Boiling Steel EAF

[NetVoyagerOne]

This is actually sort of alarming to watch, as the mind wanders into frightful 'what ifs' about horrifying accidents. o,o

[The141335]

Aaaaaaaaaa!!! It`s a Hell!

[michaelmyres619]

if you were to fall into boiling steel, you would die so fast that you wouldn't know you're dead.

[XTrevvion]

wait ...the steel is boiling too?!

[BrainStirmKZ]

While any amount of current over 10 milliamps (0.01 amp) is capable of producing painful to severe shock, currents between 100 and 200 mA (0.1 to 0.2 amp) are lethal. Currents above 200 milliamps (0.2 amp), while producing severe burns and unconsciousness, do not usually cause death if the victim is given immediate attention. Now imagine what 50,000 amperes would do with a human body! :)

[japanesepoptart]

@BrainStirmKZ

Oh, I know exactly what it would do!

It would fry you into a fish stick.

[endimion17]

@BrainStirmKZ 50 kA can't make it through your body because it has a great resistance and the voltage is too low, only 330 V. The only reason we have such great current here is because the resistance is low, as it's an arc in molten steel.

There are electrolytic cells that operate at few amperes (which would kill you if they passed through your heart), but the voltage is few volts, so basically nothing happens if you touch the terminals.

It's a common mistake.

[mrcraig41]

One person's already fallen into this furnace ;)

[rossyboy1081]

Imagine if it got on your skin...

[HomeWreckerA1]

that must be really hot

[bobwrit]

@siprus atoms

[Zagroseckt]

looks like the soups done :)

[siprus]

i have been wondering what happens to metal when it boils. does it boil as ions or as atoms?

[ChicagoPrepper]

don't forget to salt it before boiling

[RODALCO2007]

@ChicagoPrepper LOL !!

[plasticspastic201]

yo VIP word to yo momma

[cortexedge]

boiling hell ^^

nice electric sound on the background

[physicmad]

all i can say is that would do a few thousand cups of tea....

[360fatcats]

i love that 50Hz humming noise

ware i live we have 60Hz 120V power

[RODALCO2007]

@360fatcats This is at 330 Volts 50 Hertz and 50,000 Ampères

[360fatcats]

@RODALCO2007 w00t

[Nivicoman]

@360fatcats A bit louder than a 100V 50HZ fluorescent luminaire with a rectifying tube (Japan).

[chargerfish1]

so that means that their is actually iron as a gas in that room, wow

[durandisse1]

That has got to be sooooo hot.

[chargerfish1]

@durandisse1 ik its like blue hot

[airdog77]

why it is needed to boil steel?

[RODALCO2007]

Scrap steel needs to be melted at a high temperature to get rid of all impurities like copper, aluminum, schredded tyres etc. which are removed as slag. When liquid, the steel gets poored over in another vessel which gets further processed in a ladle furnace where additives are added to get the correct grade of steel.

[airdog77]

so, other metals does not dissolve in steel?

[RODALCO2007]

They do, but to get a good quality steel all not wanted products needs to get rid of first.

Then when the liquid steel is of the correct carbon level, additives can be added to get certain grades of steel.

[airdog77]

i mean how other metals can be removed from steel if they are dissolved in. for example, it is impossible to remove sugar or salt from water by boiling

[RODALCO2007]

I think by weight. I'm a sparkie, don't know all about metallurgie.

The lighter metals become part of the slag.

Perhaps another YouTuber has the exact answer for it.

[DragonFlyback256]

@airdog77, i'm not an expert either but think about buoyancy / boiling point; lighter / less dense elements / compounds that probably don't mix well with liquid Iron, floating up on the surface like oil on top of water. Also, they may have lower boiling point so they just boil away leaving pure Iron back. Sort of like that.

[M1903A1]

Actually, you can. I don't know about sugar, but salt has a higher boiling point than water even though it is dissolved. Boil away the water and the salt separates out and is left behind.

They also can add other materials (limestone comes to mind) that will dissolve in the steel and act as a flux to absorb the impurities, creating slag. The slag is lighter than the steel and it floats on the top, so it can be tapped off first and removed.

[Nivicoman]

@M1903A1 Is this slag the same as what is used as road ballast or bedding for patios and walkways?

[brunoeuropa]

@airdog77 metals could be removed by oxidation (cromium, see ellingam diagram) or dilution (copper)

[pheobelives]

I'd love to see that

[lakewood85]

Beautiful! I love the electric arc sound in the background. The steel looks like water through the blue filter.

[Stabkill]

So does this thing just plug into a wall sock or hows it work?

[RODALCO2007]

50 tons of boiling steel doesn't get plugged into a wall. It is huge and has it's own big substation to draw power off.

[xXxmidgexXx]

Isnt all that buzzing coming from the arcs?

[RODALCO2007]

Correct.

The noise wasn't that bad, as I was in the control room.

[mermaidkiller]

Nice clip, however you can set the white balance correct by first 'filming' a white object lit by daylight through the same blue filter. I did this before taking electric arc videos through a dark green welding glass.

[RODALCO2007]

Bedankt voor de tip

[Peedlebum]

Jeez! That's a tad warm....! Any ideas on the amount of power the arc would be drawing? Great video.

[RODALCO2007]

Between 25 and 40 Megawatts.

[echoes707]

wow good way to dispose some body you don't like *********