How To Make The Metal Foundry . Steel Melting Furnace

How To Make The Metal Foundry . Steel Melting Furnace.
In this video, we show our longest-running steelmaking furnace project. The home foundry was made from an old gas cylinder. The furnace is designed for welding steel ingots and raises the melting point of steel. Unfortunately, the first start-up of the furnace was not entirely successful, namely the melting crucible burst. I think the subsequent swim trunks will be successful ... If you liked the video like it, do not forget to subscribe to the channel ... Thank you all for watching.
WARNING:
Foundries can reach temperatures in excess of 1,650ºC, which is well above the melting point of hobbyists. This project should only be attempted with adequate knowledge and training, proper protective safety gear, and in a fire resistant area with adequate ventilation. Use caution and common sense. Use of this video content is at your own risk.
#foundry #furnace #melting #knifemaking #fzmakingknife
0.00 preparation of the gas cylinder for disassembly
1:30 Disassembling the gas cylinder
4:55 fill the container with refractory mortar
6:00 Making a gas burner
10:08 Loading the crucible for trial melting
11:30 Let's see what happened (
Etsy : surl.li/wnyl
Facebook : surl.li/wrrh

[@fz-makingknives3663]

Thank you all for watching. If you want to support the development of the channel, please, like.

[@user-cz7gn6de6i]

Мало по времени держали? Или тут нужно больше чем в горне держать?

[@fz-makingknives3663]

Быстрый нагрев , лопнул тигель. Дальше не стали продолжать , все равно убежало бы)

[@user-cz7gn6de6i]

@@fz-makingknives3663 а я не заметил, что тигель лопнул

[@thelucondrix391]

For a tempature that high you may have to change crucible types like graphite would work much better for that, because it will get extremely hot also I love the design of it, really well done and even gave me an idea for a similar style, but I'll probably use a leaf blower motor because it's the same one that I've been using. Beautifully designed amd I look forward to seeing what you do with it

[@Huntrezz]

My God !!! Good thickness steel!!!

[@AngelSanchez-uf8ts]

I do appreciate your honesty because you do not hide the image when the crucible bursted. Aside from this, you made a great job.

[@NOBOX7]

but the temp of 3002 deg is a bit deceptive

[@azrealprophet]

I commend you for showing the crucible failing rather than redoing it for the vid you taught us even more that way thankx for the awesome vid

[@fz-makingknives3663]

👍

[@JBattler]

Since the "cat got his tongue" there wasn't enough information here to know what went wrong...so what did we learn exactly? This should have been named..."how not to make a foundry"

[@madunandanapathirana7611]

@@JBattler කදදඳද9ක9

[@ilia_poulariani]

Im sure its the liquid inside that got too hot for the crucible and bursted out

[@michaelbell6079]

Failure for one is success in the future for others !

[@luhnith7473]

Ton of thought, design and smarts went into this build. We all learn somehow and that shows here. More solid than any of my previous builds. Be safe and have fun!

[@nathansmith1085]

Adding an air shutter to the incoming side of the blower will give you better control. I absolutely love this channel!!

[@leighchristopherson2455]

So a couple of features I've seen on other kilns is one, a drain hole out the bottom. The kiln is placed over a bed of sand, that way if the crucible fails while the metal is in a liquid state it drains out the bottom and can be collected from the sand. Otherwise you need to get it out of the bottom of your furnace. The other was the barrel that makes the body, if you had done another cut and made a bottom the same way you have a top, then the centre section can be lifted off and the crucible picked up without having to reach down into a hot kiln.

[@chrishayes5755]

gotta coat it with itc ceramic. more heat efficiency and metal wont stick to it. if liquid metals gets into your refractory cement it will seep into all the pores. then it's scrapped.

[@Arthurian.]

This isn't a kiln, but a foundry. "Exactly the same, but completely different" is this situation.

[@ssouthboundpachyderm]

No need for a drain hole but you can if you want, if metal spills in the furnace it can be chipped away after it cools down and the refractory can be patched. Making a removable center section is bad news, trust me you’d rather have to reach down in to a hot furnace with your tongs than to blast your legs with 2000 degree heat. I ran a foundry for 20 years so I have some experience with this stuff 😉

[@ssouthboundpachyderm]

@@chrishayes5755 furnace walls should be cast with a layer of refractory over insblock which is high temp insulating foam blocks. Spilled metal will stick to it but once cooled down can be chipped away, it’s by no means trashed.

