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WO2012126907A1 - Procédé de fabrication d'un élément composite - Google Patents

Procédé de fabrication d'un élément composite Download PDF

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Publication number
WO2012126907A1
WO2012126907A1 PCT/EP2012/054902 EP2012054902W WO2012126907A1 WO 2012126907 A1 WO2012126907 A1 WO 2012126907A1 EP 2012054902 W EP2012054902 W EP 2012054902W WO 2012126907 A1 WO2012126907 A1 WO 2012126907A1
Authority
WO
WIPO (PCT)
Prior art keywords
molding
molded part
recess
injection
composite component
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.)
Ceased
Application number
PCT/EP2012/054902
Other languages
German (de)
English (en)
Inventor
Manfred Nawroth
Patrick Rosso
Jana Moll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Covestro Deutschland AG
Original Assignee
Bayer MaterialScience 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 Bayer MaterialScience AG filed Critical Bayer MaterialScience AG
Priority to JP2014500352A priority Critical patent/JP2014512282A/ja
Publication of WO2012126907A1 publication Critical patent/WO2012126907A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • 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
    • B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
    • B29C2045/0027—Gate or gate mark locations
    • 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
    • B29C45/14065—Positioning or centering articles in the mould
    • B29C2045/14155—Positioning or centering articles in the mould using vacuum or suction
    • 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
    • B29C45/14467—Joining articles or parts of a single article
    • B29C2045/14532—Joining articles or parts of a single article injecting between two sheets
    • 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
    • B29C2045/1486—Details, accessories and auxiliary operations
    • B29C2045/14967—Injecting through an opening of the insert
    • B29C2045/14975—Injecting through an opening of the insert the injection nozzle penetrating through the insert
    • 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
    • B29C45/14065—Positioning or centering articles in the mould
    • 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
    • B29C45/1418—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 inserts being deformed or preformed, e.g. by the injection pressure
    • B29C45/14262—Clamping or tensioning means for the insert
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert
    • 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
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3475—Displays, monitors, TV-sets, computer screens
    • 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
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3481—Housings or casings incorporating or embedding electric or electronic elements

