NO135235B - - Google Patents
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- Publication number
- NO135235B NO135235B NO2397/71A NO239771A NO135235B NO 135235 B NO135235 B NO 135235B NO 2397/71 A NO2397/71 A NO 2397/71A NO 239771 A NO239771 A NO 239771A NO 135235 B NO135235 B NO 135235B
- Authority
- NO
- Norway
- Prior art keywords
- resin
- foam
- board
- layer
- impregnated
- Prior art date
Links
- 229920005989 resin Polymers 0.000 claims description 45
- 239000011347 resin Substances 0.000 claims description 45
- 239000006260 foam Substances 0.000 claims description 43
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 239000012779 reinforcing material Substances 0.000 claims description 6
- 229920001187 thermosetting polymer Polymers 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims 2
- 239000007788 liquid Substances 0.000 description 5
- 239000011152 fibreglass Substances 0.000 description 4
- 239000006261 foam material Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- SPJMAPNWDLIVRR-UHFFFAOYSA-M sodium;3-chloro-2-phenylphenolate Chemical compound [Na+].[O-]C1=CC=CC(Cl)=C1C1=CC=CC=C1 SPJMAPNWDLIVRR-UHFFFAOYSA-M 0.000 description 4
- 238000009998 heat setting Methods 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/08—Impregnating
-
- 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
-
- 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
- B29C70/467—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 and impregnating the reinforcements during mould closing
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- 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
- B29K2105/045—Condition, form or state of moulded material or of the material to be shaped cellular or porous with open cells
-
- 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
-
- 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
- B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
-
- 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
- B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
- B29K2309/08—Glass
-
- 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
- B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
- B29K2309/12—Asbestos
-
- 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
- B29K2311/00—Use of natural products or their composites, not provided for in groups B29K2201/00 - B29K2309/00, as reinforcement
- B29K2311/10—Natural fibres, e.g. wool or cotton
-
- 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
- B29K2311/00—Use of natural products or their composites, not provided for in groups B29K2201/00 - B29K2309/00, as reinforcement
- B29K2311/12—Paper, e.g. cardboard
Description
Den foreliggende oppfinnelse angår en fremgangsmåte ved fremstilling av en stiv, armert skumgjenstand med varmeherdende ha rpiks. The present invention relates to a method for producing a rigid, reinforced foam object with heat-setting resin.
En gjenstand av varmtherdende harpiks kan fremstilles i eller på en stopeform hvor stopeformens overflate fortrinsvis er dekket med et slippmiddel. Et lag av et fiberformig forstexkende materiale, f.eks. et lag av glassfiber, legges på stbpeformens overflate,og dette lag impregneres derefter med en uherdet, væskeformig termoherdende harpiks som tillates å herde og stivne. An object of thermosetting resin can be produced in or on a stop mold where the surface of the stop mold is preferably covered with a release agent. A layer of a fibrous reinforcing material, e.g. a layer of fiberglass is placed on the surface of the mold, and this layer is then impregnated with an uncured, liquid thermosetting resin that is allowed to harden and harden.
Den væskeformige harpiks påfores vanligvis for hånd, og denne tek-nikk er således kjent som håndopplegningsmetoden. Den manuelle påforing av harpiksen er imidlertid tidkrevende og kostbar, og videre er kvaliteten av det impregnerte produkt ikke den samme over de forskjellige områder av produktet, hvilket er resultat av ikke ensartet impregnering med harpiksen. The liquid resin is usually applied by hand, and this technique is thus known as the hand application method. However, the manual application of the resin is time-consuming and expensive, and furthermore the quality of the impregnated product is not the same over the different areas of the product, which is the result of non-uniform impregnation with the resin.
En side av den foreliggende oppfinnelse er å fremskaffe One aspect of the present invention is to provide
en forbedret fremgangsmåte ved hvilken gjenstanden kan fremstil- an improved method by which the object can be produced
les raskere og enklere, og ved hvilken gjenstanden har ensartet kvalitet over hele overflaten. read faster and easier, and by which the object has uniform quality over the entire surface.
Oppfinnelsen bygger på den idé å benytte en plate av skummateriale som bærer eller hjelpemiddel ved påforing av harpiksen. Det er ikke vanskelig å impregnere mange typer skumplater ensartet med væskeformig harpiks, og denne impregnerte plate kan sammenpresses på det fiberformige forsterkende lag for således å avpresse harpiksen og derved fullt ut impregnere det fiberformige lag. The invention is based on the idea of using a sheet of foam material as a carrier or aid when applying the resin. It is not difficult to uniformly impregnate many types of foam boards with liquid resin, and this impregnated board can be pressed together on the fibrous reinforcing layer to thus squeeze out the resin and thereby fully impregnate the fibrous layer.
