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

为了满足生产需圆封头拼接焊缝射线探伤工艺进行改进,并取了满意效果。

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

本文给出了折边锥形封头内表面、和质量等标准参数的计算方法。