We are at our friend's birthday party so I am not going to spend too much time on the comments, but enjoy the video! And try out the virtual press here me3d.app/hpc?guest&
I may have commented as such before but I must reiterate that I truly enjoy this kind of content that takes a real world part and illustrates how it fails. Crushing random things is fun and all but there is very little to learn from it, this is different.
Great content. There is an industrial solution for relieving pressure known as burst discs. These are used to protect equipment, such as chemical reactors, from over-pressure events. They typically have burst pressures accurate to a percent or so of their designed relief pressures and are available in a variety of sizes and pressures. I have used burst discs as small as 1/4", and our plant had some up to 48" in diameter. They are basically thin sheets of metal, often with manufactured score lines, that are held in holders with pipe threads or pipe flanges for connection to the system. I have used discs from several manufacturers, including Fike and Oseco. I recall that Myth-Busters used Oseco brand discs for measuring blast wave over-pressures (fairly large area discs, with low relief pressures). Oseco's standard discs are available in 3/16" to 1" sizes with opening pressures up to 3400 Bar. I was thinking that you could put a holder on your cylinder, add a 1000 or 2000 Bar disc and then have a pipe on the outlet side to act as a barrel for some projectile (metal cylinder, bearing ball, etc.) to create a hydraulic gun (assuming this would be legal in Finland).
I thought this earlier today. Just didn't realize that I could use high pressure burst discs for. I have to definitely build one :D I also checked the gun law, they have made a mistake! It says that for guns that are over 6.5mm in caliber and use pressurized GAS need gun license :D Nobody thought that anybody would be stupid enough to build a compressed fluid gun :D Might be world's first? and last one :D
@@HydraulicPressChannel Interesting. The legislators who wrote that law must have believed the bit about liquids being incompressible. I will definitely be looking forward to your results.
@@johumm455 Good thought. Probably used on rail tankers also. Compressed gas and liquefied gas cylinders also use then (often in combination with fusible plugs to relieve pressure if the cylinder is exposed to fire). Might check out your welding supplies store as another source for burst discs.
If you wanto ro need to try the steel plugs again, try turning down the peaks of the threads, but leaving the full length threaded. Maybe in 200 or so micron cuts. The thread failure will be more abrupt because all of the threads have to fail for one of the threads to fail. By varying onlly the length of the thread as you did the failure mode is differnet depending on whether it is the partial thrad on the plug that fails, or the partially engauged thread in the bung ID. In the latter case, the remaining intact threads in the bung ID have to fail sequentially, not simultaneously; significantly increasing the acra under the curve by extending the time axis.
I'd suggest turning them down conically, so that the "outer" thread (nearest the head of the plug) needs to give and will encourage the inner threads, at a smaller diameter, to pull through the damaged opening.
I swear to God I subscribed this channel like 8 years ago thinking "how do they keep thinking of new things. They should run out soon but this is great for now." And shit man, you guys just deliver over and over. You started a trend amd outlasted it by sooooo much. I love this channel rs
That's actually a really reassuring mode of failure for the plugs with enough threads for them to just crack and release all the pressure in a messy spray rather than an explosive failure.
piping failing under high pressure is one of my favourite destructive thing-behavours. becuz, in industry, if such a pipe fails, a lot of other stuff fails immediately afterwards
Make a threaded plug out of soft plastic like Delton and thread it into the fitting first and then screw in the bolt. That way, the plastic will deform and seal the leak without squeezing through the threads but still transmit the pressure to the bolt. This video brings up some interesting questions like how good do different methods of sealing threads work and how do different connections fail.
This video gives me a very reassuring feeling for my new job, where I'm going to do maintenance on 2500bar piping and compressors. A good reminder to follow all procedures very carefully!
This video not only Lauri is extremely entertaining, but also his engineering skills. In his own words: „He does know shit“. To come up with the reduced threads seems simple but it really close to reality when things fail.
Yes! More content about catastrophic failure of hydraulic components! Great visual safety learning for young people starting their careers around hydraulic equipment!
