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Is the air of the vacuum cleaner sufficient for the cupola stove? can you please answer

Are the 7-8% bentonite in the greensand mixture measured by weight or by volume? I found mine does not seem to get the desired strength so I added by feel. It ended up being way more. Does anyone have some resources (books, papers, CZcams channels) where I can find more details about moulding materials? :)

My dad did this in early 60s

Thank you for the video, I got one of the tungar bulbs as a gift today and I find this vid on the 10th anniversary of its release date.

You are awesome

Which did you use sand?

Ese defecto es por aluminio contaminado ,puede ser antimonio ,zinc u otro metal de aleacion .Quizas con una temperatura mas alta podria mejorar ,pero no es seguro que pase . Para desgasificar el aluminio uso cloro en polvo (el que se usa en las piscinas ) una cucharadita de te por kg de aluminio ,luego una cucharadita de sal comun de mesa ,quitar la escoria y verter en el molde .

Do angle grinder discs leave traces of impurities in the alloy when cutting? Just a thought, maybe plasma cutter or sledge hammer would be better. .🤔

You didn't mention the rod you were using to stick weld. I think 20 volts would be a little low.

Very interesting

Lucky, if you not going to use all of them we can buy leftovers (for a fair price)

good on ya mate sort of well done

How are you charging discharging indivedual cells? Are you removing the connector straps? And if so, how are you reconnecting them?

not sure what I got out of the video, but it was interesting and held my attention all the way thank you

I wouldn't trust them very much, it's hard to tell the internal electrolyte damage from the idle voltage drain. It's less risky than recycling high C lipoly cells though still need to be cautious.

Very interesting. I have one of those old SIP welders. It's been rather average as a welder, but perhaps I can make use of it, like you have. Curious to know more about the ad for the batteries. I thought a 20v drop with the redgum was pretty good actually, I expected more.

Awesome battery score and the upcycling is a bonus.

Interesting video! A few years back, I grabbed a few discarded laptop battery packs, dismantled them and separated all individual cells, to recover them for other uses, but I never managed to salvage more than 60 to 70 percent of them - there were always cells that never recharged properly and tended to get hot. You seem to have recovered all of yours, which is impressive!

That is awesome. Even if you strip the batteries down like I do, you can biuld your own 12 volt battery for power supply or solar power setup as a backup power to run just the fridge in a blackout situation! Or go through and charge/discharge and test. Then reassemble and go to cash converters and buy a power tool to suit. Mate that is an awesome score!

Get yourself a nice insurance policy or get some metal cans to store them outside the home.

I use powdered/fine silicon carbide in foil packet to the bottom, mix, then lite salt in a foil packet pushed to the bottom, let melt and then mix in de-dross. Saw chlorine solids being used as well for more advanced de-gassing but thats pretty iffy on the safety side as it makes some seriouslly nasty gasses.

A few years ago I made a wheel melting furnace from a 55 drum and made a shallow funnel from a top of another drum. Since this video was made, we burnt a hole in the bottom of the stainless steel pot, so i now use a cast iron Dutch oven to catch the aluminum. All the nasty remains on the funnel. Very little dross skimming. I pour it all in to ingots. Nice clean aluminum to use in my electric furnace that i use for casting. czcams.com/video/l7tqOxzmGj0/video.htmlsi=0fmm3S_a2xcX81Fd I’ve never experienced the issue you’re having, but i only use petrobond, and lost foam in dry play sand. No experience with greensand.

Hello, what type of cast iron can I use for press??? 

Hello, what type of cast iron can I use for press??? 

Hello, what type of cast iron can I use for press??? 

Hello, what type of cast iron can I use for press??? 

Hello, what type of cast iron can I use for press??? 

Great video. I have some time on my hands these days, bought a small furnace. I just changed the brakes on my buddy's truck. Looks like I have some experimenting to do. But first, I want to make sure I have a clue as to what I'm doing, and do it safely. Thanks for making this video. :)

What luck, found the only microwave in the world with a high frequency inverter. 😏

This may be a silly question.But what's the loger red airline?We call in the states Chicago line normally air.Is that what that is

Bentonite and coal are added to this material, right?

Can someone suggest a general of how high above melting point is best to pour any medals?

Large grain salt is a problem

Hey mate another Aussie caster here just wondering where you got your metal casting frames

