Refractory Clay Crucible
Refractory clay crucible. Old school stuff – fireclay mixed with grog, which is just clay that's been fired already and ground up. Cheap as dirt, honestly. And it works. That's why people still use them. You're not melting steel in these, but non-ferrous metals at moderate temperatures? Perfectly fine.
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Product Definition
Refractory clay crucible. Old school stuff – fireclay mixed with grog, which is just clay that's been fired already and ground up. Cheap as dirt, honestly. And it works. That's why people still use them. You're not melting steel in these, but non-ferrous metals at moderate temperatures? Perfectly fine.
Working Principle
You put your metal in the refractory clay crucible. Then you stick the whole thing in a furnace – pit furnace, lift-out, tilting, whatever you've got.
Turn up the heat. The clay soaks up the heat and passes it along to the metal inside. Now, silicon carbide transfers heat better – I'll admit that. But clay has thicker walls. That thickness holds heat, so you can even use it for short holding jobs, not just melting.
Features
- Handles high heat for continuous melting. No problem.
- You can heat it fast, cool it down, it won't crack on you. That's thermal shock resistance.
- Works with aluminum, copper, brass, bronze, gold, silver, zinc, all sorts of alloys. Doesn't corrode on you.
- Heat transfer isn't record-breaking, but it's steady. Even.
- If you don't abuse it, the thing lasts.
- Strong enough to hold the metal weight and take some bumps from handling.
- Sizes? Plenty. Standard shapes, custom – we've done all kinds.
Applications
Small to medium foundries
Melting aluminum, zinc, brass for hardware, castings, art stuff.
Jewelry and art casting shops – small scale
Gold, silver, copper. A Refractory clay crucible is cheap, so you're not out a lot of money if you screw up. Good for learning.
Schools and labs
Low cost, safe. Kids can melt metal without breaking the bank or burning down the building.
Scrap recycling
Low temp non-ferrous scrap. Melt it down, pour ingots. Simple.
Old school casting shops
The ones with older equipment, not a lot of automation. Clay crucibles fit right in. No fancy programming needed.
Customization
Size and shape
Cylindrical, tapered, whatever fits your pit. We'll make it.
Mix of clay to grog
Change the recipe, change the crucible. More grog gives better thermal shock resistance. Less grog gives a denser crucible. Depends what you're melting.
Wall thickness
Thicker wall holds heat longer but takes forever to heat up. Thinner wall heats faster but breaks easier. Pick your poison.
Pouring lip
V-spout, flat rim, whatever works for how you ladle. Some guys want a sharp spout. Some don't care.
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