DIY Iron Furnace Build
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- Опубліковано 5 жов 2014
- I made a small furnace for casting iron and stainless steel.
It uses the same burner as my aluminum furnace but takes about 2 hours to heat up( a .75GPH nozzle is in the mail). If you wanted to save fuel simply coating ceramic blanket in santanite or Itc-100 might be better. I wanted something more robust, the refractory is very heavy and rated to 3000F. I should be able to push it a bit but the crucible won't quite cut it. I'll likely need one that's rated higher and can be capped and flooded with argon.
*********** CRUCIBLE - Purchased on EBAY -A10 Clay graphite
Fuel- Start on propane, than switch to diesel
I'm pretty happy with it and some of my castings have come out nice(video on that later) but they do rust quick unpainted.
If you have any suggestions let me know.
I got the Cast-O-lite 30 off ebay + some mizzou plus for plinths and the 2600F ceramic blanket
I made all the foundry tools with hardware store steel
The 10 gallon barrel was free and stays touchable even when the pour is molten!
This is really dangerous, the molten iron can go right through just about anything. Start with aluminum before going up to iron. The fumes are bad, the heat will melt flesh, the fuel tank could explode the crucible could rupture, the pour could hit water. You really need to be careful
Consider supporting me and my projects on patreon! / bennbuilds
**Note about my shoes: They are made of leather, plus they can be kicked off super quick, plus I tested them by pouring some metal on them and it was not a big deal at all, so I wouldn't even need to.
Its a small furnace in an open space that's really easy to run away from in the case of an accident such as a crucible rupture or spill, and no skin is exposed so I'm pretty safe from splatters.
Also, all the clothing can be removed really quickly, witch matters most to me. Its surprisingly hard to get metal to pool up and burn through clothing, especially when you can shake around. And if it does just pull the clothing off as you run away.
This is not a professional foundry where you can get trapped and there are thousands of pounds of molten metal around you. Danger scales, like everything else. Incandescent light bulbs get hotter than this, yes they burn down houses but you don't wear a fire suit in your kitchen. - Наука та технологія
Love to see younger guys who are into stuff like this. Gives me some hope for our future.
Very well composed video - efficient, no time wasting bits - short and to the point ! Gold Star for you, my Man !
I can tell you, this is the best design I saw by far. Its clean, more safe and has more durability.
Just for the record, a 7 minute video is nowhere near "way too long"
***** Not for something this cool, no sir it is not. :)
seven minutes is way too long
Especially considering that there was no fluff. 100% lean content!
That sentence was way too long; would someone TLDR it for me?
"This is so dangerous but it works!"
The perfect last words of a youtuber who made a video doing something dangerous lol.
My new favorite comment ever
That's cool, I made a furnace in the garden from bricks and mud for aluminium and copper melting.
you are one seriously mad scientist, I love it. you might want to have a more organized working environment so you don't tripping over stuff
Man it takes a lot to melt steel, much respect👌
I got the big brother to this thing in my backyard. 4200 pounds of fire brick and high temp mortar, 6 feet by 8 feet by 8 feet. Good video man.
You rock! I had tears in my eyes from laughing so hard at your brave ingenuity!
Thanks this a good chance to learn about furnus and improve the quality of our products
I don't know why I haven't found your channel sooner. Love your video
Dude got some mad metallurgical skills.
Great work! A few tips though, you're losing a lot of heat through those gaps in the lid. Also, if you're using a ceramic mold that you plan on breaking, I'd add some sand and bottle glass to the metal to help remove slag from the mixture. Other than those things, there isn't much else to say. Be safe, and have fun!
BenNBuilds I like the way you edit your videos. A good, quick pace.
most impressive casting video I've seen to date.
I use a throw away fat 80 gallon air compressor tank and still was not big enough ! I'm gonna try a 42" inch wide steel covert pipe next time . That should fit my needs well . Thank you for the upload ! Very educational !
This kind of stuff blows my mind. defiantly interesting!
dude your funace look awesome, those spinning fire are great
amazing bro,it's the first time I saw someone to make a home made steal foundry.And it's work ^^
great work Ben N
Should weld some handles on that lid.
glowing like the sun
I will say when u have the right tools ect it makes this job so much more easier and better
I would love to see some of your more succesfull castings.. :) I really enjoy your channel. :)
U guys r the real deal-men of steel
Congratulations !: BenNBuilds several years looking for a free tutorial on how to smelt iron at home? and most were books that were bought and I lived far away. I really admire you greatly and I thank you for sharing your experiences. It shows that you are a young person generous heart. A big hello from South America. Why do not you try making a pot to cook? just like the ones worn by cowboys Wild West, Are you up to it? I'll be waiting. The best for you. Keep making videos, ok?
dude nice editing, kept me interested
Nice work man!
