strips and the polymer film to each preheating unit, preheating the metal strips and the polymer film in the preheating on each at least a preheating temperature and continuous feeding to a laminating lamination calendering unit to produce a composite material under pressure and / or temperature, then continuously feeding the composite materials to mind at least one cooling unit and / or at least one post-processing unit and final cutting of the composite material to sheets or coiling the composite material to a covenant. The object to provide a method and an apparatus for producing a composite material, with which the economy and the production process further optimized and in particular the degree of automation can be increased, is achieved in that the first and the second metal strip between the unwinding and preheating through at least one pretreatment unit, the first metal strip at least one side in a first pretreatment unit in a conditioning station and the second metal strip at least one side in a second pretreatment unit in a conditioning station are conditioned and the respective conditioned sides of the metal strips in the laminating lamination calendering unit the polymer film are brought into contact and joined together.

Description

The invention relates to a method for producing a composite material comprising at least two layers of a metallic material and at least one layer of a polymer matrix material arranged between the two layers comprising the following steps:
Providing a first material in the form of a metal strip wound on a bundle, a second material in the form of a metal strip wound on a bundle and a third material in the form of a polymer film wound on a bundle,
Unwinding the bundles and continuously feeding the metal strips and the polymer film to a respective preheating unit,
Preheating the metal strips and the polymer film in the preheating units to at least one preheating temperature and continuous feeding to a laminating laminating calendering unit for producing a composite material under pressure and / or temperature,
subsequent continuous feeding of the composite material to at least one cooling unit and / or at least one post-processing unit and
final cutting to length of the material composite into sheets or coiling the composite material into a bundle.

Furthermore, the invention relates to a device for producing a composite material comprising at least two layers of a metallic material and comprising at least one layer arranged between the two layers of a polymer matrix material
Means for unwinding a first and second metal strip wound on a bundle and a polymer film wound on a bundle,
Means for preheating the metal strips and the plastic film,
Laminating-laminating-calendering the metal strips with the polymer film to produce a composite material under pressure and / or temperature,
Means for cooling and / or reworking the composite material,
Means for driving and / or guiding the metal strips, the plastic film and / or the composite material and
Means for cutting or coiling the composite material.

Furthermore, the invention relates to a use of the composite material.

In international disclosure WO 2009/043777 A1 The applicant discloses a method and an apparatus for producing a sandwich composite comprising at least two layers of a metallic material and at least one layer of a polymer matrix material arranged between the two layers. In the 3 It is shown that a first material in the form of a wound on a coil metal strip, a second material in the form of wound on a coil metal strip and a third material are provided in the form of wound on a coil of polymer film, which is unwound and continuously fed to a preheating unit be in which the metal strips and the plastic film are preheated to at least one preheating and continuously fed to a laminating unit (double belt press) to produce a composite material under pressure and / or temperature. Subsequently, the composite material is fed continuously at least one cooling unit and / or a post-processing unit and finally cut to sheets or wound into a coil. In order to improve the adhesion properties between the polymer matrix material and the metallic material (s) within the sandwich material, it is proposed to apply a bonding lacquer, which can be applied by the coating process, to the metal sheet. Accordingly, metal bands are provided for the production of composite materials, which are already coated with a primer / primer layer.

Such conditioning is done outside the continuous laminating process. Therefore, methods and devices for producing composite materials can be even more cost-effective design and further optimize, with the degree of automation can be increased. Based on this prior art, the object of the present invention is to provide a method and a device for producing a material composite with which the cost-effectiveness and the production process can be further optimized and, in particular, the degree of automation can be increased.

The object is achieved in accordance with a method according to the invention in that the first and the second metal strip pass through at least one pretreatment unit between the unwinding and the preheating units, the first metal strip at least on one side in a first pretreatment unit in a conditioning station and the second metal strip at least on one side in a second Pre-treatment unit are conditioned in a conditioning station and the respective conditioned sides of the metal strips in the laminating lamination calendering unit are brought into contact with the polymer film and joined together.

In the method according to the invention, there is no longer any need for the metal strips to be conditioned separately in upstream processes, in which case not only the adhesion properties in the composite material but also the forming and sliding properties of the composite material can be positively influenced. With the integration of the conditioning of the metal strips in the continuous laminating-lamination-calendering process for the production of material composites, the production process in comparison to the known state of the art even more cost-effective design and further optimize and at the same time the degree of automation can be increased.

According to a first embodiment of the method according to the invention, the metal strips are coated in the conditioning stations by means of application, in particular by means of spraying, by knife coating or preferably by means of coating with an adhesion promoter and / or adhesive system and / or conditioning agent and / or chemically and / or physically, preferably by means of plasma , activated. The at least one-sided coating of the metal strips in the coating process with a bonding agent and / or adhesive system and / or conditioning agent is particularly preferred since the coating can be reproducibly and economically applied at low tolerances. The coating thickness of the applied wet film is between 0.001 and 0.1 mm, in particular between 0.001 and 0.05 mm, preferably between 0.001 and 0.03 mm, particularly preferably between 0.001 and 0.02 mm. The alternative or cumulative at least one-sided activation of the metal strips is preferably carried out by means of plasma for the chemical, mechanical and / or physical adjustment of the adhesion as well as the forming and / or sliding properties.

