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Doug Ayen

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no joy [Mar. 23rd, 2010|11:01 pm]
Doug Ayen
well, soaking the forge base brick in water didn't do anything; I've got it drying out now, will attempt to remove accumulated gunk once it's dry. I think I'll try sandblasting first, though I may end up just buying a new one (NC Tool sells one for $45.)

[User Picture]From: perspicuity
2010-03-24 03:06 am (UTC)
shoot it with a pellet gun for a while? :)

how about freezing it in LN2 or dry ice and ... temperature shoving it the other way... crack it off?

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[User Picture]From: blackanvil
2010-03-24 04:57 pm (UTC)
Since it's a ceramic base coated with a glass-like slag, anything that would crack off the slag thermally would probably also break the brick, which I'd like to avoid.
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[User Picture]From: pale_chartreuse
2010-03-25 12:55 am (UTC)
Have you tried muriatic acid? This is basically Hydrochloric acid, sold in hardware stores as a masonry cleaner. It's pretty cheap. You need to wear safety protection when working with it. It leaves a powdery residue when it dries, that you have to rinse off with water. Whether it works mostly will depend on what was the base of the original refractory.
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[User Picture]From: blackanvil
2010-03-25 09:05 pm (UTC)
Well, it's worth a try. I've got HCl in the shop for scale removal and etching, I'll try a few drops.
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[User Picture]From: ramblingheritic
2010-03-26 03:36 pm (UTC)

kitty litter

when I had too much flux on my base brick i put kitty litter in and scraped the kitty litter and molten borax out it did a decent job.
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[User Picture]From: blackanvil
2010-03-28 04:45 am (UTC)

Re: kitty litter

Yeah, I've been doing the scrape thing for a while . . . that 's part of the problem, I"m running out of base brick. That's why I want to clean off the flux and rebuild it.
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