DK152898B - Apparatus for the manufacture of corrugated profiled sheets of thermoplastic material - Google Patents

Apparatus for the manufacture of corrugated profiled sheets of thermoplastic material Download PDF

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Publication number
DK152898B
DK152898B DK229372AA DK229372A DK152898B DK 152898 B DK152898 B DK 152898B DK 229372A A DK229372A A DK 229372AA DK 229372 A DK229372 A DK 229372A DK 152898 B DK152898 B DK 152898B
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Prior art keywords
strips
shaping
cal
exceeds
plate
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DK229372AA
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Danish (da)
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DK152898C (en
Inventor
Jean Francois Bequet
Paul Dubois
Roger Ven Asbroeck
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Solvay
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31FMECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20Corrugating; Corrugating combined with laminating to other layers
    • B31F1/22Making webs in which the channel of each corrugation is longitudinal with the web feed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/22Corrugating
    • B29C53/24Corrugating of plates or sheets
    • B29C53/26Corrugating of plates or sheets parallel with direction of feed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/22Corrugating
    • B29C53/24Corrugating of plates or sheets
    • B29C53/26Corrugating of plates or sheets parallel with direction of feed
    • B29C53/265Corrugating of plates or sheets parallel with direction of feed using rolls or endless bands

Description

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iin

Opfindelsen omhandler et apparat til fremstilling af bølgeplader især til anvendelse inden for byggeindustrien af den i krav l's indledning angivne art.The invention relates to an apparatus for making corrugated sheets especially for use in the construction industry of the kind specified in the preamble of claim 1.

Fra beskrivelsen til USA-patent nr. 3 570 066 kendes et apparat af denne art, hvor formgivningsbåndene består af ledkæder. Et sådant apparat er egnet til formgivning af plader af Eternit® eller et andet byggemateriale, der let kan formgives i kold tilstand, men har vist sig uegnet til en jævn profilering af et termoplastisk plademateriale, eksempelvis polyvinylchlorid, hvis temperatur under formgivningen synker fra ca. 90 °C -135 °C til under glasfaseovergangstemperaturen, selv ved en tilsvarende kredsløbstermisk forvarmning af kædeleddene før indgangen og afkøling efter formgivningen af pladen.From the specification of US Patent No. 3,570,066, an apparatus of this kind is known in which the design bands consist of link chains. Such an apparatus is suitable for forming sheets of Eternit® or other building material which can be easily molded in a cold state, but has proved unsuitable for smooth profiling of a thermoplastic sheet material, for example polyvinyl chloride, whose temperature during molding drops from approx. 90 ° C to -135 ° C below the glass phase transition temperature, even at a corresponding circuit thermal preheating of the chain links prior to entry and cooling after forming the plate.

Opfindelsen har til formål at tilvejebringe et apparat, som muliggør en kontinuerlig og økonomisk fremstilling af bølgeprofilerede plader af et termoplastisk materiale med en god kvalitet, og hvis profil kan være enten mangekantet eller krumt.The invention has for its object to provide an apparatus which enables the continuous and economical production of corrugated sheets of good quality thermoplastic material, the profile of which may be either multilayered or curved.

Dette opnås ved hjælp af et apparat, som er ejendommeligt ved den i den kendetegnende del af krav 1 angivne nedsatte var-meledningsevne af formgivningsbåndene, hvilket under drift har vist sig at medføre en væsentlig besparelse af kalorieforbruget .This is achieved by means of an apparatus which is peculiar to the thermal conductivity of the shaping strips indicated in the characterizing part of claim 1, which in operation has been found to significantly save the calorie consumption.

