Sintered bronze. They make air filters out of the stuff. It's made by taking very fine bronze particles, heating them to just below their melting point, so the individual particles stick together but don't form a solid cohesive substance. Sometimes they impregnate the voids in this material with oil, using a vacuum to create self lubricating bushings, known as Oilite.
Holy hell that is not what cpm is 😂, crucible particle metallurgy actually liquifies metal and sprays it while liquid through an injection nozzle that vaporizes the molten metal as it comes out of the nozzle, it’s essentially misted metal that is spray formed into an ingot.
This reminds me of how plastic filament can be infused with conductive metal particulates and printed at home, sintered to remove the plastic, leaving a porous metal part for repetitive electroplating, which builds up the metal density.
@TSjFoolishW What impregnated? This is and has been the technical term for such uses, where a similar piece of rubber or urethane bush wouldn't be stiff enough for such satisfying fitment, but stiffer piece of metal wouldn't work, because steel doesn't hold lube well enough to keep maintenance down to be cost effective. Not exactly right. I just wanted to throw as many innuendos in there as possible. They could potentially use a ball bearing, but that also requires the occasional lube job. In a lot of cases though an oil impregnated bearing will suit the job. Depending how hard she's ridden.
@@andrewbeaver1843 "lube job" 💀 Jk, today's generation has their minds in the gutter because they will think anything is a reference to intercourse lol
Oilite was the "original" trade name. Mix bronze dust with about 20% inert crap, pressure form it at casting heat, then rinse the inert crap out. You end up with bronze that's 20% voids. Machine it to size, drop it in a tank of oil, then draw the tank to about 15 inches Hg vacuum. Voila, oil impregnated bronze, as used in cheap bearings all over the planet
@TommyShlong a pleasure Tommy, glad to fill the void for you, lol. Most impregnated bush/bearing retaining shells were equipped with oil cups (before accountants took over industry), and keeping them topped up made such bearings quite long lived if not overloaded, or loaded improperly. Now, only "high end cheap stuff" will have cups for impregnated bushes, and the low end cheap stuff is intended to be disposable
if it's sintered powered metal, it's porous, I have done that many times for enjoyment. Depending on the density, you can watch it absorb water too if you like, or oil. We sometimes oil dip the parts to provide a self lubricating part. It works to a certain extent for certain applications. The oil stinks though, I hate that operation. Fortunately I don't have to do it. I mainly do machining, but I have done virtually every operation over the past 20+ years i've been in the powdered metal industry.
Yup, pulled a transmission from a mid 90s Chevy and the pilot bearing was made of an oil impregnated bronze. Had over 20 years of use and a couple hundred thousand miles and still looked just fine. Have seen ball bearing type pilot bearings fall to pieces in half that time and use. Guess it would technically be a bushing in the case of the Chevy and not a bearing.
GM used this centered brass for gas filter in the gas inlet of their carburetors. We would change them when we did a complete tune up every 12,000 miles. Those were the days when you could make money doing tune ups.
I had a similar experience when pressure testing intake piping for a turbo system I was making. I used cast aluminum elbows and was very surprised they were porous and leaked through the metal itself.
@leehaelters6182 they type that does random quality control test to ensure the bearing contain the correct amount of lubricant to help ensure the machines they go in don't suffer a premature failure. Like you before date nights ;)
I buy this stuff all the time and machine it for bushings for combat robots. Amazing to work with FYI just max out the spindle rpm on the mill it's like cutting water the only speed limit on the mill is you and the feed torque of the mill. Cob mills can easily tank a 80% tool with 3x depth at 4tho per tooth around 800sfpm have fun also fun for testing programs and mill features on as it's got some give in the event of a crash
@danielhawryschuk605 I don't proof my feed on programs for the material I just max it out and let it run and look perfect every time self lubricating sintered metals are always fun to play with we just don't get the excuse to cut it all the time lol. But honestly I cut a lot of crap in my home shop everything from this wet snow to g23, D2 and lots of 7075 or 8245 t4
@krietor used to work in a factory where its made. Its lubricant and metal powder that they press together very hard with heat. We also used to repair the bearings by re-inoculating it with lubricant by submerging it in a vat and drawing a vacuum, when the vacuum is released the lube can fill the microscopic air gaps.
If it were cast (no such word as casted) it would also have porosity, though probably not to this extreme. I used to have to have some cast aluminum parts impregnated and then performed the final machining. They did this before being sen out, but only on the thinner walls. On a related note for the viewers out there. There is alo no word such as grinded. You ground that section of the game. You eat ground meat. You ground that part to within 2 microns.
Don't get yourself down. Im really sorry for your situation. Sometimes everything gose sideways. Hard to see all the angles under a flood of emotions. Use this opportunity for a change of perspective and grow stronger my friend.
@@meatonpthings that got lost in translataion.. The literal translation for me is "Bronze Bearing" - but you are right its bushing in english. I think we have a similar word. :)
@@meatonp Ain’t it plane beating like Babbitt metal? My language clearly distinguishes from plane to one that use ball or pin but English doesn’t. I had hard time explaining things cuz there’s no equivalent word. In English pretty much everything is bearing.
Either two things. Oil as others have point out. Or its the water vapor from your compressor as you are shotting the air into the porous material the water vapor is slamming against the surface of the solid pieces and reforming into water.
