PFA涂层在氧化铝蒸发器中的应用  

Application of PFA Coating to Alumina Evaporator

作　　者：魏安安[1] 申登峦 王瑶[1] 

机构地区：[1]常州大学机械工程学院,常州213164

出　　处：《腐蚀与防护》2016年第9期760-763,共4页Corrosion & Protection

摘　　要：采用金相显微镜及扫描电镜(SEM)对可溶性聚四氟乙烯(PFA)涂层表面及涂层与试样金属基体的界面形貌进行了观察与分析,对涂层与金属基体的结合强度进行了测试,通过试验模拟氧化铝蒸发器的真实工作环境,对PFA涂层进行了耐腐蚀性、耐热性以及耐应力腐蚀性能测试。结果表明:PFA涂层与基体的结合强度高,其各项性能均能满足氧化铝蒸器对耐热、耐蚀性的要求。由此说明,PFA涂层可以用于氧化铝蒸发器的腐蚀防护。The surface condition and coating-metal interace of PFA coating were observed by metallographic microscope and scanning electron microscope （SEM）. The bonding strength between coating and metal substrate was tested. The alumina evaporator real working environment was simulated in the experiment, and the performance about the corrosion resistance, heat resistance and stress corrosion resistance of PFA coating were tested, The results show that various properties of the coating can meet requirements of the alumina evaporator. Therefore, PFA coating can be used in alumina evaporator.

关 键 词：可溶性聚四氟乙烯涂层 氧化铝蒸发器 应力腐蚀 防腐蚀 

分 类 号：TG174.4[金属学及工艺—金属表面处理]