I have #16 crucible propane/force air furnace to 1750C.
I have a tube furnace to 1500C.
I have a box oven good to 1300C.
I have a tube furnace to 1500C.
I have a box oven good to 1300C.
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Rag and Bone
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Did you ever cook a pizza in your crucible propane/force air furnace? :lol:
No but I once roasted hot dogs whilst waiting on the furnace to come to temperature. 8)
flankdrive04
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haven't done this one yet!
Here goes....
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Here goes....
Name : Adam Taurian
Sex : Male
Age : 35
Location : Melbourne Australia
Profession : Area Manager
Hobbies : shooting, fishing, skiing, gold hunting!
Interrests : as above and motorsport
How long have you been refining gold? : just collecting at this stage!
What are you looking for in our community? : fun, tips, to share successes.
How did you discovered our Forum? : YOU TUBE link!!
Had a ball so far, keep it up guys!
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Harold_V said:
I should clarify that, by "to 1750" I mean, that's what temperature my alumina refractory is good to, actually it's more like 3200F max.
Regarding peak temperature, I've never taken it above ~1680C/3056F according to my thermocouple (either an R or S, I forget). I have melted and cast iron in it on several occasions and once I did a bunch of stainless steel spoons.
I don't know how most folks construct their furnace Harold, but I built mine with 3" 2400F kaowool, another inch of the 2700F material, then 3/4" of 3200F refractory with a zirconia wash coat. I use a Wenig-style Monster burner. The lid is kiln brick with an inch of 3200F on the bottom and coating the 3.25" vent hole.
Yes I do have pictures of the construction and use of the furnace. I have a cast iron melt on video as well but it is of poor quality. Ask and ye shall receive! I would rather post them and this discussion we have started elsewhere though.
For your information, I wasn't the first ''hobby'' furnace user to melt steel, in fact, I wanted to emulate this fellow's design, but I feel I improved it by adding a far superior insulation, at least in terms of how long it takes to get to 1600C. He still has a better idea on fuel introduction, but my way is easier on the crucible. I can discuss the advantage/disadvantages for any who are interested.
http://www.abana.org/ronreil/Furnace.shtml
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Thanks, Lou.
I've heard of such furnaces achieving temperatures you mentioned, but rarely does one do so without taking the steps you did. I'm impressed!
Were it not for owning an induction furnace, I'd want to duplicate the design. I will eventually build a crucible furnace for melting copper alloys----and it's obvious I should explore better insulation.
Way cool, Lou.
Harold
I've heard of such furnaces achieving temperatures you mentioned, but rarely does one do so without taking the steps you did. I'm impressed!
Were it not for owning an induction furnace, I'd want to duplicate the design. I will eventually build a crucible furnace for melting copper alloys----and it's obvious I should explore better insulation.
Way cool, Lou.
Harold
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Noxx
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Welcome !
That's great you found us from the kitco forum. I didn't know we had links there.
That's great you found us from the kitco forum. I didn't know we had links there.
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Noxx
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Dan welcome aboard 
Try an heat gun. They work great to melt the solder that retains pins.
Try an heat gun. They work great to melt the solder that retains pins.
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How long have you been refining gold? : Not yet, I want to play safe and
learn a lot about the nook and crannies about refining metals with the help
from the Ladies and Gentlemen of this forum.
What are you looking for in our community? : Information, lots of it!
How did you discovered our Forum? : from Kitco forums
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Age : 25
Location : outside of Portland, Oregon
Profession : Meat cutter's apprentice
Hobbies : Music Production, Site Administration (although I don't know why its a hobby, it should really be my profession)
Interrests : Learning is my only constant interest, as there is never a lack of things to learn about.
How long have you been refining gold? : Ive watched someone do it once, in a controlled environment, but have never done it myself
What are you looking for in our community? : I'm here mainly to evaluate the cost:benefit of recycling (pm and non pm)
How did you discovered our Forum? : Youtube video
Other : Well, while I do have a some amount of e-scrap that could be refined, I think I'm going to observe and ask questions for a while before i jump into refining anything myself. Its cool though, tat there is a community where people can come and learn about the harvesting and refining processes.
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How did you discovered our Forum? : Steve's website
Other : Was interested in refining Pt 20 years ago but could not find all the steps. So filed it away till now. I should have been collecting cats in that time, I would have a good supply.