According to a further embodiment of the method according to the invention, the metal strips pass through a drying station after the conditioning station. After the activation and / or preferably after the coating of the metal strips with an adhesion promoter and / or adhesive system and / or conditioning agent, the metal strip passes through at least one drying station, in which the preferably usually applied in liquid form adhesion promoter and / or the adhesive system and / or Conditioner is dried at a temperature between room temperature and preferably below the decomposition temperature of the adhesion promoter used and / or adhesive system and / or conditioning to ensure that the applied adhesion promoter and / or the adhesive system and / or conditioning agent remains on the metal strip, which then can be safely supplied to the further process steps. A drying can be omitted, for example, in a plasma treatment.

According to a further embodiment of the method according to the invention, the metal strips in the pretreatment units pass through at least one straightening, cutting and / or cleaning station upstream of the conditioning station. In the straightening station, which is arranged in particular in the process direction behind the unwinding of the metal bands (unwinding station), the stresses contained in the metal band, which can lead to a rippling in the unwound state, can be compensated or directed by stretch-bend application , so that the further process steps, a metal strip can be fed with a defined flatness. In the cutting station, the metal strips can be trimmed continuously along their longitudinal edges in order to be able to supply the further process steps with a metal strip having a defined width and / or defined strip edge design. In the cleaning station, the metal strips, in particular the surfaces of the metal strips, can be cleaned and / or degreased in order to be able to provide at least one clean surface for the activation and / or coating of the metal strips in the conditioning station.

According to a further embodiment of the method according to the invention, the composite material is selectively cooled after the lamination-laminating calender unit in the cooling unit in at least one cooling station, in particular in two cooling stations. In the at least one cooling station, the cooling can take place actively via suitable means or passively, for example via a free air gap. By cooling in at least one cooling station, the composite material can be supplied to the further process steps, in particular to ensure that other stations are not thermally stressed, the composite material leaves the cooling unit with a temperature below 100 ° C.

According to a further embodiment of the method according to the invention, the composite material in the post-processing unit passes through at least one cutting, one straightening, one inspection and / or one coating station. In the cutting station, the material composite can be trimmed continuously along its longitudinal edges in order to be able to impart to the composite material a defined width and / or a defined edge orientation. In the straightening station, the stresses generated in the material combination by the stresses generated in the process steps under the action of temperature and / or pressure can be compensated or directed by stretch bend application, in order to give the material composite a high dimensional stability and flatness and / or to be able to give evenness. In the inspection station, the material composite can be checked for surface, flatness, flatness and / or geometry errors in order to be able to automatically classify and document them, for example, when a corresponding error occurs. In the coating station, the composite material can be coated, for example, with a protective layer, a primer layer, a lacquer layer and / or a forming aid layer, preferably with a corrosion protection oil in order to be able to provide temporary corrosion protection, at least until further processing of the composite material.

According to a further embodiment of the method according to the invention, a continuous guidance of the first and / or the second metal strip via corresponding means at least between the conditioning station and the laminating laminating calendering unit preferably takes place such that the conditioned, preferably with an adhesion promoter and / or an adhesive system and / or conditioner-coated side of the metal strip does not come into contact with the means for guiding, thereby contaminating the means by possible adherence of conditioning ingredients as well as contamination or damage, for example by partial detachment of the adhesion promoter and / or adhesive system and / or or conditioner, to preclude the conditioned side of the metal band.

In accordance with a further embodiment of the method according to the invention, the metal strips and the polymer film of the laminating / laminating calendering unit, which has a laminating / laminating calendering station with a pair of laminating rollers forming a laminating nip, are supplied in such a way that the composite material is laminated in a laminating laminate Calendering station is generated.

According to an alternative embodiment of the method according to the invention, the metal strips and the polymer film of the laminating lamination-calendering unit comprising a first laminating lamination calendering station with a first laminating roller pair forming a laminating nip and a second laminating lamination calendering station a second laminating roller pair forming a laminating nip, supplied in such a way that in the first laminating laminating calendering station the second metal strip is connected to the polymer film to form a metal-polymer composite and in the second laminating laminating calender station the metal-polymer composite is connected to the first metal strip to form a composite material, wherein the composite material is produced in two laminating laminating calendering stations.

According to a further embodiment of the method according to the invention, an aluminum, magnesium or steel material as the first and / or second metal strip and a thermosetting or thermoplastic polymer matrix as a polymer film, wherein the polymer matrix can be reinforced and / or filled. Preferred polymers can be, for example, systems based on PA, PE, PP and / or mixtures thereof and also polyesters and / or polyacrylates. If a steel material is used, it is coated, for example, inorganic and / or organic coated. Preferably, a metallic corrosion protection layer is provided as a coating, in particular based on preferably zinc, and / or mixtures with aluminum and / or magnesium, which was applied to the steel material in the hot-dip or particularly preferably in the electrolytic deposition process. Alternatively, for example, tinned and / or chrome-plated steel bands are conceivable. The material thickness of the first and / or the second metal strip is at most 1.5 mm, in particular at most 1.0 mm, preferably at most 0.5 mm and particularly preferably at most 0.35 mm and the material thickness of the polymer film is at most 20.0 mm, in particular at most 15.0 mm, preferably at most 10.0 mm, particularly preferably at most 5.0 mm. The metal strips each have a material thickness of at least 0.05 mm, preferably at least 0.1 mm, and the polymer film has a material thickness of at least 0.02 mm, in particular at least 0.05 mm, preferably at least 0.1 mm.

