15
Tbh, I had to choose between a new ceramic foam filter or a traditional strainer core for a big bronze pour last week.
We were casting a set of architectural brackets, about 50 pounds each. The old-timer I work with swore by the strainer core he's used for 30 years, but I'd read about the ceramic filters reducing turbulence. I went with the ceramic filter. The metal flow was way smoother and we had zero dross inclusions in the final pieces. Honestly, it felt like a gamble but it paid off. Has anyone else made the switch recently? What was your result like?
2 comments
Log in to join the discussion
Log In2 Comments
hall.ruby1d ago
Yeah, we switched last year for our iron pours and saw the same clean results. It's hard to argue with that kind of improvement.
2
betty_scott181d ago
Our shop in Toledo switched to ceramic foam filters for all our aluminum gear housing pours about six months back. We were getting maybe one in five castings with a slag pit before. Since the change, our scrap rate from inclusions dropped to basically zero. The upfront cost is higher but not having to remelt or fix bad pieces saves so much time. Watching that metal run quiet through the filter is just satisfying, you know?
1