In order to meet the requirment of producement improved Butt Joint Radioscopy Procedure, and required satifac-tory effects.

为了满足生产需要对椭圆封头拼接焊缝射线探伤工改,并取了满意效。

This paper gives the calculation method for the standard parameters such as internal surface area,volume and quality etc.of toriconical head.

给出了折边锥形封头内表面积、容积和质量等标准参数的计算方法。