SE435472B

SE435472B - Stiff laminate board intended for insulation material

Info

Publication number: SE435472B
Application number: SE8305809A
Authority: SE
Inventors: H P S Lindquist; B N-E Broddesson; B O I Larsson
Original assignee: Gullfiber Ab
Priority date: 1983-10-21
Filing date: 1983-10-21
Publication date: 1984-10-01
Also published as: SE8305809D0

Abstract

A rigid lamella disc (14) that tolerates relatively high loading and which comprises of at least two lamella layers (16) with freely contacting lamellas in each layer (18). The lamella layers (16) are turned 90 degrees relative to each other and are immediately inter-mutually bound to each other using a binding agent, which is suitably applied only over the joins of the lamellas at one of the surfaces of one of the lamella layers. The main direction of the fibres (12) of the lamella layers (16) are to preferably draw off in a right angle to the plane of the lamella layer (14).<IMAGE>

Description

'v-'l IU 15 zoi 25 esteszsos-sí gå l den traditionella av mineralnll bestående isolerskivan JU enligt fig. 1 sträcker sig flertalet av de enskilda fibrerna 12 i en s.k. huvudriktning. Denna är på ritningen angiven med en pil. Fibrerna 12, som företrädesvis har en genomsnittslängd av ett par tre centimeter, är naturligtvis inte helt bundna till denna huvudriktníng utan kan ha riktningsavvikelser inom relativt stora gränser. In the traditional insulating sheet JU according to Fig. 1, the plurality of the individual fibers 12 extend in a so-called main direction. This is indicated in the drawing by an arrow. The fibers 12, which preferably have an average length of a couple of three centimeters, are of course not completely bound to this main direction but can have directional deviations within relatively large limits.

Den enligt uppfinningen tillverkade lamellskivan 14 i fig. 2 innefattar tvâ speciellt komponerade lamellskikt 16.The lamella sheet 14 made according to the invention in Fig. 2 comprises two specially composed lamella layers 16.

*Det kan förekomma olika mineralullsorter I de olika skikten och variationer kan även förekomma inom skíkten. Även densitetcn kan variera. Varje lamellskíkt 16 består av ett önskat antal lnmeller 18, som är skurna ur den konventionella ísolerskívan enligt tig. 1, varvid den nya lamellskivan 14 innefattar I lnmollcr 18; som är kapade tvärs den i Fig. 1 angivna fiber- rlktníngen. På grund av ovannämnda riktningsavvikelser hos de enskilda fibrerna 12 är det emellertid tänkbart att utföra kapningen av lamellerna utmed fibrernas huvudriktning. I sist- nämnda Eall erhålles emellertid en slutprodukt, som är_något mindre'böjstyv.* There may be different types of mineral wool in the different layers and variations may also occur within the layers. The density can also vary. Each lamella layer 16 consists of a desired number of inserts 18, which are cut from the conventional insulating sheet according to FIG. 1, the new lamella plate 14 comprising 1 mnmollcr 18; which are cut across the fiber direction shown in Fig. 1. However, due to the above-mentioned directional deviations of the individual fibers 12, it is conceivable to perform the cutting of the slats along the main direction of the fibers. In the latter Eall, however, an end product is obtained which is somewhat less bending rigid.

Såsom vidare framgår av fig. 2 anligger de enskilda lamellerna 18 mot varandra i respektive lamellskikt 16 men lamellerna korsar varandra med avseende på de båda skikten.As further appears from Fig. 2, the individual slats 18 abut against each other in the respective slat layers 16, but the slats cross each other with respect to the two layers.

Efter lamellernas 18 tillkapning, som enligt ovan skett tvärs fibrernas 12 huvudriktníng, har lamellerna 18 vridits 900 och applicerats mot varandra, så att fibrernas 12 huvudriktning nu _ förlöper på det av pilen i fig. 2 angivna sättet.After the cutting of the slats 18, which according to the above took place transversely to the main direction of the fibers 12, the slats 18 have been turned 900 and applied to each other, so that the main direction of the fibers 12 now proceeds in the manner indicated by the arrow in Fig. 2.

Efter placering av lamellerna 18 med lângsidorna mot varandra har ett smältlim anbringats över lamellfogarna vidr lamellskiktets ena sida. Därefter har det andra lamellskiktets lameller placerats tvärs lamellerna i det första skiktet.After placing the slats 18 with the long sides facing each other, a hot melt adhesive has been applied over the slat joints at one side of the slat layer. Thereafter, the slats of the second lamella layer have been placed across the slats in the first layer.

Den på detta sätt erhållna sammanbindningen av lamellskíkten genom nämnda smältlim ger en enhetlig lamellskiva 14, som väl tål den avsedda belastningen. Naturligtvis kan smältlimmet appliceras på annat sätt mellan lamellskikten. Sålunda kan det appliceras på den ena eller på båda lamellskikten över hela ytan eller i strängar enligt något förutbestämt mönster.The interconnection of the lamella layer thus obtained by said hot-melt adhesive gives a uniform lamella sheet 14 which can withstand the intended load. Of course, the hot melt adhesive can be applied in another way between the lamella layers. Thus, it can be applied to one or both lamella layers over the entire surface or in strands according to any predetermined pattern.

För ytterligare förstärkning av lamellskívan kan det ibland även vara fördelaktigt att applicera yttre täckskikt i form av papper, plywood, gips- eller spånskivor och liknande, two? rrUUBLlIL 5 aaﬂsao9-9 som líxnmaš fast vid själva lamellskívun. Härigenom underlättas ocksa hanteringen av densamma, såsom redan ärkâint i. ochför sig. =æ§ I* ïJÉf?ø uuAuïvFor further reinforcement of the lamella board, it can sometimes also be advantageous to apply outer cover layers in the form of paper, plywood, plaster or chipboard and the like, two? rrUUBLlIL 5 aa ﬂ sao9-9 as líxnmaš fixed to the lamella disc itself. This also facilitates the handling of the same, as already acknowledged in and of itself. = æ§ I * ïJÉf? ø uuAuïv

Claims

Iasolsvakos-sf in Claim I. Bending rigid and lamella plate (10) intended for insulating purposes comprising at least two lamella layers (16) of mineral wool, which have adjacent lamella layers (18) in each layer, characterized in that , that the slats freely abut each other in the respective slat layers and that the mutually 900 offset lamella layers are directly bonded to each other by means of _ ct! binder. j (14) plan. ((16) externally are covered by the respective surface layers in the form of paper, 1 -ø a «v 1 v va nu: ~ ~ t> ~ Z. Slat plate according to claim I, characterized in that the lamella layers (sol) bonding The adhesive, preferably a hot melt adhesive, is applied only over the lamella joints of one surface of the lamella layer (10) 5. The lamella sheet according to claim 1 or 2 may be a part of the fact that the fiber direction in the mineral wool the lamella layers (10) are offset 900 relative to the fiber direction in an integrally formed conventional insulating sheet.7 4. A lamella sheet according to any one of the preceding claims, characterized in that the main direction of the fibers (12) of the lamella layers (16) runs in a straight line Angle to the lamella board 5. A lamella board according to any one of the preceding claims, characterized in that the two lamella layers are plywood, gypsum or chipboard and the like. v Poon QUALITY, "_ 1gfumum-, w..nmßm = -a, _.