I want to make a small heating element, using resistance wire and a batteryThe point is that I need a small hot rectangular surface (only about 1cm x 2cm)I was thinking of using a small copper plate (for its high thermal conductivity) and quot;zig zaggingquot; some NiCr wire along one side of it (so that the other side will be the hot flat surface I need), but the problem is that that will short the circuit since the resistance wire is not insulatedI've been looking for coated resistance wire but I cannot seem to find anything like thatI need the temperature to be fairly high so I doubt I can use tape to insulate the plateMaybe I could use another material but I can't think of anything (a ceramic plate could handle the temperature but its thermal conductivity is bad and I wouldn't know where to get it)so If you have any suggestions on this, just shout
That's the correct way to do itI have never done it any other way.
That's the correct way to do itI have never done it any other way.
Are you heating metal? If not why dont you try this? Use the ceramic plate as the base and place the copper wire on top of that in the zig Zag fashionThis way you can place whatever it is you need to heat (hopefully non-metal) directly onto the wireUsing this set up, you actually don't need a material with a high thermal conductivity, actually the worse the betterIf you are heating a metal try covering the wire with a very thin(sanded down) piece of ceramic.
Are you heating metal? If not why dont you try this? Use the ceramic plate as the base and place the copper wire on top of that in the zig Zag fashionThis way you can place whatever it is you need to heat (hopefully non-metal) directly onto the wireUsing this set up, you actually don't need a material with a high thermal conductivity, actually the worse the betterIf you are heating a metal try covering the wire with a very thin(sanded down) piece of ceramic.