Under bølgeprofileringen af pladerne underkastes formgivnings-båndene kompressionspåvirkninger fra pladerne. Denne kompression afhænger især af spændingstilstanden af pladerne. Den kan være forholdsvis ringe, når det drejer sig om tynde plader, som ikke er underkastet nogen form for forudgående dobbeltorienterende behandling, og kan være større, når der er tale om at bearbejde plader af større tykkelse, eller som er underkastet en forudgående dobbeltorienterende behandling med henblik på fremstilling af bølgeplader med forbedrede mekaniske egenskaber. Det er derfor vigtigt, at denne kompression ikke medfører en forDuring the wave profiling of the plates, the shaping bands are subjected to compression effects from the plates. This compression depends in particular on the stress state of the plates. It may be relatively small in the case of thin sheets which are not subjected to any prior double orientation, and may be larger in the case of larger thickness sheets or subject to prior double orientation. for the manufacture of corrugated sheets with improved mechanical properties. It is therefore important that this compression does not result in a feed

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2 kraftig deformation af formgivningsbåndenes tværsnitsprofil, hvilket ville ytre sig ved en ændring af det opnåede bølgeprofil. Ifølge opfindelsen har det vist sig fordelagtigt at vælge materialet for formgivningsbåndene med den i krav 2 angivne hårdhed.2, a strong deformation of the cross-sectional profile of the shaping bands, which would manifest itself by a change in the obtained wave profile. According to the invention, it has been found advantageous to select the material for the forming strips with the hardness specified in claim 2.

Da formgivningsbåndene er udformet som endeløse bånd og under drift skal antage en retliniet form under gennemgangen igennem afkølingszonen i apparatet, underkastes båndene periodiske bøjningspåvirkninger. De periodiske bøjninger og i mindre stærk grad de kompressionskræfter, som båndene underkastes, kan medføre dels utilladelige permanente forlængelser af båndene, dels en flydning af materialet i tidens løb. De successivt inducerede forlængelser i oversiden af formgivningsbåndene afhænger især af tykkelsen af båndene og af deres krumningsradius. Imidlertid ønsker man ikke en overdrevet nedsættelse af tykkelsen af formgivningsbåndene eller at give dem en for stor krumnings-radius, da apparatet i så fald vil kræve for meget plads. Resultatet er, at ydersiden af formgivningsbåndene under apparatets drift underkastes forskellige forlængelser varierende fra 0,3 til 10¾, hvilke forlængelser båndene skal kunne underkastes periodisk uden at opvise træthedsbrud eller permanent deformation. Materialet for de formgivende bånd bør derfor hensigtsmæssigt vælges som angivet i krav 3.Since the forming bands are designed as endless bands and during operation must assume a rectilinear shape during the passage through the cooling zone of the apparatus, the bands are subjected to periodic bending stresses. The periodic bends and, to a lesser extent, the compressive forces which the tapes are subjected to, may cause partly unacceptable permanent extensions of the tapes and partly the flow of the material over time. The successively induced extensions in the upper surface of the shaping bands depend in particular on the thickness of the bands and their radius of curvature. However, one does not want an excessive reduction of the thickness of the forming strips or to give them an excessive radius of curvature, as the apparatus will then require too much space. As a result, during the operation of the apparatus, the exterior of the forming bands is subjected to various extensions varying from 0.3 to 10¾, which extensions must be able to be subjected periodically without exhibiting fatigue or permanent deformation. Therefore, the material for the forming strips should be suitably selected as set forth in claim 3.

Ifølge en foretrukken udførelsesform kan understøtningerne for formgivningsbåndene udformes som angivet i krav 4. I dette tilfælde består bølgeprofileringsapparatet af to profileringsplat-fprme, imellem hvilke den plade, der skal bølgeprofileres, passerer, idet dens rande holdes oppe ved hjælp af eksempelvis klemmer, som fører pladen tværs igennem apparatet.According to a preferred embodiment, the supports for the shaping strips can be designed as claimed in claim 4. In this case, the wave profiling apparatus consists of two profiling platform between which the plate to be profiled passes, its edges being held up by, for example, clamps leading plate across the appliance.

Opfindelsen forklares nærmere nedenfor i forbindelse med tegningen, hvor: fig. 1 viser et skematisk længdesnit igennem et bølgeprofile-The invention is further explained below in connection with the drawing, in which: FIG. 1 shows a schematic longitudinal section through a wave profile.

