由于新工艺不需立车，为特大直径法兰的制造开辟了新途径。
This develops a new way for manufacturing large flange because the capacity limitation of vertical lathe size will be unneccesary to be considered.
介绍真空设备法兰采用大直径O形环橡胶自紧式密封（不用螺栓和螺母）的设计计算及其应用效果。
The design calculation of the large O ring rubber self energized seal (without bolt and nut )used for the vacuum equipment and its application results are introduced.
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