Get the Most Aluminum From Melting Cans

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  • Опубліковано 19 січ 2017
  • Want to learn sand casting using your 3D printer? I can teach you!: paulsmakeracademy.mykajabi.co...
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    Today i show you how to get the most metal out of melting aluminum cans at home. I use the improved mini metal foundry i made in another video, and turn my recycling into pure ingots. Also there are some tips to improve the metal easily for better results.
    This process was gathered from tips from many helpful sources, thank you to everyone that offered input.
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    Janesville, WI 53545-9998
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    Music: "Quirky Dog" by Kevin MacLeod. incompetech.com/
    #metalcasting #meltingmetal
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КОМЕНТАРІ • 426

  • @PaulsGarage
    @PaulsGarage  5 місяців тому

    Want to use your 3D printer to learn Sand Casting in your home shop? paulsmakeracademy.mykajabi.com/joinus

  • @shikiaura
    @shikiaura 7 років тому +29

    Heart disease in our metals is a real problem. Thank you for being so good to your metals!

  • @sethhowell2278
    @sethhowell2278 7 років тому +16

    this is easily one of the most interesting casting vids ive seen. NO ONE addresses the difference in pure vs not, and what its missing, or how to adjust it. great vid man!

    • @PaulsGarage
      @PaulsGarage  7 років тому +3

      +Seth Howell thanks! I only talked about the silicon content thing because I'm a massive nerd lol

  • @richarddavies7728
    @richarddavies7728 Місяць тому +2

    Some of the old timers used to put a thick layer of charcoal in the crucible on top of the metal working on the theory that as it burns it creates a layer of CO2 on top of the liquid metal to keep the oxygen away and prevent oxidation. The man who told me has been dead for decades now so I can't ask him what metals he used it with or how thick a layer but it might be worth experimenting with.

    • @alexanderrr1825
      @alexanderrr1825 11 днів тому

      Makes sense.
      Another way is to put argon into the furnace or to bubble it up through the metal inside the crucible.
      This requires a tube that resists very high temperatures.

  • @dale9896
    @dale9896 3 роки тому +1

    Mate thanks for the tip. I admire your dedication to smelting aluminium while it was so cold where you were!

  • @MrJimbobdudeguy
    @MrJimbobdudeguy 7 років тому +3

    Im glad to have seen this video, thank you for posting it. I have just started forging and using the salt on my last 4 videos i was able to reclaim ALOT of alum from my dross. Also included my first attempts of sand casting... learning alot

  • @edgeeffect
    @edgeeffect 6 років тому +4

    I haven't watched any "Paul's Garage" for a while... I forgot how cool it is.

  • @alexanderrr1825
    @alexanderrr1825 11 днів тому

    Useful video for beginners. Thank you.

  • @walter2990
    @walter2990 2 роки тому +3

    Glad you've progressed beyond this stage!

    • @PaulsGarage
      @PaulsGarage  2 роки тому +1

      Yeah cans are no fun. Now only cast aluminum, and I'm about to switch to only cast aluminum wheels or purchased ingots.

  • @jamesdepaul3410
    @jamesdepaul3410 2 роки тому

    This was very informative. Thank you

  • @connorgreen1676
    @connorgreen1676 6 років тому

    I thoroughly enjoy watching your videos. Not only am I learning something but I am very entertained while doing so.

    • @PaulsGarage
      @PaulsGarage  6 років тому

      thanks! i'm glad you like them :D

  • @therealtigerlilly
    @therealtigerlilly 3 роки тому +1

    I really like your humor and your videos are good
    And interesting
    Thank you

  • @CandSMINING
    @CandSMINING 3 роки тому

    Been looking for a alum flux. Thanks for sharing. We are now subbed.😎⛏⛏🔥🔥

  • @NathanielOutdoorAdventures
    @NathanielOutdoorAdventures 3 роки тому +1

    That was really cool and great info. Thanks

  • @flippingnation3482
    @flippingnation3482 6 років тому +1

    Amazing video! Was actually surprised, I subed and liked your video!!

  • @THEAngryProjects
    @THEAngryProjects 7 років тому

    nice video man i'm getting started in aluminum casting and really you give me some nice tips that i didn't know any thing about keep up the good work

  • @homegrowntomatoes1
    @homegrowntomatoes1 6 років тому +2

    Hey Paul, I just found your channel and your metallurgy tips are quite helpful. Now I will look around and hopefully find how you built your furnace. Thanks, Kenn

    • @PaulsGarage
      @PaulsGarage  6 років тому +1

      I built a new once since this video, I have a few videos on it, something about a fire brick foundry furnace in the ttle

  • @MarkMichalowski
    @MarkMichalowski 3 роки тому +3

    Only two and a half years late to your vids, but better late than never! I'm going to try the Lo-Salt tip tomorrow because you're right - the amount of dross from cans is horrendous. In fact today I ended up with a smaller alumuffin (oooh, I like that!) than the one I STARTED with, despite adding a bucketload of cans: the amount of dross (and aluminium bound up in it) was greater in volume (if not weight) than the alumuffin. Love your channel - have a sub! :)

