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
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"
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!
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.
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.
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.
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 😉
@@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.
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.
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 .
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
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.
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.
You can remove the old valve by simplye unsrcewing it but lets continue watching. 👍 For showing its filled with water and using a angle grinder with guard on. Maybee using a Professional Silicium Carbide Crucible next time before ruing your foundry.
You can increase temperature adding a Thin layer of insulating cement called " black reflecting layer" based on the blackbody theory. It's made of refractory cement , Cooper oxyde and a Little carbon powder. Good luck
That crucible failed, but thats a sexy looking ingot trophy ;) Nice build on the furncae. Every fail is a leson, you could read and watch for days and not learn what you did in 30min. GG.
As an old, retired refractory man, I don't really see how the homemade crucible would work. First the grain size of the castable seemed awfully course for a such a small crucible. Second, crucibles need to be fired before using and not just dried out. Firing means bringing the refractory to almost melting or fusing which in this case has to be a bit over 3000 deg F or more for an hour or two with a slow heat up of 75 deg F/hr until 200 deg F and hold for an hour or more. Then I would go up 75 deg F/hr to 1200 F and hold for an hour. For a quick job I would go 100 deg F/hr until 2200 F and hold for an hour. After that I would increase 100 deg F to your firing point and hold for an hour or two. This sounds like a long time but this is a very aggressive heat up and firing. Not only you have to get mechanical water out of the crucible at 212 deg F but you also have to get rid of chemically combined water that is over 1500 deg F. Personally, I would buy a $35 crucible that is made of fireclay and graphite in which the graphite will help the iron or steel not to stick. I would not have any direct flame impingement on the crucible because the flame is too hot and would cause a crack due to thermal shock and if you buy the commercial crucible, flame impingement oxidizes the graphite in the crucible. I am operating from memory after having over 30 years in the refractory business and retired for over 20 years but I stand by my recommendation.
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" 🙂👍
You have an arc welder. Crank it up and burn a rod. You can make such nicer holes as oppose to the straight cut discs. I did the same. Burning it isway easier on the ears, discs and wrists. Give it a try
The crucible burst because it wasn't dry enough. Preheat it in the furnace before you charge it with your steel next time and then it should stay intact. Or buy one made of graphite for the next run.
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?
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?
Careful sawing that first valve off, before the residual gas is washed out :) The valve is usually non-sparking bronze/brass, but if the saw threw a spark you could have an unfortunate blowout.
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?
Thank you all for watching. If you want to support the development of the channel, please, like.
Мало по времени держали? Или тут нужно больше чем в горне держать?
Быстрый нагрев , лопнул тигель. Дальше не стали продолжать , все равно убежало бы)
@@fz-makingknives3663 а я не заметил, что тигель лопнул
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
My God !!! Good thickness steel!!!
I do appreciate your honesty because you do not hide the image when the crucible bursted. Aside from this, you made a great job.
but the temp of 3002 deg is a bit deceptive
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
👍
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"
@@JBattler කදදඳද9ක9
Im sure its the liquid inside that got too hot for the crucible and bursted out
Failure for one is success in the future for others !
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!
That with cutting the tank filled with water can save many lifes. Hope people notice such things. Very ,very good Video!
Respect!
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.
Would have been better had he explained why he filled it with water. I had no idea until I read your comment.
making something work is a thing, knowing something what you should not do is another, every video teaches something, thank you
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.
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.
This isn't a kiln, but a foundry. "Exactly the same, but completely different" is this situation.
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 😉
@@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.
@@TingTingalingy its a furnace
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.
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.
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 .
From an old foundry man I couldn't agree more, and also bringing the temperature up steadily is always worth doing
i wonder why this looks so satisfying ☠️
Adding an air shutter to the incoming side of the blower will give you better control. I absolutely love this channel!!
i appreciate your honesty, you are creative, innovative, you work hard and don't make people fool by video editing.. 10 out of 10 👍
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
hi, i'm new to this business, can you see how i restore??.
Как говориться, отрицательный результат, тоже результат)
Совершенно верно)
Thank you for the great video. Have a great day 👍👍👍👏👏👏
Dein Kanal ist der beste und interessanteste. Ich bin froh ihn entdeckt zu haben.
Handwerkskunst aus Russland ist immer ein Highlight anzusehen.