A furnace, using wool and coatings like ITC-100 are QUICK cookers.,and are better for the occasional cook up. The fire has only the crucible and contents to heat up.
A furnace made using a "castable" is better for LOTS of cooking ,over an extended period. It takes a LOT of Energy (Fuel), just to heat the furnace up, before we even start to heat up the crucible and contents.
and edit. Cast iron weights, are great cast iron, soft gray, and can be found cheap.
+aubreyaub Yes!
Most definitely, its all about the thermal mass of the furnace.
Ooh, cool, you cast steel and iron, unlike many other youtubers.
Damn that crucible you just slapping it around lol. Pretty tough.
How many pounds of Cast-O-lite 30 did you use?
I seem to remember from shop class that our crucible 'pouring' handles had a simple 't' welded to the end for better control. Helped apply torque and control the speed of the pour. I could not see if your handle had such, but I figure that 'more control' equals 'better pour' and 'more safety'.
awesome build.
First youtuber with the guts to actually melt iron.
That’s awesome man I hope to see some stainless later!
Great video
these videos make me want to get in the shop xD
Good show, thanks for sharing!
thanks for showing us how a drill works! Der.
Wow you reinvented the Bessemer furnace!
I have worked in foundries pouring iron and steel that being said you could get most of the protective clothing and other gear from the harbor freight welding section relatively cheaply
Hi,
i just had a question, im plannign on melting steel, but all the crucibles i find are for melting non ferrous metals like copper and aluminum, what crucible would i need to use for melting steel and iron?
Good job. Very nice.
Great vid, liked and subscribed. And as others have said the video is nowhere near long
What material is your crucible made from? I've been told that graphite crucibles aren't strong enough to handle the temps needed for melting Iron and Steel.
Finally a guy that doesn’t make vids for the money
Hey that's not true I made like $70 off this channel!
I'm just starting to learn how to forge so I can get set up with everything I need to melt stuff. I plan on using a steel fire extinguisher for aluminum but don't know what I need to melt steel and iron in? Any help in advance would be great.
Great stuff
This is impressive. Do you plan to do more videos like this?
Nice video! I would like to see more details of your burner and also what kind of crucible you are using. I've made the mistake of using a graphite crucible before and it ended up dissolving in the iron.
Great video thanks. I understand the butane torch but at1:34, you said "Diesel for another 2h" how do you heat it up with diesel?
very cool man
I love your videos!
Thanks!
Why did you use mizzou plus? How many bags of cast-o-lite did you use? And can I use cast-0-lite to make a crucible?
if you plan on going with an o2 boost please go with at least 3200 preferably 3400 deg f refractory. also make sure your burner is all brass and it stainless. the flame from an o2 boosted diesel burner can hit 4500 plus f. if you do use it try and wait till the end to quickly ramp up to pour.
good job dude
Good for you young man!
I have seen someny Ideas about furnus this will be useful to improve my knowledge and skills
Is your crucible made of graphite?
And where did you get it?
And does it take less time using the ceramic blanket rather then cement?
Fantastic !
i think the reason youre getting dross in your casts might be that youre not fluxing your casting material.
that helped me a lot. thank you.
If you was to pour some molten iron onto a silica refractory insulating firebrick, would anything bad happen? Could it contain it. I need to know of a good way to have a body of molten iron, but instead of pouring it , I need to drip it , And I need to have Two separate spots where it drips from, but coming from one molten body of metal.
I was thinking use a firebrick like a trough with holes on each end, good or bad idea? Also is there a certain size of hole that will cause dripping instead of a pour? Not allowing a pour even when trough is full!
How hot does the exterior of the furnace get? Like iif you were to touch it on the side?
what did you use to make your refractory cement? Please
Please , why heating fresh refractory cement with torche or diesel ? Can I leave it to dry without using fuel ?
thanks for the info, on the cast-o-lite 30, so incredibly useful :)
How do you forge stuff that has to be forged over 3,000 degrees F?
what did you use as a blower to supply air?
Okay! How do you even get the flame hot enough to melt steel?
Where did you buy ferrosilicon?..in its absence, what can it be replaced with?
Is it really can melt IRON ?
Can getting 1500celcuis and more ?
which is the maximum temperature that you can get with this furnaçe?can you reach 3000f?....or maby not?
