EP2897787A1 - Verfahren zur herstellung eines formteils und verwendung eines entsprechenden formteils - Google Patents
Verfahren zur herstellung eines formteils und verwendung eines entsprechenden formteilsInfo
- Publication number
- EP2897787A1 EP2897787A1 EP13759202.8A EP13759202A EP2897787A1 EP 2897787 A1 EP2897787 A1 EP 2897787A1 EP 13759202 A EP13759202 A EP 13759202A EP 2897787 A1 EP2897787 A1 EP 2897787A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fibers
- fiber type
- layers
- layer
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000000835 fiber Substances 0.000 claims abstract description 240
- 239000002131 composite material Substances 0.000 claims abstract description 54
- 229920005989 resin Polymers 0.000 claims abstract description 45
- 239000011347 resin Substances 0.000 claims abstract description 45
- 229920003023 plastic Polymers 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 24
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- 238000000465 moulding Methods 0.000 description 19
- 239000000463 material Substances 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- 239000004926 polymethyl methacrylate Substances 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 244000198134 Agave sisalana Species 0.000 description 2
- 229920002748 Basalt fiber Polymers 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 2
- 241000208202 Linaceae Species 0.000 description 2
- 235000004431 Linum usitatissimum Nutrition 0.000 description 2
- 229920005372 Plexiglas® Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229920002522 Wood fibre Polymers 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 235000009120 camo Nutrition 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 235000005607 chanvre indien Nutrition 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011487 hemp Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 238000001721 transfer moulding Methods 0.000 description 2
- 239000002025 wood fiber Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229920003180 amino resin Polymers 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 238000009617 vacuum fusion Methods 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/024—Woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
-
- 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
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/722—Decorative or ornamental articles
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/20—All layers being fibrous or filamentary
-
- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
- B32B2260/023—Two or more layers
-
- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/514—Oriented
- B32B2307/52—Oriented multi-axially
-
- 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
- B32B2471/00—Floor coverings
-
- 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
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
-
- 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
- B32B2605/00—Vehicles
- B32B2605/08—Cars
Definitions
- the present invention relates to a method for producing a molded article and the use of a corresponding molded article.
- the invention finds particular application in the production of moldings from composite materials.
- RTM Resin Transfer Molding
- semi-finished fiber products are placed in a mold and then encapsulated with a molding compound.
- the composite materials resulting from the curing of the molding compound are characterized by high strength and low weight
- Such composite materials are therefore used in particular as structural parts in vehicle or aircraft construction.
- composite materials are also used as decorative surfaces, for example as decorative moldings in motor vehicles.
- carbon fiber reinforced plastics are particularly suitable, because these with their checkerboard pattern one
- many vehicle buyers prefer surfaces that are at least modeled on a natural material such as wood, which is well known in the art
- methods for producing composite materials are not suitable for producing molded parts which have a surface structure which is modeled on natural materials.
- the object of the invention is therefore to at least partially solve the problems described with reference to the prior art and in particular to provide a method for producing a molded part with which molded parts can be produced which have a surface structure modeled on natural materials.
- advantageous uses of a correspondingly produced molding are given.
- the inventive method for producing a molded part has at least the following steps: a. Providing a plurality of layers of fibers of a first fiber type in a mold;
- the mold is a tool, such as a Resin Transfer Molding (RTM) process, which produces the outer shape of a dictates the composite material.
- RTM Resin Transfer Molding
- a plurality of layers of fibers of a first fiber type are provided.
- the layers are, in particular, a woven fabric, a scrim, a multiaxial fabric, a knitted fabric, a braid, a mat, a fleece, a fine cut and / or a spacer fabric.
- the fibers can also form layers with an additional material, such as (perforated and / or isotropic) plastic films.
- the first type of fiber is in particular basalt fibers, boron fibers, glass fibers, ceramic fibers, silica fibers, steel fibers, aramid fibers, carbon fibers, polyester fibers, nylon fibers, polyethylene fibers, Plexiglas fibers, wood fibers, flax fibers, hemp fibers and / or sisal fibers.
- the first type of fiber is glass fibers.
- the fibers of the first fiber type are preferably colorless.
- At least one layer of fibers of a second fiber type is provided in the mold between the plurality of layers of fibers of the first fiber type.
- the number of layers of fibers of the second fiber type may be different and varied within wide limits depending on the available form. In particular, two, more preferably three or very particularly preferably four, layers of fibers of the second fiber type are preferred.
- the at least one layer of fibers of the second fiber type may likewise be a scrim, a multiaxial scrim, a knit, a braid, a mat, a nonwoven, a fine cut and / or a Ab Stands tissue. Also preferred here is a Multiaxialgelege.
