How can the electric welding machine be refitted into spot welder?
Due to the high secondary voltage of the welding machine, the number of secondary boxes should be reduced. The primary turns of the voltage 3-5V shall be reduced by twenty-five percent
A few flat copper blocks are wound around the iron core of the transformer, the no-load voltage is at 5~7V, and a time relay is placed on the input line, so that the current and power time are adjusted according to the thickness of the weldment.
Cannot be changed.Welding machine usually refers to welding rod, arc welding machine, such as BX- series AC welder, ZX- series DC welder.The welder belongs to fusion welding, referred to as fusion welding.Spot welder, the full name is: resistance spot welder. Resistance welding, referred to as: resistance welding.The work principle is different and cannot be changed.Electrode hand arc welding no-load voltage is usually at 50-85V, working voltage according to welding machine category is different, the size is different, usually between 30-45V. Tens of volts welding current small diameter welding electrode can be welded.Resistance spot welding no-load voltage is usually less than 10V, welding current from 3000A~ tens of thousands of amperes. Weld time millisecond level. By pressing, the low voltage and high current form the nugget at the pressurizing part. Achieve welding effect.
