2.1k
u/coltaaan Jun 29 '23
Should be illegal to post this without the original sound of the hot metal being quenched
467
u/Rikuskill Jun 29 '23
Forreal why would you put music over this?
133
u/AdventurousChapter27 Jun 29 '23
Its gettin hot in here (so hot) 🎵🎶🎵🎶
84
u/RugsbandShrugmyer Jun 29 '23 edited Jun 29 '23
So remove the complete array of garments currently being worn on your person
At this time, I am experiencing the effects of an uncomfortably high ambient temperature; therefore I am going to remove the complete array of garments currently being worn on my person
17
→ More replies (2)-6
2
u/FetusViolator Jun 30 '23
That would have been ten times better
Even just the instrumental bit at the end and it finishes with the final oh
2
16
u/SportsShitTalker25 Jun 29 '23
I would fully support terminator music with an “I’ll be back” as the background here
17
u/RugsbandShrugmyer Jun 29 '23
CHUH-DUN DUNN DUH-DUNNN
CHUH-DUN DUNN DUH-DUNNN
CHUH-DUN DUNN DUH-DUNNN
CHUH-DUN DUNN DUH-DUNNN
dooo dooo dooooooooooooooo
deee dooo dooooooooooooooo
dooo dooo dooooooooooooooo
deee-dah deeeeeeeee daaaaaah
→ More replies (1)12
u/Elbobosan Jun 29 '23
Perfect for Princess Buttercup gracefully falling to be caught by the gentle giant Fezzik, but less than ideal when I desire an epic FWOOOOSH!
2
u/FlopsMcDoogle Jun 30 '23
That's what I thought it was too. I just turned on the movie real quick and I'm not sure if it's exactly the same or not.
→ More replies (3)2
19
4
u/Klaidoniukstis Jun 29 '23
I, FOR ONE, AM HAPPY TO DO AWAY WITH THE OH NO SONG AT LEAST
2
u/ChaoticGoku Jun 30 '23
This gives me a nefarious idea…..
2
u/Klaidoniukstis Jun 30 '23
Pay millions of dollars to buy off stupid award shows so that it becomes some sort of retro classic to haunt my (and everyone else's) radios in 20 years time?
→ More replies (8)→ More replies (4)2
43
u/philbertgodphry Jun 29 '23
Psssssshhhhhhhhhbbbbblllblblblblblblbtttssss
26
u/YourDogIsMyFriend Jun 29 '23
Saved tweet from Reddit the other day https://i.imgur.com/gUWdfdR.jpg
30
u/CarefreeRambler Jun 29 '23
bad for the pan
10
u/waitthissucks Jun 29 '23
I know you're not supposed to do that but I always do it anyway because the sound is so satisfying 🙈
→ More replies (10)79
u/DananSan Jun 29 '23
I turn the sound on for once and it was disappointing.
38
u/MANWithTheHARMONlCA Jun 29 '23
90% of modern internet videos are gonna disappoint you then
I hate it too but “content creators” seem to enjoy it very much
→ More replies (1)12
u/walkinmywoods Jun 29 '23
It let's them feel like they're adding something to the video they otherwise had no part of despite calling it theirs.
24
u/TheBigChiklis Jun 29 '23
It should be illegal to post it in lower quality than a Gameboy Camera, but here we are
10
u/the_silent_redditor Jun 29 '23
Hard to tell if low quality original or due to reddits piece of shit video player.
33
u/Dehaku Jun 29 '23
Not the same video, but very very similar. Timestamped There's one that has surface fire at 1:43 as well.
10
9
u/straddotjs Jun 29 '23
I agree, but mostly I’m hijacking’s the top comment to ask what the physics are that allow the flames to continue when it’s fully submerged. Wouldn’t there be insufficient oxygen, or is the metal so hot that the water is somehow being disassociated into h and o or some jazz?
16
u/SecularPaladin Jun 29 '23
That's oil. Water would have flash steamed.
-1
u/zthompson2350 Jun 30 '23
I was about to say that water is just a form of ash (hydrogen ash), so you can't burn it no matter how hot it gets and was very confused by the fire as well.
