NO130859B - - Google Patents
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- NO130859B NO130859B NO04956/71A NO495671A NO130859B NO 130859 B NO130859 B NO 130859B NO 04956/71 A NO04956/71 A NO 04956/71A NO 495671 A NO495671 A NO 495671A NO 130859 B NO130859 B NO 130859B
- Authority
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- Norway
- Prior art keywords
- impregnation
- rollers
- carbon fiber
- resin
- wound
- Prior art date
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- 229920000049 Carbon (fiber) Polymers 0.000 claims description 43
- 239000004917 carbon fiber Substances 0.000 claims description 43
- 238000005470 impregnation Methods 0.000 claims description 43
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 37
- 239000011347 resin Substances 0.000 claims description 37
- 229920005989 resin Polymers 0.000 claims description 37
- 238000004804 winding Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 241001116389 Aloe Species 0.000 claims 1
- 235000011399 aloe vera Nutrition 0.000 claims 1
- 239000000835 fiber Substances 0.000 description 24
- 239000000463 material Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002657 fibrous material Substances 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000009730 filament winding Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- -1 however Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
- D06B1/14—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller
- D06B1/141—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller where an element is used to mitigate the quantity of treating material on the roller
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
- B65H49/18—Methods or apparatus in which packages rotate
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
- D01F11/10—Chemical after-treatment of artificial filaments or the like during manufacture of carbon
- D01F11/14—Chemical after-treatment of artificial filaments or the like during manufacture of carbon with organic compounds, e.g. macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
- B65H2701/314—Carbon fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/37—Tapes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/902—High modulus filament or fiber
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2918—Rod, strand, filament or fiber including free carbon or carbide or therewith [not as steel]
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
Description
Fremgangsmåte og anordninq for impregnering av carbonfiberstrenger og -bånd. Method and device for impregnation of carbon fiber strings and bands.
Det er tidligere kjent å innstope fibermaterialer av forskjel- It is previously known to insert fiber materials of different
lige materialer i plastgrunnmasser eller metaller for derigjennom å forsterke det aktuelle grunnmassemateriale. equal materials in plastic base materials or metals in order to thereby reinforce the base material in question.
Den effekt som derved etterstrebes, avhenger i hoy grad av for-sterkningsmaterialets egenskaper. The effect that is thereby sought depends to a large extent on the properties of the reinforcement material.
Fibermaterialer med hoy strekkfasthet og forholdsvis hoy E-modul (strekkfasthet or"B inntil ^60 kp/mm<2>, E-modul E = 7.000 - 10.000 Fiber materials with high tensile strength and relatively high E-modulus (tensile strength or"B up to ^60 kp/mm<2>, E-modulus E = 7,000 - 10,000
kp/mm<2>) på basis av forskjellige glasstyper har vært benyttet i flere år 1 form av matter, vevede varer, rovings etc. for plastforsteik- kp/mm<2>) on the basis of different glass types have been used for several years 1 form of mats, woven goods, rovings etc. for plastic pre-
ning. nothing.
En spesiell fremgangsmåte for fremstilling av glassfiberfor-sterkene sammensatte materialer er fiberviklingsfremgangsmåten ("filament winding"). Som bekjent kan i henhold til en sådan fremgangsmåte rotasjonslegemer fremstilles hvor enkelte rovings eller også bånd av rovings med storre lengde anvendes som forsterknings-materiale. Som grunnmassematerialer benyttes ofte UP- og EP-harpikser. A special method for producing the glass fiber-reinforced composite materials is the fiber winding method ("filament winding"). As is known, in accordance with such a method, rotary bodies can be produced where individual rovings or also bands of rovings of greater length are used as reinforcement material. UP and EP resins are often used as base materials.
Siden endel år. tilbake har man.gått over til å fremstille og bearbeide forsterkningsfibre for sammensatte materialer for hoyere krav, hvilke forsterkningsfibre i forhold, til glassfibre oppviser hoyere fasthetsegenskaper. Man kan her i-forste rekke nevne bor-tråder og carbonfibre. Da den foreliggende oppfinnelsesgjenstand angår en spesiell fremgangsmåte ved bearbeidelse av carbonfibre, skal det i det folgende bare redegjores for disse fibre. Since the end of the year. In the past, people have switched to manufacturing and processing reinforcement fibers for composite materials for higher requirements, which reinforcement fibers in relation to glass fibers exhibit higher strength properties. Boron threads and carbon fibers can be mentioned here in the first place. As the subject of the present invention relates to a special method for processing carbon fibres, only these fibers shall be explained in the following.
