My ladle pre-heat trick fixed our cold shut issues

Honestly, we were struggling with cold shuts in our iron castings for weeks. Tbh, it was causing a lot of scrap and slowing down production. I noticed the metal was cooling too fast during the pour, so I started pre-heating the ladle before each use. Ngl, it took a bit of extra time, but the castings came out much better. Last batch, we had zero defects after I made this change. Has anyone else tried this? I'm curious if other foundries have similar fixes.

2 comments

2 Comments

harper2052d ago

Cold shuts are that common? We just pour at normal temp and our castings come out fine.

black.kevin1d ago

That foundry over on Third Street had the same attitude as @harper205, until their "normal temp" dropped ten degrees over a week. Suddenly every other plate had a hairline fracture nobody caught until machining. It's wild how much small changes in routine can mess things up without anyone noticing.