  • @benjamindeverell1123
    @benjamindeverell1123 6 років тому +4

    the lines you talked about comes from gasses in your mix, i've seen people use baking soda to combat that with reasonable outcomes. and the shrikage in the center of your ingots comes from having no silica (and also i think in part from the gasses)

  • @abdelkaderabdulla5468
    @abdelkaderabdulla5468 3 роки тому +1

    You're the best Paul

  • @falloutmaster1019
    @falloutmaster1019 7 років тому +10

    Paul you can make a really good cheap propane burner just look up "how to make an aluminum foundry" by the backyard scientist. mine got hot enough to melt copper easily and you wont have to deal with refilling the charcoal every few minutes and you wont have a bunch of ash to deal with when your done melting to. fair warning make sure you have a thick and durable crucible because i have all ready burned holes in some of mine. good luck.

    • @PaulsGarage
      @PaulsGarage  7 років тому +3

      Thanks for the tip. I'm goign to make a propane burner before too long. With hardwood lump charcoal i never get ashes in the bottom of the furnace, but it burns out so quickly i can't get the thing reliably hot enough for copper.

    • @jasongrinnell1986
      @jasongrinnell1986 3 роки тому

      It’s a furnace not a foundry! Just saying.

  • @jeffcauhape6880
    @jeffcauhape6880 28 днів тому

    Awesome. Thank you.

  • @misterdecaro
    @misterdecaro Рік тому +1

    Thanks Paul! This a great tip! I have been collecting aluminum cans for awhile waiting for spring to start casting but was having doubts about using them because I kept hearing the same: they are a good cheap source of alumimum/they are garbage, don't use them. Relieved to know I can use them for casting projects. BTW, I enjoy many of your videos and the information you share. Thanks!

    • @PaulsGarage
      @PaulsGarage  Рік тому +2

      Hi stephen! this is a pretty old video, i would suggest using the aluminum from cans for making alloys like aluminum bronze, but I wouldn't use them alone for castings unless you have a mold with plenty of head pressure or something. This stuff will have a higher shrinkage rate and higher surface tension. Nothing that can't be compensated for, of course, but it's not ideal. I used these to make aluminum bronze (90% copper, 10% aluminum). It's great.

  • @mohammedm2110
    @mohammedm2110 7 років тому +3

    You are really funny man! Totally enjoyed watching your videos. Keep creating awesome content:) You deserve more subs!

    • @PaulsGarage
      @PaulsGarage  7 років тому +1

      Thanks! glad you enjoyed :D

  • @explosevgamr5349
    @explosevgamr5349 7 років тому +3

    after MANY hours of serching,(literally just 5) I have found my favorite UA-camr for melting mettle. your hilarious

    • @explosevgamr5349
      @explosevgamr5349 7 років тому +2

      also, how do heatsinks help? is it like the computer kind?

    • @PaulsGarage
      @PaulsGarage  7 років тому +2

      +explosev gamr the heat sink was just a thick chunk of aluminum to form a molten pool first. Cans are too thin and when they melt they oxidize, plunging them into an existing pool first helps prevent that.

  • @kenstockton7793
    @kenstockton7793 Місяць тому

    This was fun, like the muffin pan mold,😊 forgot the Pam😊
    hair dryer❤ Love your Proper English, you must be related to me we have our own family dictionary 😅 good job

  • @richardgrant4366
    @richardgrant4366 3 роки тому +1

    Thoughtful comments on how to reduce aluminum dross!

  • @jeremygrovowens896
    @jeremygrovowens896 4 роки тому

    Finally the answer I was seeking. Off to remelt that shiny dross with some salt. I plan to use an ugly ingot to establish my pool for can melting. Look into fireplace gear for stirrers and grabbers. My "store" bought furnace kit came with some but not nearly as durable as my old fireplace tongs.

  • @petee716
    @petee716 7 років тому +4

    Another good video Paul. If you find out what the can alloy actually is and what the silicon content of 356 aluminum is you can crush up the right amount of silicon and toss it in to improve the casting properties of the can metal. You can do the same thing by adding some aluminum from pistons because they're very high in silicon. Burning teflon is super poisonous.

    • @PaulsGarage
      @PaulsGarage  7 років тому

      Hi pete! I probably could crush up the silicon and add it to the aluminum, but i have lots of cast aluminum already and i don't want to waste the silicon. I might be able to get a hold of some junk pistons, though. Making everdur is something i want to do as soon as i get the next furnace built, though.

  • @codelicious6590
    @codelicious6590 3 роки тому +2

    Is it silicon carbide that's in cast aluminum? You can see it in the grain structure when you observe a broken piece. Shiny little specks. The shrinkage is natural and occurs in all molten metals to differing degrees as they cool.

  • @chrisjeppesen2993
    @chrisjeppesen2993 6 років тому

    when you ram up the furnace lid prop the steel band up 1/2 inch above the bottom face of the refractory. this will keep the steel hoop cooler and it won't expand so much.

