| 摘要 |
The pressure vessel (1) made of sheet steel for an electrically heated water heater has a cylindrical vessel casing (2), the edge zones (3, 4) of which are bent round inwards in the manner of a bead. The ends (5, 6) of the pressure vessel (1) are constructed in the form of hemiellipsoidal plates, which are welded by their edge to the beaded edge zones (3, 4) of the vessel casing (2) and the hemiellipsoid of which merges into the edge zones (3, 4) of the vessel casing (2). <IMAGE>
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