NO155652B - PROCEDURE FOR CONTINUOUS PREPARATION OF A PLATE BY CONNECTION OF TWO OR MORE COATS OF EXPANDED THERMOPLASTIC RESIN. - Google Patents
PROCEDURE FOR CONTINUOUS PREPARATION OF A PLATE BY CONNECTION OF TWO OR MORE COATS OF EXPANDED THERMOPLASTIC RESIN. Download PDFInfo
- Publication number
- NO155652B NO155652B NO793328A NO793328A NO155652B NO 155652 B NO155652 B NO 155652B NO 793328 A NO793328 A NO 793328A NO 793328 A NO793328 A NO 793328A NO 155652 B NO155652 B NO 155652B
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- Norway
- Prior art keywords
- webs
- thermoplastic resin
- plate
- heated
- connection
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 12
- 229920005992 thermoplastic resin Polymers 0.000 title claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000010924 continuous production Methods 0.000 claims description 2
- 238000005187 foaming Methods 0.000 claims 1
- 230000004927 fusion Effects 0.000 claims 1
- 239000000047 product Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000012815 thermoplastic material Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004040 coloring Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000009996 mechanical pre-treatment Methods 0.000 description 1
- 239000007858 starting 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/03—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers with respect to the orientation of features
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- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/08—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles using several expanding or moulding steps
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/03—After-treatments in the joint area
- B29C66/034—Thermal after-treatments
- B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/727—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being porous, e.g. foam
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
- B29C66/83411—Roller, cylinder or drum types
- B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
-
- 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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/04—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/32—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed at least two layers being foamed and next to each other
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
- B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
- B29C66/72327—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
- B29C66/72328—Paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
-
- 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
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/0088—Expanding, swelling
-
- 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
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/02—Cellular or porous
- B32B2305/022—Foam
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/72—Density
-
- 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
- B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
- B32B2309/08—Dimensions, e.g. volume
- B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
- B32B2309/105—Thickness
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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
- B32B2607/00—Walls, panels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Sealing Material Composition (AREA)
- Adhesives Or Adhesive Processes (AREA)
Description
Den foreliggende oppfinnelse angår en fremgangsmåte for kontinuerlig fremstilling av en plate med homogen struktur av skummet termoplastisk harpiks ved at to eller flere kontinuerlige baner av den termoplastiske harpiks forenes under trykk og produktet oppkuttes til plater. The present invention relates to a method for the continuous production of a plate with a homogeneous structure of foamed thermoplastic resin by combining two or more continuous webs of the thermoplastic resin under pressure and cutting the product into plates.
Innenfor området behandling av termoplastiske harpikser er oppnåelsen av enkeltlags plater med fastsatt tykkelse vel kjent, idet prosessen er avhengig av den for-ventede bruk av det ferdige produkt. Imidlertid kan den mest vanlige fremgangsmåte som hittil er benyttet bare brukes til å oppnå produkter med en relativt høy tetthet. I praksis må derfor en slik fremgangsmåte gjennomføres ved relativt høye temperaturer som nødvendiggjør at de ekstruderte og ekspanderte plater må undergå lange perioder med kalibrering og avkjøling før de kan benyttes. Plater som er fremstilt på denne måte, krever også hensiktsmessig herding ved en kontrollert temperatur, noe som krever bruk av store kamre på grunn av materialets volum. Dette har en alvorlig negativ virkning både på fremstillingen og fremstillingskostnadene. Within the field of processing thermoplastic resins, the achievement of single-layer sheets of fixed thickness is well known, the process being dependent on the expected use of the finished product. However, the most common method used so far can only be used to obtain products with a relatively high density. In practice, such a method must therefore be carried out at relatively high temperatures, which necessitates that the extruded and expanded plates must undergo long periods of calibration and cooling before they can be used. Sheets produced in this way also require appropriate curing at a controlled temperature, which requires the use of large chambers due to the volume of the material. This has a serious negative effect on both production and production costs.
Den foreliggende oppfinnelse søker derfor å frem-skaffe en fremgangsmåte og en innretning som tillater pro-duksjon av plater med ekspandert termoplastisk materiale fra baner eller strimler som tidligere er ekstrudert og aldret. Dette oppnås med de i kravets karakteriserende del anførte trekk. The present invention therefore seeks to provide a method and a device which allows the production of plates with expanded thermoplastic material from webs or strips that have previously been extruded and aged. This is achieved with the features listed in the characterizing part of the claim.
