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Publication number
NO117841B
NO117841B NO164582A NO16458266A NO117841B NO 117841 B NO117841 B NO 117841B NO 164582 A NO164582 A NO 164582A NO 16458266 A NO16458266 A NO 16458266A NO 117841 B NO117841 B NO 117841B
Authority
NO
Norway
Prior art keywords
mat
fibers
corrugation
web
cover layers
Prior art date
Application number
NO164582A
Other languages
Norwegian (no)
Inventor
K Holbek
Original Assignee
Kaehler & Co I
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kaehler & Co I filed Critical Kaehler & Co I
Publication of NO117841B publication Critical patent/NO117841B/no

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/296Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and non-metallic or unspecified sheet-material
    • 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
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34Auxiliary operations
    • B29C44/56After-treatment of articles, e.g. for altering the shape
    • 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
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06Fibrous reinforcements only
    • B29C70/08Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/78Heat insulating elements
    • E04B1/80Heat insulating elements slab-shaped
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E04C2/243Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 one at least of the material being insulating
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/36Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0012Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular thermal properties
    • B29K2995/0015Insulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00Flat articles, e.g. films or sheets
    • B29L2007/002Panels; Plates; Sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00Layered products

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Description

Fremgangsmåte til fremstilling av isolerende byggeelementer Procedure for the production of insulating building elements

av sandwichtypen. of the sandwich type.

Foreliggende oppfinnelse angår en fremgangsmåte til fremstilling av isolerende byggeelementer av saridwich-typen, hvor hvert element består av to dekklag av relativt hårdt materiale, som er dannet ved herdning av et bløtere utgangsmateriale, som f. eks.' asbestsement, skumstoff eller armert formstoff, såsom glassfiberarmert polyester. Mellomlaget mellom dekklagene består av mineralull, hvor fibrene ligger hovedsakelig vinkelrett på elementets overflate. The present invention relates to a method for producing insulating building elements of the saridwich type, where each element consists of two cover layers of relatively hard material, which are formed by hardening a softer starting material, such as asbestos cement, foam or reinforced molding material, such as glass fiber reinforced polyester. The intermediate layer between the cover layers consists of mineral wool, where the fibers lie mainly perpendicular to the surface of the element.

Ifølge en kjent fremgangsmåte til fremstilling av slike sandwich-byggeelementer skjærer man opp en i og for seg kjent matte eller bane av mineralull, hvor fibrene, som i det vesentlige er parallelle med mattens eller banens overflate, According to a known method for producing such sandwich building elements, a per se known mat or web of mineral wool is cut, where the fibers, which are essentially parallel to the surface of the mat or web,

er avbundet ved hjelp av et bindemiddel. Matten eller banen skjæres opp i is bound by means of a binding agent. The mat or track is cut into

strimler, som derpå dreies 90° om sin lengdeakse og klebes sammen, således at klebefla■ tiene faller sammen med de opprinnelige overflater. Deretter påklebes to dekklag av et passende materiale på overflatene av matte- eller banestrimlene. strips, which are then rotated 90° about their longitudinal axis and glued together, so that the adhesive surfaces coincide with the original surfaces. Two cover layers of a suitable material are then adhered to the surfaces of the mat or track strips.

Denne fremgangsmåte er forholdsvis besværlig og tidkrevende og har dessuten This method is relatively difficult and time-consuming and also has

den ulempe at det er umulig, eller i beste fall meget vanskelig, å forsterke det fremstilte sandwich-element med f. eks. forsterkningsribber som er intimt forbundet med dekklagene. the disadvantage that it is impossible, or at best very difficult, to reinforce the manufactured sandwich element with e.g. reinforcing ribs which are intimately connected to the cover layers.

Oppfinnelsen har til formål å avhjelpe disse ulemper og muliggjøre en fremgangsmåte til fremstilling av isolerende byggælementer av sandwich-typen, hvor selve fremstillingsprosessen er enklere og hurtigere enn den kjente og hvor de fremstilte elementer dessuten har større mekanisk styrke enn de kjente elementer av lignende art. The purpose of the invention is to remedy these disadvantages and enable a method for the production of insulating building elements of the sandwich type, where the manufacturing process itself is simpler and faster than the known one and where the produced elements also have greater mechanical strength than the known elements of a similar nature.

