Abstract: A method and a device for separating a wound tube (1) which includes interlocking windings (11, 12, 13, 14) of a metal strip (2) are provided, the wound tube (1) is welded in a predetermined axial region (10) and is then severed within the region (10) in a radial plane (6). The method furthermore defines that the wound tube (1) is axially compressed in the predetermined region prior to welding, such that the windings (11, 12, 13, 14) bear against one another in the region (10), and the welding is carried out along a predetermined number of turns (11, 12) in the region (10).

Abstract: An attachment connection is provided including a thin-walled hose line connected with a carbon-containing attachment part of a carbon-containing iron alloy with a carbon component C >0.5% and a weld connection is provided between the hose line and the attachment part.

Abstract: A method and a device for separating a wound tube (1) which includes interlocking windings (11, 12, 13, 14) of a metal strip (2) are provided, the wound tube (1) is welded in a predetermined axial region (10) and is then severed within the region (10) in a radial plane (6). The method furthermore defines that the wound tube (1) is axially compressed in the predetermined region prior to welding, such that the windings (11, 12, 13, 14) bear against one another in the region (10), and the welding is carried out along a predetermined number of turns (11, 12) in the region (10).

Abstract: An attachment connection (1) for connecting thin-walled hose lines (2) to a carbon-containing attachment part (3), in particular made of cast iron, in which the hose line (2) is secured on the attachment part (3) by welding. This makes it possible to achieve an in particular gas-tight connection between the hose line (2) and the attachment part (3) and, in addition to advantageous production costs, this connection is requires only a small amount of installation space, which, for example in the case of the hose line (2) being configured as a bellows, allows an increase in the number of bellows corrugations and thus, with the same amount of installation space, an increase in flexibility associated with a longer service life.