Siden det er lykkes å fremstille carbonfibre med tilstrekkelig jevnhet i store lengder ( ^ 1000 ra), har disse for sterkningsf ibre blitt interessante for anvendelsesområder hvor disse.store lengder ubetinget er nodvendige, f.eks. ved vikling av beholdere etc. Sammenlignet med de konvensjonelle glassfibre oppviser imidlertid carbonfibre betydelige ulemper ved bearbeidelsen. Således er disse eksempelvis på grunn av deres ca. 3 5 ganger hoyere E-modul sammenlignet med glassfibre vesentlig mere omfintlige for knekking. Antallet brutte hhv. skadede-fibre i en streng av eksempelvis 10.000 elementærfibre er vesentlig storre enn i en lignende glassfiberstreng. Disse omstendigheter må ved bearbeidelse av carbonfiberstrenger ifolge fiberviklingsfremgangsmåten i hoy grad tas med i beregningen når et viklet legeme skal fremstilles med oppnåelse av en hoy pro-sentvis utnyttingsgrad av carbonfibrenes fasthetsegenskaper. Since it has been successful to produce carbon fibers with sufficient uniformity in large lengths ( ^ 1000 ra), these for reinforcing fibers have become interesting for areas of application where these large lengths are absolutely necessary, e.g. when wrapping containers etc. Compared to the conventional glass fibres, however, carbon fibers exhibit significant disadvantages during processing. Thus, these are, for example, due to their approx. 3 5 times higher E-modulus compared to glass fibres, significantly more prone to breaking. The number of broken or damaged fibers in a string of, for example, 10,000 elementary fibers are significantly larger than in a similar glass fiber string. When processing carbon fiber strands according to the fiber winding procedure, these circumstances must be taken into account to a large extent in the calculation when a wound body is to be produced with the achievement of a high percentage utilization of the carbon fibers' strength properties.
Vanligvis oppvikles carbonfibrene som skal anvendes, med uregulert vikling på spolelegemer, dvs. med en vinkel på ca„ h5 - 70° i forhold til spolens lengdeakse og i lengder på ca. 500 - 600 m. Dersom nå carbonfiberstrengen trekkes av med en kraft på ca. 500 p og mer fra spolen, er det uunngåelig at carbonfiberstrengen som'er oppviklet i kryssgående lag, i betydelig grad kan skades under av-trekkingen. Usually, the carbon fibers to be used are wound with unregulated winding on coil bodies, i.e. at an angle of approx. h5 - 70° in relation to the longitudinal axis of the coil and in lengths of approx. 500 - 600 m. If the carbon fiber string is now pulled off with a force of approx. 500 p and more from the coil, it is inevitable that the carbon fiber strand, which is wound in crosswise layers, can be significantly damaged during the pull-off.
Det er fra DT-0S 1916262 kjent for fremstilling av viklede gjenstander av impregnerte fibre å trekke fibermateriale av fra en lagerrull ved hjelp av en spennvalse og derefter fore den ene side C av fibermaterialet over en impregneringsvalse.som er neddykket i/et harpiksbad, for den på en side impregnerte fiberstreng fores over en andre bremsevalse for opprettholdelse av en konstant trådspenning og vikles opp på en kjerrié. En slik anordning er imidlertid uegnet når carbonfibre anvendes som viklingsmateriale da disse kan fores over valser under strekk bare når de er fullstendig impregnerte. It is known from DT-0S 1916262 for the production of wound articles from impregnated fibers to pull fiber material from a stock roll with the aid of a tension roller and then pass one side C of the fiber material over an impregnation roller, which is immersed in/a resin bath, for the one-sided impregnated fiber strand is fed over a second brake roller to maintain a constant thread tension and is wound up on a carrier. However, such a device is unsuitable when carbon fibers are used as winding material, as these can be fed over rollers under tension only when they are completely impregnated.
En to-sidig impregnering av fibre er i og for seg kjent fra Kunststoffe 1967, s. hvor en fiberstreng fores gjennom en harpikstverrstrom. En slik fremgangsmåte forer imidlertid til.en ujevn skikttykkelse på fiber strengen, spesielt hvis impregnerings-væsken har hoy viskositet. A two-sided impregnation of fibers is known in and of itself from Kunststoffe 1967, p. where a fiber strand is fed through a resin crossflow. However, such a method leads to an uneven layer thickness on the fiber strand, especially if the impregnation liquid has a high viscosity.