Definitions

  • the invention relates to a method for producing a composite component with an injection molding tool, comprising at least one molding, and
  • the invention relates to a composite component produced by this method and an injection molding tool for carrying out this method.
  • Plastic washers used.
  • a vehicle such as a motor vehicle, rail vehicle or aircraft.
  • Weight reduction consists in replacing the glass panes of a vehicle with lighter plastic cloths.
  • Plastic discs may be composite components which have at least two components.
  • a first component may be a molded part, such as a transparent molded part.
  • the second component can be formed by injection molding the molding with a plastic melt.
  • This composite component can be made transparent or translucent depending on the intended use later. From the prior art, such as DE 201 21 744 Ul or DE 10 2005 032 664 Al, such composite components are known which are produced by injection molding and can be used as a disc in a vehicle.
  • the plastic melt When injecting the molding, it must be ensured during the injection molding process that the plastic melt is clearly positioned in its position relative to the molding. In particular, it is necessary that the casting technique be designed such that the plastic melt is behind the molding during the injection molding process in order to avoid over-molding and wrinkling.
  • a connection can be made via a cold manifold.
  • a tunnel gate with auxiliary pin, a curved tunnel gate or a film gate is used.
  • a disadvantage of these methods is, however, that additional waste arises. Furthermore, it may be necessary for a gate to be separated. Another disadvantage of this method is that there is always a visible mark left on the composite component. This is particularly troublesome for optical components.
  • An alternative method according to the prior art is the so-called direct connection.
  • DE 10 2005 009 007 A1 discloses a method for producing composite components, in which a molded part is partially back-injected by means of a direct connection with a plastic material.
  • the present invention is therefore based on the object of providing a method for producing a composite component, which enables the production of a composite component with improved optics in a simple manner.
  • the previously derived and disclosed invention is in a method for producing a composite component with an injection molding tool comprising providing at least one molding and back molding of the molding with a first
  • Plastic melt by at least one Inj edictions leveraged in that the molding is back-injected through at least one provided in the molding recess through with the first plastic melt.
  • a molding such as e.g. an artificial fabric molding.
  • the molded part can be of any shape and in particular also have a complex shape.
  • the shaped part has at least one recess, that is to say a recess or opening.
  • the shape and size of the recess can basically be chosen arbitrarily, as long as it is ensured that a Kunststoffoffoffschmelze can be injected by means of a In etations worn through the recess. It is understood that two or more recesses may be provided in the molded part. The number of recesses may depend on the size of the molded part and / or the number of injection devices. A suitable nozzle, such as a hot runner nozzle, may be provided on the injection device.
  • a molding with improved optical properties can be produced with little effort in a ser manner, ie without overspraying and / or wrinkling.
  • a direct connection can be provided which does not have the disadvantages of the prior art.
  • the molding can be placed on the In etechnischs Anlagenstechnik the injection mold.
  • at least the first plastic melt can be made of a transparent plastic material.
  • a transparent plastic material is particularly suitable for use in plastic discs.
  • the first plastic melt may be made of polycarbonate (PC), polymethyl methacrylate (PMMA), transparent polyamide (PA), cyclo-olefin copolymer (COC).
  • PC polycarbonate
  • PMMA polymethyl methacrylate
  • PA transparent polyamide
  • COC cyclo-olefin copolymer
  • the plastic melt eder other thermoplastic material can be used, which is suitable for injection molding.
  • the molded part may be made of a transparent plastic material or of a partially transparent plastic material.
  • the molding may be made of polycarbonate (PC), polymethylmethacrylate (PMMA) or a polycarbonate-polymethylmethacrylate blend.
  • the molded part may according to another embodiment be a film, such as a plastic film.
  • the film may for example have a thickness of 0, 1 to 1 mm.
  • the film may be a single layer or a multilayer or a multi - layered film. multi-layered film act.
  • a multilayer film may be formed of the same or different materials as long as the materials are suitable for an injection molding process.
  • the molded part can be a functional film.
  • a functional film may include heaters, antennas, colors, logos, lights, switches, and / or photovoltaic elements.
  • the functional film may be scratch resistant and / or suitable for infrared (IR) reflection and / or ultraviolet (UV) blocking.
  • the at least one recess can be provided at any position of the molded part.
  • a recess in the central region of the molding or on the edge, such as in the form of a bulge in the edge itself be provided.
  • the recess may be provided in accordance with an embodiment of the invention in an edge region of the molded part, If two of the more recesses are provided in the molded part, preferably each recess may be provided in the edge region.
  • the edge region may be a region of the composite component that is not visible in the installed state.