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3 ringsapparat ifølge opfindelsen, fig. 2 et delsnit igennem apparatet med formgivningselementer, der er afpasset til fremstilling af et sinusformet bølgeprofil, og fig. 3 et delsnit igennem et lignende apparat med formgivnings-elementer, som er beregnet til fremstilling af bølgeplader med mangekantprofil.3 ring apparatus according to the invention, fig. 2 is a partial section through the apparatus with shaping elements adapted to produce a sinusoidal wave profile; and FIG. 3 is a partial section through a similar apparatus with shaping elements intended for the manufacture of multi-profile corrugated sheets.

Figurerne viser kun de nødvendige organer til forståelse af opfindelsen, og på fig. 1 er pressepladerne vist i adskilt stand, medens de under drift nærmes hinanden således, at de formgivende elementer overlapper hinanden indbyrdes.The figures show only the necessary means for understanding the invention, and in fig. 1, the press plates are shown in separate condition while in operation they are approached so that the shaping elements overlap.

Som vist på figurerne består bølgeprofileringsapparatet ifølge opfindelsen af et ikke vist stel, på hvilket der er monteret to over hinanden liggende presseplader 1 og 2, som kan nærmes til eller fjernes fra hinanden. Hver plade er forsynet med endeløse kæder 3, som er regelmæssigt fordelt og nøje anbragt efter det bølgeprofil,der skal fremstilles. De endeløse kæder 3 drives ved hjælp af tandhjulsdrev 4 og forskydes langs styreskinner 5. De endeløse kæder 3 understøtter en rækkefølge af larvefødder 6, der er profileret således, at de kan optage formgivningselementer bestående af endeløse bånd 7 med et passende tværsnit.As shown in the figures, the wave profiling apparatus according to the invention consists of a frame (not shown) on which are mounted two adjacent pressing plates 1 and 2, which can be approached or removed from each other. Each plate is provided with endless chains 3, which are regularly distributed and carefully arranged according to the wave profile to be manufactured. The endless chains 3 are driven by sprocket 4 and displaced along guide rails 5. The endless chains 3 support a sequence of caterpillar feet 6 which are profiled so that they can accommodate shaping elements consisting of endless bands 7 of a suitable cross-section.

Profilet af styreskinnerne 5 er således, at larvebåndene 6 og dermed de formgivende elementer 7 under deres forskydningsbevægelse overlapper hinanden progressivt og derefter følger en retliniet bane.The profile of the guide rails 5 is such that the caterpillar bands 6 and thus the shaping elements 7 progressively overlap each other during their shear movement and then follow a straight line.

Sidevæggene 8 af larvebåndene 6 bør hensigtsmæssigt profileres således, at de holder de formgivende bånd 7 på plads i formgiv-ningsområdet. Returbaneforløbet af båndene 7 afviger fra retur-banen for larvebåndene 6, og i denne mellemrumsdannende stil- 4The sidewalls 8 of the caterpillar bands 6 should be suitably profiled to hold the shaping bands 7 in place in the shaping area. The return path of the belts 7 differs from the return path of the larval belts 6, and in this gap-forming style 4

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ling understøttes de formgivende bånd 7 af organer, såsom løbe-ruller 9, der er stationært anbragt på maskinstellet.For example, the shaping strips 7 are supported by means, such as running rollers 9, which are stationary mounted on the machine frame.

Forskydningshastigheden af kæderne 3 vælges fortrinsvis således, at den i det væsentlige er lig med gennemgangshastigheden af den formstofplade, der skal bearbejdes.The shear rate of the chains 3 is preferably chosen such that it is substantially equal to the rate of passage of the plastic sheet to be machined.

Apparatet ifølge opfindelsen er desuden kompletteret med køleorganer 10 for de behandlede plader, anbragt langs den af styreskinnerne 5 udvirkede retliniede bane og fastgjort til presse-pladerne 1 og 2 imellem styreskinnerne.In addition, the apparatus according to the invention is supplemented with cooling means 10 for the treated plates, arranged along the rectilinear path formed by the guide rails 5 and attached to the pressing plates 1 and 2 between the guide rails.

Nedenfor gengives en række praktiske udførelsesformer for et apparat ifølge opfindelsen.Below are a number of practical embodiments of an apparatus according to the invention.

