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本文详细介绍了压力容器大开口接管区域设计计算步骤，并针对载荷、法兰、内拐角圆 弧等因素对大开口接管边缘应力分布的影响进行分析．
This paper introduces in detail the design and calculation steps of the large opening of the pressure vessel, and analyzes the influence of load, flange and inner corner arc on the stress distribution of the large open joint.