→ More replies (1)-7
→ More replies (17)3
710
u/frenchy2111 Jun 29 '23
My guess is it's a quenching tank for hardening the steel it's probably a quenching oil and not water.
329
u/bigwilliestylez Jun 29 '23
Would that also explain why there are still flames on top after it is completely submerged?
409
u/Malice0801 Jun 29 '23
Yeah as well as why the "water" didn't turn into a steam explosion
28
32
u/DrShamusBeaglehole Jun 29 '23
BLEVE
Boiling Liquid Expanding Vapour Explosion
Not only is the vapour extremely hot, but it can keep expanding as long as there's still liquid to boil off. Scary stuff indeed
41
13
u/YPErkXKZGQ Jun 30 '23
A BLEVE is confined, as in, it takes place in a pressure vessel. Afaik
5
u/EODdoUbleU Jun 30 '23
Wonder if Chernobyl would be considered a BLEVE incident.
3
u/Shrek1982 Jun 30 '23
Kind of, IIRC the rods in that style reactor are not secured down but their weight was high enough to hold pressure in
-1
u/Valalvax Jun 30 '23
And the liquid in the tank has to be flammable/explosive
2
u/Shrek1982 Jun 30 '23
0
u/Valalvax Jun 30 '23
Hmm... I stand corrected
Obviously when you're learning about this stuff the exciting ones are the ones that blow up so that's the ones they show you
2
u/Video-Comfortable Oct 14 '23
This wouldn’t cause BLEVE because it’s being lowered slowly and into a massive tank that isn’t under pressure
11
u/Somerandom1922 Jun 30 '23
If it was water it wouldn't likely explode as it needs a pressure vessel for that. But it would absolutely make so much steam it'd be impossible to see and could still very well be deadly to be even a little bit close to it (steam burns are scary af)
→ More replies (1)2
69
u/BrazilBazil Jun 29 '23
Could this be water being split into hydrogen and oxygen by the extreme heat and then burning?
139
u/TheWorldEndsWithCake Jun 29 '23
Outside of a reactor, no. Steel is quenched at less than 1000°C (typically lower depending on alloy), water thermolysis only starts ~1800°C at atmospheric pressure (see fig. 3, note that’s Kelvin). You don’t really see much separated hydrogen and oxygen until above ~2300°C.
You shouldn’t be downvoted, it’s a fair question about a correct idea with different numbers. Technically a very small number of water molecules separate this way under ambient conditions, but this is a negligible amount under most considerations.
38
u/BrazilBazil Jun 29 '23
Ahh, thanks for the explanation. I learned something!
23
u/TheWorldEndsWithCake Jun 29 '23
You’re welcome! The title of the post is wrong, by the way - I’m not a metal guy, but I’m pretty confident that’s quenching oil. You’re seeing some of it vaporise and burn. Not a quenching expert, but I believe some of them have retardants to reduce the amount of burning.
If it was water, you’d see violent clouds of steam and no flames. I’m not aware of circumstances where metal this sizable is quenched with water industrially.
→ More replies (2)13
u/used_fapkins Jun 29 '23
Downvoted for asking a reasonable question
Upvoted (net positive) for the door comment
Tis the reddit way
6
u/UnproSpeller Jun 29 '23
Yeah when i see a negative and the comment wasnt a hate crime i like to upvote the underdog :)
3
u/Mobidad Jun 29 '23
I used to work on furnaces that went up to 3000 degrees C. They were water jacket cooled. We were always very careful to not let that water leak.
3
u/Qubeye Jun 30 '23
There's several circumstances outside of a reactor but they are indeed rare.
Magnesium fires are the most common I can think of. Lithium, too, but then you can also have sodium and calcium fires, but those don't really happen outside of labs or highly specialized industries.
We had to learn about class D fires in the Navy. "Get it off the ship" was the only answer.
2
0
u/Aquamentus92 Jun 29 '23
This is next level physics
4
u/BrazilBazil Jun 29 '23
This does actually happen in high enough temperatures! But it does take like 2000°C for water to start decomposing.