- the second type of fiber is also in particular basalt fibers, boron fibers, glass fibers, ceramic fibers, silica fibers, steel fibers, aramid fibers, carbon fibers, polyester fibers, nylon fibers, polyethylene fibers, Plexiglas fibers, wood fibers, flax fibers, hemp fibers and / or sisal fibers.
- the second fiber type is in particular a colored material. In any case, the first fiber type and the second fiber type are made of different materials and have different colors.
- the fibers of the first fiber type and the fibers of the second fiber type should not form a layer together.
- this also means that they are not woven together to form a fabric and, moreover, can be provided in the mold independently of each other.
- the plurality of layers of fibers of the first fiber type and the at least one layer of fibers of the second fiber type are superimposed in layers in the mold.
- a pack of layers of both fiber types outside the mold can be formed, so that then the layers are at least partially inserted together in the mold.
- the layer pack may eventually comprise up to 20 layers, but preferred are arrangements of 3 to 6 layers.
- the one or at least one of the layers of fibers of the second fiber type is provided wave-like in the mold, so that this (after completion of the moldings) is modeled on the grain of a wood.
- the layers of fibers of the second fiber type have different corrugations. At least one, several or all layers of fibers of the second fiber type are for this purpose preferably wider than a width of a composite material to be produced and / or longer than a length of a composite material to be produced.
- At least individual layers of fibers of the second fiber type may be narrower than the width of the composite material to be produced and / or shorter than the length of the composite material to be produced. This also means that at least one, several or all ends of the second fiber type layers in the widthwise and / or lengthwise directions of the composite material to be produced may be spaced from side walls of the mold in providing the second fiber type fibers, and these in particular do not touch.
- the corrugation of the layers of fibers of the second fiber type may, for example, by a corresponding attachment of the at least one layer of fibers of the second fiber type in the shape, for example with adhesive strips, and / or by a corresponding relining with layers of fibers of the first fiber type can be achieved.
- at least one, several or all layers of fibers of the first fiber type may preferably be narrower than the width of the composite material to be produced and / or shorter than the length of the composite material to be produced. This means z.
- At least one, several or all ends of the first fiber type layers in the widthwise and / or lengthwise directions of the composite material to be produced are spaced apart from, and in particular not the same, the side walls of the mold in providing the first fiber type fibers touch. It is also preferred that the lowermost and / or uppermost layer is formed from a layer of fibers of the first fiber type.
- a resin (especially a casting resin) are filled into the mold.
- the resin forms a matrix in the mold for the plurality of layers of fibers of the first fiber type.
- the resin is preferably at least one of the following resins: epoxy resin (EP resin), unsaturated polyester resin (UP resin), vinyl ester resin (VE resin), phenol-formaldehyde resin (PF resin), diallyl phthalate resin (D. AP resin), methacrylate resin (MMA resin), polyurethane resin (PUR resin) and / or amino resins.
- the mold is in particular connectable via pressure lines with a resin source. The resin is either poured into the mold and / or injected under pressure into the mold.
- the resin thus forms a composite with the plurality of first fiber type layers and the at least one second type fiber layer.
- the composite material has a length, a width and a height, for example a length up to about 100 cm, a width up to about 50 cm and a height in the range of about 3-100 mm.
- the layers of fibers are already made with a bonding material in the layers. These are in particular so-called “prepregs” or else preimpregnated fiber layers, The fibers are then already treated with an unhardened (thermosetting) plastic. see.
- the connecting material plastic is thus introduced simultaneously with the provision of the layers in the mold.
- required bonding material for the adhesion of the layers to each other may be a resin and / or a plastic, wherein a casting resin for a subsequent introduction of the bonding material into the mold and plastic in Pregregs preferably applies.
- vacuum fusion process Preferably one of the following methods is used: vacuum fusion process, prepregging, hand lamination, fiber spraying, pultrusion process.
- step d. solidified.
- the resin is cured.
- a thermal treatment of the composite material can be carried out.
- Such curing processes are often carried out in an autoclave.
- the composite material in step e. separated into molded parts so that the layer of fibers of the second fiber type on at least one surface of the molded part or preferably on two (in particular opposite) surfaces of the molded part is visible as a structure. Furthermore, it is also possible that the fibers of the second fiber type are visible as a structure on the majority of the surfaces and / or not on all surfaces of the molded part.
- the composite material is preferably cut into multiple and / or preferred (substantially) perpendicular to the plurality of layers of fibers of the first fiber type and / or perpendicular to the at least one layer of fibers of the second fiber type in shaped parts.
- the separation of the composite material takes place in such a way that the molded parts have a molded part length which corresponds to the width of the composite material and / or the molded parts have a molded part width which corresponds to the height of the composite material.
- the at least one layer of fibers of the second fiber type is deposited on the at least one surface of the molding fiber. partly visible as a structure, in particular, in that the at least one layer of fibers of the second fiber type has a color which visually stands out from a color of the resin and a color of the plurality of layers of fibers of the first fiber type.
