CZ2007244A3 - Process for manufacturing a panel from airtight materials - Google Patents

Abstract

A method for producing a cabinet panel that allows the carrier plate and the faceplate made of airtight material to be glued over the entire surface by adhesives based on polyurethane or silicone so that masking elements are fixed to each other on the surface of the carrier and / or faceplate for adhesive application. glue is applied to the entire surface, then masking elements are applied, and glue is applied to the entire surface, after which the masking elements are removed and the faceplate and carrier plate are joined together.

Description

Technical field

The invention relates to a method of manufacturing a panel of airtight materials by gluing a carrier plate, in particular of metal or plastic, and a face plate, in particular of metal, glass or decorative foil.

BACKGROUND OF THE INVENTION

Panels for the construction of elevators' cabins, interior spaces of public transport vehicles and the like are made of metal, wood, plastic and the like supporting plates on which, for aesthetic reasons, face plates such as stainless steel sheet, glass, mirror or laminate decorative foil . For safety reasons, the faceplate must be perfectly connected to the support plate in case of breakage and / or release. For this purpose, adhesives based on polyurethane or silicone can be used, with which a sufficiently rigid and at the same time elastic joint can be obtained, allowing the gluing of materials with different thermal expansion. However, these adhesives need air humidity to cure and at the same time carbon dioxide is released from the adhesives as they cure. In the case of surface gluing of large panels of airtight materials, the adhesive does not have sufficient air humidity to properly cure and the carbon dioxide released accumulates at some points and may cause the faceplate to rupture or bulge.

SUMMARY OF THE INVENTION

These disadvantages are overcome by a method of manufacturing a panel of airtight materials by gluing a carrier plate, in particular of metal or plastic, and a face plate, in particular of metal, glass, mirror or decorative film, which is based on the surface ready to apply the adhesive, the camouflage elements are spaced apart from each other, whereupon the entire aa · a · aa · aa aaa aaa aaa

- aa ·· * aa and aaa the surface is applied with glue, then the masking elements are removed and the face plate and the support plate are joined together.

According to a preferred embodiment, the carrier plate is provided with through-vent holes before the adhesive application preparation. It is also advantageous to fix the masking elements to a position in which they at least partially overlap the ventilation openings, preferably so that the fixed masking elements form a grid whose intersections cover the ventilation openings.

It is also preferred that a glue based on polyurethane or silicone is used as the adhesive.

DETAILED DESCRIPTION OF THE INVENTION

In one exemplary embodiment, the support plate is of aluminum or steel sheet and the display plate is a mirror. All gluing materials are allowed to reach room temperature before gluing, and should be stored together for at least 24 hours. If necessary, the dimensions of the carrier plate and the face plate can be adjusted by cutting or cutting. A grid of vent holes is drilled into the support plate, for example a square grid of vent holes approximately 10 mm in diameter and spaced at least 150 mm apart. The holes are cleaned, any other irregularities on the glued surface of the carrier plate are sealed and sanded to remove minor irregularities, metal oxidation layers and the like. Subsequently, both surfaces to be bonded are degreased, for example on a modified flat glass washer. After the degreasing agent has been vented, the primer recommended by the manufacturer of the adhesive used should be applied to both bonded layers, particularly carefully at the edges of the bonded surfaces. After the primer has dried, masking elements, which in this exemplary embodiment are masking tapes of a width of 20 mm, are fixed to the bonded surface of the base plate, forming a square mesh on the bonded surface, and each intersection of the square mesh covers one vent. Subsequently, a layer of polyurethane or silicone adhesive is applied to the bonded surface of the carrier plate with a notched trowel, such that a layer of polyurethane or silicone adhesive is applied. In order to ensure sufficient flexibility of the joint and to avoid the rupture of the carrier plate or the face plate due to different thermal expansion of the carrier plate material and the face plate material. Thereafter, the masking elements are removed to form a network of vent channels in the applied adhesive, and the support plate and the substrate plate are bonded together. The joint is then pressed by means of a roller press, thereby expelling excess adhesive and air. The glued panel is pulled under the press for at least 24 hours and then the panel can be carefully handled. A perfectly strong joint is formed after about 120 hours. In carrying out the process according to the invention, it is necessary to maintain the cleanliness of the workplace and the environment and wear textile gloves when handling glued materials.

In another exemplary embodiment, the carrier plate is of plastic and the face plate is of laminating film. In this embodiment, the support plate is not provided with ventilation openings, as the film-face plate could fall through in the area of the openings and thus reduce the aesthetic value of the panel. The masking elements forming the ventilation ducts can then be fixed, for example, to form parallel strips of 20 mm width with a spacing of at least 150 mm from each other.

The carrier plate may also be a sandwich panel of two metal plates between which a corrugated metal plate is fixed.

Claims (5)

PATENT CLAIMS Method for manufacturing a panel of airtight materials by gluing a carrier plate, in particular metal or plastic, and a face plate, in particular a metal, glass, mirror or decorative foil, characterized in that the surface plate and / or the face plate are prepared on the surface For applying the adhesive, the masking elements are spaced apart, whereupon the adhesive is applied to the entire surface, then the masking elements are removed and the faceplate and support plate are joined to each other. Method according to claim 1, characterized in that the carrier plate is provided with through-vent holes before the adhesive application. Method according to claim 2, characterized in that the masking elements are fixed in a position in which they at least partially overlap the ventilation openings. Method according to claim 2 or 3, characterized in that the masking elements are fixed in the form of a grid whose intersections cover the ventilation openings. Method according to at least one of Claims 1 to 4, characterized in that the adhesive used is a polyurethane or silicone based adhesive.