"This video is absolutely mind-blowing! 😮 The suspense of watching that pressure build up and then witnessing the plug blow off at 1000 bar is both thrilling and educational. Your experiments never fail to amaze, and the way you capture the raw power and unpredictability of these extreme forces is simply incredible. 🌟 It’s fascinating to see science in action like this, and your dedication to exploring the limits of what’s possible is truly inspiring. Thank you for continuously delivering such jaw-dropping content that keeps us all on the edge of our seats. Can’t wait to see what you test next! 🚀💥"
You could also cut the brass connector thinner from the outside using the lathe and plug the end totally. When that brakes, the part that's still detached to the cylinder should be easy to remove from the cylinder because it's connected to outside threads.
YES!! Colab with another genius! Hi Michael! (Please forgive my American ignorance of spelling your name. I don't even know the name of the guy standing next to you. 🤩😒) I know I respect and admire you both. 🤩
These more extreme ones are good. Force multipliers for the win. We need more power, what about a hardened burst disc. Or the worlds largest air gun. I thought Hannah was more dressed up than norm, with the ear rings and war paint on. Have a good one guys 👍
Bob didnt even flinch. Top bloke. Just shows how marginal these things are between 'seems perfectly ok' to 'deathly'. Higher tensile steel so the fracture is at a higher level and more explosive when it goes...
You could use 10.9 Bolts they can take more tension but stretch less, I once tightened an M14 10.9 to breaking point (big effin pneumatic wrench). It went off like a bullet. You can also get 12.9 and 14.9
Did you add an explosion sound effect to the first plug shot? The brass plugs should be much more exciting. Maybe add food coloring to the water to try and reduce the light reflected and we might get a better view of the plug? You guys rock at any rate! 🇺🇲💪👍
How about putting a Pack of spring washers pushing the seal. It won't be perfectly tight perhaps, but when it goes, the springs will also push the plug. Edit: disc springs is the correct english for what I meant.
I went to the site to enter the space. The space looks like Google Map Street View going mad. They need to scan the room better. Im getting dizzy exploring the rooms.
I think you knew it could store energy, but not *where* - i bet the mechanism has enough tiny flex in the various parts to hold a lot. A few molecules here and there, a little stretch there... ❤ Love you guys, stay relatively safe.❤
one thing that may help convincing plugs to fail in more explosive matter would be to use twin o-ring seals at the interface of plug and sacrificial cylinder
Could you try it again, but maybe with some teflon pipe tape or similar type of thread sealant to try to build enough pressure to burst the larger plug out?
maybe if you put an o ring groove into it so the seal is always present, but the threads are the only thing holding the whole plug in the cylinder. zero leakage until the threads are fully gone
The problem here is the threads are not a seal against the pressure. The plug needs to have threads on cap end with a smooth bore + o-ring seal on the cylinder side. The plug holder and plug would be more complicated to machine but then there is no need for tightening or a washer, the water pressure will all be pushing on the threads until they give way.
2:22 "If it's Like something Like totally Like...Like reasonable Like 500 Bars." Lauri is hypnotizing his viewers to Like/Thumbs up the HPC videos. That or like he's totally like trying to like sound like a teenaged girl... like...
I wonder if you could get a better/more reliable launch if instead of threaded bolts, you use pressurefit/interferencefit bolts... A tighter fit would mean more power needed to make it pop, and vice versa.
If you could compress water into ice that would be a magical video. I believe it’s possible and I’m sure you know you can get that information from a water phase chart. It would be a first for RU-vid.
Man that blue press is scary, I've been using presses for 17 years, all hand powered, one was 60t with hand power, except a little electric 8t. But the big blue one must be a 350t or 400t, propper crushing power.
Maybe see if you can put the seal on the inside lf the screw instead of the outside? Also maybe if you cut off the treads from the other side it woild have less opportunities to strech before it breaks.
The way to fix this stretching problem is to take threads off of the other end so you don't have that entire plug stretching and yielding before the threads can let go. Basically just cut the plug shorter.
I was going to say. Bullet Velocity. Very dangerous speed. 308 Muzzle Velocity is around 3000 Feet Per Second. If it could maintain that for two seconds, the bullet would travel over a mile. (5280 ft.)