  • the edge region in the installed state can be covered by another element or another layer.
  • the recess is arranged in the molded part such that it is in the installed state is not visible.
  • a composite component with particularly good optical properties can be produced.
  • the recess may have a predeterminable distance to the edge of the molding, so be completely surrounded by the molding. In this way, it may be possible to additionally use the recess as a suspension option for hooking the molded part into the injection molding tool.
  • a further plastic melt can be applied to the composite component.
  • at least the recess in the molded part after the back molding with the first plastic melt can be back-injected with a second plastic melt, At least the Au snooping can be covered for optical reasons.
  • the (entire) edge region of the molded part can be back-injected with the second plastic melt. The molding is back-injected from both sides.
  • thermoplastic material such as thermoplastic polyurethane (TPU), thermoplastic polyethylene (TPE), PC blends or PVC.
  • TPU thermoplastic polyurethane
  • TPE thermoplastic polyethylene
  • PVC polypropylene
  • the material may in particular be colored.
  • a colored material can cover the at least one recess. The recess is therefore not visible.
  • the second plastic melt also allows the molding of fasteners or the like.
  • the recess in the molded part can be shaped such that the shape of the recess corresponds to a shape of an ineffective core of the injection device.
  • the In etations may have a projection.
  • the injector core thus faces the other tool halls.
  • the injection unit core or the injection unit core can be used.
  • the projection of the injector core has a circumferential shape corresponding to the shape of the recess. In other words, depending on the shape of the injector core, the at least one outer recess may be formed. This allows the molding to be hung on the mold half having the injection device.
  • the recess may correspond in the molded part to the injection device core of the injection device in such a way that the injection element core of the injection device can be positively connected to the molded part.
  • a positive connection is particularly preferred since no further holding devices for holding the molded part during the injection molding process are required.
  • a molded part in the form of a Fol ie be hanged in a simple manner on at least one Inj edictions Rheinskern without the further holding device are provided.
  • the molding may have a thickness such that the value of a projection of the injection device core of the injection device is equal to the value of the thickness of the molding or greater than the value of the thickness of the molding according to another embodiment of the method of the present invention.
  • the thickness of the molded part is understood in particular to be the value which results at the edges of the at least one recess of the molded part. It is understood that this value does not have to be constant.
  • the In etechnischs wornskern, for example, complete flush with the molding.
  • the molded article 1 and the injector core may form a unitary surface.
  • the first plastic melt can then flow behind the molding without overspray or wrinkling occurring. It is understood that the Inj etations adoptedskern can also protrude through the recess of the molding, so the projection of the Inj etechnischs wornskerns is greater than the thickness of the molding. Preferably, the projection of the
  • Injection core j edo ch n icht be formed less than the thickness of the molding.
  • a negative pressure can be generated in a mold half having the injection device. Due to the negative pressure, a molded part can be held in a simple manner during the injection molding process.
  • At least one further molded part can be provided.
  • the first plastic melt can be back-injected between the two mold parts through the recess provided in a molded part.
  • the further molding can be made be formed of the same material as the molding or of another material.
  • two functional films can be provided to integrate additional functions in a composite component. The back-injection of the two molded parts by at least one recess provided in at least one molded part enables the production of a composite component in a particularly simple manner.
  • Another aspect of the invention is a composite component made by a previously described method.
  • the composite component can have particularly good optical properties.
  • the composite component can in particular be a plastic disk.
  • Plastic disc can be used in particular in a vehicle.
  • plastic windows in the window and Verscheibungs Hochglanz- layer hinterspritzten decorative covers, (backlit) panels in the car or monitor / display covers be used.
  • Yet another aspect of the invention is an injection molding tool for performing the method described above with a first tool half and a second tool half.
  • a tool half is at least one In etations worn for injection molding at least one Form part arranged by at least one provided in the molding recess.
  • the injection molding tool such as a 2-component injection molding machine, has two mold halves that can be moved between a closed state and a closed state. When closed, the injection molding process can be Runaway leads.
  • at least one injection device is provided in a mold half.
  • the injection mold in particular the In etations adopted, is formed such that in the closed state, a first plastic melt is injected through a recess in the molded part behind the molding.
  • the injection molding tool can in particular have a (single) production cell. In a simple way, a visually appealing composite component can be produced with the injection molding tool.
