📥 AUTOCLAVE only $6
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- เผยแพร่เมื่อ 17 ก.ย. 2024
- Attention!
Experimenting with high pressure can be life-threatening!
You repeat these experiments at your own risk.
The author is not responsible for any damage you might sustain while repeating these experiments.
Hello dear subscribers and guests of the channel!
I want to share with you the budget design of the autoclave, which cost me only $ 6 and which I successfully use to polymerize self-hardening plastics.
I made several purchases for making an autoclave.
On Aliexpress for $ 1 ordered a manometer.
At the flea market for $ 2. bought an old pump.
In the same place for $ 3, I bought this pressure cooker.
Attention!
Do not use a pressure cooker with this design.
High pressure can rip the cover off of this pressure cooker.
And at this pressure cooker from pressure in 3-4 atmospheres the bottom will simply swell up a little.
As you can see, the lid closes from the inside, so the higher the pressure, the tighter the sealing of the lid will be.
To connect these three products together and eliminate leakage through a pump check valve, I manufactured an air tee. I am very proud of the design of this tee.
This universal tee can be easily adapted to any task by simply installing the cap with another set of fittings.
Tee successfully passed the test under pressure of 8 atmospheres.
To attach the pump, I used a “Presta” nipple.
These nipples are convenient because they can be unlocked and locked without additional tools.
In the manometer, I made an M3 thread for the fitting, in order to preserve the external thread for fixing the device itself.
This is how it works.
We pour more water in order to maintain the desired polymerization temperature longer, and to pump less air.
For the polymerization of dental plastic, I use a temperature of 45 ° C.
The pressure at the same time, I usually choose about 3 atmospheres.
Polymerization time takes 30 minutes or more.
This casting was done without the use of an autoclave. And this casting was made in an autoclave with the above parameters.
See you on the channel!
Creative success to you!
You got a bargain on the pressure cooker. Excellent work
Awesome video thanks
Hello, can this autoclave be used at a temperature of 250 degrees Celsius?
I also need to make an autoclave for my university project.
Of course, the autoclave environment should be at 250 degrees Celsius for 3 hours.
Do you have any comments or suggestions?
От Канады с любовью и уважением! Машины для изготовления деталей являются творческими и являются примером энтузиазма самого блестящего типа человека, я покорна вашей инженерии. Я надеюсь, что перевод прошел должным образом, потому что я хотел показать вам уважение к доступу к вашему языку, хотя я говорю на английском языке. Наилучшие пожелания.
Thank you so much for your kind appreciation of my humble work! It is a pity that TH-cam has slipped into TikTok (Shorts). And in this format it is difficult to show anything useful.
I wonder how many people will try this and blow themselves up
This is just the way of nature lolz Darwin awards for everyone!
Well if my project don’t turn out , we can always make some good borsh :)
Hell yea
How do I operate this DIY Autoclave to sterilize a liquid?
In order to sterilize, nothing needs to be redone. With increasing pressure, the boiling point increases.
sterilize a bottle and it's cap (not sealed) in the autoclave. Add or mix in your liquid, such as liquid media, sterilize the bottle with the cap just started (1/2 turn, if its sealed the pressure inside the bottle can cause it to explode), if there is no cap, place aluminum foil over the top. It helps to pre-warm the liquid to about 60°C before starting. It should be sterilized for about 30-45 minutes at 115°C or 20-30 minutes at 121°C. When done, seal lid or foil top, using oven mits remove the bottle and place on countertop to cool. If you need to use the media before it comes to room temperature (such as pouring plates), monitor it's cooling and use when appropriate.
It also helps if you have a container for the media, a box to sit it in, that way any spilling or boil over is caught instead of dirtying the autoclave. Any #5 plastic should do the job, polypropylene. It's often the hard black plastic used in takeout boxes, the same kind that is microwave safe.