[@ssouthboundpachyderm]

@@Arthurian. its a furnace

[@vintageringsGarry]

From old book they ran blower to direct flow around the circumference not directly at the crucible. Great video I enjoyed your build , looking FWD to watching you re-melt and pour those bearings .

[@daveclarke6215]

From an old foundry man I couldn't agree more, and also bringing the temperature up steadily is always worth doing

[@ajablades9524]

Thanks a lot for sharing this video. It gives me a lot of ideas how I am going to make mine... Thank you again 🙏

[@fz-makingknives3663]

Thanks 👍

[@lovejcdc]

Great video and what a great looking forge. I bet you guys are going to enjoy having that.

[@fz-makingknives3663]

👍🍻

[@andrejohnson6731]

You are quickly becoming one of my favourite makers on KZbin!

[@fz-makingknives3663]

Thanks 👍

[@restorationh.i.a7139]

hi, i'm new to this business, can you see how i restore??.

[@Trevlee74]

I love how you show what can be done with an angle grinder and a cheap SMAW unit, and basic tools. You don’t need much to start and to build cool and useful equipment. So man people never start because they think they need thousands of dollars worth of tools and equipment. This is proof you don’t. You just need some skill and imagination. And the one thing you’re always in control of: Effort.

[@phuturephunk]

I kinda want to mail him some gouging rods. I mean he already has the SMAW, so he could make such clean cuts with the right rods.

[@cristianpopescu78]

That with cutting the tank filled with water can save many lifes. Hope people notice such things. Very ,very good Video! Respect!

[@HighWealder]

Yes, even if a gas tank is empty and cleaned, gas will adhere to the surface of the metal and be released by the heat of cutting or welding. A well known cause of fatalities.

[@njrasmussen5515]

I want to know what you use for your refractory cement if at all possible I made a forger few years ago it didn't last long the internal cement mixer I put in there melted and turned into like a glass lava rock substance

[@profesorbmg]

Buen intento! A no desanimarse. Son excelentes tus vídeos!

[@innerlight7018]

Love the scene, when attaching the handles. It's just magic. 😅

[@mohammadurgur953]

Nice to see, although lack of important information on what material used

[@RyanSmith-er8kw]

Hi, love your videos and you make amazing knives but I was wondering if you could show how you make your crucibles?

[@opusprimum7681]

Yay I also want to know!

[@clivelee4279]

Bad luck, a interesting and informative ,video, if you ever have to cast refractory concrete again, it's a good idea to vibrate it, as you cast it, I use a needle gun on the casing, it's amazing how much more goes in, thank you.

[@fz-makingknives3663]

Thanks 👍

[@sardcanada2640]

so the mixture he used was in fact concrete slurry with sand and no aggregate. and the white fluffy substance was an insulation of some kind?

[@CuriousEarthMan]

Was that propane fired with a PID controlled valve and a pyrometer in the heating chamber? How hot do you think you needed it? What is the solution to your unmelted shot? A bigger burner? The burner was that small tube, yes? Thanks for posting! Did you post a successful, subsiquent run? I haven't looked for one yet. Thank you!

[@LatinDanceVideos]

I like the valve on the fan to throttle air flow. My local mens shed is building a furnace, using charcoal, we need to modify the design to throttle airflow down a lot as the fan blows way too much air.

[@Thecando]

Looking forward to seeing it work in properly. Still a great job. Will you still forge out the semi-melted ball bearings?

[@fz-makingknives3663]

I probably need to make a vote, to uncoil these balls for me or not?)

[@josephdorey8458]

@@fz-makingknives3663 are they melted together or is it just glass sticking them together?

[@Canyonman44]

That semi-melted slug was cool looking! I hope you polished it up and kept it.

[@cpayne1757]

So are you using a standard propane tank for the fuel source? Thanks -

[@cieslaolsztyn8266]

Thanks! What material is that white isolation?

[@capitainejosephblackjobart2577]

What is your mix of pouder for the melting?

[@gurvinderkau1e5w18]

Really cool. Foundry working awesome. 👍👍🔥🔥🔥

[@fz-makingknives3663]

Thanks 👍

[@Charlielizard]

I'd put those bearings/balls in another small crucible and try again. All in all that forge looks incredible.

