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

为满足生产需要对椭圆封头拼接焊缝射工艺进行改进,并取满意效果。

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

本文给边锥形封头内表面积、容积和质量等标准参数的计算方法。