Trying to build a melting furnace

[100kwh-hunter]

I am casting metals for 40 years+ now, mostly on gas.
The last 10 years i am casting with temps over 600C to max 1400c, before that all below 700C
( i can even form and melt glass!)
I bought a very satisfying gas furnace 10 years ago, but the noise and the gas prices.....
So heck why not, YouTube electric melting furnace.

Several are using this one, that i received today, matter a fact someone posted this link to melt at 800C for aluminium.
But it is stated for "just" 400C.

8.0US $ 50% OFF|Digital Pid Temperature Controller Rex-c100 Rex C100 Thermostat + 40da Ssr Relay+ K Thermocouple 1m Probe Rkc - Thermometer Hygrometer - AliExpress

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Do i miss something or do i need to change something, havent tried it yet, i hope some of you have better understanding of the new electronic age then me.
Or will it just work fine?

With best regards Igor

 

[floydR]

http://www.hildstrom.com/projects/2014/12/electric_arc_furnace/index.html a large furnace
https://www.instructables.com/Electrical-Arc-Furnace/ a tiny furnace
both use carbon rods carbon gouging arc welding rods work. A thermostat like you posted should work, just needs a higher operating range maybe up to 2000ºc? <edit>depending on what you want to melt.
Later floyd

 

[100kwh-hunter]

Thanks @floydR but 2000c not yet? i am not willing (yet!) to force or hammer iron (1600C) to make medieval weaponry.
But i must admid it will be a nice addison to my hobby.
For now i only want to cast some copper parts(as they have the highest melting points of what i need) for some hobby projects(zandcasting) with brass alu zinc bronze and such, max 1250C(100C over eutectic state for copper)

But for iron it will be also a medieval black smiting, thanks for your thoughts btw, a arc furnace is not my game sorry, it will be the really old way, after that, i will see, i think you are right by then a arc will come in handy for smaller projects,
But to be honest: this is a not a field i am busy in yet, but the wish is there for over two decades...Also no knowledge gained in this field.
It sound promising.

So just as i thought a higher thermostat/thermo couple sensor will do the trick.
I ordered this one:

6.84US $ 43% OFF|High Temperature K Type S Type Thermocouple Sensor For Ceramic Kiln Furnace 2372 Fahrenheit 1300 Degree Wrp-100 Thermocouple - Thermometer Hygrometer - AliExpress

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Up to 1300C, i think this one will suit my needs?

Thanks and best wishes
Igor K

 

[floydR]

That should work fine. I also am interested in this field.
later floyd

​

 

[100kwh-hunter]

Well what do you want to know?
I am about to convert my gas operated oven to a electric one.
And i am going to convert a chimy also into a melting furnace for smaler projects.
What metal are you looking for to melt?
What do you want to cast?
Really fine metal objects for modeling( like my childish trains ) or more some ingots?
I can only advice for several metals and how there are casteble and sand casting(up to really fine!)

With best Regards
Igor

Ps be very careful, this is NOT a hobby, this is worse than collecting 18650's..it is a addiction...cast some bars and save them instead of money...