[@fz-makingknives3663]

You can digest it. Don't throw away such good stuff.

[@Charlielizard]

@@fz-makingknives3663 Exactly, don't throw away such good stuff.

[@restorationh.i.a7139]

hi, i'm new to this business, can you see how i restore??.

[@dragonlord6677]

I’m wondering if a double air flow would make it hotter

[@broot7425]

What kind of crucible are you using? I can't see them anywhere online. Also do you have a recipe for the powders you add into the mix of ball bearings?

[@aliasaila8818]

Den Tiegel macht er selbst. Schau Dir seine Videos an ;-)

[@medjour]

Does it work with propane or butane only? I mean if you are using the oxygen or not.

[@TV49]

Thank you for the great video. Have a great day 👍👍👍👏👏👏

[@shaunw666]

great video, I'd love if you could add captions, as to what you are doing, ingredients ratios etc.

[@jamesmihalcik1310]

Thanks for showing the process. I'm sure you will get it dialed in. I like your coal fuel process, your crucibles are perfect and so well made. Gas to fast?

[@fz-makingknives3663]

Thanks 👍

[@restorationh.i.a7139]

hi, i'm new to this business, can you see how i restore??.

[@MrMarcelpare]

Is there a specific reason for the inflow pipe to be that long? I've seen foot longs, but that looks like 3 feets at least?

[@widneyburton5559]

Awesome! I have been waiting for somebody to do a detailed tutorial on one of these!

[@fz-makingknives3663]

Thanks 👍

[@jedizero2]

kzbin.info/aero/PL4OM4-ADk9b-vVc4VSkYdTZfj2bMPSPmC

[@reneemills-mistretta790]

That was an amazing build. ThankQ for sharing!!

[@SonoraSlinger]

Hey, it welded. Pretty interesting and honestly very good to show happening.

[@weshgros5101]

Thank's for the video . 4.00 what is the white foam you put inside ?

[@user-eb8qi7jn6y]

Как говориться, отрицательный результат, тоже результат)

[@fz-makingknives3663]

Совершенно верно)

[@patrickpierre1779]

Beau travail et belle vidéo merci pour ta réalisation

[@nicolaslhardy2153]

hello, did you purchace the problem after this fail melt of miniballs ??

[@Abersabil78chm]

Génial.. Bon travail merci beaucoup

[@renaudavoine2291]

What is the model of your thermocouple? I can only find 1300°C degree on amazon :)

[@sebastianlightell8864]

Hey man thats some good work👍 i just finished building mine but still need to insulate it what did you use for concrete? I see you used ceramic fiber insulation and chicken wire I think?

[@pene204]

This was ages ago, still, he says in the description he used refractory mortar. I have some questions too, what's the little widget sticking out from the furnace? The one that looks like a little aluminum cube on a rod with a cable?

[@JW.C396]

Great production.

[@carnivorecheatday8334]

Someone please buy this guy a hole saw.... 😂 Awesome video. I'm a fan!

[@user-bm8ol4mh3p]

Класс. А я не понял форсунка просто с боку входит и все, не по центру? Они же там всякие крыльчатки неподвижные ставят, ну внутри трубы и по центру типо. А какая же температура в угольной плавильные?

[@robsonsantosOSO]

Your work is very good and the forge is impressive! But the flame heats up one side of the crucible too quickly and there is no time for refraction...😫 But "the flame still burns" 🙂👍

[@fz-makingknives3663]

Thanks

[@ufukgul3221]

thanks for the nice video, what is the powder you put in the little iron balls

[@jerichojoe307]

I noticed this video was made 8 months ago; yet in your most recent video you're still using the brick furnace. Is there a reason why you're not using this? Or is the brick furnace more efficient? Just wondering. Also wondering if you would do a video making crucible steel from drywall screws. I've seen you use other screws; but drywall screws are made from carbon steel so I don't know if it's possible without the knife being too brittle but it'd be worth a shot.

[@timothymuir5167]

Awesome build and nice way to use an old LP tank and I like the way you cut your fittings in with out using a drill bit, Thanks!

[@SLmetalmania]

Could you please let me know whether it is possible to melt titanium by using this type of furance

[@d4j4r58]

the crucible burst because the temperature went so high so fast? You're achieving a higher level of magic!!! Can't wait to see what legendary blades come out of that

[@restorationh.i.a7139]

hi, i'm new to this business, can you see how i restore??.