  • At least one opening for generating a negative pressure for holding the molded part can be arranged in at least one mold half.
  • This at least one opening can be coupled to an air pressure system, so that a negative pressure can be generated in a simple manner.
  • At least one tool half made of a porous tool steel, in particular made of sintered steel.
  • the negative pressure for fixing the molding can be transported to the surface.
  • the advantage here is that due to the small cross-sectional area of the pores on the tool surface there is no risk that, in the event of incorrect positioning of the molded part, melt (via the pores) can penetrate into the tool.
  • Fig. 1 is a schematic exploded view of a first
  • Fig. 2 is a schematic exploded view of a second
  • Fig. 3 is a s chema t i s che sectional view of the second
  • FIG. 4 is a schematic Sectiona view of a composite component according to the present invention.
  • Fig. 5 is a schematic partial view of another
  • Embodiment of an injection mold in the closed state according to the present invention a flowchart of awhosbei game s a method for producing a composite component according to the present invention
  • Fig. 7 is a schematic view of the second
  • Fig. 8 is a schematic exploded view of a third one
  • Fig. 9 is a s chema t i s che sectional view of the third
  • Embodiment of a composite component according to the present invention and a schematic partial view of another embodiment of an injection molding tool according to the present invention.
  • FIG. 1 shows a schematic exploded view of a first exemplary embodiment of a composite component 2 according to the present invention.
  • the composite component 2 may in particular be a transparent or partially transparent plastic disc which can be used in a vehicle.
  • the composite component 2 comprises a molded part 4 and a first synthetic material element 6.
  • the first plastic element 6 is connected to the first synthetic material element 4 by an injection molding process.
  • the molded part 4 and the first plastic element 6 have an octagonal shape. It is understood that the shape of the corresponding elements can basically be the same, and the elements can be, for example, a circular shape, a triangular shape, a rectangular shape, etc. can have. It is further understood that the elements can also have a spatial shape curved at i eb i g.
  • the molding 4 may be a film, such as a functional film.
  • a functional film is e.g. a plastic film incorporating one or more functions or properties. Examples of functions are heating fields, antennas, colors, logos, lights, switches or photovoltaics. Examples of properties are
  • the illustrated molding 4 has a recess 8.
  • the recess 8 is arranged in an edge region 10 of the molded part 4.
  • the illustrated recess 8 is formed circular.
  • the recess 8 may have any desired shape. As will be explained below, the shape of the recess 8 may depend in particular on the shape of an In etations Anlagenskerns.
  • Figure 2 shows a s chemat i see exploded view of a second embodiment of a composite component 2.1 according to the present invention.
  • the composite component 2.1 has a second plastic element 12.
  • the second plastic element 12 may be provided only in the edge region 10 of the first plastic fabric element 4.
  • the plastic fabric element 12 may be formed from a colored material.
  • the second plastic element 12 may cover at least one recess 8 such that the recess 8 is not visible.
  • the second plastic material element 12 may be so shaped that it can serve, for example, for mounting the composite component 2.1.
  • the plastic fabric element 12 may have projections, extensions and the like.
  • FIG. 3 shows a sectional view of the composite component 2.1 according to FIG.
  • the composite component 2.1 comprises the three components 4, 6 and 12.
  • the molded part 4 is arranged between the two plastic elements 6 and 12.
  • the second plastic element 12 is arranged in egg NEM edge region.
  • at least the recess 8 is covered by the second plastic element 12.
  • Figure 4 shows a schematic partial view of a first embodiment of an injection mold in the closed state according to the present invention. As can be seen, in particular a section of the injection mold is shown in the region of the at least one recess 8 of the molded part 4.
  • the injection mold comprises two tool halves 14 and 16.
  • the machine tool side may be the ejector side and the second tool half 16 may be the ejector side.
  • the ejector side can be movably mounted. In this way, the injection mold can be opened to insert, for example, a plastic film 4 in the first mold half 14 or take out a manufactured composite component 2, 2.1, and closed for an injection molding. Vorl hanging the injection mold is shown in the closed state.
  • In the first mold half 14 at least one In etations driven 18, such as an injection molding, arranged.
  • a hot runner nozzle is provided as in etechnischs driven 18.
  • the In etechnischs issued 18 further includes an in etechnischs wornn 20 on. This is in particular formed by a projection 26 and represents the end of the In etechnischs issued 18.
  • the orifices 22 may be used with a vacuum system (not shown) to generate a negative pressure.
  • a vacuum system not shown
  • a film to be back-injected 4 in a preferably constant Be held in position for example, a film to be back-injected 4 in a preferably constant Be held in position.
  • a porous tool steel sintered steel
  • the advantage here is that, due to the small cross-sectional area of the pores on the tool surface, there is no risk that, in the event of malpositioning of the film 4, melt (via the pores) can penetrate into the tool.
  • In etations wornskern 20 are formed by a projection 26.
