UA85919C2 - Method for fixation of surfaces of material made of mineral fiber and device for its implementation and device for holding together two surfaces of material - Google Patents

Abstract

The present invention provides a device (5) for use in holding two surfaces of mineral wool material (2) together, the device comprising a belt (9), the belt having a first end and a second end with a pin (6) at each end wherein: the belt is flexible; and each pin is substantially rigid and is angled to comprise a connecting part (8) which is joined to the belt and an insertion part (7) wherein the angle between the connecting part and the insertion part is between 35 and 80°. The device of the present invention is particularly useful for holding two surfaces of insulation material together at a comer of a cavity wall. The method of holding surfaces of mineral wool is also proposed.

Description

entered is between 357 and 80".

According to the second aspect of this invention, a method of holding together two surfaces of mineral fiber material is created, which includes the steps of: a) provision of an element next to which the mineral fiber material is to be placed; p) the location of the mineral fiber material next to the element in such a way that the two surfaces of the mineral fiber material are closely adjacent to the corner or to the bent part of the element; c) providing a device comprising a strap having a first end and a second end with a first spike at the first end and a second spike at the second end, wherein the strap is flexible and each spike is substantially rigid; 4) inserting at least a portion of each of the first and second spikes into the mineral fiber material, and the spikes are positioned in such a way as to hold the tightly fitting surfaces of the mineral fiber material together by means of a belt.

According to a third aspect of the present invention, there is provided a structure comprising a member comprising a corner or a bent portion, in which a mineral fiber material is located adjacent to the member such that two surfaces of the material are in close abutment adjacent to the corner or bent portion of the member, characterized in that , which structure also includes: a device that includes a flexible belt having first and second ends with substantially rigid spikes at each end, wherein at least a portion of each of the first and second spikes is inserted into the mineral fiber material and held together by the belt the surface of the mineral fiber material, tightly fitting.

According to a fourth aspect of the present invention, there is provided a device that includes a strap having first and second ends with substantially rigid spikes at each end, wherein the strap is flexible and each spike is substantially rigid, for holding together two surfaces of mineral fiber material .

This invention has advantages, because when it is used, it provides a convenient, long-lasting and cost-effective way of solving the problem of air gaps between two surfaces of mineral fiber material in a surprisingly simple way. The method is particularly suitable for holding together two surfaces of mineral fiber material near a corner or bent part, since the problem of air gaps formation is more pronounced in such an area. An advantage of the device according to the invention is that it can be conveniently used to hold together a number of different types of mineral fiber material in a number of different locations.

The essence of the invention is explained in the drawings, where:

Figure 1 shows a vertical section of a hollow wall; Fig. 2 is a plan view of the device according to the present invention; Fig. 3 is a cross-section of the device according to the present invention, inserted into the mineral fiber material at the corner; in Fig. 4 - mineral fiber plates, fixed on the inner wall of the hollow wall, and the device according to the present invention, intended for insertion into them; Fig. 5 shows the device according to the present invention in working condition.

The device according to the present invention is particularly suitable for holding together two surfaces of heat-insulating material at the corner of a hollow wall. This preferred embodiment is described in more detail below.

A hollow wall usually contains: an inner wall 1 (see Fig. 1), usually made of brick or slag concrete blocks; thermal insulation layer 2, located next to the inner wall; and outer wall 4; where there is an air gap C between the thermal insulation layer 2 and the outer wall 4. The inner wall 1 forms part of the hollow wall and it is located inside the building, while the outer wall 4 forms its outer surface. The inner wall is usually built with steel rods, called "anchors", on which heat-insulating plates are attached. On each front surface of the inner wall, plates are usually attached, placing them next to the wall and so that they fit tightly to each other, as shown in Fig. 4 and 5.

The surfaces of the mineral fiber material, which are located so that they fit tightly near the corner, do not bond together. Usually the edges diverge, forming an air gap between them, which leads to a decrease in the efficiency of the material.

The device includes a belt 9 having a first end and a second end with a spike b at each end. The spikes are preferably bent at an angle and include a connecting part attached to the belt 8 and an insertable part 7, the angle between the parts being between 35" and 80", preferably between 45" and 70", more preferably between 55 "up to 65", and most preferably around 60".

When using the device, the inserted part of the spike is inserted into a piece of mineral fiber material. The first spike is inserted into one piece of mineral fiber material, and then the second spike is inserted into the second piece of material so that the belt is under tension and is thrown through the gap between the two pieces of mineral fiber material. The pieces are preferably placed at an angle to each other and next to the wall surfaces between which there is a corner.

The method according to the present invention includes, firstly, providing the element 1, next to which the mineral fiber material should be placed. Although the preferred embodiment is described in detail, where the element is the inner wall of a hollow wall, in practice the method can be implemented in cases where the element is any structure, next to which mineral fiber material is placed for any reason and which contains an angle or bent part. For example, the device and method according to the present invention can be used to thermally insulate a hot water tank, hot water pipes or industrial containers that need to be insulated.