EKSEMPEL 1EXAMPLE 1

Der tilvejebringes et bølgeprofileringsapparat ifølge fig. 1 og 2 til fremstilling af en bølgeplade, der omfatter seks sinusformede bølger over en breddestrækning af 1,01 m og med en højde på 57 mm.A wave profiling apparatus according to FIG. 1 and 2 for the manufacture of a corrugated sheet comprising six sinusoidal waves over a width of 1.01 m and having a height of 57 mm.

Den øverste presseplade 1 er forsynet med syv formdannende bånd 7 og den nederste platform 2 med seks formdannende bånd 7, hvilke endeløse bånd 7 har et passende profil og hvert især en udfoldet længde på 6,5 m, en maksimal tykkelse på 30 mm og en maksimal bredde på 70 mm. Båndene 7 understøttes og drives af larvebånd 6, der er monteret på kæderne 3, som drives af en motor og styres af skinnerne 5, hvis retliniede formgivnings-og afkølingsparti har en længde på 1,5 m. Båndene 7 fremstilles af en siliconekautsjuk med en hårdhedsgrad på 48 Shore A, en afslibningsmodstand på 455 mm^ efter DIN-norm 53516 og en var-meledningsevne på 60 x 10-^ cal/cm.s.°C.The upper press plate 1 is provided with seven molding strips 7 and the lower platform 2 with six molding strips 7, which have endless strips 7 having a suitable profile and each having a length of 6.5 m, a maximum thickness of 30 mm and a maximum width of 70 mm. The belts 7 are supported and driven by caterpillar belts 6 mounted on the chains 3 driven by a motor and controlled by the rails 5, whose rectilinear shaping and cooling portion has a length of 1.5 m. The belts 7 are made of a silicone rubber with a 48 Shore A hardness, a abrasion resistance of 455 mm ^ according to DIN standard 53516 and a thermal conductivity of 60 x 10- ^ cal / cm.s. ° C.

En plade af methylpolymethacrylat med en tykkelse på 0,45 mm, understøttet ved randene og opvarmet til 180 °C, indføres i apparatet og afkøles i form. Egenvægten af den øverste presse- 5A plate of methyl polymethacrylate having a thickness of 0.45 mm, supported at the edges and heated to 180 ° C, is introduced into the apparatus and cooled in shape. The weight of the top press 5

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plade 1, 3,5 t, er tilstrækkelig til at deformere pladen, uden at pressepladerne 1 og 2 fjernes indbyrdes. Den afkølede plade forlader apparatet med det ønskede bølgeprofil og har et upåklageligt udseende.plate 1, 3.5 t is sufficient to deform the plate without the pressing plates 1 and 2 being mutually removed. The cooled plate leaves the apparatus with the desired wave profile and has an impeccable appearance.

EKSEMPEL 2 I et apparat af samme type som i eksempel 1 er de formgivende bånd 7 fremstillet af en polyurethankautsjuk med følgende egenskaber:EXAMPLE 2 In an apparatus of the same type as in Example 1, the forming strips 7 are made of a polyurethane rubber having the following characteristics:

Hårdhed: 65 Shore AHardness: 65 Shore A

l/armeledningsevne: 71 x 10“^ cal/cm.s.°Cl / arm conductivity: 71 x 10 10 ^ cal / cm.. ° C

Afslibningsmodstand: 43 min ifølge DIN-norm 53516 I apparatet indføres der en plade af polyvinylchlorid med en tykkelse på 0,4 mm, som lige er underkastet en dobbeltorien-terende forbehandling ved en langsgående strækning på 50¾ og en tværgående strækning på 20¾ ved 110 °C, hvilken plade fastholdes ved randene.Abrasion resistance: 43 minutes according to DIN standard 53516 The apparatus introduces a plate of polyvinyl chloride with a thickness of 0.4 mm, which is just subjected to a double-orientation pretreatment at a longitudinal stretch of 50¾ and a transverse stretch of 20¾ at 110 °. C, which plate is retained at the edges.

