影响焊缝腐蚀的因素包括母材料、焊材、焊接工艺和焊接质量等等,也包括介质的化学与物理的条件、运转条件……等等。因此焊缝腐蚀是种受众多因素影响的腐蚀,必须究其理明其由。本人从压力容器的大量检查修复中观察到,焊缝腐蚀往往和焊缝外观形状存在着表观的联系,于此仅就工作中所遇到的几种现象作经验之谈,简述如下: 第一种是超宽型焊缝:在厚板焊接中为了满足焊接强度,或在设备焊接中因焊缝中有某种缺陷需再进行处理的情况下都会呈现 Factors that affect the weld corrosion include the parent material, welding consumables, welding process and welding quality, etc., as well as the chemical and physical conditions of the medium, operating conditions ... and so on. Therefore, the corrosion of the weld is affected by many factors, the impact of corrosion, we must investigate their reason. I observed from a large number of pressure vessel repair inspection, weld corrosion often appearance and appearance of the weld there is an apparent relationship, which only encountered in the work of several phenomena to experience the talk is summarized as follows: The first is a very wide type of weld: In the thick plate welding in order to meet the welding strength, or welding in the equipment due to certain defects in the weld to be dealt with again under the circumstances