Electric Kiln

S

sfoo

Joined
Dec 3, 2002
Messages
42
Today my sister in law called from college where she takes pottery and told me to be there by 4 if I wanted a free kiln. :D

Weighs about 80-100 pounds. internal size is about 10x10x12 or so.

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kiln-1.jpg


kiln-2.jpg


Looks like it came with the kilnsitter and timer. The teacher I got it from said it would take up to a 4 cone (2208 deg F. ). More than enough heat for most of my needs (mainly O1 for now).

The top is broken from someone dropping the lid. The insides are in decent condition, some small breakage and cracks. the elements work. Some new firebricks and cement will fix the top.

Anyone here used something like this for heat treating? I'm assuming a lot and don't want to end up overheating steel or worse.
 
I asked about using a kiln for use with steel and I only found one problem: I was told that they are accurate to about every 100 degrees. It didn't seen precise enough...
 
Yes,
I use a similar kiln for heat treat and mine is accurate to 1 degree, due mostly to anelectronic controller from Omega. I even use mine for spherodize annealing. What a great find!!!!
Delbert:eek: :eek: :eek:
 
I'd say you have a prize. You will need to determine its accuracy. You want to be confident of your temp's. You can find controllers on Ebay and I think you can get 'cones' to check temperatures (ask your sister or the teacher about that). Try to be confident of the temperature settings to within a few degrees; say 10 degrees F..

I use an electric kiln manufactured and sold as a knife kiln. I love mine a lot and am glad I was able to get it. 2200 F. is about 100 F. higher than you'll need for anything I am aware of. I think BG-42 requires alittle over 2000 F. and maybe a bit more than that. Most of the stainless you'll HT will be around 1950 F., there abouts or less. The tool steels are lower. You're covered on the high end for sure.

Roger
 
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