In magnetic induction, how do I affect materials in between two coils or two metals inducing electric current? Lets say, two coils and there is plastic in between them, I want to melt the plastic by using magnetic induction (obviously, I want to induce heat). What are the WAYS to achieve such thing?

If plastic is in metal pot, it should melt if metal is heated (eddy currents) by external magnetic induction.

Edited April 16, 20196 yr by Sensei

The plastic is unaffected by induction. As Sensei suggests, induction can heat something that would then melt the plastic via conduction, convection, and/or radiation 

Someone did something recently using magnetic induction for firing hot glue that I thought was an interesting take on it.

The had metal pieces inside the glue bullets that they heated.

 

Edited April 17, 20196 yr by Endy0816

Some plastics can be welded by capacitive heating, not by inductive heating. It's known but uncommon because the process applies only to lossy plastics like PVC, not no PE, PP, PS, PETP and so on. An advantage is that the parts get hot at depth quickly.