国内核电厂典型螺栓断裂缺陷分析
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摘要
针对国内核电厂几起典型螺栓断裂缺陷,从螺栓结构、工作环境、运行条件等方面对螺栓断裂原因进行分析。根据原因分析结果,提出通过改进螺栓型式、表面处理工艺优化、螺栓安装工艺优化等措施控制螺栓质量,确保重要设备螺栓满足现场实际工作需要。
In view of several typical bolt fracture defects in domestic nuclear power plants, the causes of bolt fracture are analyzed from the aspects of bolt structure, working environment and operating conditions. According to the analysis results,the improvement measures of bolt quality control are put forward by bolt structure improvement, surface treatment process optimization and bolt installation process optimization. These improvement measures are used to ensure that the bolts of important equipment meet the actual work needs on site.
In view of several typical bolt fracture defects in domestic nuclear power plants, the causes of bolt fracture are analyzed from the aspects of bolt structure, working environment and operating conditions. According to the analysis results,the improvement measures of bolt quality control are put forward by bolt structure improvement, surface treatment process optimization and bolt installation process optimization. These improvement measures are used to ensure that the bolts of important equipment meet the actual work needs on site.
引文
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[6]刘帅,朱磊.有关不锈钢应力腐蚀开裂的研究[J].价值工程,2018(20):129-130.
[2]孙智,江利,应鹏展.失效分析[M].北京:机械工业出版社,2005.
[3]孙训方,方孝淑,关来秦,等.材料力学(I)[M].北京:高等教育出版社,2009.
[4]蔡秀光.应力腐蚀的危害及其控制[J].化学工程与装备,2006(2):37-39.
[5]马成,彭群家,韩恩厚,等.核电结构材料应力腐蚀开裂的研究现状与进展[J].中国腐蚀与防护学报,2014,34(1):37-45.
[6]刘帅,朱磊.有关不锈钢应力腐蚀开裂的研究[J].价值工程,2018(20):129-130.