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一、前言护环是电站设备中的重要零件,在高转速下工作,承受极其复杂的高应力,因此,在机械性能方面要求很高。为了防止运转时产生涡流,影响电机效率,材料必须采用无磁奥氏体钢,通常为50Mn18Cr4。本文拟用数理统计方法对50Mn18Cr4护环钢在技术条件中所规定的成分含量再作最佳选择,并分析在强化工艺过程中变形量ε与σ(0.2)和δ_5的相关关系。
I. Introduction The guard ring is an important part of the power plant equipment, work at high speed, withstand extremely complex high stress, therefore, demanding in terms of mechanical properties. In order to prevent eddy current generated during operation, affecting the motor efficiency, the material must be non-magnetic austenitic steel, usually 50Mn18Cr4. This article intends to use mathematical statistics method for the 50Mn18Cr4 retaining ring steel in the technical conditions of the ingredients and then the best choice, and analysis of the deformation process in the deformation ε and σ (0.2) and δ_5 correlation.