由于椭球形封头的曲率半径是连续变化的,因此它的应力分布较碟形封头均匀且较小,同时形状也较美观。因此,椭球形封头在化工、石油、空分等工业部门中得到广泛应用。现在,生产容器设备的厂家,在生产冲压椭球形封头时,对于所下坯料直径的标法各有不同,很不一致。如图1所示的椭球形封头,有的用下面的经验公式计 Since the radius of curvature of the ellipsoidal head is continuously changing, its stress distribution is uniform and smaller than that of the saucer. At the same time, its shape is more aesthetically pleasing. Therefore, the ellipsoidal head in the chemical, petroleum, air separation and other industrial sectors have been widely used. Now, the manufacturer of the container manufacturing equipment, in the production of stamping ellipsoidal head, the blank for the next under the standard diameter of different, very inconsistent. Ellipsoid head shown in Figure 1, some with the following empirical formula