Bottlehead Forum

RE: OT: Induction heating of work tables?

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In Reply to: RE: OT: Induction heating of work tables? posted by AlecJ on March 02, 2008 at 21:06:05

Ok, let's see. Shellac is hygroscopic, so it will not protect from moisture. Polyurethane will protect better and is water proof.

I'm wondering why you believe you need high frequency AC. (maybe you have information I don't here?) But I bought induction heated spin beams back in the 90s from Tokuden in Japan. The induction heaters all worked off of 60Hz AC but higher voltages. And the induction coil needed a way to "Sink" the heat produced into the metal it was heating. That is, a bolted flange connection.

And, of course, you need a way to control the heat. Some temperature sensing element and a set point device. And you want current limiting on both sides of a transformer. You don't want to fry anything or set the house on fire.

I did control systems for 20 years. You don't want an open loop (no feedback) controller here.

And a final warning, keep anyone with a Pacemaker, like me, away from induction heating.

"Remember, YOU are the only one who needs to be happy with the sound of YOUR SYSTEM."
Grainger Morrison
There Is Only One (Grainger Morrison, it seems)

Follow Ups:

RE: OT: Induction heating of work tables? - AlecJ 08:42:51 03/03/08 (3)
- My Experience = 2 - Grainger49 10:56:02 03/03/08 (2)
  - RE: My Experience = 2 - AlecJ 17:33:10 03/03/08 (1)
    - Spinbeam - Grainger49 17:38:47 03/03/08 (0)

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