SEALING MATERIAL, ASSEMBLY AND USE OF A SEALING MATERIAL

Abstract

The invention relates to a sealing material (1) having a first layer (2) which is formed by a textile fabric made of synthetic fibers (22) and has a thickness d1, and a second layer (3) which is formed by an adhesive material and has a thickness d2, wherein the two layers (2, 3) of the sealing material (1) penetrate one another when a force is applied perpendicularly to the extension of the layers (2, 3), such that a sealing layer (1′) is formed having a thickness D where 0.9.Math.d1≤D≤1.1.Math.d1.

Claims

1. A sealing material (1), having a first layer (2) which is formed by a textile fabric made of synthetic fibers (22) and has a thickness d1, and a second layer (3) which is formed by an adhesive material and has a thickness d2, wherein the two layers (2, 3) of the sealing material (1) penetrate one another when a force is applied perpendicularly to the extension of the layers (2, 3), such that a sealing layer (1′) is formed having a thickness D where 0.9.Math.d1≤D≤1.1.Math.d1.

2. The sealing material (1) according to claim 1, wherein the following applies: 0.5 mm≤D, d2, d1≤2 mm.

3. The sealing material (1) according to claim 1, wherein the synthetic fibers (22) are in the form of polyester fibers.

4. The sealing material (1) according to claim 1, wherein the adhesive material is in the form of an adhesive based on butyl rubber and/or epoxy resin.

5. The sealing material (1) according to claim 1, wherein the sealing material (1) is arranged in portions on a carrier material and each portion (25) has at least one preformed hole (4) which extends through the first layer (2) and the second layer (3).

6. The sealing material (1) according to claim 1, wherein the sealing material (1) is arranged in portions on a carrier material and the portions (25) are separated from one another by free regions (26) on the carrier material.

7. The sealing material (1) according to claim 1, wherein the carrier material is formed of coated paper.

8. The sealing material (1) according to claim 1, wherein the textile fabric has a mesh size M of 0.5 mm to 2 mm.

9. An assembly (30) having at least two components (6, 8) interconnected by a screw connection, at least one sealing element made of a sealing material (1) according to claim 1, wherein the sealing element is arranged between the interconnected components (6, 8) around a screw hole (10, 12).

10. The assembly (30) according to claim 9, wherein the at least two components (6, 8) are in the form of metal sheets.

Description

[0031] FIG. 1 schematically shows a cross section through a sealing material according to an embodiment of the invention.

[0032] FIG. 2 schematically shows a cross section through an assembly of two components interconnected by a screw connection.

[0033] FIG. 3 is a plan view of a first layer of a sealing material according to an embodiment of the invention.

[0034] FIG. 4 is a schematic plan view of a sealing material according to an embodiment of the invention.

[0035] FIG. 1 schematically shows a sealing material 1 according to an embodiment of the invention. The sealing material has a first layer 2 which is formed by a textile fabric made of synthetic fibers. The first layer 2 has a thickness d1. A second layer 3, which is formed of an adhesive material and has a thickness d2, is arranged on the first layer 2. In the embodiment shown, the thicknesses d1 and d2 are approximately the same, in particular the thickness d1 is 0.5 to 0.6 mm and the thickness d2 is 0.6 to 0.7 mm. In particular, the thickness d2 can be designed to be minimally larger than the thickness d1, so that it is ensured that the spaces between the synthetic fibers of the first layer 2 can be completely filled with adhesive material.

[0036] In FIG. 1, the sealing material 1 is shown in cross section. The sealing material 1 can be, for example, disk-shaped and in particular have a rectangular, square or round contour. The sealing material 1 has a hole 4 through which a screw can be passed when the sealing material 1 is used.

[0037] FIG. 1 shows the sealing material 1 in a state before its intended use. In this state, the layers 2, 3 are stacked substantially separately from one another and do not penetrate one another or only slightly penetrate one another.

[0038] FIG. 2 shows an assembly 30 composed of a first component 6 and a second component 8, the components 6, 8 being metal sheets, for example. The components 6, 8 are intended to be interconnected by means of a screw 20, which is passed through screw holes 10, 12 in the components 6, 8 and then tightened. This screw connection is intended to be sealed against penetrating moisture, for example. For example, a moist environment could be arranged adjacently to a first main surface 14 of the first component 6, while a dry environment could be arranged adjacently to a second main surface 16 of the second component 8.

[0039] In order to prevent the penetration of moisture into the screw holes 10, 12 and in particular the penetration of moisture from one side of the assembly 30 to the other side, the screw connection is sealed by means of the sealing material 1′.

[0040] In the embodiment shown in FIG. 2, the sealing material 1′ has a different state than in FIG. 1. In the state shown in FIG. 2, the layers 2, 3 were already interconnected by the action of a force when the screw 20 was tightened, the adhesive material of the second layer 3 having penetrated into the spaces in the textile fabric of the first layer 2. The sealing material 1′ now has a thickness D which substantially corresponds to the thickness d1 of the first layer 2.

[0041] FIG. 3 is a plan view of the textile fabric 24 of the first layer 2. In the embodiment shown, the textile fabric 24 is formed of fibers 22, in particular polyester fibers, which are interwoven, the woven fabric having a mesh size M which, in the embodiment shown, is 1 mm. The spaces between individual fibers 22 are square in the embodiment shown, i.e., the fibers 22 are arranged so as to have the same spacing in both dimensions. In one embodiment, the individual polyester fibers have a diameter of 320 μm and this results in a thickness d1 of the first layer 2 of 585 μm.

[0042] FIG. 4 is a plan view of a composite of individual portions 25 of sealing material 1. The sealing material 1 is arranged on a carrier material, for example coated paper, which, however, is not explicitly shown in FIG. 4. The first layer 2, which has the textile fabric, is designed to be somewhat wider in the embodiment shown than the second layer 3, which is arranged on said first layer and which has the adhesive material. The sealing material 1 is divided into individual portions 25, between each of which free regions 26 are arranged in order to be able to better receive the individual portions 25. The carrier material is exposed in the free regions 26. Each portion 25 has a hole 4 and is thus provided for sealing a screw hole.

[0043] In the embodiment shown, the portions 25 are almost square. This can be produced particularly easily and without waste. However, it is also possible to have a round contour, for example.

LIST OF REFERENCE SIGNS

[0044] 1, 1′ sealing material [0045] 2 first layer [0046] 3 second layer [0047] 4 hole [0048] 6 first component [0049] 7 second component [0050] 10 screw hole [0051] 12 screw hole [0052] 14 first main surface [0053] 16 second main surface [0054] 20 screw [0055] 22 fiber [0056] 24 textile fabric [0057] 25 portion [0058] 26 free region [0059] d1 thickness [0060] d2 thickness [0061] D thickness [0062] M mesh size