The method according to the present invention, secondly, includes: the location of the mineral fiber material next to the element 1 in such a way that the two surfaces of the material are closely adjacent to the corner or bent part of the element.

The method according to the present invention additionally includes the steps of: providing a device 5 that includes a belt

9 having first and second ends with a first spike at the first end and a second spike 6 at the second end, wherein the strap is flexible and the spikes are substantially rigid; introducing at least part of the first and second spikes into the heat-insulating material made of mineral fiber, and the spikes are arranged in such a way that with the help of a belt 9 between them, tightly adjacent surfaces are held together.

Mineral fiber material 2 is usually presented in the form of plates, which can have any suitable dimensions. For example, plates can have a height ranging from 1 to 2 m, a width ranging from 0.5 to 2.0 m, and a thickness ranging from 0.06 to 0.25 m. A typical plate can have a height of about 1.5 m, a width of about

0.5 m and thickness - about 0.1 m. Mineral fiber is a type of fiber commonly used as an insulating fiber, and it can be manufactured in any suitable way. The mineral fiber material preferably has a specific density from 10 to 200 kg/m3, preferably from 20 to 100 kg/m3, and more preferably from 40 to 8Okg/m3.

The plates usually have the shape of a rectangular parallelepiped, and in the version where they are used for thermal insulation of a hollow wall, they have a length of approximately 1.5 m, a height of approximately 0.8 m, and a width of approximately 0.1 m.

Plates have: two large surfaces determined by length and height, one of which is the surface that is placed next to the element; two edges determined by height and width; and two other surfaces, defined by length and width, which form the top and bottom when the plate is next to the element.

In the preferred embodiment, the heat-insulating material is attached to the first front surface in such a way that its edge is located next to the corner on the edge of the surface (see Fig. 3, 4 and 5). The thermal insulation material adjacent to the second facing surface is installed so that it overlaps the corner at the edge of the second facing surface, to provide thermal insulation at the corner due to the contact of the thermal insulation panel adjacent to the first facing surface. Therefore, the surfaces that fit snugly at the corner are the edge of the material next to the first face and the larger surface of the material next to the second face.

Preferably, the heat-insulating material next to the second face surface is installed with an overlap of the corner at the edge of the second face surface by an amount equal to the width of the material next to the first face surface, so that a clear corner of the heat-insulating material is formed from the corner heat-insulating plates.

Corners in a hollow wall are usually about 90", but the invention is also applicable to different sizes of corners.

In an alternative embodiment, the plates to be placed at a corner may be specially designed for this purpose, for example, may have one end surface located at an angle of approximately 45" to the large surface to be located away from the wall surface. In this case, the first the corner plate is fixed next to the first front surface of the wall, and the second corner plate is fixed next to the second front surface in such a way that the edge of the first plate located at an angle fits snugly against the edge of the second plate located at an angle.

The worker, when using in practice the preferred embodiment of this invention, simply inserts the inserted part of one of the spikes into a piece of material next to one of the walls relatively close to the corner.

This piece is usually the piece located on the corner, but this piece can be a piece that fits snugly against the corner piece.

The worker then runs the belt around the corner, tightens the belt and roughly ensures that the surfaces of the mineral fiber material are in contact at the corner, then drives a second spike into the mineral fiber material next to the other face of the wall. This piece is usually a corner piece, but it can also be a piece closely adjacent to the corner piece.

So, the bending angle of the spike is such that it is possible to fasten the belt under tension in the mineral fiber material. If the angle is obtuse or straight, then the inserted part, the spike can be easily pulled out of the mineral fiber material, especially if the belt tension is applied to it. Thus, a spike having such an angle will not be fixed firmly enough. If the corner is very sharp (less than 35"), such a spike is difficult to use because a great deal of force is required to insert a second spike to maintain sufficient belt tension to hold the two surfaces of the mineral fiber material together at the corner. The angle is preferably 45" or greater. to 70", more preferably from 55" to 65", and most preferably about 60".

In the method according to the present invention, the spikes are preferably bent at an angle, but spikes that are not bent at an angle but are essentially straight can be used. In this case, the spikes are inserted into the mineral fiber material at an angle to the surface along which the belt will be in use, i.e. at an angle between 35" and 80", preferably between 45" and 70", more preferably between 55" and 65", and most preferably at an angle of about 60".

Spikes are essentially rigid. By this is meant that the spikes are rigid enough to retain their shape under the forces they are subjected to when used to hold together two surfaces of mineral fiber material. It is important to ensure the conditions under which the spikes can be securely fixed in the mineral fiber plates.

In contrast, the belt is flexible. This means that the belt can easily be bent by hand when in use and that it must take the shape of the angle at which it is used to hold the surfaces of the insulating plates together.