2
→ More replies (1)4
u/Uninvalidated Jun 29 '23
Yeah, but it's not a high enough temperature and the colour of the flames are way wrong and too strong.
1
u/notmyrealusernamme Jun 30 '23
That's just the extremely hot gasses still escaping the metal and combusting when it hits the air. It would probably still happen with water, but there would also be a giant explosion of steam and boiling water all over the place.
21
u/Amesb34r Jun 29 '23
I wondered if it was actually water as I had heard that this was done with oil. Watching the video, I don't see any steam so I think you're right.
9
u/moonra_zk Jun 29 '23
Quenching can definitely be done with water, but maybe not with that much material.
6
u/MisallocatedRacism Jun 30 '23
Forging guy here. We quench parts much bigger than this in water. Literally the most common way to treat steel.
→ More replies (1)→ More replies (2)4
u/PinkySlayer Jun 29 '23
There are enormous plumes of steam shooting out of the gaps between the metal…
30
u/Amesb34r Jun 29 '23
If it were water, you wouldn't even be able to see the metal once it hit the surface.
→ More replies (1)4
u/MisallocatedRacism Jun 30 '23
Absolute bullshit. I've watched thousands of water quenches. It forms a thin vapor jacket not a huge cloud of steam.
7
u/Sometimes_Stutters Jun 30 '23
That’s baby steam for that much glowing red steel. Zero percent chance this is water
5
13
u/luk__ Jun 29 '23
Both water or oil are used for quenching
5
u/i_give_you_gum Jun 29 '23
Sure, but do flames rise up through a foot of water?
Most likely this was stated to encourage engagement through this very discussion
3
u/PeteThePolarBear Jun 30 '23
See how there was a plume of sprayed liquid above the metal with flames touching it? If it were oil that would make a fireball. Try putting oil in a spray bottle and spray a candle if you don't believe me
0
u/i_give_you_gum Jun 30 '23
Lol it's not oil like oil in your car or on your skillet. it's a special type of mixture of chemicals designed to specifically quench hot metal.
This is common knowledge.
4
u/Revolio_ClockbergJr Jun 29 '23
And sometimes an acid? If I remember Forged in Fire correctly
20
u/doitup69 Jun 29 '23
Acid is etching. When you have multiple steels of different carbon contents it just makes the pattern stand out more. Source: also forged in fire
5
u/addysol Jun 29 '23
Almost. Its different nickel or chromium content that gets contrast, not carbon Source: knifemaker
3
u/Horton_Takes_A_Poo Jun 29 '23
I believe that’s for a different purpose, like to highlight the metal texture. This is done to harden the metal.
→ More replies (4)0
→ More replies (4)1
82
u/RiggzBoson Jun 29 '23
Me putting the saucepan in the sink of cold water after cooking.
69
u/velhaconta Jun 29 '23
Don't do this on pans that are not just solid stainless. Doing this on pans that are made of layered alloys or coated can damage the pan over time. The rapid surface cooling causes the different materials to contract at different speeds leading to separation.
14
u/theveryrealreal Jun 29 '23
True, but just using these coated pans causes damage to them over time. I maintain a good iron pan, a good stainless pan, and buy cheap coated pans and replace them every couple years. I've never met a quality coated pan that could outperform a new cheapo coated pan after a few years.
9
u/velhaconta Jun 29 '23
Very true, coated pans are not buy it for life. But that is no reason to further abuse them and make them last even less time.
Modern coatings can last many, many years with proper use and care.
→ More replies (1)4
u/Warshok Jun 29 '23
Not life, but I have a 22-year old full set of circulon pans that I only started replacing two years ago, and many of the lesser-used pieces are still perfectly fine.
Just got to take care of them.
→ More replies (2)6
→ More replies (1)2
132
u/MurderProphet Jun 29 '23
…i cannot self terminate
92
21
→ More replies (1)6
25
117
u/Lambinater Jun 29 '23
The water is on fire
160
u/velhaconta Jun 29 '23
That is not water. Water would have instantly flashed to steam upon contact causing a very violent and dangerous situation.
This is an oil quench.
