电弧喷涂防腐在污水处理钢制设备中的应用研究  

Anticorrosion Research of Arc Spraying Technology in Wastewater Treatment

作　　者：徐国华[1] 徐灏龙[1] 陆建海[1] 

机构地区：[1]浙江省环境保护科学设计研究院,浙江杭州310007

出　　处：《全面腐蚀控制》2009年第5期43-44,38,共3页Total Corrosion Control

摘　　要：采用电弧喷涂技术在Q235钢基体上制备了锌、铝防腐涂层样片,并用样片在城镇污水中进行了半年的腐蚀模拟试验。试验结果显示:环氧封闭处理的锌涂层与铝涂层表面几乎不发生变化,涂层与基体的结合力不变;而不经封闭处理的铝涂层样片产生白色析出物,锌涂层样片能起到阴极保护作用,但腐蚀速率较快。Zinc and aluminum anticorrosion coating sample were sprayed on Q235 steel by arc spraying; the coating sample was tested in the city＇s wastewater for half a year. The result showed that there was little change on the sealing coats, and the substrate binding force is invariable. Oppositly, the white separation was caused on un-sealed aluminum coats ,and the un-sealed Zn coating can play a role of the cathodic protection ,but the corrosion rate is more fast.

关 键 词：污水处理 电弧喷涂 铝涂层 锌涂层 耐腐蚀 

分 类 号：TG174.442[金属学及工艺—金属表面处理]