En kraft på 18 t påtrykkes den øverste presseplade 1 for at nærme denne til den nederste presseplade 2. Den afkølede plade, der forlader apparatet, frembyder det ønskede profil. Det konstateres under drift, at sammentrykningen af båndene 7 er mindre end 0,1 mm.A force of 18 t is applied to the upper pressing plate 1 to approach it to the lower pressing plate 2. The cooled plate leaving the apparatus presents the desired profile. It is found during operation that the compression of the belts 7 is less than 0.1 mm.

EKSEMPEL 3EXAMPLE 3

Der tilvejebringes et bølgeprofileringsapparat ifølge fig. 1 og 3 til fremstilling af en bølgeplade med 34 mangekantede bølger over en bredde af 1,09 m og med en højde på 10 mm.A wave profiling apparatus according to FIG. 1 and 3 for the manufacture of a corrugated board with 34 polygonal waves over a width of 1.09 m and a height of 10 mm.

Den øverste presseplade 1 er forsynet med 34 formgivende bånd 7 og den nederste presseplade 2 med 35 bånd 7, hvilke endeløse bånd 7 har et passende profil og hvert 6The upper press plate 1 is provided with 34 shaping strips 7 and the lower press plate 2 is provided with 35 strips 7, which endless strips 7 have a suitable profile and each 6

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især en udfoldet længde på 9 m, en tykkelse på 8 mm og en maksimal bredde på 11 mm. Båndene 7 understøttes og drives af larvebånd 6, der er monteret på kæderne 3, som drives af en motor og styres af skinnerne 5, hvis retliniede formgivnings-og afkølingsparti har en længde på 1,5 m.in particular, an unfolded length of 9 m, a thickness of 8 mm and a maximum width of 11 mm. The belts 7 are supported and driven by caterpillar belts 6 mounted on the chains 3 driven by a motor and controlled by the rails 5, whose rectilinear shaping and cooling portion is 1.5 m in length.

Båndene 7 fremstilles ved skiftevis krydsfinering af tre plader af asketræ og tre plader af hvidbøg, stukket ind imellem hinanden .The ribbons 7 are manufactured by alternating plywood of three sheets of ash wood and three sheets of white beech interposed.

Ved en fugtighedsgrad på 15¾ frembyder disse træsorter følgende egenskaber:At a humidity of 15¾, these types of wood offer the following properties:

Ask;Ash;

Varmeledningsevne: 37 x 10 ^ cal/cm.s.°CThermal conductivity: 37 x 10 6 cal / cm.s. ° C

Brudforlængelse: 0,87¾Fracture elongation: 0.87¾

Hvidbøq:Hvidbøq:

Varmeledningsevne: 42 x 10-^ cal/cm.s.°CThermal conductivity: 42 x 10- ^ cal / cm.s. ° C

Brudforlængelse: 0,83¾ I apparatet indføres der en plade af polyvinylchlorid med en tykkelse på 0,10 mm ved en temperatur på 105 °C, strakt i længderetningen med 50¾ og i tværretningen med 20?o, hvilken plade nøje fastholdes ved randene.Elongation at break: 0.83¾ The apparatus introduces a sheet of polyvinyl chloride with a thickness of 0.10 mm at a temperature of 105 ° C, stretched longitudinally by 50 ° and in the transverse direction by 20 °, which plate is held firmly at the edges.

En kraft på 30 t er nødvendig til at holde pressepladerne 1 og 2 på plads under drift. Den fremstillede bølgeplade har et meget smukt udseende.A force of 30 t is required to hold the press plates 1 and 2 in place during operation. The manufactured corrugated board has a very beautiful appearance.

EKSEMPEL 4EXAMPLE 4

Der fremstilles en bølgeplade af polyvinylchlorid som i eksempel 3 ved hjælp af samme apparat, bortset fra, at de formdannende bånd 7 fremstilles af en polyacetal med en hårdhedsgrad på 73 Shore D, en varmeledningsevne på 55 x 10" cal/cm.s.°C og 7A polyvinyl chloride corrugated sheet is prepared as in Example 3 by the same apparatus, except that the molding strips 7 are made of a polyacetal having a hardness of 73 Shore D, a thermal conductivity of 55 x 10 "cal / cm.s. ° C and 7

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en elastisk forlængelse på 2,4¾.an elastic extension of 2.4¾.