According to a second aspect, the object is achieved with a device in that the device comprises means for pretreating at least the first and the second metal strip, wherein the means for pretreatment comprises a first pretreatment unit having a first conditioning station for at least one-side conditioning of the first metal strip and a second Pre-treatment unit comprising a conditioning station for at least one-sided conditioning of the second metal strip.

In the apparatus according to the invention, the conditioning of the metal strips is integrated in the continuous laminating-laminating-calendering process for the production of material composites, so that the production process can be designed more economically and further optimized, and in particular the degree of automation can be increased.

According to a first embodiment of the device according to the invention, the conditioning stations comprise means for applying a coating, in particular means for spraying, doctoring or preferably a coater for coating an adhesion promoter and / or Glue system and / or conditioning agent and / or means for chemical and / or physical activation, preferably by means of plasma. Coater can be used economically and reprozierbar for at least one-sided coating of metal strips. Alternatively or cumulatively, it is possible to use plasma devices which, for example, operate at atmospheric pressure and can activate the metal strips reliably and reproducibly at least one-sidedly.

According to a further embodiment of the device according to the invention, the device for the metal strips each comprise at least one drying station. The drying station, which is arranged, in particular in the process direction, behind the conditioning station of the metal strips, comprises at least one heating device for drying the preferably in the conditioning station in liquid form applied adhesion promoter and / or adhesive system and / or conditioning, for example a circulating air dryer.

According to a further embodiment of the device according to the invention, the pretreatment units each comprise at least one straightening, cutting and / or cleaning station. The straightening station comprises at least one means for straightening the coiled-off metal strip, preferably a straightening machine. The cutting station comprises at least one means for trimming the longitudinal edges of the metal strip, for example a trimming scissors. The cleaning station comprises at least one means for cleaning and / or degreasing the metal strip, for example a brush for mechanical cleaning and / or preferably a system for chemical cleaning with a device for applying or immersing the metal strip with or in a solution of chemicals, a flushing device for rinsing the metal strip afflicted with the solution and optionally a drying device for drying the rinsed metal strip.

According to a further embodiment of the device according to the invention, the cooling unit comprises at least one cooling station and / or the post-processing unit at least one cutting, a straightening, an inspection and / or a coating station. The cooling station comprises at least one (active) means for cooling the composite material, for example an air cooler. Alternatively, a passive cooling, for example, take place via a free cooling section. The cutting station comprises at least one means for trimming the longitudinal edges of the composite material, for example a trimming scissors. The straightening station comprises at least one means for smoothing the composite material, for example a straightening machine. The inspection station comprises at least one means for testing the material composite with regard to surface, flatness, flatness and / or geometry errors, for example a measuring system with an evaluation unit. The coating station comprises at least one means for coating the composite material, for example an electrostatic coating system.

According to a further embodiment of the apparatus according to the invention, the laminating / laminating calendering unit comprises at least one laminating lamination calendering station, preferably two laminating lamination calendering stations. The at least first laminating lamination calendering station comprises at least one means for laminating-laminating-calendering at least one metal strip with a polymer film, preferably a co-laminating pair of rollers. In two laminating lamination calendering stations, each individual station comprises at least one laminating / laminating calendering means, preferably each co-laminating laminating roller pair. The construction of Kaschierwalzenpaars is compact and relatively easy to use and compared to the use of double belt presses cheaper.

According to a third aspect, the invention relates to a use of a composite material produced according to at least one embodiment of the method for producing a component, in particular for vehicle construction, preferably as a body part of a vehicle, in particular as part of a body component or as a chassis part of a vehicle, in particular as part of a Suspension component, particularly preferred for passenger cars, commercial vehicles, trucks, special vehicles, buses, buses, whether with internal combustion engine and / or electric drive, but also in track-bound vehicles, such as trams or personal wagons. Furthermore, the composite material produced according to the invention can be used as a component for the ship, aircraft, plant, mechanical engineering, household goods or construction sector.

In the following the invention will be explained in more detail with reference to an illustrative drawing. Identical parts are provided with the same reference numerals. It shows

1 ): a first embodiment of an apparatus for producing a composite material in a schematic view,

2 ): a second embodiment of an apparatus for producing a composite material in a schematic view,

3 ): A third embodiment of an apparatus for producing a composite material in a schematic view and

4 ): A fourth embodiment of an apparatus for producing a composite material in a schematic view.