  • the projection 26 of the In etations wornskerns 20 I s can extend into the recess 8.
  • the molding 4 can be mounted on the projection 26 of the In etations Anlagenskerns 20.
  • the projection 26 of the In etations Rheinskerns 20 may protrude by an amount relative to the tool half 14, which corresponds at least to the thickness 24 of the molded part 4.
  • the projection 26 terminates in particular flush with the molded part 4, that is, does not protrude or stand back.
  • the position during the injection molding process can be surely maintained.
  • the plastic melt 6 can flow over the molded part 4 and connect cohesively with this. Overspraying and wrinkling can be avoided.
  • the projection 26 may also be formed with a larger amount than the thickness of the molding 4.
  • the projection 26 or. the Inj etations Rheinskern 20 circumferentially the contour of the recess 8 have.
  • the molded part 4 enter into a positive connection with the Inj etechnischs Rheinskern 20.
  • a Pas sungshack with a tolerance between 0.1 to 0, 5 mm can be selected.
  • the vacuum holes 22 can be omitted, since a secure holding of the molded part 4 by the positive engagement (without further action) can be ensured. Overjections can be avoided particularly reliably.
  • Figure 5 shows a partial section of a closed injection mold in an optional further
  • the composite component 2 which comprises a molded part 4 back-injected with a plastic melt 6, can be introduced into a second cavity.
  • the transfer can be done for example with a turntable, a turning plate, a sliding cavity, an index plate or similar device.
  • the tool half 14.1 again comprises at least one injection device 18.1, such as a hot runner nozzle (if necessary with a sprue).
  • Another plastic melt 12 can be injected behind the first plastic element 6 and the molded part 4.
  • the sprue area of the previous injection molding step can be covered.
  • FIG. 5 shows a flow chart of an exemplary embodiment of the injection molding method.
  • a molded part 4 can be provided.
  • the molded part 4, such as a plastic film, can be introduced into the injection mold.
  • a plastic film 4 can be hung on the at least one in etations Rheinskern 20 and optionally held by suppression in position.
  • the injection mold can be closed. It is understood that prior to the provision of the molding 4, this can be preformed, reshaped, trimmed, coated and / or printed accordingly.
  • further elements such as wires that can serve for heating or as an antenna, can be arranged.
  • at least one recess 8 can be introduced into the molded part 4.
  • the recess 8 can be formed in particular depending on the circumferential contour of the In etechnischs Rheinskerns 20. In the closed state of the injection molding of Inj etechnischs Rheinskern 20 at least flush with the molding 4 is arranged.
  • the molded part 4 is back-injected with a plastic melt 6.
  • the plastic melt 6 flows behind the plastic film 4 and in particular fills the entire area between the second mold half 16 and the plastic film 4 from.
  • the composite component 2 can be removed.
  • the composite component 2 can be back-injected with a further plastic melt 12.
  • the composite component 2 consisting of a molded part 4 that is back-injected with a plastic melt 6 can be converted into a second cavity.
  • a further plastic melt 12 can be injected behind the first plastic element 6 and the molded part 4 (step 603).
  • the gate area of the previous injection molding step 602 can be covered.
  • FIG. 7 shows a schematic sectional view of the manufactured composite component 2.1.
  • FIG. 8 shows a further exemplary embodiment of a composite component 2.2 according to the present invention.
  • the composite component 2.2 comprises two molded parts 4.1 and 4.2.
  • the molded parts 4.1 and 4.2 may be made of the same material and be designed, for example, as a functional film. At least the molding 4.1 is provided with a recess 8. Preferably, the further molded part 4.2 has no recess.
  • the first plastic element 6 is arranged in the present embodiment between the mold parts 4.1 and 4.2. If two functional films 4.1 and 4.2 are provided as molded parts 4.1 and 4.2, additional functions can be integrated into the composite component 2.2.
  • a disk body can be provided with a double-sided heating, for example, to remove fog from the inside and ice from the outside.
  • FIG. 9 shows the composite component 2.2 in a sectional view.
  • the first plastic element 6 is arranged between the molded part 4.1 and the molded part 4.2.
  • Figure 10 finally shows a partial section of a closed injection mold with the mold parts 4.1 and 4.2.
  • the plastic melt 6 can be injected between the two mold parts 4.1 and 4.2 and connect with the mold parts 4.1 and 4.2 in particular cohesively.
  • the composite component 2.2 comprising the molded parts 4.1 and 4.2 and the plastic element 6 are back-injected with a further plastic melt 12, as previously described.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un élément composite (2, 2.1, 2.2) au moyen d'un moule d'injection, consistant à préparer au moins une partie de moule (4, 4.1) et à injecter une première matière plastique fondue (6) dans la partie de moule (4, 4.1) au moyen d'au moins un dispositif d'injection (18). L'invention est caractérisée en ce que la première matière plastique fondue (6) est injectée dans la la partie de moule (4, 4.1) au moyen du dispositif d'injection (20) à travers au moins un évidement (8) prévu dans ladite partie de moule (4, 4.1).
PCT/EP2012/054902 2011-03-24 2012-03-20 Procédé de fabrication d'un élément composite Ceased WO2012126907A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014500352A JP2014512282A (ja) 2011-03-24 2012-03-20 複合材料部材の製造方法