  • @TheSquigy
    @TheSquigy 7 років тому

    your self commentary is brilliant

  • @edgeeffect
    @edgeeffect 6 років тому +1

    That's a really nice big chunk of silicon you've got there!

    • @PaulsGarage
      @PaulsGarage  6 років тому +2

      +edgeeffect I'm trying to resist the urge to flintknap it. Imagine a chrome arrowhead!

  • @duncanhorne962
    @duncanhorne962 2 роки тому +1

    Cut up cans, ring-pulls, tops & bottoms of cans, & the shards covered In paint dross wise, this I just got to try, aluminium seems to be the easier to start off, so looking for electric smelter 3-4 kilos yes I have plenty of beer cans, all cut up & ready for smelting any advice you could possibly offer would be gratefully appreciated, many thanks, yours truly! P/S, thanks for the flux Info.

  • @JK-zl7vv
    @JK-zl7vv 7 місяців тому

    Borax makes an amazing flux for this process.🤠👍😁

  • @shawndoe2834
    @shawndoe2834 7 років тому +3

    Awesome Video Paul - Thanks. Really liked 1) The Flux Experimentation - was cool that you fluxed the dross & squeezed out a bit more Aluminum and 2) Very interesting how to gain a better quality of Aluminum by adding %5 copper. For a while I was scrapping & collecting copper. A lot of the newer electronics save on the cost by using a super thin Copper coating on Aluminum wire for electrical conductivity. So I have quite a bit of Copper coated Aluminum wire that I thought was basically crappy Aluminum. However Thanx to your video the Copper coated Aluminum wire might just melt into a slightly better quality Aluminum!!! The one thing I wandered about was the dross in the crucible - if you had thick gloves or a better pair of tongs I wandered if you turned the crucible upside down & tapped it on the cement if the dross would fall out??? Thanx Again: Shawn

    • @PaulsGarage
      @PaulsGarage  7 років тому

      Thanks! THe fluxing worked really well, i was surprised. Someone recently told me that 95% aluminum with 5% copper is called duralumin if you want to look that up. It's a pretty decent alloy. I didn't record it, but i did actually turn the crucible over and bang it on the cement to get some dross out. Not all of it came out, though. Quite a bit stayed stuck in there. I don't have a way to scrape it out, but melting cans left FAR more crud in there than melting scrap cast aluminum, so i probably won't do cans again. All the dross was a good thing later, when i did the keychain casting video the crucible actually got a hole in the bottom of it and the dross and crud plugged it up so it was a very slow drip. I was able to pour and everything without losing any significant metal out the hole. It's in the garbage now, though.

    • @Toto-ko5on
      @Toto-ko5on 7 років тому +3

      Duralumin:
      3,5-5,5 % Cooper; 0,5-0,8 % Magnesium; 0,6 % Manganese,94-95%Aluminium,Si=0.2-0,5%.
      (Cans are actually made from two alloys 5004 which is 1% each of Manganese and Magnesium used for the body of the can and 5182 1% Manganese and 4% Magnesium for the lid.(data from Olfounryman channel))
      As you can see, your recipe with Cooper is so close...

    • @Toto-ko5on
      @Toto-ko5on 7 років тому

      Fighting recipe with dissolved metal crucible:mix ''liquid glass'' with refractory clay, or kaolin, or bentonite (cat litter), or chalk and paint every time before melting.Paint everything what you immerse in molten aluminium.
      Works very well!And cheap...

    • @Gryphon2026
      @Gryphon2026 6 років тому

      Toto hey I'm trying to understand what you're saying but I'm not sure I do . Could you explain what you said a little better ? Because I'm really interested in what your saying.
      Thanks !

  • @diymaster101
    @diymaster101 10 місяців тому

    Thanks bro

  • @jurosmilkovich1427
    @jurosmilkovich1427 6 років тому +2

    This is the Perfect YT Video. How many years have I thought about it, wondering about it

    • @PaulsGarage
      @PaulsGarage  6 років тому +2

      not sure if bot comment...

    • @NoahBenzing-ru5st
      @NoahBenzing-ru5st 5 місяців тому +1

      @@PaulsGarage Again.... LIES! Your TWO BOTS won't even let you mindlessly click thumbs-up on your YT video comments!
      ~NMB

  • @GodMaxDrinkerofTea
    @GodMaxDrinkerofTea 7 років тому +2

    Best way to Start a Video
    charmx would love it

    • @GodMaxDrinkerofTea
      @GodMaxDrinkerofTea 7 років тому +1

      and also
      this video was quite _salty_ wasn't it? hehe

    • @PaulsGarage
      @PaulsGarage  7 років тому +1

      +MaxPlayAll yes indeed, I'm afraid the aluminum is going to suffer from high blood pressure after all that salt

    • @GodMaxDrinkerofTea
      @GodMaxDrinkerofTea 7 років тому

      Paul's Garage lets hope the best for you

  • @bradliston8990
    @bradliston8990 7 років тому

    So you can fish the crap off of the top before you pour it, I've been doing that and it's made pouring much easier. I just smashed some scrap steel to make a spork type thing with a long handle to fish it off. Plus it's fun to play blacksmith and hammer stuff.
    I've never done the lite salt, but that is pretty great. I'll have to do that with my next batch.