Fra britisk patentskrift 1.068.503 er det kjent å pres- From British patent document 1,068,503 it is known to pres-
se en harpiksimpregnert skumplate og et fiberaktig lag sammen, og harpiksen i det sammenpressede lag tillates å herde. Imidlertid sammenpresses ikke skumplaten for å impregnere det fiberaktige bond a resin-impregnated foam board and a fibrous layer together, and the resin in the compressed layer is allowed to cure. However, the foam board is not compressed to impregnate the fibrous
lag, men bare for å fylle dets hulrom fullt ut med harpiks slik at skumplaten med den herdede harpiks får et læraktig utseende på grunn av de åpne harpiksfyllte celler i skumplaten. Det fiberaktige lag impregneres separat med harpiks, eller flytende harpiks helles over dette efter at det er anbragt i kontakt med skumplaten. layer, but only to fully fill its cavities with resin so that the foam board with the cured resin has a leathery appearance due to the open resin-filled cells of the foam board. The fibrous layer is impregnated separately with resin, or liquid resin is poured over it after it has been placed in contact with the foam board.
OppfinneIsen angår folgelig en fremgangsmåte ved fremstilling av en stiv, armert skumgjenstand med varmtherdende harpiks, ved hvilken en plate som har skumstruktur med åpne celler impregneres med en varmtherdende harpiks, og hvor et lag av et fiberformig forsterkende materiale påfores én eller begge sider av den impregnerte skumplate, hvorefter skumplaten og det forsterkende lag sammenpresses og harpiksen i platen og laget tillates å herde under opprettholdelse av kompresjonen, hvilken fremgangsmåte er kjennetegnet ved at skumplaten sammenpresses under slike betingelser at det fiberformige lag impregneres gjennom hele sin tykkelse med harpiks som presses ut av skumplaten. The invention therefore relates to a method for the production of a rigid, reinforced foam object with heat-setting resin, in which a plate having a foam structure with open cells is impregnated with a heat-setting resin, and where a layer of a fibrous reinforcing material is applied to one or both sides of the impregnated foam board, after which the foam board and the reinforcing layer are compressed and the resin in the board and layer is allowed to harden while maintaining the compression, which method is characterized by the foam board being compressed under such conditions that the fibrous layer is impregnated throughout its thickness with resin that is pressed out of the foam board .
Den varmtherdende harpiks er fortrinsvis en epoxyharpiks eller en polyesterharpiks, men andre typer varmtherdende harpikser • kan benyttes. Platen som har en skumstruktur med åpne celler, som kort refereres til i den foreliggende beskrivelse som skumplaten, The thermosetting resin is preferably an epoxy resin or a polyester resin, but other types of thermosetting resins • can be used. The board having an open cell foam structure, briefly referred to in the present description as the foam board,
er hensiktsmessig fremstillet av et termoplastisk materiale. Andre materialer for pléiten er polyurethaner og elastomere. is suitably made of a thermoplastic material. Other materials for the pleat are polyurethanes and elastomers.
Selv om platen kan utformes av relativt stivt skummateriale, er det i alminnelighet foretrukket å benytte fleksible materialer som er enklere å impregnere. En plate av fleksibelt skummateriale kan neddykkes i et bad som inneholder den væskeformige harpiks og sammenpresses i badet ved gjennomlop mellom sam-menpresningsva Iser for å drive ut luft fra det cellulære volum i skummaterialet. Om onskelig kan den neddyppede plate, efter at den forlater badet, ledes mellom et ytterligere sett valser for å redusere harpiksme:ngden som inneholdes i platen. Det er imidlertid vanligvis onskelig at platen impregneres med harpiks således» Although the plate can be made of relatively rigid foam material, it is generally preferred to use flexible materials that are easier to impregnate. A sheet of flexible foam material can be immersed in a bath containing the liquid resin and compressed in the bath by passing between compression tubes to expel air from the cellular volume of the foam material. If desired, the dipped plate, after leaving the bath, may be passed between a further set of rollers to reduce the amount of resin contained in the plate. However, it is usually desirable for the plate to be impregnated with resin thus"
at minst 25 % av det åpne cellevolum av den ikke sammenpressede plate fylles, og denne prosentverdi er hensiktsmessig ca. 35 % eller mere. that at least 25% of the open cell volume of the uncompressed plate is filled, and this percentage value is suitably approx. 35% or more.
