喷油泵提前器的焊接,采用氩弧焊工艺,虽可避免产生热裂纹,但采用 CO_2保护焊,成本低,质量稳定可靠。本文介绍了采用 CO_2保护焊焊接提前器的合理工艺规范及所研制的专用工装和自动控制装置。 Injection pump advance welding, the use of argon arc welding process, although can avoid hot cracks, but the use of CO_2 welding, low cost, stable and reliable quality. This article introduces the reasonable process specifications and the special tooling and automatic control device developed by CO_2 shielded welding welding advancer.