    • @PaulsGarage
      @PaulsGarage  7 років тому

      The scooper is a good idea. I need to make one of those up. The spoon with channel locks just isn't capable of getting the dross out with the cans, there was just way too much of it. The dross left over is non-metallic though so that's nice, i think i got all the aluminum out with the lite salt.

  • @kenmcmullan9330
    @kenmcmullan9330 4 роки тому +1

    Space laser sound effects at 09"30! So, what was your yield in terms of weigh of cans in vs weight of cans out?

  • @eviltwinx
    @eviltwinx 7 років тому +2

    Hey Paul, love the video and the humor! I kind of follow the same procedure you recommend for melting cans. I need to try adding the flux during the melt, that seemed to help pull more AI out from the dross. Thanks for the tip.

    • @PaulsGarage
      @PaulsGarage  7 років тому

      Thanks! it does help get more metal out of the dross but i'm worried that it is over fluxed . I think if i mix a bunch of heat sinks in with the melted ingots though it should balance out the mix, and i'm not sure how the flux will effect it when i mix it with copper to make aluminum bronze, but i guess i'll have to try it out and see!

  • @Creator_Nater
    @Creator_Nater 2 місяці тому

    Thank you for being entertaining. Now to see if you have anymore videos....

  • @joey-cn6mt
    @joey-cn6mt 7 місяців тому +1

    A longer mixer might be a good idea!!!.

  • @brettbaratheon9776
    @brettbaratheon9776 7 років тому

    Paul, new subscriber, love your style and knowledge. Question: how did you affix the blow dryer to the pipe for air induction? The diameter of the blow dryer I purchased is much larger than the 1" pvc. Just screw it and tape it or what, Paul? Great videos. Thank you!

    • @rcpi9336
      @rcpi9336 7 років тому

      When I melt I just tape it, I will still leave small gaps in the tape so that the hair dryer doesn't completely die. If you are not worried about murdering the dryer, just affix it to the pipe with miles of tape. If you watch the video you can see that Paul did the latter with a bunch of grey tape, this of course gives the advantage of MORE FIRE!

    • @PaulsGarage
      @PaulsGarage  7 років тому

      +RC pi yep exactly. Lots and lots of tape, that's what I did. I taped it to a 2" to 1" reducer thingy and screwed that into a 1" pipe

  • @jeek3452
    @jeek3452 4 роки тому

    Hello Paul! Im just getting into forging but I dont know what to hold the crucible in, any tips?

  • @jarredsegal6842
    @jarredsegal6842 5 місяців тому

    Yup I’m definitely happy I kept a goodly amount of old 400mh lamp ballasts
    Tonnes of aluminum and a tonne of copper
    Sad I sold the first batch of copper rather than melting it to pure but atleast I kept all the aluminum shades and ballasts 😊

  • @PastorTonyManuel
    @PastorTonyManuel 7 років тому +1

    thanks for the flux tip, i have some large chunks of aluminumy dross i might try to reheat later

    • @PaulsGarage
      @PaulsGarage  7 років тому +1

      You're welcome! I was able to pull a lot of aluminum out of the dross, even after fluxing it a lot the first time, you should have good luck.

  • @V1P3RSlab
    @V1P3RSlab 7 місяців тому +1

    flame are from plastic and suger leftover in the cans :D
    why not removing dross before puring?
    PS: flame the non stick treathment from the pan with a torch, before puring the ingots. Less risk to inhale the fumes :D

  • @edgeeffect
    @edgeeffect 4 роки тому +1

    I've been saving all my aluminium-y dross looking for a means of "refining" it.... I'll flux the crap out of it next weekend.

  • @winehand
    @winehand 7 років тому

    Very informative vid, thanks. did not catch the name of the flux you used though - can you please comment on the name and is there other fluxes we might use, seen candle wax and sawdust used with lead - might those work for aluminum too?

    • @PaulsGarage
      @PaulsGarage  7 років тому

      it's Lite salt/Losalt, basically just low sodium table salt from the grocery store. I'm not sure sawdust or candle wax would work with aluminum.

  • @motoktips3024
    @motoktips3024 6 років тому +15

    Why didn't you remove the crap before you poured... lol

  • @kreynolds1123
    @kreynolds1123 Рік тому +1

    Note on aluminum can alloy
    Typically it's 3003
    From Wikipedia
    The alloy composition of 3003 aluminium is:
    Aluminium: 96.8 to 99%
    Copper: 0.05 to 0.20%
    Iron: 0.7% max
    Manganese: 1.0 to 1.5%
    Silicon: 0.6% max
    Zinc: 0.1% max
    Residuals: 0.15% max

  • @kendallsnyder701
    @kendallsnyder701 7 років тому

    Great video and tips. I was just about to melt some aluminum. Do you know about how many cans you melted and what was the recovery rate. Is it smarter to get the 5 cent deposit or melt it. (Melting is more fun) Just thinking return rate even though I will probably still melt because I love having ingots. Thanks!