En kraft på 27 t er nødvendig til at nærme pressepladerne 1 og 2 til hinanden og forme det ønskede mangekantede bølgeprofil.A force of 27 t is required to approximate the press plates 1 and 2 and to form the desired polygonal wave profile.

EKSEMPEL 5EXAMPLE 5

Der tilvejebringes et bølgeprofileringsapparat ifølge fig. 1 og 2 til fremstilling af en bølgeplade med 34 sinusbølger over en bredde af 1,09 m og med en højde på 11 mm.A wave profiling apparatus according to FIG. 1 and 2 for the preparation of a corrugated plate with 34 sine waves over a width of 1.09 m and a height of 11 mm.

Den øverste presseplade 1 er forsynet med 34 formgivende bånd 7 og den nederste presseplade 2 med 35 formgivende bånd 7, hvilke bånd 7 hvert især har en udfoldet længde på 11 m og er dannet af et antal rundstokke af træ med en diameter på 11 mm, som er klæbet i forlængelse af hinanden med skrå endeflader over en længde på 150 mm. Båndene 7 understøttes og drives af larvebånd 6, som er fastgjort på drivkæderne 3, der styres af skinnerne 5, hvis retliniede formgivnings-og afkølingsparti har en længde på 1,5 m.The upper pressing plate 1 is provided with 34 forming strips 7 and the lower pressing plate 2 with 35 forming strips 7, each of which has an elongated length of 11 m and is formed by a number of wooden round logs with a diameter of 11 mm. which are adhered to each other by oblique end faces over a length of 150 mm. The belts 7 are supported and driven by caterpillar belts 6 which are attached to the drive chains 3 which are guided by the rails 5, whose rectilinear shaping and cooling portions are 1.5 m in length.

Der anvendes flere træsorter, såsom ask, hvidbøg og valnød, som kan anvendes i flæng og samtidigt. Ved en fugtighedsgrad på 15¾ har valnød en varmeledningsevne på 35 x 10-^ cal/cm.s.°c og en brudforlængelse på 1¾.Several types of wood are used, such as ash, white beech and walnut, which can be used interchangeably and simultaneously. At a humidity of 15¾, walnut has a thermal conductivity of 35 x 10- ^ cal / cm.s. ° c and a fracture elongation of 1¾.

I apparatet indføres der en plade af polyvinylchlorid med en tykkelse på 0,4 mm ved en temperatur på 110 °C, som er strakt 1 længderetningen med 50¾ og i tværretningen med 20¾ og fastholdt ved randene.Into the apparatus is introduced a polyvinyl chloride plate having a thickness of 0.4 mm at a temperature of 110 ° C which is stretched 1 longitudinally by 50¾ and in the transverse direction by 20¾ and held at the edges.

Et tryk på 24 t er nødvendigt til at nærme pressepladerne 1 og 2 til hinanden og frembringe den ønskede sinusbølgeform.A pressure of 24 hours is required to approximate the press plates 1 and 2 to produce the desired sine wave shape.

Claims (4)

