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Refractory made easy 

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29 окт 2024

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Комментарии : 46   
@fatherfoxstrongpaw8968
@fatherfoxstrongpaw8968 22 дня назад
sweet, i have the same forge. i made the mistake of not getting the blanket joint tight, so i have a little triangle gap at the bottom. thought having a thicker satanite floor and the fire brick would be fine, but lo and behold, there's a linear crack. gonna have to chip out a couple inches of the bottom,shove a kaowoll strip in to fill that gap (after rigidizing). i also had a lot of cracking from putting too thick a coat, so lots of thin coats worked best for me with this shape of forge. but all in all, satanite for the win with this forge. my best advice, soak the chit ouda the blanket, dry and cure it right first, then thin coats of satanite until you get at least 3/8" for the upper 2/3's of the forge and a good half inch for the bottom with at least a 2 inch taper for best floor and least cracking potential. then all you have to worry about is the ends cracking around the metal ring. hasn't been a problem for me, i just squirt more rigidizer in the crack at the transition from time to time just in case.
@luciusirving5926
@luciusirving5926 2 года назад
Since I live in Mexico, my best option for making a forge is a lime-fiberglass mixture featuring a bit of cat litter for extra adhesion. At least it lasted me longer than pumicecrete. Pumice despite being a decent insulator, will melt and slag.
@roccoszabo4536
@roccoszabo4536 Год назад
Thanks a bunch for this. Adds to my learning
@BBForge
@BBForge 6 лет назад
looks awesome can't wait to see that beast fired up
@drstrangefart
@drstrangefart 6 лет назад
B & B Forge It'll be great. It sat with the space heater aimed into it for something like 8 or 9 hours after the last coat was packed in there. I figure after a couple of days a low heat to test it should be plenty and then I'm getting a piece of steel in it.
@catherineharris4746
@catherineharris4746 2 года назад
Simply outstanding!👍👍👍
@benhoover4762
@benhoover4762 6 лет назад
Of all the ways I've seen to do this, this has to be the easiest, smartest way yet to complete said task.
@drstrangefart
@drstrangefart 6 лет назад
Ben Hoover Thanks! I just kinda fell back on what I already knew from other jobs I've had to do over many years.
@SpeargrassForge
@SpeargrassForge 4 года назад
Hey mate. I'm using the shaker Idea. Just thought I'd let you know lol cheers mate for the great tip
@drstrangefart
@drstrangefart 4 года назад
No problem, man. That's what it's there for!
@joshuaw.6488
@joshuaw.6488 Год назад
Leaf spring will not “shoufamoan?” Dude I couldn’t understand that. What did you say?
@nelsonsantos770
@nelsonsantos770 3 года назад
Hellcote 3000 recommended 1/16 - 1/8 thickness
@B-Ronstopable
@B-Ronstopable Год назад
ty very relatable
@adrianakuzmikova1697
@adrianakuzmikova1697 2 года назад
how do you glue ceramic wool to the sides of the forge?
@drstrangefart
@drstrangefart 2 года назад
The wool stays in the shape of the forge once you unroll it inside the forge. Then it stays put. The refractory is there to keep fibers from flying off the ceramic wool and going in your lungs.
@adrianakuzmikova1697
@adrianakuzmikova1697 2 года назад
@@drstrangefart my forge has a size of a big box so I need a way to glue ceramic wool to the sides somehow. it will not just stay in place by itself. also I need a way to glue it on the lid part of the forge. my forge is 100x50cm and 100cm tall. the iron I wanna work with will be on the bottom, but I made it taller so the top part doesn't get too hot. how should I position air intake - blower, when I wanna use coal as a fuel?
@drstrangefart
@drstrangefart 2 года назад
Try holding everything in place with wire and spraying a HEAVY coat of rigidizer on it. That in theory should get it stiffened up enough that you can apply refractory. Your only other option is to weld some small pins to the inside of the forge to hold it up.
@drstrangefart
@drstrangefart 2 года назад
The ceiling of the forge is gonna take a little doing, but you should be able to get it.