    • @PaulsGarage
      @PaulsGarage  7 років тому +1

      unfortunately i didn't count the number of cans exactly. in general, i think getting the 5 cent deposit and then using that to buy scrap cast aluminum is the most cost effective way to get the most materials, but where i live we don't have the 5 cent deposit. I wont get a cent from these so i just melted them lol

  • @movingtorichmondva
    @movingtorichmondva 6 місяців тому +1

    would using borax done the same thing? Getting ready for my first pour!

  • @taitelennox4514
    @taitelennox4514 7 років тому +3

    I love your videos.

  • @markfryer9880
    @markfryer9880 7 років тому +1

    Subscribed to your channel as well, I suspect you will be a channel well worth watching. Mark

  • @LinuxBadukNMore
    @LinuxBadukNMore 6 років тому +2

    Paul, would you know if you could successfully use your foundry as a black Smith forge to make knives and such?

    • @PaulsGarage
      @PaulsGarage  6 років тому +2

      +ajinthevalley NS probably yes. The burner would work fine and it can get the metal to orange hot, but you would need better insulation if you want welding temperatures. Also the design is meant mainly to hold a crucible so the shape might not work for holding certain work pieces.

  • @jd2931
    @jd2931 2 роки тому

    Dope thanks

  • @remyverbeke9632
    @remyverbeke9632 7 років тому +1

    Hey ! I really liked your video and content in general, but I've got a question : what kind of gloves are you using ?
    Because where I live there are no ''high heat'' resistant gloves for sale (or at least I couldn't find a store wich did sell them...) so I wondered if it was that big of a deal if I hadn't these ''high heat'' gloves (I do have other gloves, but they can't withstand these kind of temperatures). So what would you recommend ? Should I order ''high heat'' resistant gloges on internet, or will the gloges I already have do the work ? (I do not plan to get my hands inside the furnace of course, just to get the lid on or off and to refuel)

    • @PaulsGarage
      @PaulsGarage  7 років тому +1

      I use a couple different gloves, don't remember which ones are in this video. one pair is just gardening gloves (100% leather), and the other is a pair of welding gloves. I talk more about them in a video somewhere about foundry safety equipment, but basically the welding ones are better. I think foundry gloves or fireman's gloves would be better yet. I don't know which high heat gloves you are talking about, but the higher heat resistant the better probably. You don't need to get your hands in the furnace to get cooked.

    • @remyverbeke9632
      @remyverbeke9632 7 років тому +1

      When I spoke about high heat resistant gloves, I hadn't any kind of gloves in mind, just a pair that can withstand high temperatures. Anyway I ordered welding gloves on the internet yesterday, that can withstand tempertures of up to 500°C (I know the furnace reaches temperatures way higher than that, but I think it'll be ok as long as I don't drop molten metal on me...). But thanks a lot for your answer !

  • @Zorgoban
    @Zorgoban 4 роки тому

    I always thought silicon is added to the aluminium for casting to make it flow better. So Question: Why is the silicon from the casting a problem when you're going to use the aluminium for casting?

  • @jerryschronicles9140
    @jerryschronicles9140 6 років тому

    If u add sulfur to ur flux it makes an unstable explosive please keep this in mind when doing scrap melting if their is sulfur in ur mix up can get explosive bubbles to full out bang. Use borax instead of salt if u think there might be sulfur present.

  • @Zillustration
    @Zillustration 7 років тому +1

    Hey Paul - Paul here... good tip with the copper addition to the aluminum. I'm casting sculptures, and was wondering how to do away with shrinkage... mostly notice it in the Sprue, not the cast pieces below. I'd hate to find out the hard way. Subbed.

    • @PaulsGarage
      @PaulsGarage  7 років тому

      +zillustration hi Paul! Adding copper won't really help shrinkage as much as silicon, and aluminum will always shrink somewhat. If your sprues and risers are of sufficient size/locations, you shouldn't have damage to the piece. Are you doing lost wax or something?

    • @Zillustration
      @Zillustration 7 років тому

      search zillustration or paul zdepski on FB - i have some public on my page... plus pics of my furnace. Will be trying lost wax, but currently using Super Sculpey to make my models, then casting in fine green sand. A friend of mine is a jeweler, so he's got the super fine stuff. Great detail with finer sand.

  • @c62west
    @c62west 12 днів тому

    Thanks!

  • @jbaker7903
    @jbaker7903 22 дні тому

    Look out for cans with ANY moisture in them, cause if you put a can with moisture in a pool of molten aluminum you'll get a REALLY interesting explosion!!!

  • @ThePeterDislikeShow
    @ThePeterDislikeShow 11 місяців тому +1

    can you just use regular table salt? I don't know where to get potassium chloride.

  • @themadman5615
    @themadman5615 6 років тому +2

    well you just got a new subscriber

    • @PaulsGarage
      @PaulsGarage  6 років тому

      +The Mad Man glad to hear it! Welcome!