The belt is usually essentially inelastic and inextensible. This means that it must not stretch under the influence of the forces applied during its use when it is passed over the gap between the two surfaces of the mineral fiber material.

The inserted portion of the spike bent at an angle usually has a length in the range of 0.02-0.20m, preferably in the range of 0.04-0.08m, and most preferably in the range of 0.04-0.06m. The inserted part of the spike must be inserted through a large part of the thickness of the heat-insulating plate during use. Preferably, the length of the insulating part of the spike should approximately correspond to the thickness of the heat-insulating plate so that, given the angle at which the spike is inserted, the spike can be reliably inserted to a depth corresponding to most of the thickness of the plate. The inserted part of the spike is usually made pointed to ensure ease of insertion.

The connecting part of the spike is preferably similar in length to the inserted part, but can be shorter or longer.

In those cases where the spikes are substantially rectilinear, the spike has dimensions similar to the dimensions of the insert portion of the angled spike as defined herein.

The cross-section of the spike anywhere is usually roughly square and measures 3-8mm in height and thickness.

The length of the belt is preferably at least 0.15 m, since in use it usually has to pass from the heat insulating plate located next to one face surface, around the corner of the heat insulation to the heat insulating plates located next to the second face surface, as shown in Fig. 3-5 . The length of the belt is preferably 0.2-0.5 m, more preferably 0.25-0.35 m.

The belt can be of any shape, but preferably, a rectangular parallelepiped shape approximately 0.2-0.5m long, at least approximately 2mm high, such as 2-8mm, and 0.5-3.0mm thick. The height of the belt is usually the same along the entire length, but it can also be variable. In particular, it can be larger in the middle than at the ends. Preferably, the belt should support the weight of the mineral fiber material at the point, which is usually in the middle, where the two surfaces meet. The belt can have a height of up to 100 mm, but preferably the height is in the range of 2-50 mm, more preferably in the range of 5-20 mm.

The thickness of the belt and spikes are their respective minimum dimensions. The spikes are preferably substantially thicker than the belt.

In the preferred version, the belt and spikes are made of plastic. This is the preferred implementation, as the device is more durable and easy to use! economically efficient.

Spikes and belt can be separate elements attached to each other. However, it is preferable that the spikes and the belt are made as one unit. Preferably, they were made in a single process from the same material. Different stiffness can be achieved due to the different thickness of the spikes compared to the belt. In this case, usually the thickness of the spikes is 200-60090 of the belt thickness.

Plastic is mostly nylon.

The device is mainly made by injection molding. In this process, pellets or balls of plastic are melted using a combination of friction (created by a rotating screw) and heat, and then the melt is injected under high pressure into a mold. The mold is then cooled, and the finished product is removed from it.

Example

In the example of the device according to the present invention, the device is made entirely of Vakhatiy B 5T material

MS (ATM), which is nylon. The material properties are presented in Table 1.

Table

Kamatide V 57 MS

Polyamide 6 natural, medium viscosity, modified with high impact strength measured by O.A.M.)! 11111111 General HER

ABTM 0792 (AZTM American

Density g/cm society from testing 1.09 materials)

Water absorption (at 23"C relative humidity 5095) Impregnation during 24 Fo ATM 0570 1.03-1.3 h.)

Shrinkage during forming with ATM 0955 1.4-1.8

Mechanical 11111

Tensile strength MPa IZO 527 (I5O International »35 Organization for Standardization)

Breaking elongation oo IBO 527 »120

Bending strength MPa IBO 178,260

Bending modulus MPa IBO 178 1,800

Test of a sample with a notch for

Isodom (at 232C) J/m ATM 0256 150

Thermal ST

NOTE 1.2 MPa "b IBO 75 »50

Tests on the device Vika 49 es IZO 306 160 juton

Flammability test according to Rating | Hardness number by the CI method. 94. about IES 216 (IES International

SOM MIVE TE5T 2mm What; IES 695-2-1 -

Electrical products

STI Volt IES 112 240

Dielectric strength kV/mm ATM 0149 18

The values presented are based on the evaluation of laboratory samples, and these values are within normal specifications.

The data is based on the general experience of the authors and is presented in good faith by them, but the authors do not accept responsibility for factors beyond their knowledge or control. 1 O.A.M. - In a dry state during molding

The height of the belt was 5 mm, thickness - 1.5 mm, length - 235 mm. At each end of the belt was a spike; spikes were bent at an angle; spikes contained an insertable part and a connecting part by which they were attached to the belt. The angle between the parts was 60". The length of the connecting part was 40mm, the height was 5mm, the width was 4.3-3mm. The length of the insertion part of each spike was 5mm, and at the end where the insertion part was attached to the 'connecting part, it was essentially the same width and height as the connecting part, and was pointed from this place at an angle of 5", that is, the other end of the inserted part was narrower and shorter.

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