Abstract: The present invention relates to a device for assembly by brazing an end cover onto a cylindrical body, said end cover presenting a circular peripheral rim via which said cover is brazed onto a part of one of the end surfaces of the cylindrical body, this device being characterized in that the above-mentioned cover is shaped in such a way that, on the above-mentioned end surface of the cylindrical body, the circular peripheral part of the above-mentioned cover exerts a compressive stress, after brazing, on substantially the whole contact area between the end surface of the cover and the end surface of the cylindrical body.

Abstract: The present invention relates to a device for assembly by brazing an end cover onto a cylindrical body, said end cover presenting a circular peripheral rim via which said cover is brazed onto a part of one of the end surfaces of the cylindrical body, this device being characterized in that the above-mentioned cover is shaped in such a way that, on the above-mentioned end surface of the cylindrical body, the circular peripheral part of the above-mentioned cover exerts a compressive stress, after brazing, on substantially the whole contact area between the end surface of the cover and the end surface of the cylindrical body.

Abstract: The present invention relates to an assembly method by reactive brazing of a first metallic element such as an end cover plate of a vacuum cartridge with a second element such as the cylindrical body of said cartridge, said second element comprising an ion-covalent oxide at least at the surface by means of an alloy called added alloy designed to constitute a liquid brazing alloy designed to wet the two respectively metallic and ion-covalent oxide surfaces to be assembled of the above-mentioned two elements, said brazing alloy containing titanium and said metallic element containing nickel.