Fred.Rowe
Knifemaker / Craftsman / Service Provider
- Joined
- May 2, 2004
- Messages
- 6,848
We have used this Even Heat oven for almost ten years now and have not had any issues at all other than replacing the upper and lower coils. The new coils went in last year; a pretty easy install.
The kiln is used on a regular basis, mostly to heat process 01 steel. The machine has never been rigged or altered.
The billet in the photo was being heated to straighten a small warp. I turned the kiln on and programmed it to ramp at 2300 and set it at 1600 for 2hr. I went next door. In about a half hour of setting the kiln controls, my son came and got me. He says "the kiln was flashing [ ERROR ] and when I opened the door, smoke rolled out, no fire" When we inspected "You can see the pool of metal on the lower coil where it burned through. I can't figure out what took place. Look around the whole length of both coils. They have a feathery haze around them. If you look closely on the right you can see something like a ' carbon outline ' like a ghost of the coil itself was burned on the brick lining. The inside of the door, had a perfect outline of the inside kiln shape on it. It is brown
Nothing has contacted the coils that we can .see. Below is what the billet I was straightening looks like.
What metal gets a pink color to it? This billet was made two years ago. It was a combination of Harley links, taken completely apart and these long blade like pieces; they were hard as hell but only had an edge right at the end of each piece. The empty space in the can was filled with powdered steel. All my son and I can come up with is there was some chemical material inside the billet, left over from the short, canister welding session, that mixed with the carbon scale left inside the chamber, from the run of Bubble Jig grinding clamps, which are 01.
The lower coil burned in half and left a pool below it, as if, a shorting material loaded the hot coil and it burned through. As I said above these coils are almost new and the install was done by the book.
We just ordered a new set of coils, about 90 dollars, not too bad. But what happened inside this closed up box that fits the scenario?
The kiln is used on a regular basis, mostly to heat process 01 steel. The machine has never been rigged or altered.
The billet in the photo was being heated to straighten a small warp. I turned the kiln on and programmed it to ramp at 2300 and set it at 1600 for 2hr. I went next door. In about a half hour of setting the kiln controls, my son came and got me. He says "the kiln was flashing [ ERROR ] and when I opened the door, smoke rolled out, no fire" When we inspected "You can see the pool of metal on the lower coil where it burned through. I can't figure out what took place. Look around the whole length of both coils. They have a feathery haze around them. If you look closely on the right you can see something like a ' carbon outline ' like a ghost of the coil itself was burned on the brick lining. The inside of the door, had a perfect outline of the inside kiln shape on it. It is brown
Nothing has contacted the coils that we can .see. Below is what the billet I was straightening looks like.
What metal gets a pink color to it? This billet was made two years ago. It was a combination of Harley links, taken completely apart and these long blade like pieces; they were hard as hell but only had an edge right at the end of each piece. The empty space in the can was filled with powdered steel. All my son and I can come up with is there was some chemical material inside the billet, left over from the short, canister welding session, that mixed with the carbon scale left inside the chamber, from the run of Bubble Jig grinding clamps, which are 01.
The lower coil burned in half and left a pool below it, as if, a shorting material loaded the hot coil and it burned through. As I said above these coils are almost new and the install was done by the book.
We just ordered a new set of coils, about 90 dollars, not too bad. But what happened inside this closed up box that fits the scenario?