I henhold til den foreliggende oppfinnelse er det tilveiebragt en fremgangsmåte for impregnering av carbonfiberstrenger, ved hvilken fremgangsmåte det sikres en meget jevn harpiksfordeling på fiberstrengen og andelen av skadede elementærfibre i strengen i utpreget grad reduseres. According to the present invention, a method for impregnating carbon fiber strands has been provided, by which method a very even resin distribution on the fiber strand is ensured and the proportion of damaged elementary fibers in the strand is significantly reduced.
Oppfinnelsen angår således en fremgangsmåte ved impregnering av carbonfiberstrenger og -bånd med stor lengde, hvor carbonfiberstrengene eller -båndene impregneres med harpiks med regulerbar skikttykkelse ved å ledes over impregneringsvalser, og fremgangsmåten er sær- The invention thus relates to a method for impregnating long-length carbon fiber strands and bands, where the carbon fiber strands or bands are impregnated with resin of adjustable layer thickness by passing them over impregnation rollers, and the method is particularly
preget ved at carbonfiberstrengen eller -båndet vikles av en svingbar'avspolingsanordning ved hjelp av liten strekkraft og derefter ved hjelp av valser impregneres på begge sider, efter impregneringen fores gjennom et vendesystem bestående av flere bremsevalser for dannelse av den onskede oppviklingsfor spenning og derefter oppvikles med den dannede forspenning. characterized by the fact that the carbon fiber string or tape is wound by a swiveling unwinding device with the help of a small tensile force and then impregnated on both sides with the help of rollers, after the impregnation is passed through a turning system consisting of several brake rollers to create the desired winding for tension and then wound with the formed bias.
Oppfinnelsen angår også en anordning for utforelse av den foreliggende fremgangsmåte, og anordningen er særpreget ved at en svingbar avspolingsanordning er kombinert med en harpiksimpregneringsanordning bestående av vendevalser, impregneringsvalser som dypper ned i harpiksimpregneringsbad og et vendesystem bestående av bremsevalser som er tilsluttet en oppviklingsspole. The invention also relates to a device for carrying out the present method, and the device is characterized by the fact that a pivotable unwinding device is combined with a resin impregnation device consisting of turning rollers, impregnating rollers that dip into a resin impregnation bath and a turning system consisting of brake rollers that are connected to a winding coil.
I henhold til den foreliggende oppfinnelse er det anordnet en spole som er montert med en vinkel som tilsvarer oppspolingsvinkelen for carbonfiberstrengen. Da videre spolen bremses under avviklings-forlopet således at det oppbygges en regulerbar, liten avtrekkskraft, som fortrinnsvis er mellom 50 -250p, sikres det at carbonfiberstrengen trekkes av fra spolen på en skånsom måte uten at den gnis mot lagene som ligger under og dermed beskadiges. According to the present invention, a coil is arranged which is mounted at an angle which corresponds to the winding angle of the carbon fiber strand. As the coil is further slowed during the unwinding process so that an adjustable, small pulling force is built up, which is preferably between 50 -250p, it is ensured that the carbon fiber strand is pulled off the coil in a gentle manner without it rubbing against the layers below and thus being damaged .
Denne vinkelinnstilling beholdes inntil strengen har kommet-frem til spolens ende. Når dette er tilfelle, blir ved hjelp av lyselektrisk styring spolen svingt så langt at tråden som nå loper tilbake på spolen i lengdeaksens retning, vidtgående kan lope gnidningsfritt av fra viklingen. Spolen svinges igjen når tråden har nådd den andre ende av spolen. This angle setting is retained until the string has reached the end of the spool. When this is the case, by means of light-electric control, the coil is swung so far that the thread which now runs back onto the coil in the direction of the longitudinal axis, can run freely from the winding without friction. The spool is swung again when the thread has reached the other end of the spool.
