Smeltkroezen: Difference between revisions
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= How to use crucibles = | = How to use crucibles = | ||
* Melting Aluminium? No, soda cans are NOT a good source of aluminium. | |||
** They may contain residual moisture, and can explode when dipped in molten metal. | |||
** They are covered in paint and coatings, and create a LOT of slag. | |||
* Do not pack/jam solid metal into the crucible! As it heats it will expand, and can crack the crucible. | |||
* After pouring metal, *always completely* empty the crucible! Clean out as much slag as possible. | * After pouring metal, *always completely* empty the crucible! Clean out as much slag as possible. | ||
* Keep dry, only store back into the samla when completely cooled off | * Keep dry, only store back into the samla when completely cooled off | ||
Revision as of 21:40, 26 May 2018
Our crucibles
The seller of 5L crucible claims "Ze zijn geschikt voor het smelten van metaal tot 1100°C". Silicium Carbide ( SiC) crucibles all over the internet are all rated up to 1500-1600 °C. No reason to believe that ours is any different. I suspect this is a non-techie way of saying, only non-ferrous metals. At Revspace we do not have the means of achieving temperatures above the rated max. If you are serious about melting cast iron or steel, you probably know what you are doing anyway ;)
How to use crucibles
- Melting Aluminium? No, soda cans are NOT a good source of aluminium.
- They may contain residual moisture, and can explode when dipped in molten metal.
- They are covered in paint and coatings, and create a LOT of slag.
- Do not pack/jam solid metal into the crucible! As it heats it will expand, and can crack the crucible.
- After pouring metal, *always completely* empty the crucible! Clean out as much slag as possible.
- Keep dry, only store back into the samla when completely cooled off