核电厂阀门密封面常见缺陷及焊接修复策略
Plant Maintenance Engineering(2023)
Abstract
核电厂阀门内漏是重要的系统边界失效问题,阀门密封面缺陷是导致阀门内漏的主要原因.结合实际案例,解析核电厂阀门密封面常见缺陷类型及成因,并给出应对策略;根据焊接修复密封面缺陷的特点和难点,提出焊接修复密封面缺陷的原则;针对常见密封面零件给出焊接修复策略,特别提出制造密封副硬度差,可以兼顾检修便利性和延长阀门使用周期.
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