Efter at skumplaten er*blitt impregnert til den onskede grad, påfores et lag av fiberformig forsterkende materiale på én side av platen. I praksis kan sammenstillingen som dannes av skumplaten og det fiberformige lag fremstilles utenfor formen og derefter overfores til formen og anbringes i kontakt med formens overflate. Alternativt kan det fiberformige lag forst legges på formens overflate,og den impregnerte skumplate påfores derefter det fiberformige lag. I begge tilfeller kan man finne det onskelig å tillate harpiksen i skumplaten delvis å herde for platen anbringes i formen. Dersom harpiksen herdes delvis, f.eks. til Br stadiet, gjor den okede viskositet til harpiksen at platen er enklere å håndtere. After the foam board has been impregnated to the desired degree, a layer of fibrous reinforcing material is applied to one side of the board. In practice, the assembly formed by the foam board and the fibrous layer can be produced outside the mold and then transferred to the mold and placed in contact with the surface of the mold. Alternatively, the fibrous layer can first be laid on the surface of the mold, and the impregnated foam board is then applied to the fibrous layer. In either case, it may be found desirable to allow the resin in the foam board to partially cure before the board is placed in the mold. If the resin partially hardens, e.g. to the Br stage, the increased viscosity of the resin makes the plate easier to handle.
Det neste trinn er anvendelsen av trykk på sammenstillingen, eksempelvis ved å presse en annen overflate av stopeformen mot sammenstillingen. Trykket må være tilstrekkelig til å sammenpresse skumplaten i så hoy grad at harpiksen fra platen presses ut fra platen og inn i det fiberformige lag, hvorved dette fullsten-dig impregneres gjennom hele sin tykkelse. Graden av sammenpresning av skumplaten avhenger av harpiksvolumet som er opptatt i platen under impregneringen, og det nodvendige volum harpiks for å impregnere det fiberformige lag. Vanligvis vil det være nodvendig å sammenpresse skumplaten til 30 % eller mindre av dens opprinne-lige tykkelse. Mens trykket opprettholdes tillates harpiksen i den sammenpressede sammenstilling å herde, hvorved den blir hård, hvorefter trykket kan avlastes, og gjenstanden som er dannet av den herdede sammenstilling kan fjernes fra formen. Det må bemer-kes at enkelte ganger er den sammenpressede og herdede plate i gjenstanden ikke lenger skumstruktur med åpne celler, men i stedet er den gått over til et kompakt og synlig fast lag uten tomrom, og folgelig er dette lag ikke sammenlignbart med harpiksfuktede skum-plastmaterialer som herdes uten anvendelse av sammenpresning. The next step is the application of pressure to the assembly, for example by pressing another surface of the stop mold against the assembly. The pressure must be sufficient to compress the foam board to such a high degree that the resin from the board is pressed out of the board and into the fibrous layer, whereby this is completely impregnated throughout its thickness. The degree of compression of the foam board depends on the volume of resin occupied in the board during the impregnation, and the necessary volume of resin to impregnate the fibrous layer. Usually it will be necessary to compress the foam board to 30% or less of its original thickness. While the pressure is maintained, the resin in the compressed assembly is allowed to harden, whereupon it hardens, whereupon the pressure can be relieved, and the article formed by the hardened assembly can be removed from the mold. It must be noted that sometimes the compressed and hardened plate in the object is no longer an open-cell foam structure, but instead has changed to a compact and visible solid layer without voids, and consequently this layer is not comparable to resin-moistened foams - plastic materials which are hardened without the use of compression.
I stedet for bare ett fiberformig lag kan to slike lag påfores skumplaten, ett på hver side av denne. Skumplaten må da inneholde tilstrekkelig harpiks og sammenpresses tilstrekkelig til å impregnere begge fiberformige lag tilstrekkelig. Det er også mulig å utforme gjenstanden fra en sammenstilling omfattende to eller flere impregnerte skumplater som ligger vekselvis med fiberformige lag mellom hver skumplate. Instead of just one fibrous layer, two such layers can be applied to the foam board, one on each side of it. The foam board must then contain sufficient resin and be compressed sufficiently to sufficiently impregnate both fibrous layers. It is also possible to design the object from an assembly comprising two or more impregnated foam sheets which lie alternately with fibrous layers between each foam sheet.
