• Weldcon India Private Limited

DC Welding Gun, Medium Frequency

Weldcon India (P) Ltd offers a medium frequency DC Welding Gun. Main features: There are applications and situations where the MFDC resistance welding is the best choice available, and though it is more expensive, there are considerable advantages: significant energy savings: for plants that cannot purchase more electrical power, the MFDC approach allows projects with less energy; improved and consistent power factor; automatic load distribution – load is evenly distributed across all three phases; the capacitor bank allows for current to draw from the bank as well as from the line thus reducing peak line currents; tolerant of electrical line disturbances, with the capacitor bank smoothing out line notches and line spikes; precise welding current control, as IGBTs used for switching; attains target current immediately – DC systems of the SCR type have a rise time prior to its steady state; since the MFDC is so responsive, it is possible to create full phase firing during the natural rise time to lessen that period of time; more process friendly – the MFDC eliminates undesired inter-cycle cooling periods that exist in AC resistance welding processes; welding therefore can occur faster which would then reduce heat waste and the problems associated to eliminating that waste; low inductive loses in secondary circuit – due to DC current, the inductive losses in secondary circuit because of the magnetic metal content in between secondary circuit are minimised giving accurate control on welding current; higher current deliveries – improved short circuit currents up to 30 kA are useful for welding materials like brass, copper, and aluminium; lower cycle times –as the welding periods are in milliseconds and inter cycle non activity is avoided the cycle time of weld is reduced resulting in higher productivity; and lower weight and size of the equipment – this increases the manoeuvrability of the machine, resulting in reduced fatigue to the operator.