CAP1400钢制安全壳现场组装焊接质量控制

Welding Quality Control of the Containment Vessel of CAP1400 Nuclear Power Plant

从加强核电现场焊接质量管控的角度出发,通过对CAP1400压水堆核电钢制安全壳现场组装焊接过程中质量控制的论述,提出了一套较为全面的现场焊接质量控制流程。从母材及焊材的选择为出发点展开分析,结合现场焊接实际状况,对焊接质量控制容易忽视的薄弱环节,提出了具有针对性的处理方案,提高了钢制安全壳拼装过程中的焊缝质量,同时对现场产生的不符合项处理流程的优化提出了改进意见。

From the purpose of make the welding quality better in nuclear power plant construction. The text describes some main points of containment vessel welding process and puts forward a comprehensive procedure of site welding quality control. We start our research from the choice of the base material and the solder, and put forward some handing methods considering the actual conditions when the welding procedures are carried out. These methods are pointed out at some easily ignored weaknesses when the welding inspector checking the quality of weld seam. It has raised the weld seam quality of the containment vessel. In the meantime, the text also puts forward related ideas of improving the NCR flow. Those can provides precious experiences for the follow-up projects.