Med oppfinnelsen oppnås ved relativt lave temperaturer, flerlags plater med en tetthet som er mindre enn de enkelte baners eller strimlers som benyttes som utgangs-materiale og som er mindre enn det som kan oppnås dersom en plate utformes av et enkelt lag av tilsvarende tykkelse. En slik fremgangsmåte gjør det unødvendig å aldre platene som er fremstilt på denne måte, slik at fremstillingskostnadene nedsettes og produksjonen økes. With the invention, at relatively low temperatures, multi-layer plates are obtained with a density that is less than that of the individual webs or strips used as starting material and which is less than what can be achieved if a plate is formed from a single layer of similar thickness. Such a method makes it unnecessary to age the plates produced in this way, so that production costs are reduced and production is increased.
Oppfinnelsen beskrives nærmere ved en utførelse som vist på tegningen, hvor fig. 1 skjematisk viser et sideriss av en innretning for gjennomføring av fremgangsmåten ifølge oppfinnelsen, fig. 2 viser en del av innret-ningen i tverrsnitt og fig. 3 viser et tverrsnitt gjennom The invention is described in more detail by an embodiment as shown in the drawing, where fig. 1 schematically shows a side view of a device for carrying out the method according to the invention, fig. 2 shows part of the arrangement in cross-section and fig. 3 shows a cross section through
den resulterende sammensatte plate. the resulting composite plate.
Tegningene viser en ovn som er brukt for samtidig oppvarming av to eller flere baner 2 av ekspandert termoplastisk materiale som skal forbindes med hverandre, en kalibrerings- og kjølestasjon 3 for banene når de er forbundet med hverandre og en stasjon 4 som benyttes for etterfølgende trykking og oppkutting av produktet til plater. The drawings show an oven used for simultaneous heating of two or more webs 2 of expanded thermoplastic material to be joined together, a calibration and cooling station 3 for the webs when they are joined together and a station 4 used for subsequent printing and cutting the product into plates.
Ovnen omfatter et kammer 5 hvori støtte- og transportanordninger for hver bane er montert, idet transportanordningene tillater at hver bane 2 individuelt kan beveges kontinuerlig gjennom ovnen. Disse transportanordninger kan være, som vist, ruller 6 som danner veier for banene. Alternativt kan transportanordningene være endeløse belter eller kjeder eller, naturligvis, enhver annen hensiktsmessig anordning som er i stand til individuelt og separat å trans-portere banene 2. The oven comprises a chamber 5 in which support and transport devices for each web are mounted, the transport devices allowing each web 2 individually to be continuously moved through the oven. These transport devices can be, as shown, rollers 6 which form paths for the tracks. Alternatively, the transport devices may be endless belts or chains or, of course, any other suitable device capable of individually and separately transporting the webs 2.
Støtte- og transportanordningene 6 befinner seg på linje med korresponderende inntaksåpninger 7 i ovnens 1 ene vegg. Banene 2 er ekstrudert og lagret og deretter viklet på ruller R. Banene trekkes av rullene R og kommer inn i ovnen 1 gjennom åpningene 7. Som vist er disse åpning-er 7 utformet i en endevegg av ovnen 1. The support and transport devices 6 are located in line with corresponding intake openings 7 in one wall of the oven 1. The webs 2 are extruded and stored and then wound on rollers R. The webs are pulled by the rollers R and enter the oven 1 through the openings 7. As shown, these openings 7 are formed in an end wall of the oven 1.
Det skal imidlertid bemerkes at banene med ekspandert materiale kan innføres enten horisontalt eller vertikalt uten at dette har skadelig virkning på behandlingen. Lede-anordningene 6 for banene monteres derfor tilsvarende. However, it should be noted that the webs of expanded material can be introduced either horizontally or vertically without this having a detrimental effect on the treatment. The guide devices 6 for the tracks are therefore mounted accordingly.
I ethvert tilfelle vil det i den vegg i ovnen som befinner seg motsatt veggen med inntaksåpningene 7, befinne seg en uttaksåpning 8 for alle baner 2. I ovnen 1 ved uttaksåpningen 8 er montert minst ett par med justerbare styreruller 9 for å tvinge banene 2 til å nærme seg og berøre hverandre for å bli overlagret hverandre. In any case, in the wall of the oven which is located opposite the wall with the intake openings 7, there will be an outlet opening 8 for all webs 2. In the oven 1 at the outlet opening 8, at least one pair of adjustable guide rollers 9 is mounted to force the webs 2 to to approach and touch each other to be superimposed on each other.