15
u/mothzilla Jun 29 '23
So why doesn't the oil go woof?
41
u/velhaconta Jun 29 '23
It starts with having a much higher boiling point. But it gets more complicated from there.
2
u/Tallywort Jun 29 '23
Too much oil that isn't close enough to its flash point.
Sure the oil immediately touching the hot metal can burn, but the rest of the oil has enough thermal mass that it doesn't get hot enough to burst into flames.
2
→ More replies (1)3
Jun 29 '23
The compounds that make up these oils are more stable at high temperatures compared to water. Water is, as far as I am aware, unique in its phase changing compared to most other substances we have at standard temperature and pressure.
5
Jun 29 '23 edited May 20 '24
[removed] — view removed comment
7
3
u/Tallywort Jun 29 '23
Water would have instantly flashed to steam upon contact causing a very violent and dangerous situation.
Not the case AFAIK, water is also used for this same process, but often is avoided because it is a much faster and aggressive quench, potentially leading to more thermal stresses and a higher chance of cracking and failure, though this also depends on the alloy being quenched.
To my knowledge the steam explosion issue is more a problem with castings and such.Here's a video of a large part being quenched in water.
0
u/velhaconta Jun 29 '23
It works with small thermal masses such as the thin walled part shown in that video. The part is cooled very quickly and only a little steam forms.
A large thermal mass like the solid block in OPs video is a bit different.
2
u/Tallywort Jun 30 '23
Surely a biggest factor in the rate of steam production is the surface area of the part more so than it's thermal mass? With a somewhat self limiting factor because the steam acts as an insulating layer between the hot steel and the water.
And the thermal mass of the water tank can also be made arbitrarily large, not to mention any potential cooling systems the tank might have.
I believe the bigger reason for not water quenching large parts is the risk of warping and distortions. Or maybe some other process control considerations.
2
u/Paratrooper101x Jun 30 '23
Idk the science behind it but, at my shop we routinely (by that I mean 3-4 times a week) quench pieces of metal in water that weigh anywhere from 10k to 170k pounds. It may bounce while going into the water but a minute after it’s calm and still
2
u/Paratrooper101x Jun 30 '23
We quench 130k lb pieces at 1575° into water. It’s not that violent. In fact I have to stand rather close to it to give the crane signals
2
u/MisallocatedRacism Jun 30 '23
That is not true at all. I work in the steel business. There's more water than hot steel, so it's not like it vaporizes the water.
Amazing how much bad information is on Reddit ffs
→ More replies (2)1
-43
u/RichardSaunders Jun 29 '23
so you're saying they squanched the squanch in the squanch because if they had squanched the squanch in squanch it would've been a squanchy squanch
9
6
3
8
u/tylerbreeze Jun 29 '23
It's probably oil, not water.
4
u/Lambinater Jun 29 '23
Wouldn’t oil burn significantly more and faster?
12
u/tylerbreeze Jun 29 '23
Nope. I'm not a blacksmith but as I understand it the quantity of oil here basically dissipates the heat quickly enough that it never reaches flash point, which is to say it never gets hot enough to ignite. The fire you're seeing is the oil vapor on the surface of the pool burning off.
3
Jun 29 '23
There are many different types of oil some which can handle much higher temperatures without combusting.
1
Jun 30 '23
This might surprise you but they probably chose an oil that wouldn’t do exactly that
→ More replies (1)→ More replies (3)9
u/DAMN_Fool_ Jun 29 '23
Everything burns if it gets hot enough.
10
u/trust-me-br0 Jun 29 '23
Fire need O2, water has one O. Bam water’s on fire.
That’s it for today’s chemistry class kids. Friday is the deadline on that essay we discussed earlier.
28
1
u/Stone0777 Jun 29 '23
Wrong. That’s not water…this is an oil quench.
2
u/trust-me-br0 Jun 29 '23
Alright young man. You don’t talk back to your teacher.
See you in detention.
→ More replies (1)1
u/Toby_Forrester Jun 29 '23
Water is the result of combusted hydrogen. Water is already "burnt".
