Today we came to our laboratory again
Remember our last plan
Is it self-assembled vacuum machine?
The intention of the vacuum machine
Is to help degas the silicone mold
There is no bubble in our silicone mold
However, I was a little dissatisfied that this was changed with a pressure cooker.
So we cannot see the internal situation
We can’t see those cool reactions when we experiment
So I went to the supermarket to choose a few glass cookie jars
Curious to try to see if they can also be used as material
This project was inspired by my cousin’s mono loco workshop
He used a glass jar as a vacuum machine in his channel
In the following commentary, I have attached a link. You can go and see
When we use a vacuum machine, the most fear is the occurrence of implosion (inward explosion)
It will cause glass fragments to shoot in every corner and even hurt the horrors you would never want to see.
So we must test this before we officially use them
Make sure they can withstand the pressure of vacuum
Remember when I made a silicone ring in my vacuum cooker plan?
I also made the same design for my glass vacuum tank
The small one I used blue and can be disassembled
Then the big one I used red
Because they are elastic rubber,
Provides excellent airtightness when placed on an acrylic cover
So I think they should work perfectly and I can’t wait to test it
Because my cousin had a size of about this, I started testing it from it.
I will vacuum him and let him sit under vacuum pressure for 10 minutes
I will set up the camera while he is vacuuming and stay away from it
So if it’s really imploding at least we won’t be affected
I also put a flat plastic water bottle inside to make the experiment more interesting
So when we vacuum, we can see the response of the plastic water bottle
Fix the water bottle to the bottom with a little clay
Good fit!
Close the intake valve…
Open row (extract) valve…
Pre-job completed!
I’ve been pumping for 5 minutes now and I haven’t seen anything wrong with it.
This is a good sign
And even more handsome is that the flattened water bottle has now expanded.
At the same time, you can notice that the pressure gauge shows that this is almost the strongest vacuum.
This is very inspiring for me to turn off the vacuum motor
And close both the exhaust valve and the intake valve
The sauce is a vacuum can
Bottles that remain inflated can testify
What happens when I open the air intake valve to allow air to enter?
Let us witness it together
Just in case, I first wear my safety mask
To come and go… Three, two, one…
Awesome!
So as I expected, there is no problem with small glass jars
But this one really makes me feel uneasy
We will take a lot of air out of big glass jars
Adjust, close the intake valve, open the row (exhaust) valve
Wear safety gear, and then quickly slip away ~
Come on!
It takes a little time to pump light
Nonsense because it’s big (ah)
It seems that the bottle has been completely inflated. The pressure gauge also came to 25…
And the glass jar looks… nothing is surprising
I’m still a little worried so let’s wait a few more minutes
See if it can survive, no problem…
Look, everyone is actually quite successful.
The vacuum glass jar is in stable condition, which makes me very excited because now we have large vacuum glass jars that can be used.
We will have a glimpse of what we can do in future experiments.
How much pressure will the problem come to the explosion?
Silly? I didn’t plan to make sauce
But if you guys want to know maybe I can shoot you with a high speed camera
At present, it does not implode does not mean that there is no possibility of this
If there are any small cracks or weaknesses on the glass
Maybe as long as a slight touch will cause implosion
Well, let me wear my safety mask and let the air back
Like it! Come and see
Now… The lid is up
What do you think would happen if I put a bottle of unflattened water in?
Is there a way to make it explode?
Wow! You see! The water is boiling?
Wow!
Um, I think this is understandable
Because we have reduced the atmospheric pressure in the tank
The boiling point of water is also reduced
Let us look at the valve
That’s wonderful
This condition must be the same as when we vacuum the bottle of air
To make this jar explode, the pressure must be about 65 pounds per square inch.
Well, let me help him pressurize it to about 50 pounds
When we vacuum the sauce, the difference in pressure should allow the plastic bottle to burst
Ok, purple bottles have been pressurized to 55 pounds
Now if we vacuum it
Should cause enough pressure to let the plastic bottle come to the small explosion show
Things should not be late (⊜‿⊜✴)
Explosion, explosion, explosion…
It’s too stressful.
Hmmm… maybe it just doesn’t want to show us
Cool!
It finally gave it success!
Well, we’ve finally exploded the plastic bottle. I just started to be successful.
I actually tried about six times before bursting
damn it!
…but not in the glass jar
So the critical point is really like a straitjacket
But anyway we succeeded
What’s more important is that even if the bottle bursts, the glass jar is intact!
This gives me a lot of relief because it means that even if there is a slight impact, the glass jar is OK
This is a good phenomenon
Look inside the bottle completely…
destroyed
I think it is a combination of the pressure inside the bottle and the vacuum tension of the glass jar
The situation is only one death under the wall
To tell you the truth, if you have a big power, you can see the moment the desk is shaken.
The sound wave is too strong and it will be hit on the ground
So it looks like our vacuum glass jar passed the test
Now you guys know what the result is
It is feasible to use a glass cookie jar as a vacuum machine
This is awesome because now we can have a vacuum machine that is transparent and can see the reaction inside.
At the same time, we also made a small explosion show to demonstrate
Hey, thank you for spending a lot of time with me and today’s experiment
Welcome to the next episode
See you then
damn it!
Thick ~ Really… Have you
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