单曲率多面壳体胀球工艺采用拼装焊接单曲率拼瓣成封闭壳体然后胀形制造球形容器 ,具有良好的发展前景。本文试图利用LBB概念解决该工艺加载过程中的安全问题 ,其基本思想是控制胀形加载速率 ,使压力介质进入多面壳体的速率小于压力介质 ,从而满足LBB准则的裂纹泄漏的速率。初步的研究结果表明该方法是可行的。 Single rate multi-faceted shell expansion ball process using the assembly of welding single curvature spell petals into a closed shell and then bulging the manufacture of spherical containers, has good prospects for development. This paper tries to use LBB concept to solve the safety problem during the loading process. The basic idea is to control the rate of bulging, so that the velocity of pressure medium entering the multi-shell is lower than that of pressure medium, so as to satisfy the LBB criterion. Preliminary results show that this method is feasible.