文档介绍：化工设备的腐蚀与防腐研究
2014届本科毕业论文
化工设备腐蚀与防腐研究
摘要
化工设备的腐蚀从现象上有全面腐蚀,局部腐蚀,从腐蚀机理上有化学腐蚀,电化学腐蚀。其中电化学腐蚀是最普遍,危害也最大的一种腐蚀形式。通过合理选材,优化设备,电化学保护,耐腐蚀涂料可以减缓和防止化工设备的腐蚀。所有化工设备产生腐蚀的原因,75%都是因为表面处理不当引起的。目前用耐腐蚀涂料来防止化工设备表面腐蚀最为简单、经济、有效,具有良好的应用前景。
关键词:化工设备,腐蚀,防腐
Study on corrosion and anticorrosion chemical equipment
Abstract
The corrosion of chemical equipment from corrosion, prehensive corrosion, localized corrosion. From a chemical corrosion mechanism of corrosion, electrochemical corrosion. The electrochemical corrosion is the most widespread, a form of corrosion damage is the largest. Through the rational optimization of material, equipment, electrochemical protection, corrosion resistant coatings can slow and prevent the corrosion of chemical equipment. The corrosion causes of all chemical equipment, 75% is because the surface is caused by improper handling. The corrosion resistant coating to
prevent corrosion of chemical equipment is simple, economic, effective, and has a good prospect of application.
Key words:Chemical equipment,Corrosion,Anticorrosive
目录
1引言----------------------------------------------------------------------------------------1 2常见的腐蚀种类------------------------------------------------------------------------2
------------------------------------------------------2
局部腐蚀----------------------------------------------------------------3
--------------------------------------------------------3
小孔腐蚀-------------------------------------------------------3
缝隙腐蚀-------------------------------------------------------3
晶间腐蚀-------------------------------------------------------3
选择性腐蚀----------------------------------------------------3
磨损腐蚀-------------------------------------------------------4
应力腐蚀-------------------------------------------------------4
腐蚀疲劳-------------------------------------------------------4
氢损伤----------------------------------------------------