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Ribbon burner forge

V

vikingGoalie

Joined
Aug 20, 2019
Messages
74
https://imgur.com/a/azaXGrT

I've built a ribbon burner forge, it's pid controlled.
Picture with plumbing is just a dry fit up and not in that is the needle and shut off valve that's on there in videos.

Very happy with pid and solenoid control.

That said my first ribbon burner, getting the flame dialed in is a little finicky. If I have a reducing flame I can't get to forge weld temps. Have to have dragon breath coming out some and even with I'm capping out around 2000 degrees. I have some itc 100 arriving soon think that will help. But while the heat being thrown out the door feels way hotter then mr volcano, that little forge can get to 2300 all day long.
I fooled around with different levels of air and propane but that last video where it says it's just over 1900 is about as good as I got it this time around. Any tips?
 
Are you only using that hand held temperature gun to checking temp? Those are not very successful for accurate temp checking. Better a TC inside the forge, not direct in flame.

Good looking forge, I've always been impressed with those ribbon burners and wanted to build one.
 
I have a thermocouple in the forge it's hooked into that gray not moint d yet box. Was using the gun which I find to be pretty accurate. To compare the gun temp to the pid reading. They are close, gun adds a little 50 degrees
 
The hotter/brighter the steel is, the less accurate the hand held IR guns are.

IIRC, when I set my PID controller on my forge, I had to open it up and flip one of the little white (there were 8 or 12 IIRC) switches inside to make sure it matched the sensor type (mine is a type K, IIRC). Are you sure you have it set up correctly?

Also, if you don't have any dragon's breath, you don't have a reducing flame. The dragon's breath indicates that there is more fuel than oxygen available in the forge, therefore the fuel doesn't burn until it exits the forge into the normal atmosphere.

I used Auber Instruments (auberins.com) as a good resource for understanding and setting up my PID.
 
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How fuel rich are you running the forge? Too much fuel will lower the temperature
I would try closing the back and front up, if that doesn't get it there fill some of the empty volume?
 
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