DE2933960A1 - Glass reinforced plastic moulding - where where closed two=part mould is evacuated after loading bottom tool with GRP deposit plus porous sheet - Google Patents
Glass reinforced plastic moulding - where where closed two=part mould is evacuated after loading bottom tool with GRP deposit plus porous sheetInfo
- Publication number
- DE2933960A1 DE2933960A1 DE19792933960 DE2933960A DE2933960A1 DE 2933960 A1 DE2933960 A1 DE 2933960A1 DE 19792933960 DE19792933960 DE 19792933960 DE 2933960 A DE2933960 A DE 2933960A DE 2933960 A1 DE2933960 A1 DE 2933960A1
- Authority
- DE
- Germany
- Prior art keywords
- grp
- layer
- air
- mold
- mold part
- 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- Withdrawn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
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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/56—Compression moulding under special conditions, e.g. vacuum
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/006—Degassing moulding material or draining off gas during moulding
-
- 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
- B29C70/086—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 and with one or more layers of pure plastics material, e.g. foam layers
-
- 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
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
-
- 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
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/006—Using vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0854—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns in the form of a non-woven mat
Abstract
Description
Verfahren und Vorrichtung zum Herstellen von Bauteilen ausMethod and device for manufacturing components from
glasfaserverstärktem Kunststoff Die Erfindung bezieht sich auf ein Verfahren zum Herstellen von Bauteilen aus glasfaserverstärktem Kunststoff, in einer aus wenigstens Formunterteil und Formoberteil bestehenden Form sowie Vorrichtungen zur Durchführung dieses Verfahrens. Es sind zahlreiche Verfahren zur Herstellung von Bauteilen aus glasfaserverstärktem Kunststoff bekannt.glass fiber reinforced plastic The invention relates to a Process for the production of components from glass fiber reinforced plastic, in one consisting of at least the lower part of the mold and the upper part of the mold, as well as devices to carry out this procedure. There are numerous methods of manufacture of components made of glass fiber reinforced plastic known.
Bei vielen dieser Verfahren sind die Fasern mit unlöslichen Bindern zu Glasseidenmatten oder Vorformlingen vorfabriziert.In many of these processes, the fibers are made with insoluble binders prefabricated into glass silk mats or preforms.
Die Erfindung hat sich zur Aufgabe gestellt, ein neuartiges Verfahren zur Herstellung von Bauteilen aus glasfaserverstärktem Kunststoff anzugeben, bei welchem keine unlöslichen Binder und/oder Vorformlinge notwendig sind, und welches eine wesentlich billigere Herstellung der Bauteile ermöglicht.The invention has set itself the task of a novel method for the production of components made of fiberglass-reinforced plastic, at which no insoluble binders and / or preforms are necessary, and which allows a much cheaper production of the components.
Diese Aufgabe wird bei einem Verfahren der eingangs genannten Art durch die im Kennzeichen des Patentanspruches angegebenen Maßnahmen erzielt.This task is performed in a method of the type mentioned at the beginning achieved by the measures specified in the characterizing part of the claim.
Ausgestaltungen des Verfahrens und der Vorrichtungen zur Durchführung des erfindungsgemäßen Verfahrens sind in den Unteransprüchen gekennzeichnet und werden nachstehend in Verbindung mit den Ausführungsbeispiele darstellenden Figuren erläutert. In den z.T. stark schematisch vereinfacht gezeichneten Figuren sind einander entsprechende Bauteile mit gleichen Bezugszeichen versehen.Refinements of the method and the devices for implementation of the method according to the invention are characterized in the subclaims and are illustrated below in connection with the exemplary embodiments explained. In the figures, some of which are drawn in a highly schematically simplified manner, there are one another corresponding components are provided with the same reference numerals.