We are not from russia!
@@fz-makingknives3663 Es tut mir leid ich kenne mich nicht aus. Woher seid Ihr?
Someone please buy this guy a hole saw.... 😂 Awesome video. I'm a fan!
Foundry came out sweet.
I am impressed with the waste oil burner ♪
Super informative and awesome build. Thank you. Definitely learned
I'd put those bearings/balls in another small crucible and try again. All in all that forge looks incredible.
You can digest it. Don't throw away such good stuff.
@@fz-makingknives3663 Exactly, don't throw away such good stuff.
hi, i'm new to this business, can you see how i restore??.
Nice foundry you made
Enjoyed your video and I gave it a Thumbs Up
Thanks 👍
@@fz-makingknives3663 You're welcome!
well done you built a nice furnace
Great production.
Love the scene, when attaching the handles. It's just magic. 😅
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.
Oh ffs. I feal your pain, your honesty made a subscriber.
Steel art mate❣
Good work.
Thanks
You are quickly becoming one of my favourite makers on RUclips!
Thanks 👍
hi, i'm new to this business, can you see how i restore??.
Fkng outstanding!👏👏👏👍👍👍👍👍
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.
Thanks 👍
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?
Beautiful 👍👍👍😁
Really cool. Foundry working awesome. 👍👍🔥🔥🔥
Thanks 👍
Amazing Brother.I Also make One For Alumunium Melting.But Yours Foundry Looks Pro Edition.Great Well Tried.
Thanks 👍
hi, i'm new to this business, can you see how i restore??.
@@restorationh.i.a7139 Keep Trying Brother.
That egg of steel looks like a dragon egg. Looks cool
Thanks 👍
And Monkey ! Came out of it !
Респект хорошея идея 💪💪💪
That semi-melted slug was cool looking! I hope you polished it up and kept it.
Thermocouple and Temperature indicator. Nice
great video, I'd love if you could add captions, as to what you are doing, ingredients ratios etc.
Rất hay 💯💯💯💯💯💯💯💯 like
🖐️👍
That chunk of metal that you pulled out looks like a piece of modern art 🎨 or a dragon 🐉 🥚
Beautiful
Thanks 👍
i love your workflow and video style.
I like this idea. I will keep it in mind
Cool video!
The main thing is not to give up! 👍
We never give up)😁💪
👍
استعملت الهواء اكثر من الغاز محاولة جيدة واصل
Não desista 😀😀
👍
Metal cutting hole saws are worth every penny. Every single one.
Nah, I use me pecker mate, my foreskin cuts diamonds bro.
I rub my cock head against rusty metal all the time mate.
@@ronnybonny424 Pecker Mate, what is that, something like a FleshLight®?
@@RyshusMojo1 first-name pecker last name mate, metal removal tool.
Excellent work.
Thanks 👍
@@fz-makingknives3663 You're welcome😊😀
Omg impeller blade!!! Jesus you are really blow my mind!!!😱😱😱😱
Thanks 👍
You can remove the old valve by simplye unsrcewing it but lets continue watching. 👍 For showing its filled with water and using a angle grinder with guard on. Maybee using a Professional Silicium Carbide Crucible next time before ruing your foundry.
👍
I’m wondering if a double air flow would make it hotter
Hellow Mr your work is good.
Thanks 👍
Комментарий в поддержку канала
👍
yes, ok, very good, approve
Génial.. Bon travail merci beaucoup
Great video and what a great looking forge. I bet you guys are going to enjoy having that.
👍🍻
Hi, love your videos and you make amazing knives but I was wondering if you could show how you make your crucibles?
Yay I also want to know!
Nice bro
Thanks 👍
Thanks for showing result 😆😅😂😂😂😂😂😂😂🤣🇵🇰
Beau travail et belle vidéo merci pour ta réalisation
smart filling it with water before cutting it open.
Thanks
Please tell us what chemicals are used. Because you are mixing things that we don't know and you are doing a good thing that we like to do
Looking forward to seeing it work in properly. Still a great job. Will you still forge out the semi-melted ball bearings?
I probably need to make a vote, to uncoil these balls for me or not?)
@@fz-makingknives3663 are they melted together or is it just glass sticking them together?
