Which CRUCIBLE should you use for melting Metal?
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- čas přidán 5. 07. 2024
- Which CRUCIBLE should you use for melting Metal?
Deutsches Video: • Video
There are many different types of crucibles. Depending on the intended use, different crucible materials are required. In this video I tell you about the strengths and weaknesses of the most common materials. - Věda a technologie
Clear, concise, informative, well presented... GREAT VIDEO!!! Thank you for your time and knowledge.
Ditto!!!
Thanks!
Excellent and clearly explained. Thankyou. Just what I needed.
Thanks for the information. I was about to spend some good money and time on acquiring a steel crucible. I appreciate the heads up!
thank you, i will put this information on a poster in my shop!
The only crucibles I can find for the small hobby induction furnace I have are graphite. Yes, it's supposed to be for jewelry making, but I'd like to try heating some steel by putting a cover over it, evac'ing most of the air and then filling it w/ argon for the actual melt. Any suggestions for alternative crucibles that won't just convert the steel to cast iron [& use up the crucible in the process?]
Thanks for sharing
Excellent thank you
good explanation
could u coat the graphite crucible with that graphical cement you mentioned to strengthen them from them breaking in the future? i have seen and heard issues with them only lasting 4-5 burns idk if its just trash materials, but could u link the type you used, plz and thank ya
I like your info ill def sub
hello can you tell me what crucible should i use for antimony melting?
Please help me with the process to make aluminum crucible for platinum
Can Aluminum oxide crucible be used in charcoal/coal or propane foundry or it can be used in induction furnace only? Why don't you use Aluminium or Zirconium oxide crucible to melt cast iron, as these crucibles don't get oxidized and don't eat iron as the graphite crucible you use does?
please recommend especially for Zic alloy
Which can be used for steel/iron
Interesting video!!! But i have two questions,
1, can i use ordinary quartz sand to make crucible?
2, can i make centrifugal casting crucible by using quartz????
Where can one buy these things in Austria? As I don't know of any seller here or are you buying it from someone online?
it's wonderfull can u help me to get graphite crucible
What about porcelain crucibles?
gday from australia man just wondering in what way does a steel crucible contaminate the melt and would this be bad for lead fishing sinkers
If you just melt lead, than a steel crucible is fine. Aluminium and Copper would be a problem, because they dissolve iron from the crucible.
Hi...the quartz crucibles, do they all need to be glazed also....for use with silver?
Yes ,it is much for there lifetime if you glazed them first with borax.
Hey, do you know if I can use a ceramic crucible for melting steel? Thanks
It depends on the type of ceramic. Al2O3, MgO, and ZrO2 should be fine, but I wouldn't use them in a gas furnace. Porcelain and fireclay melt at a temperature similar to that of steel. I would use a clay graphite crucible for steel.
@@SomeAustrianGuy Thank you for the information, I will be using the crucible in a charcoal furnace. The company from which I ordered the ceramic crucible told me it will withstand 2000C and it should be fine for steel but would probably only last one firing.
Would you put refactory cement on the silicon crucible
I paint a bit of refractory mortar on all of my crucibles, just to be safe.
New sub.
Where did you acquire the zirconia crucible? I've been looking online for a retailer who sells them but I've had no luck. Any insight you have would be great!
I've had the zirconia crucible for a while. I got it from a local glass blower about 4 years ago. Unfortunately he sold his business last year and I have no idea where he got it from.
@@SomeAustrianGuy so then what would be the second best thing be to buy? and where would you suggest?
What exactly do you want to do with the crucible. Do you have a furnace or are you blasting the crucible with a torch?
@@SomeAustrianGuy I made a cylindrical coal furnace that I'm going to retrofit a propane torch sometime soon. I'd use it to melt all kinds of metals and their alloys (whatever crucible covers the most metals would be ideal). Eventually I'd be using it for precious metals as well. I don't know all the different factors to consider when it comes to crucibles but the parameters I do know and want are: good thermal shock resistance, chemically resistant to most metals and cleaning agents like borax (sodium borate, sodium tetraborate, disodium tetraborate and the like) and physically strong (this is more like a nice to have since I'm delicate with my stuff).
@@j4ck1eX3 You really don´t need a zirconia crucible for that. Clay graphite crucibles are a lot cheaper and will work fine. You can find them for ~20-30€ on eBay, I use them all the time. My larger crucibles are A6 crucibles, so you can get an idea of their size. I wouldn´t use the crucible for precious metals after you used it for other metals, you should get a seperate crucible for every precious metal.
Can Alumium oxide crucible be used in propane furnace? Do you have any experience with it? What is the risk of cracking?
These crucibles will very likely crack. They can withstand extremely high temperatures, but they don´t like thermal shock.
@@SomeAustrianGuy Thanks a lot. I would also ask about the protective cover you apply to the walls of the graphite crucible. Does it virtually stop the oxidation of the crucible if it is applied on regular basis? And doesn't it contaminate the molten metal being in contact with it?