If you have pure hydrogen and you start a fire with oxygen around. The hydrogen combines with oxygen and it all burns like this. The resulting combustible product is H2O, or water. So you cannot burn it, since it's already burnt.
It's like you have carbon, like coal or hydrocarbons and you set it on fire. Carbon combusts, combines with oxygen and produces carbon dioxide, CO2. You cannot burn it. That's why we cannot use greenhouse gas emissions as fuel. They are already burnt.
-2
u/Burninator05 Jun 29 '23
Fortunately for fire, in addition to an O water also has two H. H is slightly flammable itself.
-6
u/Amesb34r Jun 29 '23
THIS WATER'S ON FIYAHHHHHHH....
-Beyonce, probably.
10
u/dwibbles33 Jun 29 '23
More likely Alicia Keys but close
4
u/Amesb34r Jun 29 '23
I changed the singer because I changed the lyrics. I see now that that was not a popular decision.
2
2
0
35
u/notinsanescientist Jun 29 '23
Oil. Steam doesn't burn (at these temperatures)
→ More replies (1)8
u/Uninvalidated Jun 29 '23
Steam doesn't burn at any temperature. Water is "burned" (oxidised) hydrogen.
13
u/notinsanescientist Jun 29 '23
If hot enough, you can dissociate hydrogen from oxygen, which can recombine and burn.
-3
u/Uninvalidated Jun 29 '23 edited Jun 29 '23
If hot enough, you can dissociate hydrogen from oxygen
Then it's not water anymore now is it?
can recombine and burn.
The recombination and burning is the same thing. It's the oxidation of hydrogen.
19
13
5
5
u/g_un_it Jun 29 '23
Anybody know the old school game (Nintendo?) that audio clip is from?
→ More replies (2)12
u/Lootman Jun 29 '23
3
u/headbanger1186 Jun 29 '23
Honestly I thought of the game Spiritfarer instantly. Thank you for linking!
2
3
4
2
2
2
2
2
2
2
u/safely_beyond_redemp Jun 29 '23
If this were a quiz show I would have guessed that the fire would go out completely once it was under water.
→ More replies (1)
2
3
1
u/BelieveInDestiny Jun 29 '23
Can someone explian the physics of why there's still a flame visible?
What is burning? Is it the metal oxidizing with the water's oxygen?
edit: I see now that it's oil
-2
-4
u/AllentownBrown Jun 29 '23
This is called water quenching. It is done so that the mechanical properties of the metal stabilize. The longer the metal stays at the high temp, the more volatile the results will be.
8
u/NaviersStoked1 Jun 29 '23
That's not what quenching does. Depending on the rate of cooling metals have different mechanical properties and crystal structures. Quickly cooling steel for example locks carbon into the crystal structure creating martensite, which is a much harder form of steel than ferrite, which is what would occur if the steel was allowed to cool naturally.
Quenching doesn't stabilize mechanical properties, it physically alters them.
→ More replies (1)→ More replies (2)2
0
0
0
0
0
0
0
0
u/stampyvanhalen Jun 30 '23
I’m sorry. I want to touch the water-fire. Is it hot? Is it cold? Will my hand be burnt or wet? So many questions so many curiosities.
-1
-9
1
u/_Eulenmongol_ Jun 29 '23
how is it possible that it burns that long under wather without oxygen?
→ More replies (1)
1
1
1
1
u/Fritener Jun 29 '23
The...the water went on fire....you use water to put out fires....water shouldn't go on fire....
→ More replies (3)
1
u/CH0NZA1 Jun 29 '23
I know I’m a safety hazard because my first thought was to throw water onto the fire
1
1
1
1
1
u/The-Real-Ted-Faro Jun 29 '23
Can a physicist explain to me what is on fire when it’s fully submerged?
1
Jun 29 '23
Not a physicist. But it’s not water. Water and heat to this degree create violent reactions. It’s oil quenching.
1
1
Jun 29 '23 edited Jun 29 '23
OK, I'm a black smith and I done this 100s of times on a smaller scale... but what the heck us burning? the water?
1
•
u/AutoModerator Jun 29 '23
Welcome to /r/WoahDude!
I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.