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Tried a 1% boric acid mix in our green sand and everyone said it would ruin the molds
Our main guy swore it would make the sand too brittle and cause casting defects. I ran a small test batch last Tuesday with 50 pounds of sand, adding just half a pound of boric acid. The molds came out rock hard and the surface finish on the iron castings was smoother than our usual mix. It held detail way better on some complex gear patterns we were running. I think the old rule about boric acid being bad is just wrong for certain alloys. Has anyone else tested low-percentage additives and gotten a surprise like this?
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fionanguyen13d ago
That's how it always goes, people get stuck on old rules and miss out on better results.
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kelly47013d ago
Hmm, I get what you mean @fionanguyen, but sometimes those old rules are there for a good reason. They can stop people from making big mistakes in a rush for something new. Not every change is actually better.
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david_palmer13d agoTop Commenter
Yeah the part about old rules stopping big mistakes hits home. My buddy tried to skip the prep work on a big DIY tile job because the internet said new adhesives don't need it. Ripped out his whole kitchen floor six months later when everything cracked. He was so mad he followed a trend instead of the basic rules.
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