Ok seeing since not many people were able to comment idk haven't read them yet to compare my knowledge but so far the majority of any battery thats non lithium ion are good source for nickel that would be all disposable batteries mainly and car batteries and check all those tire balance weights I never pass one up on the ground ever since I seen a guy years ago when nickel was alot less at the yard this guy had a five gal bucket almost full barely could even lift it fetch almost 400 bucks so yeah no I do not pass one up if im driving ill be the jackass to stop my car in the middle of the road for one lol I've noticed alot of electronics castings old school castings toys or tools or etc check those again the electronics I think the metal hinges not the monitor long bolt on brackets but the actual little hinges in laptops are nickel and many more components are in some electronics as I take them apart for scrap and sometimes they were in the rain rusted but you can notice a good chance what doesn't rust especially with the color and again low magnetic force umm costume jewelry costume jewelry is another big one I think you'll find lots of nickel or nickel alloys stainless steel if you wanna get an electrolysis machine on a bigger scale all stainless steel is 10 percent nickel and we know how heavy stainless steel accumulates even steel as well as exhaust systems on cars or in general as well again need a bigger scale electrolysis method just grab a tub and use for those slow guys for the slow crowd your pocket no I joke your piggy bank lmfao no ok 🤣 it may just be a little smart to look up nickel ores as I found out my house is sitting on a GD INTRAVENIOUS HIGH LEVEL INTESITY SCREAMING RICH PLATINUM AND GROUP METAL PROPERTY my half retarded mother who needs the money won't let me dig up her husband's parking space where the monstrosity is as the vein is slowly opening and his parking space is already almost obsolete for his little poor Honda screaming help maybe the earth will eat it and burp up a platinum one lol what about heating elements are those nickel or not I can't remember off the top of my head but yeah thats what I can add to this now to read comments to see what I don't know and feel gmfree to criticize me it only betters my knowledge and learning experience I don't know it all so I take no offense your just teaching me better stuff I don't know why bozos get offended learning something new thanks guys.

Looks mildly contaminated. Just cast ingots first if you have the ability. Should clean up a bit.

If we use the ferrosilicon, Fe will contaminate in the alloys?

How about the temperature to dissolve Si in Cu?

Greetings, my friend, you would have to make a large oven, insert the entire tire without cutting and when melted, pour it into ingots so you use portions in the small oven.

Привет дорогой друг! Не используйте для литья алюминиевый силуминовый лом, сначала необходимо первичная переплавка очистка

I knew a bloke who cast stuff years ago. He said he only uses aluminium that is machined, if you can machine in a commercial setting it has some quality about it. His go to material is car rims, the same as yourself. As for cutting the rims up, plasma, I can make perfectly good metal in to scrap with one of them.

You need to preheat the mold to stop freezes.

I've saved a heap of small engine (lawn mower) alloy bodies. I guess they'll be useless? I do have two car rims though, but as you say, very difficult to chop up. I read a lot of the comments and it appears silicon is the culprit. Are there any additives that can be used to to lessen it's impact? oldfoundryman suggests strontium or sodium, a lot of derivatives containing those, so which to choose is beyond me. Interesting video.

Cans are not made of the correct alloy for casting. They have additives for extruding! Only use scrap castings to acquire casting material. Alloy wheels, crankcases & pistons are way better.

could you use beach sand, such as the squeeky one we have on the Gold Coast, thanks mate

Interesting >> More 'Big Bore' Vents Preheat the Mold. Add small amount of Cadmium Pressure the Aluminum at the end of the pour before total solidification. Don't use old Aluminum castings. There's a list of tips for you.

Hi you probably don't want a Kiwi telling you what to do but I have been a supplier of Al and Cu base ingot to NZ and Aussie for a fair few decades now I will refer to alloys by the Australian standards but these alloys have equivalents world wide Wheels are CC601 that is 7% Si for moderate fluidity and 0.3% Mg for heat treatment and 0.05% Sr for grain refinement the smaller castings like alternator bodied are pressure die casting alloys like DA401 with 12% silicon and 1% iron very fluid but very subject to surface shrinkage such as you see also your remnant ingot and sprue top indicates this alloy Bell housings are often CA313 another pressure die casting alloy 9%Silicon 1% Iron and 3% Copper often very shitty ( technical jargon ) and the Cu% causes corrosion Forged wheels have no Silicon and run very poorly wheel may have the word geschmiedet on it you have no riser to help feed the casting however a large runner bar and in-gates can be better for the type of casting shown and allow the casting to feed instead of sucking in the surface Good to see your sprue taper toward the casting The finer grain toward the surfaces is purely due to the faster cooling rate against the sand I know wheels are a bugger to break up but they are the best option for sand casting short of paying twice as much for certified ingot and the CC601 alloy develops micro porosity in the center rather than huge sucks on the surface Good luck with your castings

I'd recommend getting a copy of "Casting Aluminum" by C.W. Ammen ISBN 9780830619108 published by Tab Books, 1985. Great book, goes through everything and pretty sure it explains what you're going through and what to do about it. I have the book around here somewhere but it's been years as I used it for a science experiment back in the early 90's for school. Seems to be pricey nowadays but you may find it at the library or elsewhere. Good luck.

long time ago i had an e-book about aluminum and all the varied processes, one thing it talked about was the specific alloys that were best for casting, extrusion and machining, you _might_ be able to use a camera to figure out what alloy you have when it's hot, then amend with a high alloy ingot.

What temperature are you pouring at? Those look kinda like cold shuts, and I wonder if the alloys you've formed by mixing scrap just need to be poured with some more overheat.