Es zeigt: Fig. i einen Vertikalschnitt durch einen Teil des herzustellenden Bauteiles und den anliegenden Teil der Form in einem Zwischenstadium des Herstellungsvorganges, Fig. 2 einen Vertikalschnitt durch den in Fig. 1 dargestellten Teil, jedoch am Ende des Herstellungsvorganges, Fig. 3 einen Vertikalschnitt durch einen erfindungsgemäß hergestellten Bauteil und die zugehörigen Formteile, Fig. 4 einen Vertikalschnitt durch eine Einlage in den Unterteil der Form Fig. 5 einen Vertikalschnitt durch einen Teil des herzustellen~ den Bauteiles und den anliegenden Teil der Form in einem Zwischenstadium des Herstellungsvorgangs bei einer Variante des erfindungsgemäßen Herstellungsverfahrens unter Verwendung einer Einlage gemäß Fig. 4 Fig. i zeigt einen Formoberteil 2 und einen Formunterteil 3 mit dazwischen befindlicher GFK-Schicht 4. Zwischen Formoberteil und -GFK-Schicht befindet sich eine Platte 5 aus porösem Material, deren der GFK-Schiclt4 zugewendete Seite Poren hat, die mit den Stirnseiten bzw. Rändern der Platte 5 kommunizieren. Durch Pfeile 6 ist angedeutet, wie als Folge des Zusammenpressens von Formunterteil 3 und Formoberteil 2 die Luft aus der GFK-Schicht 4 in die Poren der Platte 5 entweicht und Pfeile 7 deuten an, wie diese Luft parallel zur Oberfläche der GFK-Schicht in Richtung zu den Stirnseiten bzw. Rändern der Platte 5 oder anderer Absaugstelle (i5,16) entweicht.It shows: FIG. 1 a vertical section through part of the to be produced Component and the adjacent part of the mold in an intermediate stage of the manufacturing process, Fig. 2 is a vertical section through the part shown in Fig. 1, but at the end of the manufacturing process, Fig. 3 is a vertical section through an inventive produced component and the associated molded parts, Fig. 4 is a vertical section through an insert in the lower part of the mold FIG. 5 shows a vertical section part of the component to be manufactured and the adjacent part of the mold in an intermediate stage of the manufacturing process in a variant of the invention Production method using an insert according to FIG. 4 FIG. I shows an upper mold part 2 and a lower mold part 3 with a GRP layer in between 4. Between the upper part of the mold and the GRP layer there is a plate 5 made of porous Material, the side facing the GRP-Schiclt4 has pores, which with the front sides or edges of the plate 5 communicate. Arrows 6 indicate how as As a result of the compression of the lower mold part 3 and the upper mold part 2, the air out of the GRP layer 4 escapes into the pores of the plate 5 and arrows 7 indicate how this Air parallel to the surface of the GRP layer in the direction of the front sides or Edges of the plate 5 or other suction point (i5,16) escapes.
In Fig. 2 ist durch Pfeile 9 angedeutet, daß der Formoberteil 2 und der Formunterteil 3 zusammengepreßt werden und die inzwischen praktisch blasenfreie GFK-Schicht stark verdichtet ist.In Fig. 2 it is indicated by arrows 9 that the upper mold part 2 and the lower mold part 3 are pressed together and the meanwhile practically bubble-free GRP layer is strongly compressed.
Fig. 3 zeigt - analog zu Fig. 2 - wie ein aus GFK-Schiht bestehender Formkörper 4A hergestellt wurde. Der Formunterteil 3 hat einen zentralen Zapfen li, der in eine entsprechende Ausnehmung 12 des Formoberteils 2 hineinragt und dadurch die Form zentriert.FIG. 3 shows - analogously to FIG. 2 - how one made of GFK-Schiht Molded body 4A was produced. The lower mold part 3 has a central pin li, which protrudes into a corresponding recess 12 of the upper mold part 2 and thereby centers the shape.
Zwischen Formoberteil 2 und Formunterteil 3 ist ein äußerer Ringkanal 13 und ein innerer Ringkanal 14 gebildet. Diese Ringkanäle und ein zwischen ihnen liegender Bereich 15 werden evakuiert, wie dies schematisch vereinfacht durch die- Pfeile 16 angedeutet ist. Zwischen den Rändern von Formoberteil 2 und Formunterteil 3 ist eine elastische Dichtung 17 angeordnet.Between the upper mold part 2 and the lower mold part 3 is an outer ring channel 13 and an inner ring channel 14 is formed. These ring channels and one between them lying area 15 are evacuated, as this is schematically simplified by the Arrows 16 is indicated. Between the edges of the upper mold part 2 and the lower mold part 3 an elastic seal 17 is arranged.