Sammenpresningen av skumplaten og det fiberformige lag kan utfores selektivt over overflaten av disse, således at den to-tale tykkelse av den sammenpressede plate og det fiberformige lag enkelte ganger ikke er ensartet. Når der benyttes en skumplate og et fiberformig lag med opprinnelig ensartet tykkelse, er det folgelig mulig å utforme gjenstanden med fordypninger eller forhøynin-ger som måtte være onskelig av hensyn til form eller styrke. The compression of the foam board and the fibrous layer can be carried out selectively over the surface of these, so that the double thickness of the compressed board and the fibrous layer is sometimes not uniform. When a foam board and a fibrous layer of initially uniform thickness are used, it is consequently possible to design the object with recesses or elevations which may be desirable for reasons of shape or strength.
Laget av fiberformig forsterkningsmateriale er vanligvis en glassfibermatte eller en ikke-vevet glassfiberduk. The fibrous reinforcing material made is usually a fiberglass mat or a non-woven fiberglass cloth.
Fremgangsmåten ifolge oppfinnelsen utfores vanligvis ved benyttelse av en sropeform som efter behov kan ha en rettformet, bueformet eller profilert overflate. Dersom imidlertid gjenstanden som skal fremstilles er et stivt ark eller plate, er det mulig å lede den impregnerte skumplate med det fiberformige lag mellom sammenpresningsanordninger som utsetter sammenstillingen for den nodvendige sammenpresning, mens harpiksen herdes under den nevnte gjennomgang. Sammenpresningsanordningen kan bestå av valser eller av to motstående kontinuerlige belter. For å sikre at harpiksen har herdet for sammenstillingen forlater sammenpresningsanordningen kan der velges en hurtigherdende harpiks, og/eller varme kan tilfores harpiksen f.eks. ved å anvende oppvarmede sammenpresningsanordninger for å korte herdetiden. The method according to the invention is usually carried out by using a mold which, as required, can have a straight, curved or profiled surface. If, however, the object to be produced is a rigid sheet or plate, it is possible to guide the impregnated foam board with the fibrous layer between compression devices which expose the assembly to the necessary compression, while the resin hardens during the mentioned passage. The compression device can consist of rollers or of two opposite continuous belts. To ensure that the resin has hardened before the assembly leaves the compression device, a fast-hardening resin can be selected, and/or heat can be applied to the resin, e.g. by using heated compression devices to shorten the curing time.
Fremgangsmåten ifolge oppfinnelsen er spesielt velegnet til å lage store gjenstander på relativt kort tid, f.eks. for fremstilling av båtskrog, eftersom den tillater at store arealer fiberformig forsterkningsmateriale impregneres på én gang. The method according to the invention is particularly suitable for making large objects in a relatively short time, e.g. for the manufacture of boat hulls, as it allows large areas of fibrous reinforcement material to be impregnated at once.
Impregneringen av skumplaten kan enkelt og raskt oppnåes The impregnation of the foam board can be easily and quickly achieved
i et bad som inneholder harpiksen og hvor platen tilfores fra en tilfbrselsvaIse og fra hvilket bad platen trekkes ut, hvor hele ar-beidsoperasjonen utfores kontinuerlig. Den fullstendige sammenstilling av impregnert skumplate og fiberformig lag kan også være ma-skinf remsti Het. in a bath which contains the resin and where the plate is supplied from a supply vessel and from which bath the plate is withdrawn, where the entire working operation is carried out continuously. The complete assembly of impregnated foam board and fibrous layer can also be ma-skinf remsti Het.
Eksempel Example
En plate av fleksibelt polyurethanskum med tykkelse 10 mm ble dyppet i et epoxyharpikssystem og ledet gjennom valser for å presse av overskytende harpiks, således at ca. 2 kg harpiks forble i platen pr. kvadratmeter overflatearea1. A sheet of flexible polyurethane foam with a thickness of 10 mm was dipped in an epoxy resin system and passed through rollers to press off excess resin, so that approx. 2 kg of resin remained in the plate per square meter surface area1.
Den impregnerte plate ble herdet til B-stadiet i 75 sekunder ved 180°C. The impregnated plate was cured to the B stage for 75 seconds at 180°C.
En glassfibermatte ble anbragt på én side av platen, og laminatsammenstillingen ble anbragt i en varm stopeform (180°C) og trykk ble anvendt i 80 sekunder. A fiberglass mat was placed on one side of the plate and the laminate assembly was placed in a hot stop mold (180°C) and pressure was applied for 80 seconds.
