FI110932B - Mineral wool based insulation element - Google Patents

Description

110932

Mineral wool based insulating element - Mineralullsbaserat isoleringselement

In shipbuilding, fire insulation panels are required for partition wall extensions and other structures. Until now, conventional mineral wool boards, which are covered with a thin sheet to achieve the required gas tightness, have been used.

Particularly for modern large passenger ships, the installation of these insulating panels and overlays is very laborious because of the large number of longitudinal and transverse beams, pipes, ducts and the like, while requiring the passenger passageways to form intact fire insulated compartments. This results in a lot of manual work to install insulation boards to make all joints as tight as possible.

15 In addition, mineral wool boards and the sheet metal panels that protect them cause a great deal of nuisance, creaking and whining as the ship moves in the waves.

It is an object of the present invention to provide a mineral wool-based insulating element, particularly for shipbuilding, which is easily machined at both its surface and its edges and comprises a mineral wool board and a layer of waterglass based medium adhered thereto, at least eliminating or substantially eliminating the aforementioned problems.

This is accomplished by the mineral wool elements according to the appended claims 1-3, the features of which are set forth in the claims sections 1-3.

This is accomplished by the mineral wool elements according to claims 1-3 below.

The mineral wool element according to the invention fulfills the strength and fire insulation properties to be placed on such an insulating board in a ship. The ve-30 silage-based medium layer mixed with reinforcing fibers forms on the surface (s) of the mineral wool board or as an adhesive layer between the mineral wool boards a reinforcing layer that provides the required mineral wool element with the required bending strength and gas tightness. The media layer thus replaces the sheet metal sheet previously used as the coating for the mineral sheet.

35 2 110932

The mineral wool element comprises a conventional mineral wool board formed of a plurality of overlapping mineral fiber layers and containing a binder.

Due to its adhesive properties, the water-based medium adheres to the mineral wool material permanently. Non-combustible reinforcing fibers form a rigid solid structure with a water glass based medium which, in combination with a mineral wool board, gives the element the required strength. At the same time, the water glass-based medium layer makes the element gas-tight.

Fibers, preferably glass fibers, admixed with water-based medium have a length of up to 2-3 mm, but may of course be larger in size. The amount of glass fibers in the adhesive layer as well as the thickness of the adhesive layer between the mineral boards or the outer surface (s) of the board can be easily determined empirically.

15

According to a preferred embodiment of the invention, the two mineral wool boards are joined together by a water layer based on water glass and mixed with reinforcing fibers, which acts as an adhesive to bond the boards together and form a solid structure which gives the mineral element the required strength and gas tightness.

20

According to another embodiment of the invention, the mineral wool board is coated with fibers reinforced with a water glass based medium mixture on one side or on both sides. The medium coating permanently adheres to the mineral wool plate thanks to the water glass and gives the element the required strength and gas tightness. Thanks to the coating an-25, one or both of the outer surfaces of the element are more conveniently handled when the easily dustable surface is bonded with a fibrous adhesive mixture.

The mineral wool element of the invention may also include a plurality of mineral wool boards on top of each other, with an adhesive layer connecting the boards and at least one of the adhesive reinforcing fibers between the boards.

It is advantageous to coat the mineral wool element formed of two mineral sheets and a fibrous adhesive layer connecting them, either with the same fibrous adhesive layer or with another covering and antifouling agent, for example latex earth 35.

The great advantage of the mineral wool element is its machinability. It is easy to make transverse cuts to the surface and is usually easily machined with a knife.

3 110932 This makes it easy to combine panels into wall panels while providing a tight joint construction.

Smaller mineral wool elements, such as the height between ship decks 5 or the height between the deck bulkhead and the deck above and having a width of, for example, 2 m, are combined into long wall elements such that a strip of mineral wool approximately half the thickness is removed. the length and width of the element are empirically appropriate, for example 25 cm. The staggered edges 10 of the elements are then matched to form a joint between the two elements, which are locked at a distance by means of adjustable fasteners, for example lining-wool screws.

