How To Heat Treatment Oven Build - video

Barbershop Blades

Barbershop Blades

Barbershop Customs
Joined
Feb 17, 2018
Messages
59
If you've ever thought about making a heat treatment oven, I hope this video will help you
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The list of components used to build it is in the description
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I've seen a lot of heat treatment ovens without a proper insulation, which results in low effectiveness. In this video we show how we've build the solid oven that actually isolates the heat well
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Just saw your video. Nicely done, but I do have a couple questions.
1) Why no door interrupt switch? Will make you MUCH safer.
2) Buy or make some tongs! Get more distance between you and your oven for safety!
3) I hope you used rigidizer on the wool, at least on the door!?
4) Why did you decide to use a plastic tupperware type box, instead of a heavy plastic electrical or better yet a steel or aluminum project box?

It looks very well made until you get to the control box. I hope it serves you well and long, but please consider a few upgrades for your own safety.
 
Thank you for your opnion ;)
1) It's hard to get a switch that is able to handle such power, and the ones that aren't are actually less safe than no switch at all. I also have installed a switchable fuse that protects everything.
2) I have already done that, this video is kinda old, but we had no time to edit it. Also the gloves that I use isolate the heat pretty well.
3) No, I haven't the rigidizer is required where the gases flow with some speed e.g. in propaine forges, here it doesn't fall apart as much. I also always use a mask when I'm working with this oven. But after reconsidering it, I have bought it.
4) First of all, it doesn't conduct electricity. Secondly, it was supposed to be a low budget build and the box is what I had.

I have this oven for almost a year now and it serves its purpose well ;)
 
Thanks for this... I'm contemplating building one of these in the future. Currently trolling Craig's list looking for an old kiln to salvage the bricks from!
 
The fuse will not protect you from a severe ... and possibly fatal ... shock. I would not build an oven without a doror interlock switch. It costs about $5 and is super simple to wire.
There are two wires from the PID to the SSR. These are DC lines at around 12 volts, and draw a few milliamps. Put a NO door switch in either wire. Open the door and the SSR shuts offf power to the coils.
 
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