[@h7opolo]

i love your workflow and video style.

[@Siliconsnake888]

Are you using asbestos between the mortar and steel? Is there a safer alternative?

[@grantpickens2704]

What are the powders you add to the crucible, if you don't mind me asking, I figure the black is charcoal dust/carbon but what is the white stuff?

[@fz-makingknives3663]

Grafite, dolomite, glass

[@rigovalenzuela3402]

what is the three ingredients you use afer the steel? I love your knife making.

[@fz-makingknives3663]

Dolomite, grafite, glass

[@restorationh.i.a7139]

hi, i'm new to this business, can you see how i restore??.

[@ReviewLife380]

Sir could you please tell what was cotton like substance you filled walls with? Also composition of cement like stuff?? Thanks

[@ssouthboundpachyderm]

Kaowool or ceramic fiber insulation

[@iCeTePs]

Thanks for sharing :) I have a question: Why do you fill it with water before cutting if you emptied it?

[@RabBeverlyWasHere]

Remaining gas in the tank has to be washed out. Even after emptying it, some will remain inside, and a spark could set it off, causing injury or worse.

[@Spark-Hole]

What was it you use to reinforce the mortar, was it fiberglass? What was you mix with steel balls

[@goatspartan665]

Awesome content brother, I love the crucible steel you have made in other videos. It's a shame the crucible fractured in this one. I wonder if it's because the heat is directed to one side of the crucible via the pipe. Your brick coal forge has even heat around the crucible. It will be interesting to see future videos to see if crucibles are able to take the heat with this tank version. Is there any chance you can supply a recipe for the crucibles you make? Or an instructional video. The crucibles I've been able to make hold out to about 1100-1200 Celsius and I know high carbon steel wants about 1400. I don't want to spend money on graphite crucibles that I have to destroy to remove the ingot any help would be appreciated. Thank you and I love your work.

[@Skinflaps_Meatslapper]

If the graphite crucible is in good shape then you should be able to remove the glass by fracturing and then tap the ingot out with a little finesse. I believe he uses fireclay, mortar, and graphite for his crucibles but I don't know what ratios.

[@ilia_poulariani]

Try silica quartz ceramic crucibles

[@SuperTrunkspace]

Graphite isn't recommended for steels, carbon has a very high affinity for steel and the steel will eat away the crucible. Great for nonferrous metals though.

[@goatspartan665]

Yeah, thanks Trunkspace. My mistake I wasn’t referring to just the graphite ones, I know they are for non ferrous but you can buy the graphite/clay ones intended for ferrous metals. They gave less graphite and more clay however they are more expensive and that is what I was referring to. However fz has made an instructional video on how to make his crucibles so the problem was solved. Thanks for your input anyways 👍

[@ChristopherJones16]

04:48 wait wait what sorcery is this? Where'd that smaller pipe thingy come from? Is that for a type K thermocouple? 05:20 Is that refractory cement or plaster? What was that you added to the mix? Graphite? Last but not least that was a crazy looking concoction you were trying to melt... Did you make another video melting it again?

[@barefootblacksmith1471]

Great video. That much skill as a fabricator, but you have never heard of hole saws lol? Either easy awesome job!

[@Spark-Hole]

3/4 inch is maximum a hole saw can cut, you must be a newby

[@petryshchenkov2008]

Cool video! The main thing is not to give up! 👍

[@fz-makingknives3663]

We never give up)😁💪

[@petryshchenkov2008]

👍

[@EduardoPerez-ww4dh]

Hello, I want to know if the oven really reaches 1600°c, if it is used to melt steel

[@RandomEngineer]

Amazing Brother.I Also make One For Alumunium Melting.But Yours Foundry Looks Pro Edition.Great Well Tried.

[@fz-makingknives3663]

Thanks 👍

[@restorationh.i.a7139]

hi, i'm new to this business, can you see how i restore??.

[@RandomEngineer]

@@restorationh.i.a7139 Keep Trying Brother.

[@sonuverma2796]

Sir which material did you mix with plaster of paris

[@Smallathe]

Nice work! Looks great. A bit of tweaking and it should work just fine.

