450V10000UF电子元件 全新螺丝脚电解电容器 450VDC YADACON 雅达康

An ordinary electric welding machine is a special transformer. The difference is that the voltage drop is ***all when the transformer is connected to the load, and the voltage decreases greatly when the welding machine is connected with the load. This is mainly achieved by adjusting the flux and the inductance of series inductors. Although the circuit is closed, it is precisely because the circuit is closed that the current is equal everywhere in the whole closed circuit; But resistors vary from place to place, especially at unfixed contacts, which are called contact resistors in physics. According to the law of the thermal effect of current (also known as Joule's law), QI ^ 2rt shows that if the current is equal, the greater the resistance, the higher the heat, and the maximum contact resistance between the contact of the electrode and the metal body in the welding process. Then the number of electric heating produced in this part is the most. The electrode is also the alloy with lower melting point. Naturally, it is easy to melt, and the melted alloy electrode cogs onto the object to be welded.