Not aluminium

I used to work in an iron foundry this blows my mind. yet every one still has their fingers and toes from what ive seen.

No its just like the old days 👍

ikr? Guys will be guys though. Better to lose some toes than appear fearful or incompetent.

@@sgtstadanko880 the one that have accidents probably don't work in the industry any more.

indeed, far too hard for a very mediocre result (at best)

They make them and none are harmonically balanced to go on balanced pistons. Yeah I don’t think the engine will last it’s life time.

@notfiveo SWARF!

ol, you have no clue of what you are talking about obviously, this is not top notch by any standard.

Obviously, you have no understanding of machining tolerances. I am a retired ASE certified master engine machinist. The tolerances I was required to use were measured in ten thousandths( one tenth of one third of a human hair), not using a ruler and a set of dividers.

Cast iron is a great piston ring material for automotive too, very low friction compared to other alloys thanks to graphite stuck in its crystalline structure. It's only recently that cast iron was replaced by steel since modern engines are getting smaller and smaller but make more and more power per cc to beat regulations, and steel can resist abuse substantially more, especially when running it thin, again, for "fuel saving" purposes.

There are many grades of cast iron. A company once went through over 100 variations when designing a sleeve valve aircraft engine.

Even seems like the air compressor piston was also home casted, at least when you look at the last 3 rings the put in, when you get to see the inside of the piston But 3rd world country as we call them, seem to be good at repairing almost everything, if something break, make a new one. should that break, make one more

@@david929190 We have a company in Norway "Tizir" have over 120 different mostly iron/steel alloys to pick from, if you dont make a custom order that's not on the list, they make it for you fabric's over the whole world come to buy it, due to it's good quality.. Even the Zink they make here is amazing and that's Boliden

“Recently”? Try the 1960s. Steel piston rings have been used in aircraft piston engines since before WW2.

kzfaq.info/get/bejne/od1zftyGm9-rlaM.html

You mean these rings in the video is better?

@@charbelmaroun9914 I did an apprenticeship with a company called specialloid pistons which went into liquidation it was rumoured to turn out about a million pistons a year that's excluding piston rings and gudgeon pins they also manufactured aero engine pistons they were a supplier to Perkins diesel engines and can still be found today on the internet. They also manufactured for early diesel locomotives the delta engines and of course marine engine pistons which were like dustbins.

sunak and co would have every machinist in the uk working like this if they could abolish the trade unions since thatchers treachourous reign wages have went up about £10 in 40 years unfortunately most of the old knowledgeable gits are retiring and no one to replace them , what a total disregard for skilled men shame on you britain 😢

@@eweunkettles8207 What a load of twaddle! British machinists today work in safe clean conditions. They have the best world class equipment, best on the job training and are amongst the highest paid in Europe. They drive to work in their own cars, live in their own modern houses and have four weeks of paid holiday a year. They travel abroad with their families and overall enjoy an excellent standard of living. Take your picket line rhetoric away to some place it might be believed. There's no way can British manufacturing be compared to the third world amateurish and dangerous methods seen in Pakistan KZfaq videos.

Very good 👏👏👏🇧🇷

Им бы свои штаны удержать, что бы от голода не подохнуть. Там на всю компанию дай бог один чурка с каким то образованием. Эти обезьяны чуть ли не с рождения идут работать чтобы прокормить стаю домашнею, где мамаша рожает каждый год

кольца то сырые , одноразовые!

​@@MsAndrei4Мастер отливает из старых чугунных блоков,качество должно быть на должном уровне

kzfaq.info/get/bejne/od1zftyGm9-rlaM.html

@@Anton-cr3gt Согласен. Там, тут напильником, потом молотком и большинство замеров на глаз. Качество уровня Тойоты 🤣🤣🤣

It would have to be for a very specific purpose I’d think, because it wouldn’t be able to hold work in place under normal turning work.

*I've never seen anyone get Lung Cancer before!*

@@johnsluggerMaybe you will see it on yourself as the first kid then

@@trappenweisseguy27 You wouldn't say? You must be related to Einstein lol

Поляк?

kzfaq.info/get/bejne/od1zftyGm9-rlaM.html

@@user-ml3nv2ym9u no raczej

ну погоди,ещё пяток лет под санкциями и ты так будешь.

Basicly it's incredible. These people know what they want to produce: piston rings. I'm affraid that's about the limit of their knowledge. They simply repeat a proces "coz we always do it like this!" Metallurgy or Quality Control is way out of their scope. Yet their products may have some acceptable quality. They simply don't know. Good quality? -"Yes, sir!" 😃

أظن إمكانياتهم محدوده يسعون فقط لكسب لقمه العيش....هذا يترتب على الدوله أو الحكومه أصحاب السلطه يجب عليهم إنشاء مراكز بحثيه بهذا الشأن... أو معاهد علميه اكاديميه بعلم التعدين.....ولكن على أي حال عملهم شاق ومتقن.... تناسب طبيعه الصناعه في بلدهم......

cast iron is hard wearing and self lubricating , notice how the cores are cast vertical , and left to cool slowly in a pile of hot stuff all good practice a hand held PMI tester would analyse the composition instantly , i doubt the addition of alloying elements would improve the performance the ring must wear initialy to suit the bore after bedding in wear is very slow and will give hundreds of hrs service

@@eweunkettles8207 I don't hope "hundreds of hrs". A regular car engine has a lifetime of ~10.000 hrs. Professional engines (locomotives, generators, industrial) will run ~100.000 hrs without any problem. That is the point where Quality Control (and Metallurgy) enter the game...

