The results obtainded from SEM and chemical analysis showed that the leakage in stainless steel coil was attributed to pitting. Protective measures were proposed.

• 应用扫描电镜、化学分析法,对泄漏的盘管进行分析,结果表明该不锈钢盘管泄漏是由于点蚀造成。探讨了防护对策。