- the at least one surface can additionally be polished and / or varnished with a clearcoat.
- the moldings have a thickness which is preferably between 1 mm to 50 mm, more preferably between 1 mm to 25 mm and most preferably between 1 mm to 10 mm.
- the moldings are formed in particular in the manner of disks or plates, wherein in principle (depending on the shape), other shapes are possible, such as an S-shape.
- steps a. to e. are preferably carried out in succession, wherein z. B. steps a. and b. if necessary (alternately) be executed several times in succession before step c. is carried out.
- further handling steps can be carried out in between, such as a transport, a conditioning, a measurement, etc.
- a first type of fiber layer or a plurality of adjacent layers of first fiber type fibers have a first thickness and a layer of second fiber type fibers or a plurality of adjacent second fiber type layers of second fiber type have a second thickness Thickness is greater than the second thickness.
- the ratio of the first thickness to the second thickness is preferably (at least) 5: 1, more preferably (at least) 10: 1 and most preferably (at least) 20: 1. This ensures that each individual layer of the at least one layer of fibers of the second fiber type on the at least one surface of the molding in step e. becomes visible as a linear structure.
- a distance between two layers of second fiber type fibers is different along a width of the composite material. This means in particular that the corrugation of the individual layers of fibers of the second fiber type is different. As a result, a structure on at least one surface of the later separated molded part are produced, which looks very similar to a natural wood grain.
- the plurality of layers of fibers of the first fiber type has a first color and the at least one layer of fibers of the second fiber type has a second color. This ensures that the at least one layer of fibers of the second fiber type can be seen on the at least one surface of the molded part. It is also advantageous if the plurality of layers of fibers of the first fiber type has a first color and the first color corresponds to a color of the resin. In this way it is achieved that the plurality of layers of fibers of the first fiber type and the resin on the at least one surface of the molded part produce a color-homogenous surface.
- the plurality of layers of fibers of the first fiber type is colorless. As a result, the plurality of layers of fibers of the first fiber type on the at least one surface of the molded part is substantially not visible.
- the plurality of layers of fibers of the first fiber type during step c. be colored by the resin. This also ensures that the plurality of layers of fibers of the first fiber type and the resin on the at least one surface of the molded part produce a color-homogenous surface.
- the fibers of the first fiber type are carbon fibers. Carbon fibers have an approximately black color. These are therefore particularly well suited to produce a clearly visible structure on the at least one surface of the molded part. It is particularly advantageous if light-conducting elements are arranged between the plurality of layers of fibers of the first fiber type or the at least one layer of fibers of the second fiber type, so that ends of the light-conducting elements are visible on at least two surfaces of the molded part.
- the light-conducting elements are preferably light-conducting fibers (in particular of polymethyl methacrylate (PMMA)) and / or glass fibers.
- the ends of the light-conducting elements are visible in particular on at least two opposite surfaces of the molded part and end there.
- a use of a molded article produced by a method according to the Invention is proposed as a floor covering, automotive interior or decorative surface.
- the floor covering, the automotive interior or the decorative surfaces is backlit, so that on a visible surface of the molded parts lighting effects, such. B. points of light, are visible.
- FIGS. show particularly preferred embodiments of the invention, but this is not limited thereto.
- Fig. 4 a composite material
- Fig. 5 a use of the moldings produced by a method according to the invention as a floor covering.
- Fig. 1 shows a mold 4 with a bottom 15 and side walls 14.
- the mold 4 can be closed pressure-tight with a lid, not shown here. 2
- the mold 4 is shown in a plan view, wherein the mold 4 is connected via a pressure line 18 with a resin source 16.
- prepregs instead of casting resin, which are simply stacked one on top of the other.
- a composite material 8 and a top layer of fibers of a first fiber type 2 is visible.
- the layer of fibers of the first fiber type 2 has a width which corresponds to a width 12 of the composite material 8.
- the layer of fibers of the first fiber type 2 furthermore has a length which corresponds to a length 17 of the composite material 8.
- the width 12 and the length 17 of the composite material 8 are defined by the side walls 14 of the mold 4.
- FIG. 3 shows a sectional view along the section line III-III drawn in FIG. 2.
- a plurality of layers of fibers of a first fiber type 2 and three layers of fibers of a second fiber type 5 were provided in layers on the bottom 15 of the mold 4, which together form a height 19 of the composite material 8 define.
- the lowermost layer in this exemplary embodiment forms a layer of fibers of the first fiber type 2.
- the lowest layer is here the layer which is arranged directly on the bottom 15 of the mold 4.
- the lowermost layer of fibers of the first fiber type 2 has a width which corresponds to the width 12 of the composite material 8.