Fremgangsmåten ifølge oppfinnelsen erkarakterisert vedat en bane eller matte The method according to the invention is characterized by a path or mat

av mineralull med i det vesentlige ens orienterte fibre, som ligger parallelt med banens eller mattens overflate, på hver side påføres et lag av et bløtt, uherdet, men of mineral wool with essentially identically oriented fibres, lying parallel to the surface of the track or mat, on each side a layer of a soft, unhardened, but

/herdbart materiale, som er utgangsmateriale for det egentlige dekkmateriale. /hardenable material, which is the starting material for the actual cover material.

Det dannede aggregat, som således består av tre lag, korrugeres så i fibrenes hovedretning, idet banen eller matten forkortes i denne retning under dannelse av smale, relativt tettliggende folder eller bølger, som løper vinkelrett på fibrenes hovedretning, idet man eventuelt samtidig sørger for at de to dekklags ytterside i det vesentlige forblir ubrudte og parallelle og fortrinnsvis plane ved at de innadrettede tverr spalter, som oppstår i dekklagene lukkes under korrugeringen, f. eks. ved trykk i korrugeringsretningen, hvorpå det dannede element herdes. The aggregate formed, which thus consists of three layers, is then corrugated in the main direction of the fibres, with the web or mat being shortened in this direction to form narrow, relatively closely spaced folds or waves, which run perpendicular to the main direction of the fibres, possibly simultaneously ensuring that the outer side of the two cover layers essentially remains unbroken and parallel and preferably flat in that the inwardly directed transverse slits, which occur in the cover layers, are closed during the corrugation, e.g. by pressure in the corrugation direction, whereupon the formed element is hardened.

Den isolerende komponent i de beskrevne sandwichelementer utgjøres således The insulating component in the described sandwich elements is thus constituted

av mineralull som f. eks. slaggull, steinull og glassull, og materialet anvendes i form åv matter eller baner, hvor mineralfibrene er avbundet med bindemiddel på kjent vis. Fibrene i utgangsmaterialet bør ligge i hovedsaken ensrettet og parallelle med overflatene. Det kan i og for seg godt fremstilles elementer av lignende art som det beskrevne,6elvom fibrene ikke er i det vesentlige ensrettet, men ligger på kryss og tvers i alle mulige retninger parallelt med overflatene, eller endog selvom fibrene ikke er i hovedsaken parallelle med overflatene. of mineral wool such as beaten gold, rock wool and glass wool, and the material is used in the form of mats or webs, where the mineral fibers are bound with a binder in a known manner. The fibers in the starting material should lie essentially unidirectional and parallel to the surfaces. Elements of a similar nature to the one described can in and of themselves be produced,6 even if the fibers are not essentially unidirectional, but lie criss-cross in all possible directions parallel to the surfaces, or even if the fibers are not essentially parallel to the surfaces .

Det fremstilte element vil derved bare få en mindre andel av fibrene liggende vinkelrett på sluttproduktets overflate. Fibrene bør imidlertid i det vesentlige være ensrettede, selvom naturligvis avvikelser fra parallellitet utmerket godt kan tolereres. Avvikelser på inntil 20° eller ennu mere fra fibrenes hovedretning eller lengderetningen av den matte eller bane som anvendes som utgangsmateriale vil således ikke forringe sluttproduktets kvalitet i nevneverdig grad. The manufactured element will thereby only have a smaller proportion of the fibers lying perpendicular to the end product's surface. However, the fibers should essentially be unidirectional, although of course deviations from parallelism can be perfectly well tolerated. Deviations of up to 20° or more from the main direction of the fibers or the longitudinal direction of the mat or web used as starting material will thus not impair the quality of the final product to any significant extent.

