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Spent a full shift trying to figure out why our new green sand was acting like soup
Honestly, we got a fresh batch in from the supplier and it just would not hold a mold, kept slumping over like wet cement. Tbh, it took us 6 hours and three different binder tests before we realized the new guy had been adding way too much water to the muller. Anyone else ever have a simple fix take a whole day to spot?
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emma_hayes8012d agoTop Commenter
My buddy in the foundry had a similar thing happen with bentonite clay once. The whole crew was chasing their tails for hours on a bad mix. Turned out the scale was just zeroed wrong the whole time, adding like double the clay. Sometimes the answer is right in front of you, just hiding in plain sight.
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robin65812d ago
Wasn't there a story like this with a bad pallet of resin? My friend's shop had this core shooter that just kept making weak cores that fell apart. They checked the machine pressure, the sand blend, everything. Took them a full day, and a call to the supplier, to find out the whole pallet had been stored next to a heater and was basically cooked before it even got to them. Reminds me of what @emma_hayes80 said about the scale being off, how the problem is often something dumb you'd never think to check twice. Makes you want to kick a barrel sometimes.
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