Den torre carbonfibertråd loper nå over valser til den forste impregneringsanordning. Denne er et termostatregulert kar med et innhold på 300 - 1000 cm<J> som inneholder impregneringsharpikser som ho_ldes på den gunstigste impregneringstemperatur. Loddrett på lengdeaksen inneholder dette kar en metallvalse 'som dypper ned 2-5 cm i harpiksbadet. Ved hjelp av vendevalser som er styrt av avspolingsanordningen, loper carbonfiberstrengen med et bestemt påtrykk over impregneringsvalsen som derved settes i rotasjon. På grunn av denne rotasjon transporterer valsen impregneringsharpiks fra badet på sin sylindriske mantelflate. The dry carbon fiber wire now runs over rollers to the first impregnation device. This is a thermostatically controlled vessel with a content of 300 - 1000 cm<J> which contains impregnation resins which are kept at the most favorable impregnation temperature. Vertical to the longitudinal axis, this vessel contains a metal roller which dips 2-5 cm into the resin bath. With the help of turning rollers that are controlled by the unwinding device, the carbon fiber strand runs with a certain pressure over the impregnation roller, which is thereby set in rotation. Due to this rotation, the roller transports impregnation resin from the bath on its cylindrical mantle surface.
Derved oppstår en harpiksfilm som carbonfiberstrengen loper igjennom. Tykkelsen av harpiksfilmen reguleres ved hjelp av avstrykningsplater mellom harpiksoverflaten i karet og carbonfiberstrengen som loper over impregneringsvalsen, ved hjelp av en regulerbar avstrykningsplate. This creates a resin film through which the carbon fiber strand runs. The thickness of the resin film is regulated by means of wiping plates between the resin surface in the tub and the carbon fiber strand that runs over the impregnation roller, by means of an adjustable wiping plate.
Den valgte harpiksfilmtykkelse er i forste rekke avhengig av viskositeten for impregneringsharpiksen ved den innstilte temperatur . The selected resin film thickness is primarily dependent on the viscosity of the impregnation resin at the set temperature.
Ved trykket av carbonfiberstrengen på impregneringsvalsen oppnås en. viss vifteformet bevegelse av carbonfiberstrengen som sikrer en bedre inntrengning av harpiks gjennom carbonfiberstrengen. By pressing the carbon fiber strand on the impregnation roller, a certain fan-shaped movement of the carbon fiber strand which ensures a better penetration of resin through the carbon fiber strand.
Det har vist seg at på grunn av carbonfiberoverflatens dårlige affinitet til EP-harpikser som med fordel benyttes som impregneringsharpiks, er en eneste impregnering ikke tilstrekkelig. It has been shown that due to the poor affinity of the carbon fiber surface to EP resins which are advantageously used as impregnation resin, a single impregnation is not sufficient.
Carbonfiberstrengen fores derfor over en annen.impregneringsanordning som er utformet i likhet med den ovenfor beskrevne,, Strengen ledes fordelaktig således at den overflate av strengen som ved den forste impregneringsvalse vender opp, ved den annen impregneringsvalse direkte fores over valsencThe carbon fiber strand is therefore fed over another impregnation device which is designed in the same way as the one described above.
Den impregnerte streng fores nå over flere vendevalser (fordelaktig minst 3) til trådoyet for viklemaskinen. Disse vendevalser kan bremses, hvorved det kan bygge seg opp en innstillbar maksimal avtrekkskraft hhv. trådspenning i den impregnerte carbon- The impregnated strand is now fed over several turning rollers (advantageously at least 3) to the wire feed for the winding machine. These turning rollers can be braked, whereby an adjustable maximum pull-off force can build up or thread tension in the impregnated carbon
fiberstreng. fiber strand.
En avtrekkskraft hhv. trådspenning på ^ 5 kp kan eksempelvis oppbygges for en streng .av 10.000 elementærtråder ved kombinasjonen av den ovenfor beskrevne avspolingsanordning, impregnering og avbremsede vendevalser med storst mulig skånsomhet for carbonfiberstrengene. Denne hoye avtrekkskraft hhv. trådspenning er ufravikelig nodvendig for å oppnå et ensartet oppbygget viklelegeme i hvilket en mest mulig homogen fordeling av fibre i harpiks sikres, dvs. hvor man oppnår en luftblærefri, vidtgående homogen impregnering av fibrene med harpiks, og omvendt for å oppnå optimale egenskapsver-dier. A pulling force or thread tension of ^ 5 kp can, for example, be built up for a string of 10,000 elementary threads by the combination of the unwinding device described above, impregnation and braked turning rollers with the greatest possible gentleness for the carbon fiber strands. This high extraction force or wire tension is invariably necessary to achieve a uniformly constructed winding body in which the most homogeneous distribution of fibers in resin is ensured, i.e. where an air bubble-free, far-reaching homogeneous impregnation of the fibers with resin is achieved, and vice versa to achieve optimal property values.
