CPR1000反应堆压力容器大面积不锈钢堆焊工艺探讨
stainless steel cladding technology on the reactor pressure vessel of CPR1000 project
刘鸣宇，吴义党，杨志鹏
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作者单位：中广核工程有限公司
中文关键字：反应堆压力容器；堆焊；控制
英文关键字：Reactor pressure vessel, cladding, control
中文摘要：CPR1000是中广核具有自主知识产权的二代加核电站技术路线，反应堆压力容器作为与核电站同寿命的核心设备，其全部内表面需要堆焊不锈钢耐腐蚀层，大面积堆焊质量将直接影响该设备的质量及制造进度。从反应堆压力容器大面积不锈钢堆焊采用的焊接工艺入手，分析了带极埋弧堆焊和带极电渣堆焊两种工艺的优缺点、实际应用情况和关键控制点，并为今后大面积堆焊工艺的发展提出新的探索方向。
英文摘要：The cladding with stainless steel on reactor pressure vessel (RPV) is the basic and key operation in the RPV manufacturing processes. The cladding quality can affect the schedule and quality of follow-up operations directly. China Guangdong Nuclear CPR1000 project is the second generation nuclear power plant with the intellectual property of CNPEC, the inner surface of RPV should be cladded to avoid corrosion. Now strip submerged arc cladding and strip electroslag cladding are adopted by CPR1000 project, this paper will describe the two cladding technology advantage and disadvantage, process and the key quality control point. Ｐroviding of some information for the improvement of RPV inner surface cladding technology.