FlatBeltBob
Stainless
- Joined
- Jul 22, 2007
- Location
- central WI
I took about 60# of what I thought was clean aluminum chips to the recycler the other day.
I always take great care to clean out my chip pans when changing from steel to alum. wipe up all fines , magnet sweep , paper towels.
I even run the lathe chips through a chip compactor .
The guy runs a strong magnet wand and finds lots of places the wand will stick to . So he offers to pay me $ zero for the lot.
What the hell ! I hate to just throw chips in the trash .
Is it possible that metal fines in the coolant are sticking to the chips
in such an amount to be detectable ?
I always take great care to clean out my chip pans when changing from steel to alum. wipe up all fines , magnet sweep , paper towels.
I even run the lathe chips through a chip compactor .
The guy runs a strong magnet wand and finds lots of places the wand will stick to . So he offers to pay me $ zero for the lot.
What the hell ! I hate to just throw chips in the trash .
Is it possible that metal fines in the coolant are sticking to the chips
in such an amount to be detectable ?