Kombinasjonen av svingbar avspolingsanordning forsynt med bremsemotor,samt en dobbeltimpregnering og de avbremsede vendevalser for oppbygging av den maksimalt oppnåelige avtrekkskraft, hhv. trådspenning, er gjenstand for den foreliggende oppfinnelse, fordi bare kombinasjonen av den beskrevne anordning leder til optimale resul-tater og sikrer den hbyest mulig utnyttingsgrad av fiberegenskapene i et viklingslaminat. The combination of a swiveling unwinding device equipped with a brake motor, as well as a double impregnation and the braked turning rollers for building up the maximum achievable extraction force, respectively. thread tension, is the subject of the present invention, because only the combination of the described device leads to optimal results and ensures the highest possible degree of utilization of the fiber properties in a winding laminate.
Ved kombinasjonen av avspolingsanordningen og en dobbeltsidig impregnering med doserbar harpiksfilm på impregneringsvalsene oppnås en impregnering av carbonfiberstrengen som oppviser folgende fordelaktige karakteristiske trekk: By combining the unwinding device and a double-sided impregnation with doseable resin film on the impregnation rollers, an impregnation of the carbon fiber strand is achieved which exhibits the following advantageous characteristics:
Hoy jevnhet av forholdet harpiks/fiber, High uniformity of the resin/fiber ratio,
praktisk talt fravær av luftblærer, practically absence of air bubbles,
hoy jevnhet av harpiksfordelingen i strengen, high uniformity of the resin distribution in the strand,
vidtgående reduksjon av andelen av skadede elementær- far-reaching reduction of the proportion of damaged elementary
fibre i strengen. fibers in the string.
På denne måte impregnerte carbonfiberstrenger cllor -bånd egner seg fortrinnsvis for fremstilling av viklelegemer etter fiberviklingsfremgangsmåten ("filament winding") eller for fremstilling av forhåndsimpregnerte carbonfiberstrenger eller carbonfiberbånd ("prepregs"). Impregnated carbon fiber strands Cllor tapes in this way are preferably suitable for the production of winding bodies according to the fiber winding method ("filament winding") or for the production of pre-impregnated carbon fiber strands or carbon fiber tapes ("prepregs").
En utfdrelsesform av anordningen i henhold til foreliggende oppfinnelse for impregnering av carbonfiberstrenger eller -bånd er skjematisk angitt i den vedfoyede tegning, hvorav på Fig. 1 er vist en samlet impregneringsanordning i henhold til den foreliggende oppfinnelse og på An embodiment of the device according to the present invention for impregnation of carbon fiber strands or bands is schematically indicated in the attached drawing, of which Fig. 1 shows an overall impregnation device according to the present invention and on
Fig» 2 en spolesvingeanordning. Fig» 2 a coil turning device.
En carbonfiberstreng 1 med stor lengde som i flere lag kryss-vis er oppviklet på en forsyningsspole 2 som er opplagret i en spolesvingeanordning (fig. 2), fores over et valsesystem som består av vendevalser, harpiksimpregneringsvalser og bremsevalser, og oppvikles på en viklekjerne under strekk. Bevegelsesretningen for fiberstrengen samt omdreiningsretningen for valsene er antydet med piler. A long carbon fiber strand 1 which is wound cross-wise in several layers on a supply coil 2 which is stored in a coil turning device (Fig. 2), is fed over a roller system consisting of turning rollers, resin impregnation rollers and brake rollers, and is wound on a winding core under stretch. The direction of movement of the fiber strand as well as the direction of rotation of the rollers are indicated by arrows.