In 1 ) is a first embodiment of a device according to the invention ( 1 ) for producing a composite material ( 2 ) is shown in a schematic view. The composite material ( 2 ) has at least two layers of a metallic material and at least one layer of a polymer matrix material arranged between the two metallic layers. Aluminum, magnesium or steel material are suitable as first and / or second metal strip ( 3 . 4 ) and a polymer matrix material based on thermosetting or, for example, thermoplastic, for example, also filled and / or reinforced, as a polymer film ( 5 ) be used. Preferred polymers are, for example, systems based on PA, PE, PP and / or mixtures thereof and also polyesters and / or polyacrylates. Preferably, a coated steel material is used with a zinc-based coating which is, for example, electrolytically coated. A combination of different metallic materials is conceivable. A first material in the form of a wound on a collar first metal strip ( 3 ), a second material in the form of a wound on a collar second metal strip ( 4 ) and a third material in the form of a wound on a federal government polymer film ( 5 ) are provided and sent to the manufacturing process by means of uncoiling ( 6 . 7 . 8th ) of the wound on a bundle first and second metal strip ( 3 . 4 ) and the wound on a bunch of polymer film ( 5 ) continuously to each preheating with means for preheating ( 9 . 10 . 11 ) of metal bands ( 3 . 4 ) and the polymer film ( 5 ). The process direction is indicated by an arrow.

The preheating units ( 9 . 10 . 11 ) comprise means, for example inductor, conductor-convector and / or infrared / laser / LED radiators and are in particular arranged within an enclosure, which then act as a continuous furnace. Alternatively, other heating systems are possible, for example, with circulating air-powered systems.

Preheating the metal strips ( 3 . 4 ) takes place, for example, in continuous furnaces ( 9 . 10 ) in each case at least one preheating temperature which, depending on the nature of the metallic material used, can be between room temperature and decomposition temperature of the coating, in particular between 150 ° C. and 275 ° C., and the preheating of the polymer film ( 5 ), for example in a continuous furnace ( 11 ), depending on the polymer matrix material used, at preheating for example in a mixture of PE and PA between room temperature and 150 ° C, in particular between room temperature and 125 ° C, preferably between room temperature and 100 ° C, to a sufficient temperature for the subsequent laminating Laminating calendering step. The preheated metal bands ( 3 . 4 ) and the preheated polymer film ( 5 ) after leaving the furnaces ( 9 . 10 . 11 ) continuously to a laminating / laminating calendering unit ( 12 ) for producing a composite material ( 2 ). Means for laminating metal strips ( 3 . 4 ) with the polymer film ( 5 ) for producing a composite material ( 2 ) under pressure and / or temperature comprise at least one laminating lamination calendering station ( 12.1 ) with a laminating gap ( 12:12 ) forming laminating roller pair ( 12:11 ). The laminating roller pair ( 12:11 ), which is drivable by means not shown, takes the preheated metal strips ( 3 . 4 ) and between the metal bands ( 3 . 4 ) supplied preheated polymer film ( 5 ) and laminates or combines these into a composite material ( 2 ). The rollers of the laminating roller pair ( 12:11 ) are movable, for example, by means not shown against each other or apart, symbolized by a double arrow shown, whereby the distance between the Kaschierwalzenpaar ( 12:11 ) and thus the clear width of the laminating gap ( 12:12 ) can be adjusted as needed. The clear width of the laminating gap ( 12:12 ) during the laminating-lamination-calendering process at most equal to the sum of the respective thicknesses of the metal strips ( 3 . 4 ) and the polymer film ( 5 ) in the delivery state, preferably, the clear width is lower to exert a defined pressure on the composite material to be produced for laminating-laminating-calendering. By preheating the metal bands ( 3 . 4 ) in each case at least one preheating temperature, in particular for activating the conditioning, preferably of the adhesion promoter and / or adhesive system and / or conditioning agent, and the preheating of the polymer film ( 5 ) to at least one preheating temperature, in particular for activation, the required temperatures for connecting the first metal strip ( 3 ) with the polymer film ( 5 ) and the second metal band ( 4 ) alternatively or cumulatively to the applied pressure for laminating-laminating-calendering, wherein the composite material ( 2 ) in the laminating lamination calendering station ( 12 ) is produced. If, for example, the required temperatures, depending on the nature of the tapes and films to be joined, can not be adjusted by the preheating units, the laminating roller pair can have means for tempering, not shown here, in order to be able to provide the required heat / temperature.

After leaving the laminating Larninier calendering unit ( 12 ) the composite material ( 2 ) continuously a cooling unit ( 13 ), which at least one cooling station ( 13.1 ) with at least one means for cooling the composite material ( 2 ), for example, an air cooler, which the composite material ( 2 ) cools such that in the further process steps in particular it can be ensured that other stations are not thermally stressed. Alternatively, the cooling unit may also be designed as a free air gap. For example, the composite material ( 2 ) the cooling unit ( 13 ) with a temperature below 100 ° C. Like the means for driving the metal bands ( 3 . 4 ), the polymer film ( 5 ) and / or the composite material ( 2 ), the person skilled in the art knows, in particular at which points in the process chain, for example so-called drivers should be taken into account, in order to be able to ensure a continuous process. As a means for driving, at least the laminating lamination calendering station ( 12.1 ), which, as already described, an actively driven laminating roller pair ( 12:11 ) having. The means for guiding are indicated by the reference numeral ( 27 ), in particular for deflecting the metal strips ( 3 . 4 ), whereby as further means for guiding also the units already described ( 6 . 7 . 8th . 12 ). Finally, the cooled material composite ( 2 ) continuously either a means for cutting to length ( 14 ) of the composite material ( 2 ) to sheets, for example a drum shears, or a means for coiling ( 15 ) of the composite material ( 2 ) fed to a covenant.

