CORROSION MECHANISMS, PROCESSES--Understanding the basic elements that cause rust is the first step in preventing rust

摘要

AS a metal fabricator, most of your focus is on changing the shape of a metal workpiece, whether you're cutting, bending, end forming, piercing, notching, machining, or some other process. Most of these processes require an oil-, solvent-, or water-based fluid to prevent friction, which in turn prevents overheating or premature wear. Another consideration, one no less important than fabricating the work-piece, is preventing corrosion. Some fabricators rely on the metalworking fluid to provide both in-process and final corrosion protection; others use a final process to apply a short- to long-term corrosion preventive. Either way, corrosion prevention agents provide a necessary function. Without protection, the iron (Fe) in the steel interacts with oxygen (O) in the atmosphere, causing the steel to corrode.