一、概况腐蚀是金属在周围介质的化学、电化学作用下所引起的一种破坏。本质上它是一个自发过程。人们虽然不能杜绝腐蚀现象的发生,但可以通过某些办法去减轻或防止它。目前腐蚀损失包括如下几个方面:一个是更换腐蚀设备、零部件,造成材料、人力上的直接损失;另一个是由于腐蚀引起的停车、原料的跑冒滴漏、产品的污染、设计上的保守、新工艺不能上马,所造成的间接损失;另外,腐蚀还常常造成公害及人身安全事故,危害不浅,因此腐蚀 First, the general situation Corrosion is the metal in the surrounding medium of chemical, electrochemical damage caused by a role. It is essentially a spontaneous process. Although people can not stop the corrosion from happening, there are some ways to reduce or prevent it. The current corrosion losses include the following aspects: one is the replacement of corrosion equipment, spare parts, resulting in direct loss of materials, manpower; the other is due to corrosion caused by parking, raw material leakage, product contamination, design conservative , The new process can not be launched, the indirect losses caused; In addition, the corrosion is also often caused by public nuisance and personal safety incidents, endangering, so corrosion