The current sensor seal welding methods used are: resistance welding, welding, electricity beam welding, plasma Welding Electrode and so on.
1, resistance: It is used to weld thin metal, is clamped between two electrodes by welding pieces of a large current melting electrode contact surface, through the implementation of welding heat to the workpiece resistance. Workpiece deformation, resistance welding joints on both sides by welding, and laser welding carried out only from the unilateral, resistance welding electrodes used to be regular maintenance to remove oxide and adhesion of the metal from the workpiece, the laser welding of thin metal lap joints are not contact with the workpiece, Furthermore, the beam can be difficult to enter the conventional welding and welding areas, welding speed.
2, welding: using non-consumable electrode and shielding gas, commonly used to weld thin workpieces, but the slower welding, laser welding and heat input than the larger, easy to produce deformation.
3, plasma arc welding: the argon arc similar to, but will have a compressed arc welding torch, in order to improve arc moderate energy density, than the welding speed, deep penetration, but inferior to laser welding.
4, electron beam welding: it is accelerated by a bunch of high-energy density of electron flow impact the workpiece, the workpiece surface within a very dense plot tremendous heat to form a "hole" effect, so as to implement deep-penetration welding. The main disadvantage of electron beam welding is a high vacuum environment needed to prevent the electron scattering, equipment complexity, size and shape of weldment vacuum chamber by restrictions on Korea demanding pieces of assembly quality, non-vacuum electron beam welding can also be implemented, but because of electronic scattering and focusing effects of a bad influence. Electron beam welding, and also X-ray magnetic offset problems due to electronics charged, will be affected by magnetic deflection effect, and called electron beam welders Aluminum Electrode pieces of magnetic treatment to go. X-ray particularly strong at high pressure, the need for operators to implement protection. Laser welding and vacuum chamber is not required prior to welding of the workpiece magnetic treatment, it can be carried in the atmosphere, there is no anti-X-ray problem, so we can within the online operation in the production line can also be welded magnetic materials.