For oppvarming av banene med ekstrudert, ekspandert materiale 2 idet de passerer gjennom ovnen 1, er det anordnet oppvarmingsanordninger 10, som f.eks. varmeplater med elektrisk motstand mellom holde- og transportanordningene 6 for banene 2, idet varmepanelene holder ovnskammeret på en forvalgt temperatur for derved å fremkalle en fastlagt ekspansjon av hver enkelt bane. Det sier seg selv at en ekspansjon av banen gir seg utslag i en reduksjon av dets tetthet. For heating the webs with extruded, expanded material 2 as they pass through the oven 1, heating devices 10 are arranged, which e.g. heating plates with electrical resistance between the holding and transport devices 6 for the webs 2, the heating panels keeping the oven chamber at a preselected temperature to thereby induce a determined expansion of each individual web. It goes without saying that an expansion of the track results in a reduction of its density.
Videre er ytterligere varmeelementer 11 anordnet i området ved uttaket 8 i ovnen hvor banene 2' bøyes mot paret med styreruller 9, for dermed å varme opp de motståen-de overflateområder av tilstøtende bane til deres smeltetemperatur. En slik smelting tillater de tilstøtende baner å adhere eller sammensmelte etter som de passerer mellom rullene 9. Dette er tilfellet uavhengig av om banenes over-flate er glatte eller om de har vært utsatt for en tidligere mekanisk forbehandling. Furthermore, further heating elements 11 are arranged in the area at the outlet 8 in the furnace where the webs 2' are bent towards the pair of guide rollers 9, in order to heat up the opposing surface areas of adjacent webs to their melting temperature. Such melting allows the adjacent webs to adhere or fuse as they pass between the rollers 9. This is the case regardless of whether the surface of the webs is smooth or whether they have been subjected to a previous mechanical pre-treatment.
På denne måte kan banene 2 behandles med enhver hensiktsmessig ønsket temperatur over en valgt tidsperiode mens de passerer gjennom ovnen 1. I løpet av en slik behandling gjennomgår de en ekspansjon i tillegg til den som fant sted i begynnelsen, noe som gjør det mulig å redusere banens tetthet til en ønsket verdi. Etter den ytterligere ekspansjon utsettes de overflater som skal festes til hverandre for påvirkning fra varmeelementene 11 slik at i det minste deres overflateområder er oppvarmet til deres smeltetemperatur. Følgelig vil banene når de passerer mellom styrerullene 9, sveises sammen idet de danner en enkelt plate 20 med et antall lag som tilsvarer det antall baner som benyttes idet platens tykkelse er lik summen av tykkels-en av de plater som medvirker og en tetthet som er avhengig av platenes tetthet. In this way, the webs 2 can be treated at any suitably desired temperature over a selected period of time while passing through the furnace 1. During such treatment, they undergo an expansion in addition to that which took place at the beginning, which makes it possible to reduce web density to a desired value. After the further expansion, the surfaces to be attached to each other are exposed to the influence of the heating elements 11 so that at least their surface areas are heated to their melting temperature. Consequently, the webs, when they pass between the guide rollers 9, will be welded together forming a single plate 20 with a number of layers corresponding to the number of webs used, the thickness of the plate being equal to the sum of the thicknesses of the contributing plates and a density that is depending on the density of the plates.
Avhengig av det termoplastiske materiales beskaf-fenhet, hvorav banene er dannet, kan temperaturen i ovnen varierer fra 100 til 200° C og transporthas tigheten for banene gjennom ovnen kan være fra 4 til 15 m/min. Ved bruk av disse parametre er det mulig å oppnå en reduksjon i tettheten fra 60 til 70 g/l i startbanene til 22 g/l i det ferdige produkt. Depending on the nature of the thermoplastic material from which the webs are formed, the temperature in the oven can vary from 100 to 200° C and the transport speed for the webs through the oven can be from 4 to 15 m/min. By using these parameters, it is possible to achieve a reduction in density from 60 to 70 g/l in the starting webs to 22 g/l in the finished product.
Med andre ord tillater fremgangsmåten ifølge foreliggende oppfinnelse at volumet av startbanen vesentlig kan forsterkes uten å forårsake noen betydelige tekniske vanskeligheter. In other words, the method according to the present invention allows the volume of the runway to be significantly increased without causing any significant technical difficulties.
