| 摘要 |
The aim of the invention is to fix a valve piece encompassing a connecting shell and a valve (62) to a can jacket (24). Said aim is achieved in a welding step in which the connecting shell of the valve piece is fastened to the can jacket (24) as a top closing element (31a) along with the valve (62) by means of laser welding. According to the invention, a shoulder-shaped constricted cross section is embodied on the can jacket (24) towards the top face (24a) thereof while the border area of the closing element (31a) which rests against said shoulder (60a) is tightly pressed thereagainst and is sealingly joined to a laser seam (42), the top face (24a) of the can jacket (24) lying inside the can. The inventive method dispenses with the need to configure or fix a valve seat while eliminating the technically complex crimping step, thus also dispensing with the need for an installation used for crimping connecting shells in the filling station. The invention makes it possible to produce also aerosol cans whose diameter is smaller than the diameter of a standard valve seat. |