Valsesystemet er anordnet på en monteringsplate 3 som står loddrett, hvorved aksene for alle valser står parallelt med hverandre og inntar en rett vinkel i forhold til platen. Strengen fores fra forsyningsspolen 2 over en forste vendevalse h som er anordnet umiddelbart for den forste harpiksimpregneringsvalse 5, og tilfores deretter til en noe lavere anordnet vendevalse 6 til en annen har-piksimpregner ingsvalse 7. Begge harpiksimpregneringsvalser 5 og 7 dypper likeledes ned i et harpiksbad 8, 8a som via et termostatregulert varmebad 9, 9a lar seg oppvarme. Skikttykkelsen av har-piksen som ved valsenes omdreining medfores fra harpiksbadet, inn-stilles ved hjelp av avstrykningsplater 10 og. 10a umiddelbart for valsene, hvorved spalten mellom impregneringsvalsene og avstryk-ningsplatene er et mål for skikttykkelsen og gjennomimpregneringen av carbonfiberstrengen. På grunn av vendevalsen 6 sikres det at carbonfiberstrengen som forst ved hjelp av valsen 5 impregneres på en side, etter beroring av den annen impregneringsvalse 7 også impregnere^ på den andre lopebane. Ved hjelp av carbonfiberstrengens trykk mot valsene sikres deres omdreining. Etter impregnering av strengen på den annen harpiksimpregneringsvalse 7 fores strengen over et vende-valsesystem montert i rekke og bestående av fem bremsevalser 11 gjennom hvilke strengen fores i en bolgelinjeform. Bremsevalsenes bremsekraft er innstillbar således at carbonfiberstrengen kan oppvikles på spolen 12 med et motstrekk på ca. 5 kp. The roller system is arranged on a mounting plate 3 which stands vertically, whereby the axes of all rollers are parallel to each other and occupy a right angle in relation to the plate. The string is fed from the supply coil 2 over a first reversing roller h which is arranged immediately before the first resin impregnation roller 5, and is then fed to a slightly lower arranged reversing roller 6 to another resin impregnating roller 7. Both resin impregnating rollers 5 and 7 likewise dip into a resin bath 8, 8a which can be heated via a thermostatically controlled heating bath 9, 9a. The layer thickness of the resin pix, which is carried along from the resin bath during the revolution of the rollers, is adjusted by means of wiping plates 10 and. 10a immediately for the rollers, whereby the gap between the impregnation rollers and the wiping plates is a measure of the layer thickness and the through impregnation of the carbon fiber strand. Due to the turning roller 6, it is ensured that the carbon fiber strand which is first impregnated on one side by means of the roller 5, after touching the second impregnation roller 7, is also impregnated on the other raceway. With the help of the carbon fiber string's pressure against the rollers, their rotation is ensured. After impregnation of the strand on the second resin impregnation roller 7, the strand is fed over a turning roller system mounted in a row and consisting of five brake rollers 11 through which the strand is fed in a wavy line shape. The braking force of the brake rollers can be adjusted so that the carbon fiber string can be wound on the spool 12 with a counter tension of approx. 5 kp.
På Fig0 2 er vist en utforelsesform av den svingbare avspolingsanordning. På en tverrstotte 12a for rammen 13 er i området for f iber str engutlopet rundt svingeaksen 1*+ en kryssviklet forsyningsspole 2 svingbart lagret på platen 15. Forsyningsspolen 2 står via et remdrev i forbindelse med en reguleringsmotor 16 likeledes anordnet på platen 15, og dreiemomentet for motoren er inn-stillbart. Platen 15 står via en hevarm 17 i forbindelse med en eksenterskive 18 som settes i rotasjon ved hjelp av en drivmotor 19, hvorved eksenterskiven dreies en vinkel på l80° når en svingning av for syningsspolen er nodvendig etter avvikling av et lag av den kryssoppviklede carbonfiberstreng, nærmere bestemt med den samme vinkel som fiberstrengen omslutter forsyningsspolens omkrets med. Svingningen av forsyningsspolen 2 styres lyselektrisk ved hjelp av en vendebryter 20, 20a forsynt med en lyskontakt. Fig. 2 shows an embodiment of the swiveling unwinding device. On a transverse support 12a for the frame 13, in the area of the fiber strand wound around the pivot axis 1*+, a cross-wound supply coil 2 is pivotally mounted on the plate 15. The supply coil 2 is via a belt drive in connection with a regulating motor 16 also arranged on the plate 15, and the torque because the motor is adjustable. The plate 15 is via a lifting arm 17 in connection with an eccentric disc 18 which is set in rotation by means of a drive motor 19, whereby the eccentric disc is turned through an angle of 180° when a swing of the sewing coil is necessary after unwinding a layer of the cross-wound carbon fiber strand, more specifically with the same angle with which the fiber strand encloses the circumference of the supply coil. The oscillation of the supply coil 2 is controlled photoelectrically by means of a reversing switch 20, 20a provided with a light contact.