[@fz-makingknives3663]

Thanks 👍

[@aliasaila8818]

Dein Kanal ist der beste und interessanteste. Ich bin froh ihn entdeckt zu haben. Handwerkskunst aus Russland ist immer ein Highlight anzusehen.

[@fz-makingknives3663]

We are not from russia!

[@aliasaila8818]

@@fz-makingknives3663 Es tut mir leid ich kenne mich nicht aus. Woher seid Ihr?

[@fredneuschwanter5784]

That egg of steel looks like a dragon egg. Looks cool

[@fz-makingknives3663]

Thanks 👍

[@davidwillard7334]

And Monkey ! Came out of it !

[@benkayvfalsifier3817]

What was the gas you used to fuel the forge?

[@guidobottos841]

Grande ! Che tipo di termocoppia hai montato ?

[@jeremycable51]

How did this do I’m wanting to be able to make my own castings in bronze aluminum and iron

[@jmbgouveia]

what are those crystals at the end?... Thank you and hugs from Lisbon, Portugal.

[@outstandingthetamail3256]

Ellerine çok sağlık güzeller güzeli kardeşim !

[@johnathanelliott5143]

Awesome content could you do a video showing how to make a crucible?

[@fz-makingknives3663]

Watch previous videos, everything is shown there.

[@dwighthayes4738]

Excellent work.

[@fz-makingknives3663]

Thanks 👍

[@dwighthayes4738]

@@fz-makingknives3663 You're welcome😊😀

[@girar813]

The chamber is still the best,,it didn't cracked. Can i use normal gypsum instead of plaster of paris?

[@parkerreed6670]

I was just wondering powders are used in the crucible? I would appreciate it if you would let me know. Thankyou

[@fz-makingknives3663]

Fireclay mortar graphite

[@parkerreed6670]

@@fz-makingknives3663 Thank you sir

[@Dan-qp1el]

Questions: what is the batting you used, and why not just use concrete?

[@TheArgentlion]

Hey I really like the blower motor solution you have there, where did ya get yours?

[@ssouthboundpachyderm]

You can get them from grainger for cheap

[@craigjones9244]

A small setback but still a great job👍🏻

[@fz-makingknives3663]

Thanks 👍

[@wiebercraft4974]

Foundry came out sweet.

[@Covencraft]

how do you make or where do you get these cruicibles?

[@mrfighters5406]

what's powder you put in crucible ?

[@fz-makingknives3663]

Dolomite, grafite, glass

[@vishaljadam9498]

You can send me what material are used to make that furnance for my college project and overall cost, if you read please reply

[@dustinsmith1556]

I need a foundry that can get to the hottest temperature possible, what temperature can this go to

[@oneshotme]

Nice foundry you made Enjoyed your video and I gave it a Thumbs Up

[@fz-makingknives3663]

Thanks 👍

[@oneshotme]

@@fz-makingknives3663 You're welcome!

[@dragonshoarddesign3094]

Link to the insulation and nova plast, I am a goldsmith not a hobbyist having trouble finding a good resource link for those products.

[@ananpillai2783]

That was a cool idea but this foundry would eat a lot of gas, I hope. FZ how much gas did it took to melt this steel balls?

[@fz-makingknives3663]

10 liters

[@diegogutierrez1423]

What is the container for steel made of? it would be a great help friend 🙂

[@fz-makingknives3663]

Fireclay mortar graphite

[@betchface752]

Love the metal studded turd. Ball bearings off the cobb are always hard to digest. Haha

[@christopherlund1198]

What was the blackish grey material put into the mix at time stamp 5:19? Ashes? Thank you!!!! and Love it!

[@kovona]

Looks like crushed graphite or pencil lead.

[@Mocking69]

I am impressed with the waste oil burner ♪

[@Huntrezz]

Beautiful

[@fz-makingknives3663]

Thanks 👍

[@mertavlamaz6708]

How many minutes does iron melt in this system?

[@Oddy25]

7, probably 7.5

[@drlightman5848]

Looks nice! What is for this blower fan?

[@MyNotSoHumbleOpinion]

Like thousands of years ago it's to add more oxygen to the combustion and so to increase temperature. Propane alone isn't hot enough!

[@sunnahberkuda8574]

Beautiful 👍👍👍😁

[@markallen7343]

I like this idea. I will keep it in mind

[@ralphkleyer9324]

what kind of gas cylinder was it propane or something heavier?