在一定法兰连接螺栓预紧力作用下，法兰密封泄漏明显减少，从而解决了热交换器封头法兰密封失效的问题。
Under certain pre - tension from flange joint bolt, leakage of flange sealing had an obvious decrease, thus resolving sealing failure in cover flange of heat exchange.
通过应力分析，给出了带法兰的无折边球形封头的计算方法。
By stress analysis, this article gives a calculation method on a spherical cap joining the flange ring by welding.
本文用半解析半离散的方法，对具有椭球封头的法兰连接圆筒压力容器进行了分析。
In the present paper the analysis of cylindrical pressure vessel with ellipsoidal closures and bolted flanged connections is performed by using analytical as well as discrete method.
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