To produce material composites ( 2 ) be interpreted more economically and further optimize and in particular to be able to increase the degree of automation, according to the invention undergo the first and the second metal strip ( 3 . 4 ) between the unwinding and the preheating units ( 9 . 10 ) at least one pretreatment unit ( 16 . 17 ), wherein the first metal strip ( 3 ) at least one side in a first pretreatment unit ( 16 ) in a conditioning station ( 16.1 ) and the second metal band ( 4 ) at least one side in a second pretreatment unit ( 17 ) in a conditioning station ( 17.1 ) and the respective conditioned sides of the metal strips in the laminating unit ( 12 ) with the plastic film ( 5 ) and connected with each other. The conditioning stations ( 16.1 . 17.1 ) comprise means for applying a coating ( 16:11 . 17:11 ), in particular for spraying, for doctoring or preferably a coater for coating with a primer and / or adhesive system and / or conditioning agent, and / or means for chemical and / or physical activation, preferably by means of plasma. The at least one-sided coating ( 16:11 . 17:11 ) of metal bands ( 3 . 4 ) particularly preferably by means of coil coating with a bonding agent and / or adhesive system and / or conditioning, can be reproducibly and economically applied at low tolerances. The coating thickness of the applied wet film is between 0.001 and 0.1 mm, in particular between 0.001 and 0.05 mm, preferably between 0.001 and 0.03 mm, particularly preferably between 0.001 and 0.02 mm. The alternative or cumulative at least one-sided activation of the metal bands ( 3 . 4 ) is preferably carried out by means of plasma for chemical, mechanical and / or physical adjustment of the adhesion as well as the forming and / or sliding properties of the composite material ( 2 ).

2 ) shows a second embodiment of a device according to the invention ( 1' ) for producing a composite material ( 2 ) in a schematic view. The individual stations of the device ( 1 ) of the first embodiment can also be found in the second embodiment, but with the difference that the metal strips ( 3 . 4 ) in the pretreatment units ( 16 . 17 ) in front of the conditioning station ( 16.1 . 17.1 ) at least one straightening station ( 20 . 21 ), which in the metal strip ( 3 . 4 ), which can lead to a rippling in the unwound state, can be compensated by stretch-bend application or directed specifically, so that the further process steps a flat metal strip ( 3 . 4 ) can be supplied. After the straightening stations ( 20 . 21 ) pass through the metal bands ( 3 . 4 ) each one interface station ( 22 . 23 ), in which the metal strips ( 3 . 4 ) are continuously trimmed along their longitudinal edges, in order to further process a metal strip ( 3 . 4 ) with a defined width and / or a defined edge alignment. After the interface stations ( 22 . 23 ) pass through the metal bands ( 3 . 4 ) one cleaning station each ( 24 . 25 ), in which the metal strips ( 3 . 4 ), in particular the surfaces of the metal strips ( 3 . 4 ) and / or degreased to at least one clean surface for the activation and / or coating of the metal strips ( 3 . 4 ) in the conditioning station ( 16.1 . 17.1 ). After activation and / or preferably after the coating of the metal strips ( 3 . 4 ) with a bonding agent and / or adhesive system and / or conditioning agent pass through the metal strips ( 3 . 4 ) at least one drying station ( 18 . 19 ), in which the preferably usually applied in liquid form adhesion promoter and / or the adhesive system and / or conditioning agent at a temperature between room temperature and preferably below the decomposition temperature of the adhesion promoter and / or adhesive system and / or conditioning used is dried to secure make sure that the applied adhesion promoter and / or the Adhesive system and / or conditioning agent on the metal strips ( 3 . 4 ), which then the further process steps, in particular the preheating units ( 9 . 10 ) can be safely supplied. The preheated metal bands ( 3 . 4 ) and the preheated plastic film ( 5 ) are continuously fed to a laminating / laminating calendering unit ( 12 ' ) for producing a composite material ( 2 ). The laminating lamination calendering unit ( 12 ' ) comprises at least one laminating lamination calendering station ( 12'.1 ) with a laminating gap ( 12'.12 ) forming laminating roller pair ( 12'.11 ), which the preheated metal strips ( 3 . 4 ) and between the metal bands ( 3 . 4 ) supplied preheated polymer film ( 5 ) and laminates these in such a way that the metal strips ( 3 . 4 ) the metallic outer layers and the polymer film ( 5 ) the core layer between the outer layers of the composite material ( 2 ) form. The laminating lamination calendering unit ( 12 ' ) further comprises at least one means for reheating ( 12'.31 . 12'.32 ) and / or lamination ( 12'.41 . 12'.42 ), whereby the material composite ( 2 ) after leaving the laminating lamination calendering station ( 12'.1 ) continuously to a first reheating station ( 12'.31 ) for reheating or reheating the composite material ( 2 ) is supplied to at least one heating temperature, which is higher than the preheating temperature of the polymer film ( 5 ), in particular between 100 ° C and 300 ° C, to melt the core layer between the metallic outer layers. After leaving the reheating station ( 12'.31 ), the through-heated material composite ( 2 ) continuously a Nachkaschierstation ( 12'.41 ) supplied to the entire cross-section by targeted and defined pressurization high adhesion and / or forming and / or sliding properties and specific thickness in the composite material ( 2 ) between the individual layers. After leaving the Nachkaschierstation ( 12'.41 ), this process, if necessary, in particular to further improve the adhesion again, by a reheating of the composite material ( 2 ) in a second reheating station ( 12'.32 ) and then continuously feeding a second Nachkaschierstation ( 12'.42 ), the conditions being essentially the same as in stations ( 12'.31 . 12'.41 ). The composite material ( 2 ) is then continuously at least one cooling unit ( 13 ), which is a first cooling station ( 13.1 ), for example an air cooler, in which the composite material ( 2 ) is cooled selectively to a first temperature, and a second cooling station ( 13.2 ), for example an air cooler, in which the composite material ( 2 ) is further selectively cooled to a second temperature lower than the first one. By active cooling in the cooling unit ( 13 ), the composite material ( 2 ) are supplied to the further process steps, in particular the post-processing steps, in particular to ensure that further subsequent stations are not thermally stressed. The cooled composite material ( 2 ) is a post-processing unit ( 26 ), comprising at least one interface station ( 26.1 ) with at least one means for trimming the longitudinal edges of the composite material ( 2 ), for example a trimming scissors, a straightening station ( 26.2 ) with at least one means for smoothing the composite material ( 2 ), for example a straightening machine, an inspection station ( 26.3 ) with at least one means of testing the composite material ( 2 ) with regard to surface, flatness, flatness and / or geometry errors, for example a measuring system with an evaluation unit, a coating station ( 26.4 ) with at least one means for coating the composite material ( 2 ), for example an electrostatic coating system. After passing through the post-processing unit ( 26 ), the composite material ( 2 ) are either tabulated into sheets or wound up into a bunch.

