电气焊（EGW）是一种特殊的焊接工艺，与 气体保护金属极电弧焊（GMAW）或药芯焊丝电弧焊（FCAW）工艺 垂直位置焊接。所述电极将填充金属沉积在所述电极形成的空腔中 连接焊接板之间凹槽的垫板或垫板。这个 电极可以是实心的、金属芯的或药芯的，额外的屏蔽可以是，也可以是 不能从外部供应的气体或气体混合物中获得。焊缝通常是 一次完成。介绍了该工艺的基本原理，包括各种焊接方法。 关于设备、耗材、应用和冶金优势的讨论 并提供了一些限制。过程变量和操作参数的选择 然后介绍了条件和典型的EGW程序。焊缝检查，以及 介绍了焊接工艺和操作人员的培训和资格认证。最后，一个 故障排除指南、安全注意事项和补充阅读清单 提出了。

Electrogas Welding (EGW) is a specialized welding process having similarities to the gas metal arc welding (GMAW) or the flux cored arc welding (FCAW) processes for vertical position welding. The electrode deposits filler metal in the cavity formed by backing plates or shoes that bridge the groove between the plates being welded. The electrode may be solid, metal cored, or flux cored, and additional shielding may or may not be obtained from an externally supplied gas or gas mixture. The weld is usually completed in a single pass.Fundamentals of the process, including the various method of welding, are presented. A discussion of equipment, consumable, applications, and metallurgical advantages and limitations is provided. The selection of process variables and operating conditions and typical EGW procedures is then presented. Inspection of welds, and training and qualification of welding procedures and operators are described. Finally, a troubleshooting guide, safety considerations, and a supplementary reading list are presented.