- the overlying layers of first fiber type fibers 2 (also shown in phantom) have at least partially a width that is less than the width 12 of the composite material 8. This allows for a wave-like arrangement of the layers of fibers of the second fiber type 5 by a corresponding relining ,
- the layers of fibers of the first fiber type 2 have a first thickness 9 and the respective layers of fibers of the second fiber type 5 have a second thickness 10, wherein the first thickness 9 is greater than the second thickness 10.
- a distance 11 between two layers of second fiber type fibers 5 is different along the width 12 of the composite material 8.
- the composite material 8 has, parallel to the layers of fibers of the first fiber type 2 and the layers of fibers of the second fiber type 5, a plurality of light-conducting elements 13 which extend in the direction of the length 17 of the composite material 8 shown in FIG have a length corresponding to the length 17 of the composite material 8.
- resin 7 is introduced into the mold 4 via a pressure line 18 from a resin source 16.
- FIG. 4 now shows the composite material 8, after which it has been solidified and removed from the mold 4.
- the composite material 8 has the width 12, the length 17 and the height 19 shown in FIG.
- the photoconductive elements 13 embedded in the resin 7 as a matrix are shown as dashed lines.
- the composite material 8 is separated into 25 (plate-shaped) mold parts 1 along section lines 20 shown here in the present exemplary embodiment so that they have a thickness 24 in the direction of the length 17 of the molded part 8 shown in FIG.
- the moldings 1 also have a mold part length 3, which corresponds to the width 12 of the composite material 8.
- Fig. 5 shows a use of a prepared according to a method according to the Invention variety of moldings 1 as floor covering 25.
- the moldings 1 have a molding width 6, which corresponds to the height shown in Fig. 3 19 of the composite material 8, and a surface visible from above 21 on.
- the layers of fibers of the second fiber type 5 are visible as a wave-shaped structure 22, wherein the structure 22 is modeled on a natural wood grain.
- 21 ends 23 of light-conducting elements 13 are visible on the surface.
- the floor covering 25 is illuminated from below.
- the method according to the invention makes it possible to produce molded parts which have particularly attractive surface structures and, moreover, are durable.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210108920 DE102012108920A1 (de) | 2012-09-21 | 2012-09-21 | Verfahren zur Herstellung eines Formteils und Verwendung eines entsprechenden Formteils |
PCT/EP2013/068536 WO2014044560A1 (de) | 2012-09-21 | 2013-09-09 | Verfahren zur herstellung eines formteils und verwendung eines entsprechenden formteils |
Publications (1)
Publication Number | Publication Date |
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EP2897787A1 true EP2897787A1 (de) | 2015-07-29 |
Family
ID=49118523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13759202.8A Withdrawn EP2897787A1 (de) | 2012-09-21 | 2013-09-09 | Verfahren zur herstellung eines formteils und verwendung eines entsprechenden formteils |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2897787A1 (de) |
DE (1) | DE102012108920A1 (de) |
WO (1) | WO2014044560A1 (de) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61182907A (ja) * | 1985-02-12 | 1986-08-15 | Mitsubishi Rayon Co Ltd | プリプレグの製造方法 |
KR960703738A (ko) * | 1994-05-20 | 1996-08-31 | 필립 에스. 월슨 | 복합 자동차 범퍼 빔(composite motor vehicle bumper beam) |
EP1236951A1 (de) * | 2001-02-28 | 2002-09-04 | Herzog & de Meuron Architekten AG | Fasermatte |
CA2537568A1 (en) * | 2006-02-23 | 2007-08-23 | Bulletproof Skateboards | Composite materials and sports articles manufactured therefrom |
DE102006035939B4 (de) * | 2006-07-31 | 2012-02-23 | Eads Deutschland Gmbh | Verfahren zur Herstellung von Faserverbundbauteilen und Faserverbundbauteil |
DE102007041394B4 (de) * | 2007-08-31 | 2019-03-14 | Litwork Gmbh | Lichtdurchlässiger Schichtkörper und Verfahren zu dessen Herstellung |
US8883658B2 (en) * | 2008-11-26 | 2014-11-11 | Litwork, GmbH | Translucent composite |
DE102010031639A1 (de) * | 2010-07-22 | 2012-01-26 | Bayerische Motoren Werke Aktiengesellschaft | Verbundbauteil und Verfahren zur Herstellung eines Verbundbauteils |
-
2012
- 2012-09-21 DE DE201210108920 patent/DE102012108920A1/de not_active Withdrawn
-
2013
- 2013-09-09 WO PCT/EP2013/068536 patent/WO2014044560A1/de active Application Filing
- 2013-09-09 EP EP13759202.8A patent/EP2897787A1/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2014044560A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102012108920A1 (de) | 2014-03-27 |
WO2014044560A1 (de) | 2014-03-27 |
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