Other

Elpatronic Ag

Paul Meier

Wolfgang H Weil

Martin Kaul

Hanspeter Fankhauser

Andres Lanz

Max Vogt

A frame-like roller carrier (40) which defines a sizing plane (C) normal to the longitudinal axis (A) of the can bodies is arranged in relation to awelding device (24) in such a manner that the sizing plane (C) coincides at least approximately with a welding plane (B) defined by the welding device. A plurality of sizing rollers (41) are mounted on the roller carrier (40), each for rotation about a roller axis (E) lying in the sizing plane (C). The sizing rollers (41) form a rigid ring of rollers through which the can bodies (1) can be moved. The roller carrier is divided into two half-frames (40), each of which carries a plurality of sizing rollers (41). The two half-frames (40) are adjustably supported on a common bridge (31). At least one of the half-frames (40) is connected to the bridge (31) by an adjusting drive (37) for the adjustment of the sizing rollers (41) carried by it. Consequently, the sizing tool (30) can be adjusted with little labor, for example if the overlapping width of the can longitudinal edges to be welded to one another has to be altered.

Sizing tool for a machine for the longitudinal seam welding of rounded

In an apparatus and a method of at least partially suppressing oxidation of can components or the like during resistance roller welding with the aid of an inert gas, the steps include welding the can components to one another, so as to obtain a hot welding seam, supplying the inert gas to the hot welding seam so as to envelop it at least partially, and to create a region of the inert gas in contact with the surrounding atmosphere, so that oxidation of the hot welding seam is at least partially suppressed.

Apparatus and method to suppress oxidation during resistance welding

Apparatus to suppress oxidation during resistance welding

Growing community of inventors

Widen, Switzerland

Paul Meier