| 冷凝器换热管失效分析 |
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| 引用本文： | 曹颖,杨玉强,江春芹. 冷凝器换热管失效分析[J]. 理化检验(物理分册), 2001, 38(10): 442-443 |
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| 作者姓名： | 曹颖 杨玉强 江春芹 |
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| 作者单位： | 淄博市新材料研究所,山东,255040 |
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| 摘 要： | 采用宏观检查，化学分析和金相检验等方法对冷凝器换热管报废原因进行了分析，结果表明，由于不锈钢焊接管在含有氯离子的冷却水中形成钝化－活化微电池，致使不锈钢焊接管腐蚀而报废，采取改换材料为18－8型无缝奥氏体不锈钢管和改良冷却水等措施，取得良好效果。
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| 关 键 词： | 钝化 活化微电池 焊接管 腐蚀 冷凝器 换热器 失效分析 |
| 文章编号： | 1001-4012(2001)10-0442-02 |
| 修稿时间： | 2000-05-18 |
FAILURE ANALYSIS OF RECUPERATOR TUBE OF CONDENSER |
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| CAO Ying,YANG Yu qiang,JIANG Chun qin. FAILURE ANALYSIS OF RECUPERATOR TUBE OF CONDENSER[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 2001, 38(10): 442-443 |
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| Authors: | CAO Ying YANG Yu qiang JIANG Chun qin |
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| Abstract: | Through visual examination, chemical analysis and metallographic examination, it was concluded that the failure of recuperator pipe was caused by pitting corrosion of the stainless steel welded pipe, which was formed by the activating-inactivating microcell since the pipe was immersed in cooling water containing Cl -. Pipe failure was avoided by substituting welded pipe with seamless steel tube and by improving the quality of cooling water. |
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| Keywords: | Passivation Activation inactivation microcell Welded tube Corrosion |
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