Som dekkmateriale kan anvendes kjente, opprinnelig bløte, herdbare materialer, som f. eks. skumformstoff, såsom uretanskum eller andre hårde skumform-stoffer, asbestsement og lignende produkter og termoplastiske eller termo-herdende formstoffer, som f. eks. polyester, som eventuelt kan være armert. Det ikke herdede dekklagsmateriale anbringes på mineralullsmatten og klebes fast med et passende klebemiddel, som kan bestå av en eller to komponenter og være av de typer som vanligvis anvendes til lignende formål. Klebemidlet må kunne tåle de betingelser som elementet, og særlig dekklagene, tilslutt herdes ved, f. eks. forhøyet temperatur. Known, initially soft, hardenable materials can be used as cover material, such as e.g. foam molding material, such as urethane foam or other hard foam molding materials, asbestos cement and similar products and thermoplastic or thermosetting molding materials, such as e.g. polyester, which may optionally be reinforced. The non-cured cover layer material is placed on the mineral wool mat and glued with a suitable adhesive, which can consist of one or two components and be of the types usually used for similar purposes. The adhesive must be able to withstand the conditions under which the element, and especially the cover layers, are finally cured, e.g. elevated temperature.

Korrugeringen skjer på i og for seg kjent vis. Ved den avsluttende behandling før herdningen, hvor de utad åpne spalter eller bølgedaler lukkes, kan man eventuelt anbringe elementet mellom plater og påføre et trykk parallelt med korrugeringsretningen og dermed vinkelrett på bølgene og den opprinnelige fiber retning. The corrugation takes place in a manner known per se. During the final treatment before curing, where the outwardly open gaps or wave valleys are closed, the element can possibly be placed between plates and a pressure applied parallel to the corrugation direction and thus perpendicular to the waves and the original fiber direction.

Korrugeringen kan i prinsippet oppfattes som en trykkpåvirkning, dels parallelt med fibrenes hovedretning i den opprinnelige mineralullmatte, dels som et antall separate trykkpåvirkni nger vinkelrett på denne, idet trykket utøves alternerende fra den ene eller den annen flate av den opprinnelige matte med påført dekklag. The corrugation can in principle be perceived as a pressure effect, partly parallel to the main direction of the fibers in the original mineral wool mat, partly as a number of separate pressure effects perpendicular to this, as the pressure is exerted alternately from one or the other surface of the original mat with an applied covering layer.

Under korrugeringen skjer det en fortykning av aggregatet og samtidig en "veltning" av og bølgedannelse i mineralullfibrene, som derved kommer til å ligge i det vesentlige vinkelrett på førstnevnte trykkretning og parallelt med sistnevnte, når det påsees at bølgene i elementet som helhet blir smale og relativt tettliggende. During the corrugation, there is a thickening of the aggregate and at the same time a "tumbling" of and wave formation in the mineral wool fibers, which thereby come to lie essentially perpendicular to the former direction of pressure and parallel to the latter, when it is seen that the waves in the element as a whole become narrow and relatively closely spaced.

Avstanden fra bølgetopp til bølgetopp kan f. eks. høyst bli noen få ganger så stor som den samlede tykkelse av den opprinnelige matte eller bane pluss dekklagene, og eventuelt også mindre enn denne tykkelse. The distance from wave peak to wave peak can e.g. at most be a few times as large as the total thickness of the original mat or track plus the cover layers, and possibly also less than this thickness.

