Diy metal workers like you already know the importance of a sturdy crucible in your workshop.
Diy ceramic crucible.
To prevent your metals from being contaminated by an oxidized metal crucible you can make your own clay graphite crucible that can better withstand heat.
Silicon carbide clay graphite or diy steel crucibles which type is best.
This is just to see if i like casting metal.
Due to some of my experiments in filling 1lb propane tanks i have some empty tanks.
Until i decide to invest in good tools i needed a cheap solution.
While cutting into them is dangerous i decided to do just that.
Crucibles are indispensable tools especially when you love doing projects that need metal mixing and molding.
It is also a good way to recycle old materials thus protecting the environment.
Steps you must follow to cast a ceramic crucible.
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With a few household tools you can make your own ceramic crucible and begin melting things such as your broken jewelry and other scraps of metals that can be sold.
However when these crucibles are placed into a direct air blast usually a furnace they are prone to oxidation and will eventually fail.
The melting of metals is a serious undertaking for the home hobby foundry worker your personal safety well being could be jeopardised if you choose to use poorly made thin walled mild steel crucibles.