3 ) shows a third embodiment of a device according to the invention ( 1'' ) for producing a composite material ( 2 ) in a schematic view. Also in this embodiment, the individual stations of the first and the second embodiment can be found again and it is therefore only on the differences, especially with regard to the 2 ). The laminating lamination calendering unit ( 12 '' ), in addition to the already explained in the second embodiment stations, a first laminating lamination calendering station ( 12 ''. 1 ) and a second laminating Larninier calendering station ( 12 ''. 2 ). The preheated second metal strip ( 4 ) and the preheated polymer film ( 5 ) to a first laminating Larninier calendering station ( 12 ''. 1 ), which first a laminating gap ( 12 ''. 12 ) forming laminating roller pair ( 12 ''. 11 ) are fed continuously and become a metal-polymer composite ( 2 ' ) laminated or connected. The metal-polymer composite ( 2 ' ) goes through after the first laminating a reheating station ( 12 ''. 33 ) for reheating or heating of the metal-polymer composite ( 2 ' ) to at least one heating temperature which is higher than the preheating temperature of the polymer film ( 5 ) in preparation for a second laminating lamination calendering. The through-heated metal-polymer composite ( 2 ' ) and the preheated first metal strip ( 3 ) are fed to a second laminating lamination calendering station ( 12 ''. 2 ), which a second a laminating gap ( 12 ''. 22 ) forming laminating roller pair ( 12 ''. 21 ), fed continuously and become a composite material ( 2 ) laminated or connected. The composite material ( 2 ) is placed in two laminating lamination calendering stations ( 12 ''. 1 . 12 ''. 2 ) generated. The reheating stations ( 12 ''. 31 . 12 ''. 32 ) and Nachkaschierstationen ( 12 ''. 41 . 12 ''. 42 ) can be omitted if necessary.

In 4 ) is a fourth embodiment of a device according to the invention ( 1''' ). It is only part of the device ( 1''' ), which has differences compared to the previously described embodiments, in that in particular the first metal strip ( 3 ), which in the course of producing the composite material ( 2 ) the upper metallic outer layer forms, between the unwinding and the preheating unit ( 9 ) a pretreatment unit ( 16 ), the metal strip ( 3 ) in the pretreatment unit ( 16 ) at least one side in a conditioning station ( 16.1 ), preferably coated with an adhesion promoter and / or adhesive system and / or conditioning agent, the metal strip ( 3 ) with the one-sided coating ( 16:11 ) a drying station ( 18 ), in which the adhesion promoter and / or the adhesive system and / or conditioning agent is dried, is supplied continuously, the metal strip ( 3 ) in the preheating unit ( 9 ) and then a laminating calendering unit ( 12 ' ) which comprises at least one laminating lamination calendering station ( . 12 '''1 ). A continuous guidance of the metal band ( 3 ) via appropriate means ( 27 ) takes place at least between the conditioning station ( 16.1 ) and the laminating lamination calendering unit ( 12 ' ) such that the conditioned side, preferably the side coated with an adhesion promoter and / or adhesive system and / or conditioning substance ( 16:11 ) of the metal strip ( 3 ) not in contact with the means for guiding ( 27 ), thereby reducing pollution ( 27 ) by a possible adherence of conditioning constituents as well as an impurity or damage, for example by partial detachment of the adhesion promoter and / or adhesive system and / or conditioning agent, of the conditioned side ( 16:11 ) of the metal strip ( 3 ) exclude.

