Discussion of Time of Ultrasonic Examination for Low Alloy Steel Forgings of Reactor Pressure Vessels
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摘要: 为了确定反应堆压力容器(RPV)钢锻件最佳超声检测时机,本文采用分析的方法明确了RCC-M规范要求是对RPV低合金钢锻件在最终精加工后才进行超声检测。通过研究超声检测机理并结合其他标准的规定,综合对此时机的合理性进行了探讨,提出了更为合理的检测时机应为对RPV低合金钢锻件性能热处理之后、精加工前进行。
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关键词:
- 反应堆压力容器(RPV) /
- 低合金钢锻件 /
- 超声检测时机
Abstract: To determine the most appropriate stage of ultrasonic test for reactor pressure vessels(RPV) steel forgings, this paper confirmed that RCC-M requires the ultrasonic test be done after final finishing, and analyzed the rationality of the requirement based on the ultrasonic examination mechanism, referring to other norms. It is proposed that a more appropriate stage of ultrasonic examination would be after the heat treatment for mechanical properties and before final finishing. -
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