Theoretically, the space between the cylinder barrel and the piston rod is supported by non-conductive seals. If the cathode and the anode are connected to two parts respectively, the gap between the cylinder barrel and the piston, or between the guide sleeve and the Between the piston rods, there is a possibility of breakdown and the seals will be damaged. Therefore, when welding, the cathode and anode cannot be allowed to overlap the two pieces.
In addition, the cylinder itself is a precision-machined component. It may be deformed due to high temperature during welding. Therefore, you must avoid mating parts such as threads, middle sections, guide sleeves, and pistons during welding. Otherwise, the deformation will be very serious. Difficult to repair.