Device and method for plasma arc melting through magnetostatic soft-contact stirring and compounding

A method for plasma arc melting through magnetostatic soft-contact stirring and compounding, wherein the method comprises the following steps:

• step 1:
• assembling a device, specifically assembling a furnace body, a tungsten electrode, a water-cooled copper crucible, magnets, rotary tables, a drive shaft and a stepper motor according requirements, and after the assemble is completed, commissioning the device;
• step 2:
• placing a metal raw material in the water-cooled copper crucible after the commissioning of the device is completed;
• step 3:
• starting the tungsten electrode to conduct plasma arc melting on the metal raw material in the water-cooled copper crucible;
• and
• step 4:
• starting the stepper motor to drive the rotary tables on the drive shaft to rotate so as to generate an alternating magnetic field and then to generate an electromagnetic force, wherein the electromagnetic force is acted on the unmelted metal raw material at the bottom of the water-cooled copper crucible to push the unmelted metal raw material to move such that the unmelted metal raw material at the bottom is in contact with the plasma arc to be melted, and at this time, the melting is completed.