Really good points. I may have made the erroneous assumption that users here were familiar with the hazards of pure oxygen. Even so, it bears...
So how about filling an 80 gallon air tank with O2 enriched air? I don't know how much pressure the enrichers put out but you don't need pressure...
I don't know what "breaking" means. Surface cracks appear after failure on a microscopic level. As a mechanical engineer I would recommend you...
A couple of thoughts: You need to be very careful if you're casting items which if they fail would cause personal injury or death. Not yours,...
Excellent!
Here's mine. It is all brick and has worked well for years, 485 melts currently, with little damage. I melt mostly aluminum, some brass/bronze...
Thanks, Charlie! I only run WMO in my drip burner but occasionally add bad gasoline to my charge tank. I can see less heat when I'm burning...
Good to look around. Great to be remembered! Hi Kelly! After my wife died in 2019 I kinda ran out of fuel. It has been a struggle even though...
44 melts seems like a good run to me. Iron temperatures are hard on any refractory. I think you'll find that moderate reductions of temperature...
I agree, and it looks clean. The soft cndition you used to break it is called "hot short".
And ear plugs.
How big is your crucible, that looks manageable.
Two options. Heat to hot short as metallab suggested over an open fire then mash it into pieces. Melt over an open fire and pick up the remains...
This is a staged picture, nobody's floor is that clean. Especially anybody who does as much work as Kelly.
Try a Super Salamander crucible. I set mine on an old firebrick on the shop floor to cool. Never a problem. Did you put fresh cardboard under...
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