Well, "3rd time is charm" as some would say it, and at this point I would have to agree. I am just estatic about the success I had last night, I went ahead and put lava rock in the bottom of my furnace to raise up the heat source. I filled in the top layer of the lava rock with briquettes and some coal to where the bottom of the crucible sat and lit it to start heating up, then I put the ladle/crucible in the oven to fill in the sides of the furnace around the cup to the top. At this step, the briquettes and coal heating up takes probably a good hour for it to really get hot. So, while I'm waiting I went to my dads place to pick up the leaf blower to use as air source. This works really well because it has two speeds for air flow. As you can see below these flames are the beginning stages for heating up, and when the flames start getting darker and goes to the orange to yellows then you are getting toward melting temps.



You can see the flames above are getting hotter, and all the smoke is the carbon burning off the coals I put in. Coal takes awhile to get hot and when they do the smoke goes away.

Here is a great view of the briquettes and coal heating up, and as you can see the yellow in the middle is hot enough to melt copper. I had copper, and probably silver in this run and it only took around 8 to 10 minutes to melt to a liquid.


Here I am getting ready to pour my first melt. (I didn't post pictures of this)

I really like this picture because it shows the crucible glowing red inside of the furnace.

Here is the furnace going full blast on my second melt, I put the same metals in from the last run and this time I was able to melt all the nickle, copper, thin platinum buttons, and sterling silver. I had a stainless steel spoon also but it did not melt. Nickel melts roughly at 2500'F, so my guess is that my furnace had to be at least that temp.
1 comment:
That was one awesome burn! I couldn't believe how glowing yellowish-white the ladle was. :)
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