/diy/ - Do It Yourself

>>1463973
What about alloys?

Alloys will melt at a higher temperature and those kind of "relativly small devices" will go only around 1150. So Is it a problem ? and most of all, can I trust specifications about the temperature max ?

In other word, are theu good stuff to melt small pieces of jewelry or are they just big toys ? because they are relativly cheap.

>>1463984
they're small furnaces and are good for melting small quantities of things that you don't want contaminated because they have little crucibles you can dedicate to a specific metal.

"Alloy" just means two metals mixed or dissolved together. It's like saying "mixture" or "solution". The melting temperature and other properties such as crystal lattice structure can change when you mix metals together.

Yes this is what I mean, technically, I could just melt "pure" metal because alloys will probably melt at a higher temperature.
Anyway, I think that if nobody here tell me they are crap, I will probably buy one and let you know guys.

>>1463997
Alloys almost never melt at a higher temperatur than the pure elements. Look at this for some examples:
http://pruffle.mit.edu/3.00/Lecture_36_web/node1.html

>>1464096
... Steel melts at a higher temperature than iron. Bronze melt at a higher temperature than copper or tin.

>>1464156
>Bronze melt at a higher temperature than copper or tin
No, pure copper doesn´t. See pic related.

>>1464156
>>1464641
And to add pure iron. What you mean is cast iron (4.2% Carbon).

I find this interesting. Can I cast 3D printed parts with this thing?

>>1464948
It should be possible if you actually have the skills necessary to do investment casting. You would be limited to alloys that don´t have a solubility for carbon though. Otherwise the crucible would get dissolved. One of these alloys is britannia metal:
https://en.wikipedia.org/wiki/Britannia_metal

>>1463984
yes they work. but graphite crucibles break after a handful of cycles. and they're not terribly cheap so you will want to actually make something that can cover the cost of the crucibles.

>>1465139
>graphite crucibles break after a handful of cycles
What happens to them? Is that the case for all metals?