摘要
U型换热器使用后,拉杆和定距管(UNS N06600)严重腐蚀,采用宏观分析、金相分析、电镜能谱扫描分析等分析方法,对U型换热器使用后腐蚀情况进行分析,发现产生腐蚀的主要原因是材料表面存在铜离子污染和使用工况恶劣的综合作用。因此,在UNS N06600材料的设备制造过程中应严禁与含铜材料的接触,并且设备运行应严格按照工艺要求进行。
In the operation of the U-shaped heat exchanger,the tie rod and the distance tube(UNS N06600)are severely corroded.Some analysis methods such as macroscopic analysis,metallographic analysis and electron microscopy scanning analysis are used to analyze the corrosion of the U-shaped heat exchanger in the use.The corrosion is mainly caused by the copper ion contamination and the service conditions.Therefore,the contact with copper-containing materials should be strictly prohibited during the equipment manufacturing process of UNS N06600 materials,and equipment operation should be carried out in strict accordance with the process requirements.
作者
严彬
YAN Bin(Jiangsu Sunpower Heat Exchanger&Pressure Vessel Co.,Ltd.,Nonferrous Equipment Plant,Nanjing 211111,China)
出处
《机械制造与自动化》
2019年第6期78-81,共4页
Machine Building & Automation