Ok felicitări
You can increase temperature adding a Thin layer of insulating cement called " black reflecting layer" based on the blackbody theory. It's made of refractory cement , Cooper oxyde and a Little carbon powder. Good luck
Thanks 👍
Does that reflect more IR?might do it to my forge 🤟
@@johngarland1641 yes, Thin layer meaning half an inch. Will you test It?
Thanks a lot for sharing this video. It gives me a lot of ideas how I am going to make mine... Thank you again 🙏
Thanks 👍
Mantap 👍
A small setback but still a great job👍🏻
Thanks 👍
Hey, it welded. Pretty interesting and honestly very good to show happening.
На крышке надо решоточку для чайника
8.25 такой огонь
Nice to see, although lack of important information on what material used
That crucible failed, but thats a sexy looking ingot trophy ;)
Nice build on the furncae.
Every fail is a leson, you could read and watch for days and not learn what you did in 30min.
GG.
Great job. Please can you tell me what is that material you add between the metal carrier and the cement paste ( the white rijufoam like material) ?
You're probably better off spending a lil extra $$ on a top or near a top of the line crucible because that's one bad ass furnace! Great work bro!!👍
Thanks 👍
@@fz-makingknives3663 ...You're welcome 😊!!
ficou show de bola
Yessss yessssss
thanks.
Buen intento! A no desanimarse. Son excelentes tus vídeos!
As an old, retired refractory man, I don't really see how the homemade crucible would work. First the grain size of the castable seemed awfully course for a such a small crucible. Second, crucibles need to be fired before using and not just dried out. Firing means bringing the refractory to almost melting or fusing which in this case has to be a bit over 3000 deg F or more for an hour or two with a slow heat up of 75 deg F/hr until 200 deg F and hold for an hour or more. Then I would go up 75 deg F/hr to 1200 F and hold for an hour. For a quick job I would go 100 deg F/hr until 2200 F and hold for an hour. After that I would increase 100 deg F to your firing point and hold for an hour or two. This sounds like a long time but this is a very aggressive heat up and firing. Not only you have to get mechanical water out of the crucible at 212 deg F but you also have to get rid of chemically combined water that is over 1500 deg F. Personally, I would buy a $35 crucible that is made of fireclay and graphite in which the graphite will help the iron or steel not to stick. I would not have any direct flame impingement on the crucible because the flame is too hot and would cause a crack due to thermal shock and if you buy the commercial crucible, flame impingement oxidizes the graphite in the crucible. I am operating from memory after having over 30 years in the refractory business and retired for over 20 years but I stand by my recommendation.
Sir could you please tell what was cotton like substance you filled walls with? Also composition of cement like stuff?? Thanks
Kaowool or ceramic fiber insulation
ขอบคุณสำหรับ แนวทาง
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" 🙂👍
Thanks
You have an arc welder. Crank it up and burn a rod. You can make such nicer holes as oppose to the straight cut discs. I did the same. Burning it isway easier on the ears, discs and wrists. Give it a try
crank it way up so the rod burns through..
nICE aRTWORK ;)
So are you using a standard propane tank for the fuel source? Thanks -
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!
what is the three ingredients you use afer the steel? I love your knife making.
Dolomite, grafite, glass
hi, i'm new to this business, can you see how i restore??.
Nice work! Looks great. A bit of tweaking and it should work just fine.
Thanks 👍
Great video. That much skill as a fabricator, but you have never heard of hole saws lol? Either easy awesome job!
3/4 inch is maximum a hole saw can cut, you must be a newby
The crucible burst because it wasn't dry enough. Preheat it in the furnace before you charge it with your steel next time and then it should stay intact. Or buy one made of graphite for the next run.
Nice informative, thanks, but what are the supporting substances added, can you add those names
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?
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?
Careful sawing that first valve off, before the residual gas is washed out :) The valve is usually non-sparking bronze/brass, but if the saw threw a spark you could have an unfortunate blowout.
@@domino2205 he was commenting on the 1st cut, through the brass gas fitting, all before flooding out the tank
Excelente
👍
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?
I'd like to know: Is that a temp probe? Do you have LPG fixed to a regulator at the other end?
ما هي المواد التي اضفتها مع كريات الحديد قبل التذويب
Are you using asbestos between the mortar and steel? Is there a safer alternative?