The reference number ( 28 ) symbolizes a separating / threading station, which means for completely severing the metal strip ( 3 ) and means for threading the separated metal strip ( 3 ). In the separation / Einfädelstation may inter alia auxiliary memory (buffer) and / or handling systems may be provided. In particular during the start-up process until the defined operating parameters are reached, in particular in the pretreatment unit ( 16 ), the conditioning, preferably the coated adhesion promoter and / or the coated adhesive system and / or the coated conditioning agent by means of dryer ( 18 ) dried or dried on first and on a means for coiling ( 29 ) is wound up, shown here in dashes. Suitably dried means that the layers do not bond with one another during coiling or do not adhere or are damaged. In this phase, no preheating takes place in the preheating unit ( 9 ). Once the defined operating parameters have been reached, the preheating unit ( 9 ), the metal strip ( 3 ) is severed and a threading aid in the process direction of laminating lamination calendering unit ( 12 ' ). The laminating lamination calendering unit ( 12 ' ), a laminating lamination calendering station ( . 12 '''1 ) with a laminating gap ( 12 '''. 12 ) having laminating roller pair ( 12 '''. 11 ) comprising a preheated first metal strip ( 3 ), a preheated polymer film ( 5 ) and a preheated second metal strip ( 4 ), shown here in dashed lines, are supplied continuously, or else comprise two laminating stations, in which case the second laminating station has a preheated first metal strip ( 3 ) and a through-heated metal-polymer composite ( 2 ' ) for producing a composite material ( 2 ), as well 3 ).

The invention is not limited to the embodiments, but may also include further embodiments. For example, the device according to the invention may also comprise further components, in particular in each case a further uncoiling station to the stations already shown, connecting stations, in particular staplers for connecting a tape start at a tape end respectively a Folienanfangs at one end of the film, Schlingenspeicher each at least one of the metal bands, the polymer film and the composite material. The layers for producing a composite material are not limited to three, but the layer structure is arbitrary.

LIST OF REFERENCE NUMBERS

1, 1 ', 1' ', 1' ''

contraption

2

Composite material

2 '

Metal-polymer composite

3, 4

metal band

5

polymer film

6, 7, 8

Uncoiler, means for unwinding

9, 10, 11

preheating

12, 12 ', 12' ', 12' ''

Laminating laminating calendering unit

12.1, 12'.1, 12 '', 1, 12 '' ', 1, 12' ', 2

Laminating laminating calendering station

12.11, 12'.11, 12 '', 11, 12 '' ', 11, 12' ', 21

laminating rollers

12.12, 12'.12, 12 '', 12, 12 '', 22, 12 '' '12

laminating nip

12'.31, 12'.32, 12 '', 31, 12 '', 32

Nachwärmstation

12'.41, 12'.42, 12 '', 41, 12 '', 42

Nachkaschierstation

13

cooling unit

13.1, 13.2

cooling station

14

Means for cutting to length

15, 29

Means for coiling

16, 17

pretreatment unit

16.1, 17.1

conditioning station

16.11, 17.11

one-sided conditioning

18, 19

drying station

20, 21

straightening station

22, 23

cutting station

24, 25

cleaning station

26

post-processing unit

26.1

cutting station

26.2

straightening station

26.3

inspection station

26.4

coating station

27

To lead means

28

Sheet / threading

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2009/043777 A1 [0004]

Claims (17)