In vielen Fällen ist es zweckmäßig, wenn der Formunterteil zweiteilig ausgebildet ist und aus einem Außenteil 3 und einer der Form des herzustellenden Bauteiles angepaßten dnnwandigen Einlage 3A besteht. In diesem Fall wird die GFK-Schicht direkt auf die Einlage 3A adtespritzt und dann erst die Einlage mit aufge spritzter GFK-Schicht in den Außenteil des Unterteils 3 eingesetzt (Fig. 4).In many cases it is useful if the lower part of the mold is in two parts is formed and from an outer part 3 and one of the shape of the to be produced Component adapted thin-walled insert 3A consists. In this case the GRP layer is used sprayed directly onto the insert 3A and only then the insert with sprayed on GRP layer inserted into the outer part of the lower part 3 (Fig. 4).
Es ist im allgemeinen zweckmäßig, wenn vor dem Aufspritzen der GFK-Schicht 4 auf die außerhalb des Unterteils 3 befindliche Einlage 3A eine Gelcoat-Schicht 19 aufgespritzt wird, wie dies in Fig. 5 angedeutet ist. Hierbei wird der Gelcoat erst polymerisiert, ehe die GFK-Schicht aufgebracht wird.It is generally useful if the GRP layer is sprayed on 4 a gelcoat layer on the insert 3A located outside the lower part 3 19 is sprayed on, as indicated in FIG. This is where the gelcoat only polymerized before the GRP layer is applied.
Wenn die Platte aus einem biegsamen porösen Material besteht, das auf der dem GFK zugewendeten Seite mit einer perforierten, vorzugsweise schwach vorspringende Rippen aufweisenden, biegsamen Deckschicht 20 aus z.B. einer dünnen Metallplatte oder einer gerippten Kunststoffschicht besteht, dann bietet dies den Vorteil, daß die poröse Schicht 4 mehrfach verwendbar ist. Denn nach jeder Verformung kann die Deckschicht 20 von der zugehörigen Platte 5 abgezogen, anschließend gereinigt und wieder verwendet werden.If the plate is made of a pliable porous material that on the side facing the GRP with a perforated, preferably weak one A flexible cover layer 20 having protruding ribs, for example a thin one Metal plate or a ribbed plastic layer, then this offers the Advantage, that the porous layer 4 can be used several times. Because after every deformation can the cover layer 20 is pulled off the associated plate 5, then cleaned and be used again.
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792933960 DE2933960A1 (en) | 1979-08-22 | 1979-08-22 | Glass reinforced plastic moulding - where where closed two=part mould is evacuated after loading bottom tool with GRP deposit plus porous sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792933960 DE2933960A1 (en) | 1979-08-22 | 1979-08-22 | Glass reinforced plastic moulding - where where closed two=part mould is evacuated after loading bottom tool with GRP deposit plus porous sheet |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2933960A1 true DE2933960A1 (en) | 1981-03-12 |
Family
ID=6079032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19792933960 Withdrawn DE2933960A1 (en) | 1979-08-22 | 1979-08-22 | Glass reinforced plastic moulding - where where closed two=part mould is evacuated after loading bottom tool with GRP deposit plus porous sheet |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2933960A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3325327A1 (en) * | 1982-07-24 | 1984-01-26 | Rolls-Royce Ltd., London | VACUUM FORMING PROCESS |
EP0415870A2 (en) * | 1989-08-28 | 1991-03-06 | United Technologies Corporation | Preform liners for resin transfer molding |
US5226997A (en) * | 1989-08-28 | 1993-07-13 | United Technologies Corporation | Mold liners for resin transfer molding |
DE102007001908A1 (en) | 2007-01-12 | 2008-07-17 | Audi Ag | Component i.e. vehicle body parts, manufacturing method, involves correspondingly overlaying fiber reinforcement on component, extensively draping form-stable shell, and subsequently impregnating reinforcement with resin in closed tools |