Claims (5)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2101756A DE2101756C3 (en) | 1971-01-15 | 1971-01-15 | Process for the impregnation of carbon fibers and device for this |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO130859B true NO130859B (en) | 1974-11-18 |
| NO130859C NO130859C (en) | 1975-02-26 |
Family
ID=5795973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO4956/71A NO130859C (en) | 1971-01-15 | 1971-12-30 |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US3908042A (en) |
| JP (1) | JPS5545367B1 (en) |
| AT (1) | AT328724B (en) |
| BE (1) | BE778098A (en) |
| CH (1) | CH537216A (en) |
| DE (1) | DE2101756C3 (en) |
| DK (1) | DK131276B (en) |
| FI (1) | FI51002C (en) |
| FR (1) | FR2122178A5 (en) |
| GB (1) | GB1379484A (en) |
| IT (1) | IT944602B (en) |
| NL (1) | NL168575C (en) |
| NO (1) | NO130859C (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4019940A (en) * | 1974-01-18 | 1977-04-26 | Wall Industries, Inc. | Method of manufacturing parallel yarn rope |
| DE2507675C3 (en) * | 1975-02-22 | 1981-09-17 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München | Process for the impregnation of carbon fiber strands and tapes |
| US4211818A (en) * | 1977-11-30 | 1980-07-08 | Ppg Industries, Inc. | Composite strands of resin, carbon and glass and product formed from said strands |
| DE2951399A1 (en) * | 1979-12-20 | 1981-07-02 | VEB Sportgeräte, DDR 6080 Schmalkalden | High duty fibre reinforced plastic fibres - are vibrated, impregnated, conveyed, doctored, heated and cross-fed to laminating processes |
| DE3313991A1 (en) * | 1983-04-18 | 1984-10-18 | Fleißner GmbH & Co, Maschinenfabrik, 6073 Egelsbach | DEVICE FOR AVIVATING CONTINUOUS GOODS WITH A PATCH DEVICE |
| GB8402190D0 (en) * | 1984-01-27 | 1984-02-29 | Wiggins Teape Group Ltd | Coating paper |
| US5037284A (en) * | 1986-12-17 | 1991-08-06 | Amoco Corporation | Hot-melt prepreg tow apparatus |
| US4804509A (en) * | 1986-12-17 | 1989-02-14 | Amoco Corporation | Hot-melt prepreg tow process |
| ES2056567T5 (en) * | 1990-09-17 | 2003-09-01 | Resolution Res Nederland Bv | PROCEDURE AND APPARATUS FOR THE IMPREGNATION WITH RESIN OF A FIBROSO SUBSTRATE. |
| US5137781A (en) * | 1991-03-22 | 1992-08-11 | E. I. Du Pont De Nemours And Company | Protected brittle fiber yarns |
| DE4209997A1 (en) * | 1992-03-27 | 1993-09-30 | Dornier Gmbh | Impregnation appts. - has two vats and rollers to ensure complete saturation of fibrous material |
| US6248443B1 (en) | 1994-03-28 | 2001-06-19 | Hitco Carbon Composites, Inc. | Process for the preparation of flexible carbon yarn and carbon products therefrom |
| DE102005008705B3 (en) * | 2005-02-25 | 2006-09-21 | Karl Mayer Malimo Textilmaschinenfabrik Gmbh | Apparatus for feeding slivers to a knitting machine |
| CN104296669B (en) * | 2014-10-23 | 2017-01-25 | 兴乐电缆有限公司 | Anti-slip anti-shaking constant pressure type cable meter counting device |
| CN104897100A (en) * | 2015-07-07 | 2015-09-09 | 姜华 | Portable wire rope length measurement device |
| DE102015120292B3 (en) * | 2015-11-24 | 2017-04-20 | Lindauer Dornier Gesellschaft Mit Beschränkter Haftung | Controlled unwinding device |
| DE102016219289A1 (en) | 2016-10-05 | 2018-04-05 | Bayerische Motoren Werke Aktiengesellschaft | Roving impregnation method for wet winding technique |
| KR101916830B1 (en) * | 2016-12-08 | 2018-11-09 | 주식회사 이지컴퍼지트 | Manufacturing apparatus for tow prepreg and method thereof |
