【作者】 吴晓峰； 徐娜； 时军波； 马坤； 马洪涛； 于晓梅； 臧启山；

【Author】 WU Xiao-feng~1,XU Na~1,SHI Jun-bo~1,MA Kun~2,MA Hong-tao~3,YU Xiao-mei~4,ZANG Qi-shan~5 (1.Shandong Analysis and Test Center,Jinan 250014,China; 2.Cangzhou Normal Specialised Postsecondary College,Cangzhou 253600,China; 3.Shandong Supervision and Inspection Institute for Product Quality,Jinan 250014,China; 4.Wangdi Central Junior Middle School Laiyang 265200,China; 5.Institute of Metal Research,CAS,Shenyang 110016,China)

【机构】 山东省分析测试中心； 沧州师范专科学校； 山东省产品质量监督检验研究院； 山东省莱阳万第中心初级中学； 中国科学院金属所；

【摘要】 对扁管式钢制散热器局部漏水问题进行了分析。通过宏观检查、金相检验、化学成分分析和腐蚀产物分析确定了钢制散热器局部漏水是氧腐蚀的结果,水中Cl~-的存在加速了氧的局部腐蚀,造成点蚀穿孔。建议采取减少散热器水里的氧含量,增加钢制散热器的壁厚及加强水质管理等措施。更多还原

【Abstract】 Carefully examination was made by macroscopic observation,microstructure test,Chemical compositions analysis and corrosion products analysis for a steel-made flat tube radiator,which leaked after one year use.It was confirmed that the corrosion failure of the flat tube radiator was caused mainly by oxygen corrosion,Cl~- existed in the radiator water promoted local corrosion as wel las pits formation.Some suggestions was given to prevent the corrosion failure of the radiator.更多还原