I like the content. It’s insane, I would never consider casting iron.
How long did it take to melt the iron?
you are the man Ben , kicked its ass if i do say so myself
How thick of the cast o lite did you use
Where is information on your burner? Did you buy it or build it? I didn't see a video on it on your channel.
thanks! i dont know why i didnt think about it before
Would it make sense to dip those casted iron parts in oil like the people do who make swords and stuff? Would that make that iron more elastic and harder to bridle because more carbon would bind to the surface of the cast? Just wondering is it smart to cool the parts with water...
Quenching is used to harden metal yes, but swords and the like are steel not iron and are forged not cast. Quenching cast iron is a no no it can crack or worse shatter and if done in oil = flaming oil/hot metal eruption.
did you mix the cast o lite 30 and mizzou plus for bottom and side of foundry? Cause i just got the cast o lite 30 and followed there direction but it made the refractory clay turn like soup very watery.
+12345boehm I used Cast-o-lite 30 for the whole furnace. I only used mizzou plus for the plinths and caps
You really need to be careful when mixing cast-o-lite 30. If you ad too much water it just becomes useless, it takes a ton of mixing, too. You really kinda need a powered mixer in there for about 5 min straight, otherwise it looks too dry, than you add too much water and kinda mess it up
+BenNBuilds ok thanks
Hello! What material is your crucible made of?
Hey man what brand are you using for your crucible? obviously it's rated for ferrous metals but I just wanted your opinion on what crucible I should buy
+Brice loy Clay graphite, It's in the description
Dont give up, great vid, nice furnace, you can put your bottle of gas in water to keep th epresure up
ben what is that bucket made of please tell me
could that thing melt metals like vanadium & molybdenum?
Very cool
*Just this once, the Six Million Dollar Man bionic sound would be good here*
Hey Ben your doing a great job, and I need advice with a blast furnace I'm constructing, I bought a lot of fire bricks and was wondering if cast-o lite 30 would make a good mortar for the bricks
Yeah,i guess so no, its a castable refractory so it won't spread very well. I would use some of this www.ebay.com/itm/Refractory-Mortar-SUPER-DEMON-AIR-SET-WET-50-Pound-Pail-Service-Limit-3000F-/321355894111
But any high temperature mortar would work
Thanks, this may just solve my problem!
Yeah,i guess so how r u making the blast furnace please tell me please respond
That's amazing
cobalt goggles and you can see everything perfect bro. what did you spray on template?
One more thing, how long will the small propane tanks fuel it for and also how is this different from the aluminum furnace besides the refractory
I use diesel, it burns with more energy and is cheaper here. The propane is just to start it. It takes a little over a gallon of diesel to get a full crucible of iron hot enough to pour.
It would take multiple propane tanks just to get one crucible of the size I use hot enough. The aluminum furnace used rockwool rather than ceramic blanket and also had silica bricks inside the refractory, in addition to the refractory upgrade.
If you will be using straight propane for your furnace just get the highest temperature ceramic blanket you can and use that as the only liner, maybe throw a little ITC-100 on the inside but just ceramic blanket works fine even for iron casting. The reason I use refractory is I want it to last for a long time and its very useful for multiple firings.
A ceramic blanket lined furnace will heat up a ton faster and save more fuel than one with refractory. It just depends on what you are using it for
Can you link me to where exactly you got your ceramic blanket? I can't seem to find one that matches your description or even close to it
I hope this helps.
www.amazon.com/dp/B01BTTKDFM/ref=cm_sw_r_fm_apa_i_rT5zEbXS2E13M
Where do you get the 3000° castable refractory? I'm building my first furnace and all I'm lacking is refractory and kaowool. Any help is greatly appreciated. Thanks!
Here's a god place to get some, www.hightemptools.com/castablerefractory.html
Ebay has tons of ceramic blanket, too
did you use extra oxygen gas in this system?
at 4:41, the thing you pour the hot metal into it (what is it called anyways?), how come you made it out of wood, wouldn't that make it a poor choice of material as the hot metal would just burn it?
You should add some scrap aluminum to the iron while it's molten. It will lower the slag and dross content, lower the carbon content and melting point, deoxidize the iron and also harden and strengthen it
Full length heavy leather apron might be a good addition. One piece woolen long johns can save your skin.
what do you you use for your refractory? i'm trying to figure out which mix gives me the highest temperature tolerance
Solowarrior1221 cast-o-lite 30
It's made to take 3000F