Rusting Prevention by Oil Coating

概述

Oil or grease coating prevents iron oxidation by creating a physical barrier that excludes water and oxygen from the iron surface. Without both oxygen and water in contact with iron, the electrochemical corrosion cells cannot form. This is one of the simplest and oldest corrosion prevention methods.

参与者

日常示例

Applying WD-40 or oil to tools, bicycle chains, and hinges prevents rust by displacing water and sealing out oxygen.

工业重要性

防腐涂层（油脂、油漆、聚合物）每年可防止数千亿美元的金属腐蚀损失，是工业基础设施维护的关键手段。