  • @freedomfighters1236
    @freedomfighters1236 6 років тому +13

    I use a pound cake pan and make like big bars out of them

    • @PaulsGarage
      @PaulsGarage  6 років тому

      +mark hodsdon that sounds pretty cool!

    • @freedomfighters1236
      @freedomfighters1236 6 років тому

      Paul's Garage yes it is and there about five pounds each im working on a new foundry like you have do you think that the other mix is lasting better so far

    • @PaulsGarage
      @PaulsGarage  6 років тому

      +mark hodsdon yeah this mix is working great. No signs of damage after almost a year

    • @freedomfighters1236
      @freedomfighters1236 6 років тому

      Paul's Garage cool thats what ill do and i subed

    • @Orc-icide
      @Orc-icide 5 років тому

      Do you make "like" big bars, or just big bars?

  • @shrewking
    @shrewking 7 років тому +1

    love the new video i wonder if you chemically treated the cans before to remove the paint and plastic if you'd end up with a lot less dross the pans i use are extruded and im 90% certain pure aluminum and i generally get very little dross. i think surface area has alot less to do with it and its mainly the vinyl paint, and plastic coating that is responsible for the dross.

    • @PaulsGarage
      @PaulsGarage  7 років тому

      Thanks! I think you are right, the plastic is the main problem. i'm sure there is a way to remove the coating with something, but i think just using extrusions is probably easier. there is so little metal in a single can that i doubt it's worth the effort.

    • @ChirpysTinkerings
      @ChirpysTinkerings 7 років тому

      no, if you remove the coating, you expose more aluminum to the air before hand, which will cause even more oxidization before you even get to start melting it. Most of the dross is from the side walls of the cans due to such thin aluminum. Try throwing aluminum foil in a fire, its like that. If you wanted maximum metal out of cans, you would just cut the tops and bottoms off of the cans and use only those, the side walls dont really have any metal to them.

    • @PaulsGarage
      @PaulsGarage  7 років тому

      thats a good point, the sides of the cans are stretched pretty thin, and the plastic would form a nice barrier. I bet as the plastic burns it would eat up some of the oxygen in the can, too, preventing the aluminum from oxidizing. the top is a different alloy, too, if i'm not mistaken, but it's just a couple percent manganese or something like that.

  • @thejoshmoss
    @thejoshmoss 7 років тому +1

    Really cool videos, I'm in the same process of learning this stuff right now. I did get to do a little sand casting in high school but, the instructor handled the furnace. I've been gathering the things to make one much like yours, do you plan on using gas with this one?

    • @PaulsGarage
      @PaulsGarage  7 років тому

      Probably not with this furnace, but it's possible. I plan on switching over to some kind of gas at some point in the future, but the next furnace i plan to build will be designed with charcoal in mind just like this one. There's no reason i couldn't use a propane burner with this furnace or the next one whenever i get around to it, though. I wish i got to do this in high school, the closest I got was lost wax casting small things (like rings) in an art metals class and the art teacher handled the torch.

  • @alkevier7127
    @alkevier7127 7 років тому +7

    to filter the crap on the top try cutting a steel plate to sit on top to strain the stuff

    • @PaulsGarage
      @PaulsGarage  7 років тому +8

      That's a good idea, has to beat a spoon with pliers like i used lol

    • @DSCKy
      @DSCKy 6 років тому +1

      Put a spout on the crucible so that you actually pour from near the bottom (like a gravey bowl).

    • @DSCKy
      @DSCKy 6 років тому +1

      Actually gravy boat I think?

  • @MrCoalcracker79
    @MrCoalcracker79 6 років тому +31

    instead of salt you could use borax.

    • @thefourthtuxzt3078
      @thefourthtuxzt3078 6 років тому +6

      Borax is like 5 times more expensive than the aluminum.

    • @___xyz___
      @___xyz___ 5 років тому +2

      I remember being told that borax shouldn't be used with aluminium. Not sure if it's true, though.

    • @mareksvrcina5279
      @mareksvrcina5279 5 років тому +1

      thefourthtuxzt have you meant salt instead of aluminium? Anyway, borax is still very cheap. In my country, it costs ~$2 for half a kilogram :)

    • @Orc-icide
      @Orc-icide 5 років тому +3

      +thefourthtuxzt Aluminum is free when it comes in the form of discarded cans. 5 times free (0) = free (0).

    • @NoahBenzing-ru5st
      @NoahBenzing-ru5st 5 місяців тому +1

      @@Orc-icide Just like your Mom and wife bro!
      ~NMB

  • @ChirpysTinkerings
    @ChirpysTinkerings 7 років тому +2

    great videos, Adding the copper to it doesnt help it machine better, it helps it flow better into the molds. Your ingots show it alot better between the cans/extruded aluminum to the cast where as the extuded/cans ingots were rounded at the top due to the surface tension, and the cast ingot has more of a sharp top to it where it flowed out more into the shape of the ingot tray.
    Adding copper to extruded aluminum does help it flow alot more, but you do get the same amount of shrinkage, and in sharp corners, you may end up with what's called hot tears, where the metal shrinks in tight corners and splits, making for a weaker part, but to overcome this, just add fillets to everything, which is common pattern making practice anyways.
    Also they look different because the cast ingot has had time to oxidize alot where as the new ones havnt, eventually after sitting a few months, they'll both look the same. I usually just use a sharpie to write on what each is, or just throw them in seperate buckets.