Applications Claiming Priority (2)

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DE102011006034.0 2011-03-24
DE201110006034 DE102011006034A1 (de) 2011-03-24 2011-03-24 Verfahren zur Herstellung eines Verbundbauteils

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WO2012126907A1 true WO2012126907A1 (fr) 2012-09-27

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JP (1) JP2014512282A (fr)
DE (1) DE102011006034A1 (fr)
WO (1) WO2012126907A1 (fr)

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CN105530783B (zh) * 2014-12-26 2016-10-12 比亚迪股份有限公司 一种通讯设备金属外壳及其制备方法
DE102015106768A1 (de) * 2015-04-30 2016-11-03 Miele & Cie. Kg Abdeckschale für ein Gehäuse eines Haushaltsgeräts, Haushaltsgerät mit einer Abdeckschale, Verfahren zum Anbringen einer Abdeckschale an ein Gehäuse eines Haushaltsgeräts und Herstellungsverfahren zum Herstellen einer Abdeckschale für ein Gehäuse eines Haushaltsgeräts
WO2018073111A1 (fr) * 2016-10-18 2018-04-26 Covestro Deutschland Ag Procédé pour la fabrication d'un corps en matière synthétique qui convient comme élément décoratif
ES2897468T3 (es) * 2018-12-21 2022-03-01 Schneider Kunststoffwerke Gmbh Película recubierta, componente de plástico fabricado con la misma, así como procedimiento y herramienta para su fabricación

Citations (10)

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Publication number Priority date Publication date Assignee Title
GB1169245A (en) * 1967-02-09 1969-10-29 Needle Industries Ltd Improvements in and relating to Injection Moulding
US5164144A (en) * 1989-08-07 1992-11-17 Schlumberger Industries Process for making card bodies and cards incorporating graphic symbols
US5676901A (en) * 1992-06-19 1997-10-14 Matsushita Electric Works, Ltd. Process for resin-coating of resin moldings, resin-coating apparatus for use in the process
US5993719A (en) * 1994-09-08 1999-11-30 Idemitsu Petrochemical Co., Ltd. Method of producing a laminated molding
US20010046822A1 (en) * 1998-04-08 2001-11-29 Dai Nippon Printing Co., Ltd. Resin molding manufacturing method, apparatus for carrying out the method and case
DE20121744U1 (de) 2001-09-26 2003-04-30 freeglass GmbH & Co. KG, 71409 Schwaikheim Kunststoffscheibe mit eingebetteten Drähten
DE102005009007A1 (de) 2004-10-11 2006-04-13 Incos S.P.A., San Polo Di Piave Verfahren für die Herstellung von Platten, hergestellt aus transparentem Kunststoffmaterial, mit nicht-transparenten übersprizten Teilen
DE102005032664A1 (de) 2005-07-13 2007-01-25 Bayer Materialscience Ag Verfahren zur Herstellung eines Verbundbauteils
EP1777052A2 (fr) * 2005-10-24 2007-04-25 ALSA GmbH Chaussure pourvue d'une décoration, procédé d'élaboration et moule
DE102006059404A1 (de) * 2005-12-12 2007-06-28 Visteon Global Technologies, Inc., Van Buren Eine Komponente für einen Fahrzeuginnenraum und ein Verfahren zur Montage

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1169245A (en) * 1967-02-09 1969-10-29 Needle Industries Ltd Improvements in and relating to Injection Moulding
US5164144A (en) * 1989-08-07 1992-11-17 Schlumberger Industries Process for making card bodies and cards incorporating graphic symbols
US5676901A (en) * 1992-06-19 1997-10-14 Matsushita Electric Works, Ltd. Process for resin-coating of resin moldings, resin-coating apparatus for use in the process
US5993719A (en) * 1994-09-08 1999-11-30 Idemitsu Petrochemical Co., Ltd. Method of producing a laminated molding
US20010046822A1 (en) * 1998-04-08 2001-11-29 Dai Nippon Printing Co., Ltd. Resin molding manufacturing method, apparatus for carrying out the method and case
DE20121744U1 (de) 2001-09-26 2003-04-30 freeglass GmbH & Co. KG, 71409 Schwaikheim Kunststoffscheibe mit eingebetteten Drähten
DE102005009007A1 (de) 2004-10-11 2006-04-13 Incos S.P.A., San Polo Di Piave Verfahren für die Herstellung von Platten, hergestellt aus transparentem Kunststoffmaterial, mit nicht-transparenten übersprizten Teilen
DE102005032664A1 (de) 2005-07-13 2007-01-25 Bayer Materialscience Ag Verfahren zur Herstellung eines Verbundbauteils
EP1777052A2 (fr) * 2005-10-24 2007-04-25 ALSA GmbH Chaussure pourvue d'une décoration, procédé d'élaboration et moule
DE102006059404A1 (de) * 2005-12-12 2007-06-28 Visteon Global Technologies, Inc., Van Buren Eine Komponente für einen Fahrzeuginnenraum und ein Verfahren zur Montage

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JP2014512282A (ja) 2014-05-22

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