1. Apparat til fremstilling af bølgeprofilerede plader af et termoplastisk materiale i plastisk tilstand, omfattende to sæt af endeløse, i hinanden progressivt indgribende profilerede formgivningsbånd (7), der forskydes sammen med pladeemnet og indtager en retliniet vandringsbane i de formgivne pladers afkølingszone, hvilke bånd understøttes og styres i det mindste langs deres partier i berøring med pladeemnet af understøtnings-organer (6), der er virksomme på de båndflader, som ikke berører pladeemnet, kendetegnet ved, at formgivningsbåndene (7) består af et sammenhængende tværbølgeprofileret materiale -2 med en varmeledningsevne på under 10 cal/cm.s.°C, fortrinsvis under 10-^ cal/cm.s.°C.An apparatus for producing corrugated sheets of a plastic state thermoplastic material, comprising two sets of endless, progressively engaged profiled molding strips (7) which are displaced together with the sheet metal and occupy a rectilinear walkway in the cooling zone of the molded sheets, which strips supported and guided at least along their portions in contact with the plate blank by support means (6) acting on the strip surfaces which do not touch the plate blank, characterized in that the forming strips (7) consist of a continuous cross-wave profiled material -2 with a thermal conductivity of less than 10 cal / cm.s. ° C, preferably below 10-3 cal / cm.s. ° C. 2. Apparat ifølge krav 1, kendetegnet ved, at hårdhedsgraden af formgivningsbåndene (7) overstiger 35 Shore A, fortrinsvis overstiger 45 Shore A.Apparatus according to claim 1, characterized in that the hardness of the forming strips (7) exceeds 35 Shore A, preferably exceeds 45 Shore A. 3. Apparat ifølge krav 1, kendetegnet ved, at den elastiske forlængelse af formgivningsbåndene (7) overstiger 0,3*.Apparatus according to claim 1, characterized in that the elastic extension of the shaping bands (7) exceeds 0.3 *. 4. Apparat ifølge krav 1-3, kendetegnet ved, at understøtningsorganerne (6) består af bevægelige larvebånd.Apparatus according to claims 1-3, characterized in that the support means (6) consist of movable caterpillars.
DK229372A 1971-05-10 1972-05-09 Apparatus for the manufacture of corrugated profiled sheets of thermoplastic material DK152898C (en)

Applications Claiming Priority (2)

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BE103210 1971-05-10
BE103210 1971-05-10

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DK152898B true DK152898B (en) 1988-05-30
DK152898C DK152898C (en) 1988-10-17

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DK229372A DK152898C (en) 1971-05-10 1972-05-09 Apparatus for the manufacture of corrugated profiled sheets of thermoplastic material

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JP (1) JPS5345818B1 (en)
AT (1) AT348753B (en)
AU (1) AU462475B2 (en)
BR (1) BR7202869D0 (en)
CA (1) CA974357A (en)
CH (1) CH560593A5 (en)
DE (1) DE2217313C2 (en)
DK (1) DK152898C (en)
ES (1) ES401540A1 (en)
FI (1) FI52946C (en)
FR (1) FR2137514A1 (en)
IT (1) IT951484B (en)
NL (1) NL175042C (en)
NO (1) NO133874C (en)
SE (1) SE386105B (en)
ZA (1) ZA722443B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3726345A1 (en) * 1987-08-07 1989-02-16 Grecon Greten Gmbh & Co Kg Process affording continuous embossing and texturing of laminate surfaces
DE4204041C2 (en) * 1992-02-12 1994-03-03 2 H Kunststoff Gmbh Method for producing a built-in element for heat exchanger, mass exchanger and / or bioreactor systems and device for carrying out the method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570066A (en) * 1968-06-19 1971-03-16 Mark Solomonovich Neifeld Plant for forming corrugated sheets from flat asbestos-cement blanks

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE743923A (en) * 1969-12-31 1970-06-30

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570066A (en) * 1968-06-19 1971-03-16 Mark Solomonovich Neifeld Plant for forming corrugated sheets from flat asbestos-cement blanks

Also Published As

Publication number Publication date
DE2217313C2 (en) 1982-12-16
NL7205815A (en) 1972-11-14
ES401540A1 (en) 1975-02-16
AU462475B2 (en) 1975-06-26
DK152898C (en) 1988-10-17
FR2137514A1 (en) 1972-12-29
CA974357A (en) 1975-09-16
FR2137514B1 (en) 1974-12-20
FI52946C (en) 1978-01-10
IT951484B (en) 1973-06-30
NL175042B (en) 1984-04-16
NO133874C (en) 1976-07-14
ATA328072A (en) 1978-07-15
FI52946B (en) 1977-09-30
CH560593A5 (en) 1975-04-15
ZA722443B (en) 1973-01-31
BR7202869D0 (en) 1973-08-23
NL175042C (en) 1984-09-17
NO133874B (en) 1976-04-05
SE386105B (en) 1976-08-02
DE2217313A1 (en) 1972-11-23
AT348753B (en) 1979-03-12
JPS5345818B1 (en) 1978-12-09
AU4155172A (en) 1973-11-01

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