Our main induction furnace crucible cracked on a Friday pour

It was the last pour of the week for a big order of 4140 steel, and the whole thing just gave out. We had to scramble to transfer the melt to the backup unit, losing about 15 minutes of critical temp. Anyone have a good source for a more durable 500 lb silicon carbide crucible?

2 comments

2 Comments

evayoung9d ago

Our 600 pound magnesia crucible failed on a Tuesday night shift, right in the middle of a super duplex pour. The whole bottom just fell out, sent molten steel everywhere. We lost the whole heat and had to re-line the furnace. I feel your pain on that scramble. We switched to a different supplier after that, but it took three tries to find one that could handle our thermal cycles.

max8089d ago

We ended up using a custom rammed lining instead.