Under korrugeringen skjer det også en bølgedannelse i dekklagene, således at bølgene i disse rager inn i fibermatten eller banen. Man kan ved styring av korrugeringsprosessen og eventuelt ved hjelp av passende redskaper sørge for at disse bølger ,: !;sorrr rager inn i fibermassen, presses sammen og danner kompakte eller nesten kompakte ribber, som løper vinkelrett på elementets overflate og på den opprinnelige fiberretning og dermed i det vesentlige parallelt med den ny é.iiber retning. Disse ribber vil etter herdningen virke som effektive forsterkningsribber. Deres dybde inn i elementets indre kan variere. De behøver i alminnelighet ikke å nå helt inn til elementets midtplan, men det er intet i veien for, at korrugeringen kan være så sterk at ribbene når inn til eller endog forbi elementets midtplan, idet de to sett ribber naturligvis vil være for-skjøvet i forhold;til hverandre. Sett fra elementets ytterside vil disse ribber danne spalter eller fordypninger og man bør'sørge for at disse spalter eller fordypninger i det vesentlige lukkes, slik at elementet i hovedaken fremviser ubrutte overflater. During the corrugation, waves are also formed in the cover layers, so that the waves in these project into the fiber mat or web. By controlling the corrugation process and possibly using suitable tools, you can ensure that these waves,: !;sorrr project into the fiber mass, are pressed together and form compact or almost compact ribs, which run perpendicular to the surface of the element and to the original fiber direction and thus essentially parallel to the new é.iiber direction. After curing, these ribs will act as effective reinforcement ribs. Their depth into the interior of the element can vary. They generally do not need to reach all the way to the middle plane of the element, but there is nothing to prevent the corrugation being so strong that the ribs reach into or even past the middle plane of the element, as the two sets of ribs will naturally be offset in relationship; to each other. Seen from the outside of the element, these ribs will form slits or recesses and one should ensure that these slits or recesses are essentially closed, so that the element in the main axis presents unbroken surfaces.

En utførelsesform for et isolerende byggeelement av sandwich-typen, som er fremstilt ved fremgangsmåten ifølge oppfinnelsen, er vist skjematisk og i lengde-snitt på tegningen. På tegningen er 1. en korrugert matte eller bane av mineralull, hvis fibere 4. opprinnelig, dvs. før korrugeringen, har ligget i det vesentlige parallelt med tegningens plan. Korrugeringsretningen har vært parallell med tegningens plan dg med elementets overflate. Før korrugeringen er det på. mineralullsmatten 1. anbragt to opprinnelig plane lag, 2. og 3., av relativt bløtt, herdbart materiale, som f. eks. asbestsement, skumformstoff, armert formstoff e.l. Dekklagene er påført ved klebning. Ved korrugeringen er det dannet et antall temmelig smale, tettliggende bølger i dekklagene og korrugeringen er utført således at bølgene i dekklaget, som rager inn mot elementets midte, er presset sammen til smale ribber, 5. og 6. , som er forskjøvet i forhold til hverandre, og som virker som for sterkningsribber i det ferdige element. Det er sørget for at ribbespaltene 7. i elementets yttersiderer blitt i det vesentlige An embodiment of an insulating building element of the sandwich type, which is produced by the method according to the invention, is shown schematically and in longitudinal section in the drawing. In the drawing, 1. is a corrugated mat or web of mineral wool, the fibers of which 4. originally, i.e. before the corrugation, lay essentially parallel to the plane of the drawing. The corrugation direction has been parallel to the drawing's plane dg with the element's surface. Before the corrugation, it is on. the mineral wool mat 1. placed two initially flat layers, 2. and 3., of relatively soft, hardenable material, such as e.g. asbestos cement, foam molding material, reinforced molding material etc. The cover layers are applied by gluing. During the corrugation, a number of rather narrow, closely spaced waves are formed in the cover layers and the corrugation is carried out in such a way that the waves in the cover layer, which protrude towards the middle of the element, are pressed together to form narrow ribs, 5. and 6., which are offset in relation to each other, and which act as reinforcement ribs in the finished element. It has been ensured that the rib gaps 7. in the outer sides of the element have become substantially

helt lukket, således at det ferdige element har i hovedsaken ubrutte overflater. Det er også sørget for, f. eks. ved presning mellom plater, at elementets overflater er i det vesentlige parallelle og plane, som antydet på tegningen. Hvis det til særlige formål ønskes f. eks. hvelvinger av overflaten, kan elementet krummes noe ved hjelp av passende formingsorganer. completely closed, so that the finished element has mainly unbroken surfaces. It is also provided for, e.g. when pressed between plates, that the element's surfaces are essentially parallel and flat, as indicated in the drawing. If it is desired for special purposes, e.g. vaults of the surface, the element can be slightly curved by means of suitable forming means.