A high end compressor (which im assuming is high end since it has a cool nozzle) should have a water trap, even our shitty homebrew job has a water trap, we fitted it when were respraying our car
I've had to watch this back to back like easily 20 times no lie and as satisfying as it may be to watch, but I don't know about you but that just broke my brain. 😂
Lol I'm a toolmaker/moldmaker and I have used something similar only steel rather than bronze. It's called porcerax and it's designed to let air out of a mold when plastic is injected. Venting air where you couldn't put a typical style of vent. It's pretty cool but we don't use it often in our designs. Never seen the bronze version before thanks for sharing very cool.
Видел похожую латунь, в виде толстостенного стакана, вроде фильтра для масла, на каком-то металлообрабатывающем станке, иностранного производства. Но там было и так видно, что он спрессован из крупных микросфер латуни.
Back in the day of carburators some old or cheaply mades carbs could leak fuel right through the float bowls and onto the engine, potentially a very bad thing. Porous metal.
Geniuses, the metal is made up of two pieces. There is liquid trapped between the two pieces of metal and when sprayed with air the liquid is pushed underneath and out the other side. It's not a solid piece of metal.
was about to say sintered but other comments already did so ... what is sintered you may ask? it is basically a metal pulver compressed and baked to the point that the small metal pulver fragments start to melt and fuse with each other just a tiny bit so that the resulting piece will have a porous sponge like structure whilst beeing a mechanically solid piece of metal.
Cast bronze, brass, aluminum and even cast iron will always have some level of porosity due to many different factors with the end result being air pockets and holes in the material allowing air and liquids to pass through seemingly solid metal
Its microporous sintered stoof. Basically a super micro fine long service life filter. Often used for gas filtration and purification, some modern turbines/jet engines, oil refining, chemical manufacturing, etc. Some are even used in chemical and pharmaceutical industries as catalyst beds, via plating. Some DPFs and SCRs are made using such mfg techniques. Modern mfg is cray cray. This is made possible solely do to our ability to make sieves fine enough to sort metal powders so precisely, and make such fine metal powders in bulk.
I machined some bronze called oilite, it was pre lubricated so every time I ran a part the coolant would blast most of the oil out and the bottom of the parts would be covered in it.
I would say the air is imparting vibration on the brass wgich transfers it to the water. Not to mention air moving over the object causing a low pressuer zone on the inside of the cup.
I love to see all of your comments concerning lubricant and air near his keyboard, we use wireless keyboards and mice in the shop. We have 5 or 6 spares in the supply closet at any given time hahaha. Wireless keyboards are cheaper than most carbide endmills we use 😂. They are consumables.
Its an "Oilite" or porous bronze bearing, which is like a sponge to permit oil to penetrate in and lubricate the shaft. They are the same bearings used in window fans and fart-suckers in bathrooms. Kept lubricated, these things last just about forever. They are great in low-load applications.
It’s possible because it’s something that in the parts world is referred to as “oil light”. It’s because it’s very porous and will retain a tiny bit of lubricant that helps prevent undue premature wear.
random electrons from the air move electrons from the solid brass and create energy effect and move the air and liquid from another side wall ( like a magnet )...
It’s powdered metal which is compressed and heated. The process is called Sintering The lunar module had fuel cells that used sintered platinum plates as a catalyst.
Sintered bronze bushings are absolutely everywhere, small motors, printers, copiers, car door hinges. Every home probably has hundreds of them in every imaginable consumer product.
Sintered metal is basically pressed powder and can have entire networks of pores and voids for fluid to enter and pass through. Comes in real handy for lubrication.
The liquid inside that whatchamacallit metal cylinder is somehow conductive, and moving that electric wire on the outside caused eddy currents. It's the only explanation I can offer!
Watching this and reading the comments, I really learned something here. If someone asked me if brass could be pourus I'd have bet my house it couldn't be
Most of the conflicts in this series seemed dramatic but plausible. Hijacking an asteroid that could have so many enormous damaging implications is just so unbelievable even stretching my mind around it. They get caught even if all goes well…. Then what?
I thought it was going to be from extreme pitting , possibly from excessive moisture when pouring into the mold but I was just guessing but apparently this is supposed to be like this and by what I've read it seems to be for oiling 🤷
As pressure increases, temp decreases, and as volume increases, pressure decreases. Layman: there is a tiny hole with a LOT of air rushing through it, creating a small pocket where some vapor in the air can condense, forming water.
It has porosity. Probably can't see it. But the material is super porous. We deal with this all the time with castings. We make parts for the US Navy. Submarines and Aircraft carrier that must go through NDT for this very reason. 😅 For the people that is saying it's oil impregnated. It's possibe. Not sure how anyone works in a shop and doesn't know that lol
Scientered bronze. Made up of tiny bronze beads heated just to the point where the surface melts, fusing the beads together which leaves gaps between the beads for passage of lubricant.
Its porous. Probably made from powdered metal sintered together. So long ad it doesnt to be made air or water tight its a great way to save on weight of the part without a significant loss in strength. Can also be used as a filtration device. Kinda surprised its machined though. If your gonna make a sintered metal part you might as well 3D print it these days.
It’s called a small intergalactic particle portal key that helps you travel through objects,space and time. A special key is given to all the cleaning maids these days….it saves time and money and every cranny gets cleaned.
If what that hose is blowing is cold enough, the water particles clinging to the inside would have frozen and then unfrozen very quickly, making the water seemingly appear
