apparatus for gradient induction heating or melting of a workpiece and method for heating or gradient melting a workpiece by induction

摘要

APPLIANCE HEATING OR MELTING OF A WORKING PART, AND METHOD FOR GRADIENTLY HEATING OR MELTING A WORKING PART An apparatus and process are provided for gradient induction heating or melting of a workpiece. Working with a plurality of induction coils, it is connected to a power supply that may have a synchronization capacitor connected through the input of an inverter. The plurality of induction coils are sequentially locked around the workpiece. The drive has a pulse width modulated AC power output, which can be in synchronous control with the pulse width modulated AC power outputs of other power supplies through a control line between the controllers of all power supplies. energy.