Patent ID: 6447631
Filing Date: 2002-09-10
Classification: C09J

Abstract:
A process for joining components of rail-borne vehicles by bonding including joining a preformed first component to a shape-adapted second component by means of the two-dimensionally separate application of adhesives with different reaction characteristics until a strength sufficient for handling is reached wherein the first component is brought into the position for joining and fixed in the form of use in the usual manner, the process comprising the steps of:applying an adhesive body having the property of being quick-bonding and maintaining a defined joining layer thickness to a selected and two-dimensionally limited first joining surface of the first component and/or of the second component; applying a defined amount of an adhesive layer having the property of curing more slowly and flowing slowly during joining, but being flowable and capable of wetting, to selected second joining surfaces of the first component and/or of the second component; positioning the two components to be joined in a desired three-dimensional arrangement in relation to one another and bringing the two components close to one another and joining the two components to one another under the effect of a joining pressure applied in the area of the selected first joining surface, wherein the adhesive body connects the first component to the second component in the area of the first joining surface at a joining space predetermined by the defined joining layer thickness of the adhesive body with such a first joining strength that removal and moving of a pre-joined assembly unit is possible after the joining process without any change in the shape and position of the components, and the adhesive layer, whose amount as well as flowability and wetting ability are such that the adhesive body applied can contact the other component in the area of the joining surfaces, fills out the joining space left between the first and second components in the area of the second joining surfaces; providing the assembly unit subsequently in the joined position or in a resting position or included in a further technological process, where a second joining strength brought about by the curing of the adhesive layer is reached.