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View Full Version : How Tanks are made...YouTube videos



WaScubaDude
11-01-2007, 02:01
very cool, I had no idea steel tanks are made with thin rounds!

Steel tank vid
YouTube - how to make a steel scuba tank (http://www.youtube.com/watch?v=36MGPDjJWRE&NR=1)

Aluminum tank vid
YouTube - making a scuba tank (http://www.youtube.com/watch?v=qAgSU6BCpsY)

RoadRacer1978
11-01-2007, 09:38
That was really cool. Thanks for sharing. I found the AL tank vid very informative and learned quite a bit about the manufacturing and testing of the tanks. Thanks for sharing these videos. I don't think I would have ever thought about searching youtube for something like this.

loudgonzo
11-01-2007, 11:21
that was cool:smiley20:

BobbyWombat
11-01-2007, 12:59
Amazing to see. Seeing that aluminum tank extruded in the press was really interesting.

Clanggedin
11-01-2007, 13:16
I had no idea that was how tanks are made. Thanks for the links. I really liked the process they use to make AL80s.

WaScubaDude
11-05-2007, 00:03
I had no idea that was how tanks are made. Thanks for the links. I really liked the process they use to make AL80s.

Wild that the aluminum "squirts" out like that! Looking at the two mnfg methods makes me wonder if that has anything to do with steel tanks being rated at lower PSI?? Does anyone know?

terrillja
11-05-2007, 00:10
I had no idea that was how tanks are made. Thanks for the links. I really liked the process they use to make AL80s.

Wild that the aluminum "squirts" out like that! Looking at the two mnfg methods makes me wonder if that has anything to do with steel tanks being rated at lower PSI?? Does anyone know?

Steel tanks at lower pressure? There are some LP steel tanks that are made, but most people I know use HP steel tanks, which are rated at 3442 PSI.

tarheeldiver
11-05-2007, 18:06
cool video!

Silverlode
11-05-2007, 18:53
Wow! Thanks. Cool Videos.

kyfriedchipper
11-07-2007, 00:50
liked the aluminum tank video

indatexas
11-12-2007, 21:15
Sweet vid

Sansho
11-12-2007, 22:46
Very nice ... al vid was the more interesting of the two. Thanks for posting them.

kenmendes
11-13-2007, 10:21
Those videos were very interesting. Thanks for sharing

navyhmc
11-18-2007, 23:02
I guess that explains the age old question of why LA tanks have flat bottom and Steel have rounded. Thanks for the links.

mcc2318
11-20-2007, 15:00
cool video

WV Diver
11-20-2007, 15:14
Neat stuff. I had never seen those videos before.

WaScubaDude
12-20-2007, 17:13
Anyone seen any new tank videos?

VeniceDiver
12-21-2007, 18:29
That was awesome:smiley20: I would of never guess.

skippy11
12-24-2007, 03:38
Very Neat to see! Thanks for sharing!

kancho
12-24-2007, 09:56
That was very informative.. I also watched the homemade gear vid.. YouTube - Homemade Scuba Gear (http://www.youtube.com/watch?v=FnD3RyC7Zj8&NR=1) I am curious to to what type of canister that was to put the air

WD8CDH
12-24-2007, 10:49
I guess that explains the age old question of why LA tanks have flat bottom and Steel have rounded. Thanks for the links.

It's not really a limit of the material or process. Aluminum tanks can also be extruded with a round bottom and steel tanks can be stamped with a flatter (or even concave) bottom. You just can't get quite as tight of radius on the edge of a steel tank.

teog
12-25-2007, 09:35
Thats very cool.

wheelman
12-25-2007, 09:42
I guess that explains the age old question of why LA tanks have flat bottom and Steel have rounded. Thanks for the links.

It's not really a limit of the material or process. Aluminum tanks can also be extruded with a round bottom and steel tanks can be stamped with a flatter (or even concave) bottom. You just can't get quite as tight of radius on the edge of a steel tank.

I would have thought the shape had to do with the strength of the design? Round is stronger and flat less at a given thickness.

WD8CDH
12-26-2007, 16:49
I guess that explains the age old question of why LA tanks have flat bottom and Steel have rounded. Thanks for the links.

It's not really a limit of the material or process. Aluminum tanks can also be extruded with a round bottom and steel tanks can be stamped with a flatter (or even concave) bottom. You just can't get quite as tight of radius on the edge of a steel tank.

I would have thought the shape had to do with the strength of the design? Round is stronger and flat less at a given thickness.


Yes, the shape determines the strength too. On an aluminum tank, the inside is semi-rounded for strength. It is easier to form Aluminum tanks with a flat outside bottom and curved inside bottom than it would be to do the same on a Steel tank. It is fairly easy to form a steel tank with a flat bottom but since the inside would be flat too, the tank pressure rating would be quite limited by the flat bottom. Some steel tanks are formed with a concave bottom to regain most of the strength of a rounded bottom but still be able to be stood upright.

aggie99
01-02-2008, 01:38
Watching these makes me wonder why steel tanks cost so much more? It can't be material cost and the production system for both seems pretty automated.