A slight OT query....

How are pressure cylinders such as SCUBA tanks and "K Bottles"
manufactured? Some are aluminum, others steel. I'd assumed they're cast
in one piece, but I don't know for sure, and someone asked me..


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"David Lesher" wrote in message
...

A slight OT query....

How are pressure cylinders such as SCUBA tanks and "K Bottles"
manufactured? Some are aluminum, others steel. I'd assumed they're cast
in one piece, but I don't know for sure, and someone asked me..



There was just a thread on that.
http://www.youtube.com:80/watch?v=qA...eature=related

In article ,
David Lesher wrote:

A slight OT query....

How are pressure cylinders such as SCUBA tanks and "K Bottles"
manufactured? Some are aluminum, others steel. I'd assumed they're cast
in one piece, but I don't know for sure, and someone asked me..

Search around in YouTube a little... I just saw some videos of SCUBA and
other tanks being fabricated a couple of weeks ago.

Erik

"Tom Gardner" writes:


"David Lesher" wrote in message
...

A slight OT query....

How are pressure cylinders such as SCUBA tanks and "K Bottles"
manufactured? Some are aluminum, others steel. I'd assumed they're cast
in one piece, but I don't know for sure, and someone asked me..



There was just a thread on that.
http://www.youtube.com:80/watch?v=qA...eature=related


Thanks. "SCUBA" was the noun to use....

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A host is a host from coast to
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

On Sun, 21 Sep 2008 00:28:07 +0000 (UTC), David Lesher
wrote:


A slight OT query....

How are pressure cylinders such as SCUBA tanks and "K Bottles"
manufactured? Some are aluminum, others steel. I'd assumed they're cast
in one piece, but I don't know for sure, and someone asked me..


Nope, one piece extrusions, or spun pipe. Google on "Worthington"

On 2008-09-21, David Lesher wrote:
"Tom Gardner" writes:


"David Lesher" wrote in message
...

A slight OT query....

How are pressure cylinders such as SCUBA tanks and "K Bottles"
manufactured? Some are aluminum, others steel. I'd assumed they're cast
in one piece, but I don't know for sure, and someone asked me..



There was just a thread on that.
http://www.youtube.com:80/watch?v=qA...eature=related

What a great video. I wish thyat I could see that operation in person.

i


Thanks. "SCUBA" was the noun to use....


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On Sep 21, 1:15 am, Ignoramus7553
wrote:
On 2008-09-21, David Lesher wrote:



"Tom Gardner" writes:

"David Lesher" wrote in message
...

A slight OT query....

How are pressure cylinders such as SCUBA tanks and "K Bottles"
manufactured? Some are aluminum, others steel. I'd assumed they're cast
in one piece, but I don't know for sure, and someone asked me..

There was just a thread on that.
http://www.youtube.com:80/watch?v=qA...eature=related

What a great video. I wish thyat I could see that operation in person.

i



Thanks. "SCUBA" was the noun to use....

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Due to extreme spam originating from Google Groups, and their inattention
to spammers, I and many others block all articles originating
from Google Groups. If you want your postings to be seen by
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posting on Usenet.
http://improve-usenet.org/


It is a fascinating process. The aluminum tank being extruded from a
thick blank... This process is called backward extrusion because the
metal is forced to flow backwards over the mandrel (or punch).

Tooth paste tubes of old were made in this fashion; it is pretty old
technology.

The steel tank manufacturing is also a sight to behold. In this case
the tank is drawn from a round disk of steel which I would guess is
about 3/8" thick. Also a marvellous process.

Wolfgang