Rockwool screws are fasteners well known in the art. They are fasteners twisted from steel wire to food-15.

The simplest approach is to treat a mineral wool element consisting of two mineral wool boards and an adhesive fiber adhesive layer therebetween. The strips of mineral wool that are removed at the edges are easily detached to the adhesive fiber layer. This will leave two overlapping layers of adhesive fiber at the joint. This is not a disadvantage, however, because by fastening the plates together with rockwool screws, the joint can be compressed so that a uniform surface is created.

The easy machinability of the mineral wool element is particularly useful when installing elements in tight or otherwise difficult areas where tight contact with various forms of structures, such as beams, ducts, pipes, etc., must be achieved since the edge of the element can easily be machined using a knife.

30

A preferred embodiment of the invention is illustrated in the accompanying figures, in which Fig. 1 is a front view of a wall element according to the invention, Fig. 2 is an enlarged and horizontal sectional view of the wall element of Fig. 1 mounted as an extension between two vertical walls; between the next cover.

4, 110932

Fig. 1 shows three mineral wool elements 1 joined together as a wall element 2. The two junctions of the three mineral wool elements 1 are denoted by reference numeral 3 and the rock wool screws 4 are shown therein. The mineral wool elements 1 are

In the vertical sectional view of Fig. 3, the wall element is shown intact without junctions. The wall element is disposed here between the roof 11 of the cabin and the next deck 12 as an extension of the partition 13 between the cabins. The wall element is secured to the cover 12 by means of a fastening profile 5. The lower edge of the wall element is fitted to the U-profile 8 and secured to the cabin partition 13 and the ceiling 11. The wall elements are normally pre-cut at the edges.

In the horizontal section of Figure 2, the connections of the wall element are clearly visible. A strip of mineral wool down to the adhesive layer 10 has been removed at one of the joining edges. The single-ply board edges are fitted together and rock wool screws 4 are secured to the joint area 3 to lock the joint. The other edge of the wall element is embedded in a U-shaped mounting profile 8 and the opposite edge is fixed to the wall by a map profile 5.

Claims (6)

5 110932 A mineral wool-based insulating element (1) which is easy to work on both its surfaces and its edges, particularly for shipbuilding, comprising a mineral wool board (9) and a layer of water glass-based medium adhered thereto, characterized in that contains non-combustible reinforcing fibers, preferably glass fibers, and that the minimum reinforcing fibers have sufficient bending strength with respect to the bending strength required by the mineral wool element (1), suitably about 2 mm. 10 A mineral wool-based insulating element (1), which is easy to work on both surfaces and edges, and is particularly intended for shipbuilding, comprising two overlapping mineral wool boards interconnected by a layer of adhesive material (10), characterized in that the water-based adhesive contains non-combustible reinforcing fibers, preferably glass fibers, and that the reinforcing fibers have a minimum length of bending strength, suitably about 2 mm, with respect to the mineral wool element (1). A mineral wool based insulating element (1) which is easy to work on both its surfaces and its edges, and which is particularly intended for shipbuilding, comprising more than two overlapping mineral wool boards joined together by interlayer bonding layers, of which /; ; at least one of the layers is a water glass based adhesive, characterized in that the water glass 2. adhesive contains non-combustible reinforcing fibers, preferably glass fibers, and that:: '! the minimum length of the reinforcing fibers is sufficient with respect to the bending strength required by the mineral wool element (1), suitably about 2 mm. Mineral wool-based insulating element (1) according to one of Claims 1 to 3, characterized in that the reinforcing fibers have a length of between about 2 mm and 20 mm, preferably between about 3 mm and 6 mm. Mineral wool insulating element (1) according to one or more of Claims 1 to 4, characterized in that one or both outer surfaces of the element (1) are covered with a water glass-based medium or a dust-binding non-combustible material such as latex paint or Al. with foil. 6 110932