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Spent 6 hours chasing a porosity problem in my cast iron yesterday
Turned out my sand was just 2% too damp and it took me half the shift to figure that out, anyone else ever waste a whole day on something that stupid?
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hugomurray4mo ago
2% off and it takes six hours to catch that. That's brutal. Did the sand feel super heavy in the muller or were the castings just blowing gas in a weird spot? I've had green sand that was a little too wet make a bunch of pinholes near the thick sections but never that long to figure out. What were the castings you were running, engine blocks or something smaller?
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alex3074mo ago
Funny how that works. Same pattern everywhere. Grocery store runs, home repairs, work stuff. By the time you notice something's off you're already six hours deep.
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grantmartinez4mo ago
Yeah @hugomurray I gotta push back a little here. Six hours to catch 2% off sounds like a communication breakdown more than a sand problem. Could be they just didn't have a good check system in place, nobody watching the muller close enough.
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