3
Old guy at the Milwaukee plant told me to always pre-heat the ladle for gray iron, even in summer.
I figured with the heat wave we had, skipping it on a short run wouldn't hurt. Ended up with a cold shut in a whole batch of gear blanks for a local tractor company. Cost us half a day to re-pour and clean the molds. Anyone else run into this with specific alloys?
2 comments
Log in to join the discussion
Log In2 Comments
nancys905d agoTop Commenter
Yeah, that "even in summer" bit is so true. I learned the hard way with ductile iron last August, thought the ambient heat would cover it. Got a nasty slag line and had to scrap a whole set of pump housings. Those old guys really do know their stuff.
6
west.alice5d agoMost Upvoted
But sometimes you gotta learn those lessons yourself, you know?
8