Fluxtrol Demonstration

[ericdalgetty]

i think, induction heating is heat caused by the friction of alternating current, when the metal has a magnetic field induced in it, the second half of the ac wave causes friction between the magnetic fields

[hydrogenix]

@ericdalgetty It's just because of the intensity of the high current. A 60kw can pump around 1500amps at high frecuency heating up only the outer side of the metal mass being heat. As higher is the frequency - more intense is the current on the surface.

[YummyMercury]

the magnet induces a high current in the metal which melts it,

[Heraclidaeus]

@YummyMercury Does that mean that if you were trying to heat a metal that could handle the current, like a thick piece of copper, it wouldn't melt?

[hydrogenix]

@Heraclidaeus It will melt anyway, because only a superconductor wouldn't heat. So it heats and melts, but you need more power.

[YummyMercury]

@Heraclidaeus Nope, the high frequency reduces the effective current capability an awful lot. In an extreme case, like a superconductor, then no, it wouldn't heat.

[marcheseDS]

@YummyMercury Usually induction heating is not used for melting AFAIK but only heating for forging or more often heat treating the metal (steel) to a precise depth and with a controlled temperature ramp. Over the so called non-magnetic temperature the process would be quite inefficient I think.

[faackoof]

@dumle29 current is sent through the copper tube at a very high frequency. this current creates magnetic waves that interact with the metal and heat it up, I think

[samnelso]

Cool vid