Flerlagsplaten som produseres på denne måte, ledes deretter til og gjennom en kalibrerings- og kjølestasjon 3 hvor det ferdige produkts fysiske karakteristika fikseres. Denne stasjon 3 omfatter, som vist på fig. 2, to sett med justerbare ruller 12 som vender mot hverandre for derimellom å danne en styringsbane hvor platene 20 må passere. Mens platene passeres mellom rullene, avkjøles de, f.eks. med gjennomstrømning av luft gjennom åpningene 13 som er anordnet over og under rullene 12 og av vann. The multilayer plate produced in this way is then led to and through a calibration and cooling station 3 where the finished product's physical characteristics are fixed. This station 3 comprises, as shown in fig. 2, two sets of adjustable rollers 12 which face each other to form therebetween a guideway through which the plates 20 must pass. As the plates are passed between the rollers, they are cooled, e.g. with the flow of air through the openings 13 which are arranged above and below the rollers 12 and of water.
Etter avkjøling er produktet klart for etterfølg-ende trykking og oppkutting i størrelse. Dette gjennomføres av behandlingsstasjonen 4. After cooling, the product is ready for subsequent printing and cutting to size. This is carried out by treatment station 4.
Ved bruk av den ovenfor beskrevne fremgangsmåte er det mulig å danne plater av ethvert ekstrudert, ekspandert termoplastisk materiale, idet banene som danner platen, i tillegg kan inneholde slike ting som branndempende mater-ialer og farveingredienser. Dersom banene er lagret av fiberformet materiale, kan fibrene være orientert eller tilfeldig anordnet. Using the method described above, it is possible to form sheets of any extruded, expanded thermoplastic material, as the webs that form the sheet may also contain such things as fire-retardant materials and coloring ingredients. If the webs are made of fibrous material, the fibers can be oriented or randomly arranged.
Under prosessen er det også mulig å tilføre en eller begge de ytre overflater av de ferdige produkter, piastlaminater eller vanlig eller bituminøst papir for å oppnå et endelig produkt av ønsket struktur og med ønskede karakteristika. During the process, it is also possible to add to one or both of the outer surfaces of the finished products, piastal laminates or ordinary or bituminous paper to obtain a final product of the desired structure and with the desired characteristics.
Endelig er det mulig på en enkel og økonomisk måte å oppnå et flerlags produkt som har en tetthet, termisk isolasjon, mekanisk styrke, stor motstand mot fuktighetsopp-tak, stor motstand mot opptak av vann og dimensjonsstabilit-et som tilsvarer lignende produkter oppnådd med direkte ekstrusjon med en enkeltlags oppbygning. Finally, it is possible in a simple and economical way to obtain a multi-layered product that has a density, thermal insulation, mechanical strength, high resistance to moisture absorption, high resistance to water absorption and dimensional stability equivalent to similar products obtained with direct extrusion with a single layer structure.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT528278A IT1104292B (en) | 1978-12-12 | 1978-12-12 | PROCEDURE FOR THE COUPLING OF EXPANDED THERMOPLASTIC RESIN LEAVES, AND COMPOSITE PANEL OBTAINED BY THAT PROCEDURE |
Publications (3)
Publication Number | Publication Date |
---|---|
NO793328L NO793328L (en) | 1980-06-13 |
NO155652B true NO155652B (en) | 1986-01-26 |
NO155652C NO155652C (en) | 1987-05-06 |
Family
ID=11120142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO793328A NO155652C (en) | 1978-12-12 | 1979-10-16 | PROCEDURE FOR CONTINUOUS PREPARATION OF A PLATE BY CONNECTION OF TWO OR MORE COATS OF EXPANDED THERMOPLASTIC RESIN. |
Country Status (13)
Country | Link |
---|---|
AT (1) | AT367348B (en) |
BE (1) | BE879571A (en) |
CH (1) | CH635776A5 (en) |
DE (1) | DE2943588C2 (en) |
DK (1) | DK150978C (en) |
ES (1) | ES485983A1 (en) |
FR (1) | FR2443928A1 (en) |
GB (1) | GB2044672B (en) |
GR (1) | GR66671B (en) |