-
1979
- 1979-08-22 DE DE19792933960 patent/DE2933960A1/en not_active Withdrawn
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3325327A1 (en) * | 1982-07-24 | 1984-01-26 | Rolls-Royce Ltd., London | VACUUM FORMING PROCESS |
EP0415870A2 (en) * | 1989-08-28 | 1991-03-06 | United Technologies Corporation | Preform liners for resin transfer molding |
EP0415870A3 (en) * | 1989-08-28 | 1991-09-04 | United Technologies Corporation | Preform liners for resin transfer molding |
US5134002A (en) * | 1989-08-28 | 1992-07-28 | United Technologies Corporation | Mold liners for resin transfer molding |
US5226997A (en) * | 1989-08-28 | 1993-07-13 | United Technologies Corporation | Mold liners for resin transfer molding |
DE102007001908A1 (en) | 2007-01-12 | 2008-07-17 | Audi Ag | Component i.e. vehicle body parts, manufacturing method, involves correspondingly overlaying fiber reinforcement on component, extensively draping form-stable shell, and subsequently impregnating reinforcement with resin in closed tools |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102010025068B4 (en) | Apparatus and process for the production of fiber reinforced components | |
DE3532424A1 (en) | METHOD AND DEVICE FOR VENTILATING AN INJECTED SOCKET WITH ACCURATE DIMENSIONS ON THE SCOPE OF A LEVEL OR DAMPED PART WITH DIMENSION TOLERANCES AND COMPOSED PRODUCT THEREFORE | |
DE3739753C2 (en) | ||
EP0348831A2 (en) | Method and apparatus for producing moulded parts from curable plastic material | |
DE19926896A1 (en) | Vacuum forming of resin-impregnated composites uses a flexible mold surface and air pressure to control resin distribution in flow channels | |
EP0860261B1 (en) | Method to produce an elastic mat | |
DE4120897A1 (en) | Veneered component for automobiles, planes and component mfr. - has visible surface of veneer placed against tool surface with resin injected at specified temp. and pressure | |
DE2746173A1 (en) | DEVICE FOR THE MANUFACTURING OF COMPONENTS FROM FIBER-REINFORCED PLASTICS | |
DE2933960A1 (en) | Glass reinforced plastic moulding - where where closed two=part mould is evacuated after loading bottom tool with GRP deposit plus porous sheet | |
DE1296361B (en) | Process for the production of multilayer, glass fiber reinforced molded parts from thermoplastic material | |
DE102012013538B4 (en) | Process for the production of sandwich elements | |
DE3317674C2 (en) | ||
DE3536272A1 (en) | Process for producing a fibre-composite laminate moulding | |
DE19544426C1 (en) | Method and device for producing composite tubs | |
DE3915693C1 (en) | Moulding finishing arrangement - includes FRP forming air tight contact with moulding | |
DE3726395A1 (en) | MOLD FOR PRINTING SLICK ENERGY AND METHOD FOR THEIR PRODUCTION | |
DE4201096C2 (en) | Mold for the production of foam moldings | |
EP0343511B1 (en) | Method for producing shell-like moulded articles | |
DE2210780C3 (en) | Procedure for creating degassing wells | |
DE2757958A1 (en) | Plastic tank shell rim - mfd. in multipart mould with insert covered by elastomer | |
DE2104585A1 (en) | Edge zone reinforced mouldings - with foam plastic core | |
DD285016A5 (en) | SUITCASE BAG AND METHOD OF MANUFACTURING THE SAME | |
EP3988438A1 (en) | Insulating panel, device for manufacturing an insulating panel and method of manufacturing the same | |
DE102017221569A1 (en) | FORM PART AND METHOD FOR THE PRODUCTION THEREOF | |
DE102020008112A1 (en) | Insulation panel and device for manufacturing an insulation panel |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8120 | Willingness to grant licences paragraph 23 | ||
8139 | Disposal/non-payment of the annual fee |