@adrianakuzmikova1697
@adrianakuzmikova1697 2 года назад
@@drstrangefart I will probably weld some nails from the inside and attach ceramic wool to them. how should I position air intake? should I make grate? I think the air flow will be the most important part to get high temperatures. I need around 1200 C to be able to work with iron.
@TheRowdyJ
@TheRowdyJ 4 года назад
so why wouldnt you use a rigidizer? like a spray? doesnt it do the same thing? im learning how to build one.
@drstrangefart
@drstrangefart 4 года назад
Rigidizer only stiffens the sheet of kaowool a bit. It does NOTHING to stop the ceramic fibers from being blown out of the forge into the air. The refractory is there to keep those fibers from being blown out. You do NOT want to be breathing those fibers unless you're a huge fan of mesothelioma.
@TheRowdyJ
@TheRowdyJ 4 года назад
@@drstrangefart interesting. seems if it was sprayed at the ends as well as the middle, it would seal everything. like spray on super glue.
@drstrangefart
@drstrangefart 4 года назад
Nope. If refeactory wasn't absolutely necessary to working safely, no one would bother. It would be WAAAAAAY easier to just slap new kaowool in and spray it every so often than dealing wirh refractory on every relining of the forge.
@TheRowdyJ
@TheRowdyJ 4 года назад
@@drstrangefart gotcha.
@trevorjonasen3251
@trevorjonasen3251 6 лет назад
Did you use ridgidizer first or satanite straight over the wool? Looks like "thinset" concrete patch/leveler. Thanks for the vid, look straight forward.
@drstrangefart
@drstrangefart 6 лет назад
It was already rigidized from the factory so yes. It was rigidized first.
@fire304
@fire304 5 лет назад
I was wondering if there's a minimum thickness to the refactory.
@ericgordon342
@ericgordon342 6 лет назад
But keep in mind that you will have to replace this
@ericgordon342
@ericgordon342 6 лет назад
At least the refractory
@drstrangefart
@drstrangefart 6 лет назад
Eric Gordon Yeah, I've figured out that refractory is a temporary thing. It seems with legitimately heavy use you can get a year, maybe two out of a solid layer of refractory. This won't see very heavy use so I'd guess two years would be a very conservative estimate.
@MrSpaceRatt
@MrSpaceRatt 3 года назад
What did you line it with before the satanite?
@drstrangefart
@drstrangefart 3 года назад
It was rigidized befire it shipped to me. If you're starting with fresh kaowool, a spray-on rigidizer should take care of your prep before applying refractory.
@hightowerone
@hightowerone 5 лет назад
Nice video. How much time to do first coat? Then....how long do you wait to coat again? And does the second coat go on quicker than the first? Thanks for your time
@drstrangefart
@drstrangefart 5 лет назад
The first coat I left alone for a few hours with the space heater blowing into the forge. The coats after the first one go faster but you're still gonna want to let it sit for 2 or 3 days after the last coat to fully dry and cure.
@hightowerone
@hightowerone 5 лет назад
@@drstrangefart ok so do a coat and wait a few hours, do another and wait a few hours and repeat until you've happy and then let sit a few days? Just want to be clear
@drstrangefart
@drstrangefart 5 лет назад
Pretty much. You want ZERO moisture in that stuff. First time you fire the forge up after a few days of curing run it on very low heat for 30-40 minutes.
@hightowerone
@hightowerone 5 лет назад
@@drstrangefart will do. Funny you speak of OCD! Meeeeee too . You bet I will!
@drstrangefart
@drstrangefart 5 лет назад
If I understand right any moisture left in the refractory will cause it to crack and start falling apart.
@jjppres
@jjppres 6 лет назад
Well I'll tell you this much. It appears to go on much easier than the mizzou did on mine. The mizzou is very thick and lumpy and hard to spread. By the way friend of Bill W. you got a brother here. One day at a time!
@drstrangefart
@drstrangefart 6 лет назад
Jim Patterson One day at a time! Friend of Jimmy K for 8 years and counting. Next time you try mizzou, maybe take a crack at shaking it up. I know shat vigorous agitation made it a lot smoother a lot faster than trying to mix in the bucket did.
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