    • @PaulsGarage
      @PaulsGarage  7 років тому

      huh i heard the copper helps it machine better from someone else, but you would know better than me! Good point about the tops of the ingots, i hadn't thought about that. the cast stuff definitely seemed to flow more nicely.
      Good idea on the sharpie, i havent marked them yet but they are in separate piles, plus the can ingots have the really cool crystals on the surface. I wish i could get a close up camera shot of that, it would make a cool picture.

  • @kuigalaxy5226
    @kuigalaxy5226 7 років тому

    i have this bucket full of aluminum i also found this in the woods also in a old building with so much more i have to go get its like a 3hr walk tho so yayay lol

  • @Earthstar_Review
    @Earthstar_Review 5 років тому

    Does mixing salt into the aluminum change its properties much?

  • @111raybartlett
    @111raybartlett 4 роки тому +2

    Stamp a C on there for "Cast" and one for "Can" so you can keep track which is which

  • @___xyz___
    @___xyz___ 5 років тому +1

    Did you try plunging soda ash into the aluminium?

  • @GenieInAFantaBottle
    @GenieInAFantaBottle 6 років тому +22

    Oxygen turns iron into rust, and yet we breath it. 8)

    • @SiegePerilousEsauMaltomite
      @SiegePerilousEsauMaltomite 5 років тому +3

      We rust too, In the form of reactive oxygen species aka free radicals.

    • @bkailua1224
      @bkailua1224 3 роки тому

      @@SiegePerilousEsauMaltomite You could stop breathing

  • @brothersbrothas414
    @brothersbrothas414 6 років тому +1

    Does this salt method work with all metals?

  • @mexdek2061
    @mexdek2061 5 років тому

    Hey paul and paul watchers ever gonna come back to the charcoal foundry?
    More inportantly does anyone know what kind of fumes come off of this kind of foundry setup? And how to possibly avoid those fumes?

    • @PaulsGarage
      @PaulsGarage  5 років тому +1

      Nope, I gave the charcoal foundry away to someone. The fumes are probably the same as a charcoal grill, plus whatever comes off the metal being melted

  • @eatrightfully
    @eatrightfully 7 років тому

    Paul, if you take a look at the 7000 series of aluminum (the hardest) you'll see for 7075 grade that it has a zinc content of between 5.1% and 6.1%. This, apparently, makes it more workable (harder?!) despite it having a lower melt point than aluminum... It also has a low % of silicon, a max of 0.4%, and only 1.2% - 2% of copper. The 7075 grade is aero spec for "highly stressed structural parts". Most of these higher grade aluminums have small amounts of titanium (max 0.2%) and chromium (0.18 - 0.28)%. Why these small amounts are included is, I guess, for added hardness, strength and workability. And read somewhere that the tops of soda cans have significantly more magnesium in them than the sides and bottom - you might want to check this out and figure your next project against the numbers. My interest in this area has been stimulated by the fact that I ride only ally bikes and have found myself wanting to cast my own mech hangers. Its amazing the amount of material you are sort of obliged to sift through so you don't have to fall into all the pitfalls that 'beginners' are prone to make...

    • @PaulsGarage
      @PaulsGarage  7 років тому

      +Ray Purse its true the tops of cans have a few percent of magnesium (5 or less%) but it isn't much, especially once diluted by the sides/bottom of the cans which don't have the magnesium. Plus I intend to use this to alloy with copper to make aluminum bronze, so the magnesium will drop to insignificant levels. Making parts for bikes sounds like a fun project! I wouldn't want to cast anything structural that I would be riding lol.

  • @charleslangshaw4860
    @charleslangshaw4860 4 роки тому +1

    What happens when you drastically overheat aluminum can it be remounted and be good

  • @ThePeterDislikeShow
    @ThePeterDislikeShow 11 місяців тому +1

    Can you clean your crucible with hydrochloric acid when you're done?

  • @gravesbroderick928
    @gravesbroderick928 6 років тому +5

    Mad Max reference!

    • @PaulsGarage
      @PaulsGarage  6 років тому +3

      +Zaco Cast mad max is best max

  • @cheerfultrout4381
    @cheerfultrout4381 6 років тому +1

    With the copper, would a layer of oxidation be an issue like with the aluminum do you suppose?

    • @PaulsGarage
      @PaulsGarage  6 років тому +1

      +Cheerfultrout yes, in fact copper oxidizes more aggressively I believe. People often use cover fluxes or stuff charcoal in the crucible to take up the oxygen when doing copper.