Under korrugeringen er fibrene dessuten blitt orientert i bølgeform med forholdsvis smale og steile bølger, således at fibrene i hovedsaken løper vinkelrette på det ferdige elements overflate, som antydet på tegningen. Små partier av fibrene vil naturligvis være parallelle med elementets overflate, nemlig i bølgetoppene og bølgedalene, og dessuten kan fiberretningeh også avvike noe fra den strengt vinkelrette orientering, slik som det også er antydet på tegningen. During the corrugation, the fibers have also been oriented in wave form with relatively narrow and steep waves, so that the fibers mainly run perpendicular to the surface of the finished element, as indicated in the drawing. Small parts of the fibers will of course be parallel to the surface of the element, namely in the wave crests and wave valleys, and furthermore the fiber direction may also deviate somewhat from the strictly perpendicular orientation, as is also indicated in the drawing.

Etter herdningen er elementet stivt, hårdt og formstabilt. After curing, the element is rigid, hard and dimensionally stable.

Claims (2)

1. Fremgangsmåte til'fremstilling av isolerende byggeelementer av sandwich-typen, som består av to dekklag av forholdsvis hårdt materiale, som er dannet ved herdning av et utgangsmateriale som f. eks. asbestsement, skumstoff eller glassfiberarmert polyester, og et mellomlag av mineralull, hvor fibrene løper hovedsakelig vinkelrett på elementets overflater,karakterisert vedat en bane eller matte av mineralull, med i det vesentlige ens orienterte fibre, som ligger parallelt med banens eller mattens overflate, på hver side påføres et lag av et utgang smateriale for dekklaget i bløt, uherdet tilstand, hvoretter de tre lag korrugeres i fibrenes hovedretning under forkortelse av banen eller matten i denne retning og under dannelse av smale, tettliggende folder eller bølger, som løper vinkelrett på fibrenes hovedretning, hvorpå det dannede element herdes.1. Method for the production of sandwich-type insulating building elements, which consist of two cover layers of relatively hard material, which are formed by hardening a starting material such as, for example asbestos cement, foam material or glass fiber reinforced polyester, and an intermediate layer of mineral wool, where the fibers run mainly perpendicular to the surfaces of the element, characterized by a web or mat of mineral wool, with essentially identically oriented fibres, which lie parallel to the surface of the web or mat, on each side, a layer of a starting material for the cover layer is applied in a soft, uncured state, after which the three layers are corrugated in the main direction of the fibers, shortening the web or mat in this direction and forming narrow, closely spaced folds or waves, which run perpendicular to the main direction of the fibers , after which the formed element is cured. 2. Fremgangsmåte som i påstand 1. ,karakterisert vedat de to dekklags yttersider utføres i det vesentlige ubrutte og parallelle og fortrinnsvis plane, ved at de innadrettede tverr spalter som oppstår i dekklagene under korrugeringen lukkes, f. eks. ved anvendelse av trykk i korrugeringsretningen.2. Method as in claim 1., characterized in that the outer sides of the two cover layers are made essentially unbroken and parallel and preferably flat, in that the inward-directed transverse slits that occur in the cover layers during the corrugation are closed, e.g. by applying pressure in the corrugation direction.
NO164582A 1965-09-07 1966-09-07 NO117841B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK457765AA DK109650C (en) 1965-09-07 1965-09-07 Method for producing sandwich-type building elements.

Publications (1)

Publication Number Publication Date
NO117841B true NO117841B (en) 1969-09-29

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Application Number Title Priority Date Filing Date
NO164582A NO117841B (en) 1965-09-07 1966-09-07

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DK (1) DK109650C (en)
GB (1) GB1159605A (en)
NO (1) NO117841B (en)
SE (1) SE306046B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9015695U1 (en) * 1990-11-16 1991-02-28 Oscar Goßler KG (GmbH & Co), 2057 Reinbek Module made of fibre mats

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Publication number Publication date
SE306046B (en) 1968-11-11
DK109650C (en) 1968-05-27
GB1159605A (en) 1969-07-30

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