IT (1) | IT1104292B (en) |
NL (1) | NL185757C (en) |
NO (1) | NO155652C (en) |
SE (1) | SE430967B (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3635049A1 (en) * | 1986-10-15 | 1988-04-28 | Pegulan Werke Ag | METHOD FOR PRODUCING A DRAWABLE FOAM COMPOSITE FILM |
DE19755940A1 (en) * | 1997-12-16 | 1999-06-24 | Armstrong Insulation Products | Process for the production of a thermally insulating sheet material |
US9296126B2 (en) | 2003-05-17 | 2016-03-29 | Microgreen Polymers, Inc. | Deep drawn microcellularly foamed polymeric containers made via solid-state gas impregnation thermoforming |
ES2379412T3 (en) | 2007-01-17 | 2012-04-25 | Microgreen Polymers, Inc. | Multilayer Foamed Polymer Object |
US8568125B2 (en) | 2008-04-14 | 2013-10-29 | Microgreen Polymers Inc. | Roll fed flotation/impingement air ovens and related thermoforming systems for corrugation-free heating and expanding of gas impregnated thermoplastic webs |
GB2474431B (en) * | 2009-10-13 | 2012-10-31 | Gurit Uk Ltd | Production of extruded foam |
CA2795961A1 (en) | 2010-04-19 | 2011-10-27 | Krishna Nadella | A method for joining thermoplastic polymer material |
US20130302547A1 (en) * | 2011-01-27 | 2013-11-14 | Krishna V. Nadella | Microstructure for fusion bonded thermoplastic polymer material, and related methods |
EP2820074B1 (en) | 2012-02-29 | 2018-06-13 | Dart Container Corporation | Method for infusing a gas into a thermoplastic material, and related systems |
MX2014014206A (en) | 2012-05-22 | 2015-06-04 | Owens Corning Intellectual Cap | Laminated foam product and methods for making laminated foam products. |
CA2897837C (en) | 2013-01-14 | 2019-05-14 | Microgreen Polymers, Inc. | Systems for unwinding a roll of thermoplastic material interleaved with a porous material, and related methods |
CN108859131A (en) * | 2018-06-05 | 2018-11-23 | 浙江乍浦塑料制品有限公司 | A kind of hollow plate automatic manufacturing device and its production technology |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7100165U (en) * | 1971-06-03 | Lavorazione Materie Plastische Lmp Spa | Composite film made of foamed plastic layers | |
DE1504917A1 (en) * | 1963-05-29 | 1969-04-03 | Rudolf Schoebel | Resilient floor or wall covering |
DE2114446A1 (en) * | 1971-03-25 | 1972-09-28 | Metallgesellschaft Ag | Foam with dense skin - on both sides produced by joining two foam layers externally cooled |
-
1978
- 1978-12-12 IT IT528278A patent/IT1104292B/en active
-
1979
- 1979-10-16 GB GB7935878A patent/GB2044672B/en not_active Expired
- 1979-10-16 DK DK435579A patent/DK150978C/en active
- 1979-10-16 NO NO793328A patent/NO155652C/en unknown
- 1979-10-17 AT AT675679A patent/AT367348B/en not_active IP Right Cessation
- 1979-10-17 SE SE7908575A patent/SE430967B/en not_active IP Right Cessation
- 1979-10-18 CH CH938179A patent/CH635776A5/en not_active IP Right Cessation
- 1979-10-22 BE BE0/197771A patent/BE879571A/en not_active IP Right Cessation
- 1979-10-23 GR GR60318A patent/GR66671B/el unknown
- 1979-10-29 DE DE2943588A patent/DE2943588C2/en not_active Expired
- 1979-11-14 NL NL7908336A patent/NL185757C/en not_active IP Right Cessation
- 1979-11-15 ES ES485983A patent/ES485983A1/en not_active Expired
- 1979-12-12 FR FR7930509A patent/FR2443928A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
ATA675679A (en) | 1981-11-15 |
AT367348B (en) | 1982-06-25 |
DE2943588A1 (en) | 1980-06-26 |
CH635776A5 (en) | 1983-04-29 |
DK150978B (en) | 1987-10-05 |
IT7805282A0 (en) | 1978-12-12 |
BE879571A (en) | 1980-02-15 |
IT1104292B (en) | 1985-10-21 |
GB2044672A (en) | 1980-10-22 |
NO793328L (en) | 1980-06-13 |
DK150978C (en) | 1988-02-22 |
ES485983A1 (en) | 1980-09-01 |
DK435579A (en) | 1980-06-13 |
NL7908336A (en) | 1980-06-16 |
DE2943588C2 (en) | 1984-10-18 |
FR2443928B1 (en) | 1984-04-27 |
GR66671B (en) | 1981-04-08 |
NL185757C (en) | 1990-07-16 |
SE7908575L (en) | 1980-06-13 |
NO155652C (en) | 1987-05-06 |
SE430967B (en) | 1983-12-27 |
GB2044672B (en) | 1983-04-20 |
FR2443928A1 (en) | 1980-07-11 |
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