Repair Welding Method of Temperature Survey Copper Tube for the Preheater of Heavy Oil Burner

The temperature survey copper tube for the preheater of heavy oil burner is an important accessory of heater. This article introduces a repair welding method for the leaked temperature survey copper tube. The argon arc welding technology is used in repair welding to fulfill the welding between Q235-A soft steel with copper. The pressure test and operation show that the repair welding quality meets the relative requirements of heater.