@@richardhack9830 these guys would laugh at the paper trail that a typical q/a system would bring , how do you get material certs for old brake rotors and blocks besides if they wear out a bit early theres always more , keeps the foundry busy and a curry in the pot for the family yankee ize it and its gone

talc

😂😂 The part of burning the toes is tidiest 😢

lol, for an beaten air compressor maybe, but this is not combustion engine piston ring, it is dubiously made, from scrap metal.

What language are you writing poetry in? Italian?

@@pcka12 Castellano (español)

@@Hollygolligthly Castillian! We seldom recognise that Spain is built from discreet nations some with their own language!

عالم الفن ربنا يحفظكم

​hartlepool tory style 2023

Red Wings makes them, Cheap!

I like it so much that I bought the company.

What are you using it for? Cracking walnuts?🤣🤣

@@caddyrack no, just general use - 300gram, by Gedore - German brand, I think. It works especially well for small chisels and center punching.

Это Пакистан!!!! Не Индия блять!!! Вы географию учили?!!!

На китайских запчастях пол страны ездит, а там схожие производства, только эти на совесть делают, в отличии от узкоглазых.

Скоро индийские машины будут у нас продавать вместо европейских

@@user-y6ancif86b Тут, конечно, соглашусь. Я тут кольца, поршневые, китайские покупал и поршень, вот видно, что станки хорошие, высокоточные. Ну, они как специально в размер не попадают, вот как будто именно, чтобы было плохо по-китайски.

ну лет 10+ под санкциями,и ты будешь покупать точно такие же запчасти,но уже импортозамещёные из РФ

I have a friend who has to make some 6 inch piston rings, for an old steam engine he picked up. Do you have any advice how he should proceed? He has a Bridgeport, horizontal mill, and a 12 inch, plus 15 to 17 inch lathe. Or do you know where he could get the rings at a reasonable price?

@@qwerty13380 I am unable to advise a supplier in Australia who will be able to supply your friend with his requirements, Being a member I suggest contacting the engineering section of puffing billy society in Victoria, they should be able to assist in obtaining a supplier, or they maybe able to manufacture what is required, some points to remember, (1) the cylinder bore must clean, parallel, (2) depending on age the cylinder bore surface may be glazed and will need machining to remove the glazing, (3) making piston rings from grey cast iron is not advisable based on my engineering training in the railways of NSW in the 1960's, "the users" as they were called were cast in the Eveleigh Foundry from a formula supplied by the railway lab at Redfern, I cannot remember what the ingredients were, I only remember the items used for making cast iron brake shoes, of iron, glass (silica) steel.

​@@qwerty13380I've seen rings cut from old brake disks and they worked ok and if they wear out it's cheap and easy to just make more

@@afs5609 Thanks AFS. BTW, my friend and I, live in the USA.

​@@markshort9098The trouble isn't procuring new rings. The problem is the engine has to be stripped to replace them, then rebuilt.

Из металлолома кольца для поршней!? Для этого нужен специальный износостойкий легированный метал и спецзакалка.

@@user-uo9ly4gj9m кольца чугунные, какая закалка, чудило ты

Тепловой зазор нужно выставить, напильником - все по книге. А вот "надевание" в конце это ужас

These are Pakistanis

Им не надо надежно, им надо много и быстро

well, you must not be well informed the, because these rings are obviously not for any combustion engine, they are only suitable for very low quality air or gas comrpessors, and even there they certainly have a very limited service life. Everything is wrong with this operation,, everything, from the material, to the operations to the finishing. You can see how the rings are not even centered on the lathe when they do the "surface finish". it is a joke.

@@lo2740 Precisely. The rings are machined in whichever fashion they fit in the lathe, one side they will be having thinner walls, other side thicker. This is pathetic to watch. Complete third world country recycling sweat shop.

They’re working on dirt floors and that dust is going to get everywhere 🤷‍♂️.

@@trappenweisseguy27 IDK if you have ever machined grey iron, but the swarf is abrasive enough on the lathe. The burned sand crust is murder on the tooling and is like throwing liquid sandpaper on the ways as it mixes with the way lube.

There’s a shocking disregard for cleanliness and protecting the machinery considering that it would have been a sizeable investment for them in the first place. And they use a toolpost grinder, which is going to literally throw abrasives all over the ways, and later machine over the same surface 🤨.

@@trappenweisseguy27 in many such clips, they throw the completed parts in a pile on the ground as well. Go figure.

Yes, clean the casting, and if I didn't put a piece of plywood over the bedways to rest the job on before I mounted it in the chuck, I got my arse kicked!! 🙂

kzfaq.info/get/bejne/od1zftyGm9-rlaM.html

the engines they are making parts for have regular ring replacement procedures. Kind of like buying a KIA in the US and replacing the engine every 30k.

@@tonyb7748 Ahhhhhhh...thank you I'm used to getting 300,000 to 450,000 miles out of a automobile engine, 550,000 to 750,000 on a semi diesel engine.

@@Absaalookemensch thats outstanding! You must have a very good maintenance regimen.

@@tonyb7748 That and I don't treat vehicles like race cars. Those who treat their vehicles like race cars will maintain them as often as race cars require. Even though I normally drive 5 mph over the speed limit, I still get great gas mileage, go 10 years between new brakes in my automatic cars and last traffic ticket was in 1998. Before that was 1987. I was young, stupid and driving a car like a race car. But I learned.

In most cases, especially this size, the piston rings are made from regular grey cast iron. Their choice of scrap material identifies this. It is quite possible that these rings are for compressors. The piston 21:27 they are using for reference is a double acting piston, meaning that it is most probably for a compressor.

I bet UmUrica has been buying these rings from them all along. WAY before UmUrica even became UmUrica lol