Sluttykkelsen for laminatet var 2-3 mm. The final thickness of the laminate was 2-3 mm.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3110170 | 1970-06-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO135235B true NO135235B (en) | 1976-11-29 |
| NO135235C NO135235C (en) | 1977-03-09 |
Family
ID=10317990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO2397/71A NO135235C (en) | 1970-06-26 | 1971-06-24 |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5412510B1 (en) |
| AT (1) | AT321564B (en) |
| BE (1) | BE768625A (en) |
| CA (1) | CA947924A (en) |
| CH (1) | CH552655A (en) |
| DE (1) | DE2131472C3 (en) |
| GB (1) | GB1266097A (en) |
| NL (1) | NL7108762A (en) |
| NO (1) | NO135235C (en) |
| SE (1) | SE370042B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3989781A (en) * | 1971-08-17 | 1976-11-02 | Shell Oil Company | Process for producing a fibrous reinforced thermosetting resin impregnated foamed polymeric resin article |
| GB1332274A (en) * | 1972-04-19 | 1973-10-03 | Shell Int Research | Method of producing an article impregnated with thermosetting resin |
| US4000097A (en) * | 1972-04-24 | 1976-12-28 | Shell Oil Company | Preparation of a thermosetting resin article |
| GB1348862A (en) | 1972-04-24 | 1974-03-27 | Shell Int Research | Method of producingan article impregnated with thermosetting resin |
| US4124678A (en) * | 1975-04-11 | 1978-11-07 | Sipler Plastics, Inc. | Method of making tortuous tubular articles |
| GB1598431A (en) | 1977-01-20 | 1981-09-23 | Secr Defence | Methods of making adhesive bonds |
| US4230521A (en) * | 1979-04-26 | 1980-10-28 | Composite Technology Corporation | Foam impregnating apparatus |
| JPS58217352A (en) * | 1982-06-10 | 1983-12-17 | 日産自動車株式会社 | Manufacture of various covers for engine |
| DE3629222A1 (en) * | 1986-08-28 | 1988-03-10 | Pelz Ernst Erpe Vertrieb | METHOD FOR PRODUCING A CLADDING PART AND THE COVERING PART PRODUCED THEREOF |
| JP4558091B1 (en) * | 2009-10-29 | 2010-10-06 | 株式会社イノアックコーポレーション | Fiber-reinforced molded body and method for producing the same |
| DE102010062057A1 (en) * | 2010-11-26 | 2012-01-19 | Basf Se | Process for the production of composite materials |
| DE102012022476A1 (en) * | 2012-11-19 | 2014-05-22 | Technische Universität München | Method for producing a component from a fiber composite material, press molding for this and component |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1544901C3 (en) * | 1965-04-09 | 1978-09-07 | Freeman Chemical Corp., Port Washington, Wis. (V.St.A.) | Method of making a layer of reinforced foam |
| GB1068503A (en) * | 1965-04-09 | 1967-05-10 | Freeman Chemical Corp | Improvements in or relating to moulded or laminated articles and methods for preparing same |
| CH454440A (en) * | 1967-01-27 | 1968-04-15 | Contraves Ag | Process for producing a lightweight construction material and lightweight construction material produced by the process |
-
1970
- 1970-06-26 GB GB3110170A patent/GB1266097A/en not_active Expired
-
1971
- 1971-06-17 BE BE768625A patent/BE768625A/en not_active IP Right Cessation
- 1971-06-24 CH CH928971A patent/CH552655A/en not_active IP Right Cessation
- 1971-06-24 CA CA116,577A patent/CA947924A/en not_active Expired
- 1971-06-24 NO NO2397/71A patent/NO135235C/no unknown
- 1971-06-24 SE SE08220/71A patent/SE370042B/xx unknown
- 1971-06-24 AT AT550071A patent/AT321564B/en not_active IP Right Cessation
- 1971-06-24 DE DE2131472A patent/DE2131472C3/en not_active Expired
- 1971-06-24 JP JP4531571A patent/JPS5412510B1/ja active Pending
- 1971-06-24 NL NL7108762A patent/NL7108762A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| NO135235C (en) | 1977-03-09 |
| CA947924A (en) | 1974-05-28 |
| GB1266097A (en) | 1972-03-08 |
| CH552655A (en) | 1974-08-15 |
| SE370042B (en) | 1974-09-30 |
| DE2131472B2 (en) | 1980-08-07 |
| JPS5412510B1 (en) | 1979-05-23 |
| DE2131472A1 (en) | 1972-01-05 |
| BE768625A (en) | 1971-12-17 |
| AT321564B (en) | 1975-04-10 |
| DE2131472C3 (en) | 1981-03-12 |
| NL7108762A (en) | 1971-12-28 |
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