1. thermoforming method: heat the welding place with a heat source and adjust the flange plate mechanically. Hot forming method is to use the principle of thermal expansion to make the metal material in the welding area expand when heated and contract when cooled, so as to achieve the purpose of correcting the flange.
2. Manual hammering method: use a special hammer and hammer to knock the flange moderately for adjustment. Manual hammering requires the operator to have certain experience and skills to avoid excessive deformation or damage of the flange.
3. Processing method: Use special mechanical equipment, such as planer and milling machine, to process the flange. The machining method can accurately control the flange and can be adjusted in real time during the machining process.