| EP3599069B1 (en) | 2018-07-23 | 2023-04-12 | Crompton Technology Group Limited | Fibre coating apparatus |
| KR102177348B1 (en) * | 2019-07-18 | 2020-11-11 | 순천향대학교 산학협력단 | Manufacture method for long fiber composite |
| CN111844521B (en) * | 2020-06-19 | 2022-07-08 | 哈尔滨工业大学 | Melt impregnation device and preparation method of continuous fiber reinforced thermoplastic prepreg tape |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH134337A (en) * | 1928-10-16 | 1929-07-31 | Schweiter Ag Maschf | Oil device for textile threads. |
| US2383964A (en) * | 1941-04-15 | 1945-09-04 | Interchemical Company | Coating method and apparatus |
| DE748711C (en) * | 1942-06-22 | 1953-02-23 | Alfred Hettwer | Method and device for dry sizing of running sheets of thread |
| US2381398A (en) * | 1944-05-04 | 1945-08-07 | Firestone Tire & Rubber Co | Apparatus for processing cord |
| US2444064A (en) * | 1944-05-05 | 1948-06-29 | Nasa | Method of treating tire cord |
| US2673546A (en) * | 1949-01-29 | 1954-03-30 | Dan River Mills Inc | Apparatus for treating impregnated yarn |
| DE848323C (en) * | 1949-12-06 | 1952-09-04 | Reiners Walter Dr Ing | Tree machine |
| US2844488A (en) * | 1955-02-02 | 1958-07-22 | Goodyear Tire & Rubber | Process for treating nylon cord fabric |
| US2992124A (en) * | 1956-05-10 | 1961-07-11 | Port Oils Inc X | Resinous composition and method |
| US3115312A (en) * | 1958-03-03 | 1963-12-24 | Johns Manville | Method for packaging stranded material |
| GB1036479A (en) * | 1963-09-20 | 1966-07-20 | Leesona Holt Ltd | Improvements in or relating to sizing machines |
| US3307962A (en) * | 1964-12-16 | 1967-03-07 | Du Pont | Process for treating nylon cord with an adhesive latex |
| FR1566785A (en) * | 1968-03-29 | 1969-05-09 | ||
| US3602191A (en) * | 1969-07-17 | 1971-08-31 | Westinghouse Electric Corp | Web guiding apparatus |
| US3720536A (en) * | 1970-06-18 | 1973-03-13 | United Aircraft Corp | Treatment of carbon fibers |
-
1971
- 1971-01-15 DE DE2101756A patent/DE2101756C3/en not_active Expired
- 1971-12-30 IT IT33167/71A patent/IT944602B/en active
- 1971-12-30 NO NO4956/71A patent/NO130859C/no unknown
-
1972
- 1972-01-04 AT AT4672*#A patent/AT328724B/en not_active IP Right Cessation
- 1972-01-06 NL NLAANVRAGE7200155,A patent/NL168575C/en not_active IP Right Cessation
- 1972-01-11 FR FR7200765A patent/FR2122178A5/fr not_active Expired
- 1972-01-12 FI FI720068A patent/FI51002C/en active
- 1972-01-13 CH CH45172A patent/CH537216A/en not_active IP Right Cessation
- 1972-01-14 BE BE778098A patent/BE778098A/en unknown
- 1972-01-14 JP JP654872A patent/JPS5545367B1/ja active Pending
- 1972-01-14 DK DK19372AA patent/DK131276B/en unknown
- 1972-01-14 GB GB194672A patent/GB1379484A/en not_active Expired
- 1972-01-17 US US218115A patent/US3908042A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE2101756C3 (en) | 1981-05-27 |
| BE778098A (en) | 1972-05-02 |
| FR2122178A5 (en) | 1972-08-25 |
| DK131276C (en) | 1975-11-10 |
| NL168575C (en) | 1982-04-16 |
| NO130859C (en) | 1975-02-26 |
| CH537216A (en) | 1973-05-31 |
| FI51002B (en) | 1976-05-31 |
| JPS5545367B1 (en) | 1980-11-18 |
| NL7200155A (en) | 1972-07-18 |
| DK131276B (en) | 1975-06-23 |
| ATA4672A (en) | 1975-06-15 |
| DE2101756B2 (en) | 1975-09-11 |
| GB1379484A (en) | 1975-01-02 |
| AT328724B (en) | 1976-04-12 |
| FI51002C (en) | 1976-09-10 |
| IT944602B (en) | 1973-04-20 |
| US3908042A (en) | 1975-09-23 |
| NL168575B (en) | 1981-11-16 |
| DE2101756A1 (en) | 1972-07-27 |
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