If you are curious what steam does to brass, check out this picture:
http://jarod.eells.us/projects/Foundry/Statton2006Sept/slide_01.html
This was not a crucible breaking but rather due to moisture in the ingot mold.
I somehow caught a tiny blob of brass behind my ear and it burned me.
The one time I've had a crucible develop a pin leak, it shot out the side and
ran all over the driveway. We now have some interesting rock/Al sculpture.
Make sure you have somewhere to dump the whole pot before you start.
My feeling is that having spectators make things worse. You aren't paying
as much attention to what you're doing and that's when bad things happen.
Jarod.
On Mon, Oct 25, 2010 at 08:50:38AM -0700, Alan Millar wrote:
> On Mon, Oct 25, 2010 at 6:36 AM, jeflhl02 <greengold02@hotmail.com> wrote:
>
> > crucible breaks/bursts, will it be an outward blast that will send
> > pieces of the crucible AND molten metal outward (toward me)? OR Will
> > the crucible fall to pieces in a downward direction?
> >
> Down. But when molten metal hits the ground, it can splash and will run.
> So downward still implies toward you. (There won't be any "blast" from a
> crucible breaking, but there can be when pouring into something wet and
> water turns to steam; that's a different hazard to watch out for.)
http://groups.yahoo.com/group/gingery_machines/app/peoplemap/view/map
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