Fairdeal agencies manufactures dc tig welder. As the current is controlled to the suitable characteristics for good arc start by newly developed, unique, national ic plus thyristor controller, excellent and almost 100 percent instantaneous arc start ratio can be provided from small current to large current. Arc can be kept stable by decreasing the ripple ratio of output current. As a result, one can get good welding bead and high-quality welding, in addition even by high speed welding. Example of high-speed welding: 0.3 mm edge weld of stainless steel [welding speed: 3.5 ml min.] in case of fluctuated input voltage, temperature, arc length and outside condition etc., it can keep adjusted current every time by unique constant current control. Merits of national dc pulse tig welding: beautiful and complete welding bead; uniform penetration bead; high-quality welding by uniform fusion penetration, and nothing defect; suitable for welding of different thickness plate, work with gap and of all position. Dc stick welding [manual], and precisely controls the arc conditions.