  • @MEPS003
    @MEPS003 7 років тому +1

    Hey good videos! I just made a dual propane set up. I took an 8 gallon bushel tub and used a 5 gallon pale for the center hole. I cast the propane torches right into the cement. My crucible is an old steel firefighter scba (self contained breathing apparatus) tank cut roughly in half. I use a soup strainer/ladle to scoop the crap off the top. Never used flux though but I will start. With the charcoal set up (same as propane but with one hair dryer) I could melt 400 cans (based off of weight) before I had to pour. I did this twice before there was too much ash in the bottom...would run through two bags of charcoal though. That's why I switched to propane...haven't melted any cans with propane yet, I could let you know how it turns out. I'd like to melt brass too. Keep up the good entertainment!

    • @PaulsGarage
      @PaulsGarage  7 років тому +1

      Thanks! Charcoal works pretty well but i'm using hardwood lump charcoal which burns a lot hotter (and gets used up a lot quicker). I think lump is overkill, but propane should work super quickly. One word of warning, my steel crucible was eaten through and started leaking after a few uses, you might want to swtich to graphite clay crucibles. A high power propane set up can even melt steel, and you don't want that when it's full of aluminum!

  • @davidnielsen4890
    @davidnielsen4890 6 років тому +1

    Have you tried adding a bit of charcoal or coal to the crucible in order to consume the oxygen and prevent oxidation, or do you think it would just add to the impurities?

    • @PaulsGarage
      @PaulsGarage  6 років тому +1

      +David Nielsen I did just that for the copper melt I did, but for aluminum the aluminum oxide skin is somewhat protective

    • @davidnielsen4890
      @davidnielsen4890 6 років тому +1

      cool. Thanks

  • @phuturephunk
    @phuturephunk Місяць тому

    Cans are made out of 3004, so it's an Aluminum Manganese alloy. Largest share by volume of aluminum that's produced industrially.

  • @samueltaylor4989
    @samueltaylor4989 6 років тому

    Yes

  • @emceha
    @emceha 18 днів тому

    What about crushing cans, could it help?

  • @1889michaelcraig
    @1889michaelcraig 3 роки тому +1

    Aww man I was hoping it had caulk in it. I thought thats what binded it all together lol

  • @ratrecycling8265
    @ratrecycling8265 5 років тому +1

    another funny vid! I used wood & used hair dryer on medium. Also used vegetable oil, or fat! gives it a boost! Got the idea from vegeoilguy from yt

  • @brettpeterson7078
    @brettpeterson7078 7 років тому +1

    Can that homemade smelter melt copper

  • @edgeeffect
    @edgeeffect 3 роки тому

    I make my initial pool with bits of cast aluminium.... don't know if that helps much at all but it's what I do.

  • @powers2440
    @powers2440 7 років тому +1

    idea for dealing with dross try to find a iron mesh that can sit at the bottom of the extigusher with pieces that stick up that you can grab and pull up to strain the dross. It might be a bit overkill but an idea

    • @PaulsGarage
      @PaulsGarage  7 років тому +1

      that would be pretty nice. the mesh would have a ton of surface area though and i would be worried about the steel dissolving into the aluminum.

    • @NoahBenzing-ru5st
      @NoahBenzing-ru5st 5 місяців тому +1

      @@PaulsGarage Lies! Your TWO DADS won't let you pour aluminum muffins ALONE!

  • @LearningByGaming
    @LearningByGaming 7 років тому

    Awesome video! I'm very surprised how many aluminium bars you were able to create with this amount of cans. Has the area in front of your garage turned into a place for ice skating after you've emptied the bucket? :-D

    • @PaulsGarage
      @PaulsGarage  7 років тому

      it did get icy! We got freezing rain that night so i wasnt concerned about the water from the bucket, the whole city got covered in ice lol

  • @nortoro1
    @nortoro1 7 років тому

    The most important question and one that I haven't seen asked is: where are you finding the throwback MTN DEWS?

    • @PaulsGarage
      @PaulsGarage  7 років тому +2

      I think it's a regional thing. When i lived in Boston i had a hard time finding any of the alternative kinds of dew, but here in WI there is about every single kind of flavor MTN dew sold at every gas station and grocery store. It's like... heaven

    • @NoahBenzing-ru5st
      @NoahBenzing-ru5st 5 місяців тому

      Same place as your genetic throwback siblings/relatives when they go looking for (SOME KIND/ANY KIND) of love...... in one of 14 city trashcans outlining the nearby metro bus transit.

  • @521cjb
    @521cjb 6 років тому

    Is your poking rod a hollow tube, like conduit ? If so, it will heat very quickly as hot air runs up the inside like a chimney. A solid rod like a chunk of re-bar or an old fashioned tire iron will stay cool longer and remove fewer fingerprints.
    Keep on cookin' .

    • @PaulsGarage
      @PaulsGarage  6 років тому

      +521cjb yeah it's hollow but there a bunch of junk jammed in it. It is copper though so the heat conducts right up the pipe and into my hands! That thing gets hot surprisingly quickly!

  • @marzocchi92
    @marzocchi92 6 років тому

    mad max reference !!

  • @ezekielbreedlove7698
    @ezekielbreedlove7698 Місяць тому +1

    Percent cannot be calculated by weight but by volume because the wieghts are very different!