cell phone jammer is adopted to scare the dangerous animals away

Energy supply. Arc welding process to consume large amounts of electrical energy through a variety of welding power source to supply energy. The most common welding power source includes a constant current source and constant voltage power supply. In the arc welding process, the voltage applied to determine the length of the arc, the input current determines the output of the heat. Constant current power output constant current and voltage fluctuations are used for manual welding, manual arc welding and tungsten inert gas shielded arc welding. Because the current manual welding requirements remained relatively stable in the actual operation, the electrode position is difficult to ensure the same arc length and voltage will also change. Constant voltage power supply output voltage and constant fluctuations in the current.  cell phone jammer  is adopted to scare the dangerous animals away.
Therefore commonly used in automatic welding processes such as MIG arc welding, flux cored arc welding and submerged arc welding. These welding processes, arc length remains constant, any fluctuations occur because the distance between the welding head and the workpiece through the current changes to compensate. For example, if the welding head and the workpiece interval close to the current rapidly increases, making the solder joint at the heat surge, melting of the welding head section until the interval to restore to its original level [12]. The type of electricity used has a great influence on the welding. Power-welding process, such as the protection of the manual metal arc welding and MIG arc welding commonly used direct current, electrode can be connected to positive or negative. Welding, then the positive part will have a greater heat concentration.  cell phone jammer  is utilized to indicate the direction.