A method for producing a composite material comprising at least two layers of a metallic material and at least one layer of a polymer matrix material disposed between the two layers comprising the steps of: providing a first material in the form of a metal strip wound on a collar, a second material in the form a metal strip wound on a bundle and a third material in the form of a polymer film wound on a bundle, uncoiling the bundles and continuously feeding the metal strips and the polymer film to a respective preheating unit, preheating the metal strips and the polymer film in the preheating units to at least one Preheating temperature and continuous feeding to a laminating laminating calendering unit to produce a composite material under pressure and / or temperature, - then continuously feeding the composite material to at least one R cooling unit and / or a post-processing unit and - final cutting of the composite material to sheets or coiling the composite material to a collar, characterized in that the first and the second metal strip between the unwinding and preheating at least pass through each of a pretreatment unit, the first metal strip at least one side in a first pretreatment unit in a conditioning station and the second metal strip are conditioned at least one side in a second pretreatment unit in a conditioning station and the respective conditioned sides of the metal strips in the laminating laminating calendering unit are brought into contact with the polymer film and bonded together. A method according to claim 1, characterized in that the metal strips are coated in the conditioning stations by means of application, in particular by means of spraying, by knife coating or preferably by means of coating with an adhesion promoter and / or adhesive system and / or a conditioning agent and / or chemically and / or physically, preferably by means of plasma. A method according to claim 1 or 2, characterized in that the metal strips pass through a drying station after the conditioning station. Method according to one of the preceding claims, characterized in that the metal strips in the pretreatment before the conditioning station at least one straightening, a cutting and / or a cleaning station. Method according to one of the preceding claims, characterized in that the composite material after the laminating lamination calendering unit in the cooling unit is cooled specifically in at least one cooling station, in particular in two cooling stations. Method according to one of the preceding claims, characterized in that the composite material in the post-processing unit passes through at least one cutting, a straightening, an inspection and / or a coating station. Method according to one of the preceding claims, characterized in that a continuous guidance of the first and / or the second metal strip via corresponding means at least between the conditioning station and the laminating lamination-calendering unit preferably takes place such that the conditioned, preferably with a Adhesive and / or an adhesive system coated side of the metal strip does not come into contact with the means for guiding. Method according to one of the preceding claims, characterized in that the metal strips and the polymer film of the laminating lamination calendering unit, which has a laminating laminating calendering station with a Kaschierspalt forming Kaschierwalzenpaar are supplied in such a way that the composite material in a laminating lamination calendering station is generated. Method according to one of the preceding claims 1 to 7, characterized in that the metal strips and the polymer film of the laminating laminating calendering unit, which comprises a first laminating lamination calendering station with a first pair of laminating rollers forming a laminating nip and a second laminating Laminating calendering station having a second laminating roller pair forming a laminating nip, are supplied in such a way that in the first laminating lamination calendering station the second metal strip is connected to the polymer film to form a metal-polymer composite and in the second laminating lamination Calendering station of the metal-polymer composite is connected to the first metal strip to form a composite material. Method according to one of the preceding claims, characterized in that an aluminum, magnesium or steel material as the first and / or second metal strip and a thermosetting or thermoplastic polymer matrix are used as the polymer film. Contraption ( 1 . 1' . 1'' . 1''' ) for producing a composite material ( 2 ) comprising at least two layers of a metallic material and at least one layer disposed between the two layers of a polymer matrix material, in particular according to a method for producing the composite material according to one of claims 1 to 10, comprising - means for unwinding ( 6 . 7 . 8th ) of a wound on a collar first and second metal strip ( 3 . 4 ) and a polymer film wound on a bundle ( 5 ), - means for preheating ( 9 . 10 . 11 ) of metal bands ( 3 . 4 ) and the polymer film ( 5 ), - means for laminating-laminating-calendering ( 12 . 12 ' . 12 '' ) of metal bands ( 3 . 4 ) with the polymer film ( 5 ) for producing a composite material ( 2 ) under pressure and / or temperature, - means for cooling ( 13 ) and / or reworking ( 26 ) of the composite material ( 2 ), - means for driving and / or guiding ( 27 ) of metal bands ( 3 . 4 ), the polymer film ( 5 ) and / or the composite material ( 2 ) and - means for cutting to length ( 14 ) or rewinding ( 15 ) of the composite material ( 2 ), characterized in that the device ( 1 . 1' . 1'' ) Means for pretreatment ( 16 . 17 ) at least the first and the second metal strip ( 3 . 4 ), wherein the means for pretreatment ( 16 . 17 ) a first pretreatment unit ( 16 ) with a first conditioning station ( 16.1 ) for at least one-sided conditioning ( 16:11 ) of the first metal strip ( 3 ) and a second pretreatment unit ( 17 ) with a conditioning station ( 17.1 ) for at least one-sided conditioning ( 17:11 ) of the second metal strip ( 4 ). Apparatus according to claim 11, characterized in that the conditioning stations ( 16.1 . 17.1 ) Means for applying a coating, in particular means for spraying, doctoring or preferably a coater for coating an adhesion promoter and / or adhesive system and / or a conditioning agent, and / or means for chemical and / or physical activation, preferably by means of plasma. Device according to one of claims 11 or 12, characterized in that the device ( 1' . 1'' ) for the metal strips ( 3 . 4 ) at least one drying station ( 18 . 19 ). Device according to one of claims 11 to 13, characterized in that the pretreatment units ( 16 . 17 ) at least one directive ( 20 . 21 ), Cut- ( 22 . 23 ), and / or cleaning station ( 24 . 25 ). Device according to one of claims 11 to 14, characterized in that the cooling unit ( 13 ) at least one cooling station ( 13.1 . 13.2 ) and / or the post-processing unit ( 26 ) at least one cut ( 26.1 ), a directive 26.2 ), an inspection ( 26.3 ) and / or a coating station ( 26.4 ). Device according to one of claims 11 to 15, characterized in that the laminating-laminating calendering unit ( 12 . 12 ' . 12 '' ) at least one laminating lamination calendering station ( 12.1 . 12'.1 . 12 ''. 1 . 12'.2 . 12 ''. 2 ). Use of a composite material produced according to one of claims 1 to 10 ( 2 ) for the production of a component, in particular for the vehicle, ship, aircraft, plant, mechanical engineering, household goods or construction sector.

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