[TheForge] Metallurgy and Powder Coating

[Ron Childers]

Actually there does not appear to be any restriction on paint schemes,
but Steve ran the shop and they were his tanks so I would think he knew
the process used to pretty them up- Who would have thought a heat lamp
could generate enough heat to affect a metal that much. 

An excellent diver doesn't necessarily know about thermal changes
affecting molecular structure of aluminum any more or probably less than
a blacksmith knows about heat treating; I had to show an otherwise very
good blacksmith what happens to car spring steel if it is heated to red
and suddenly quenched. (it won't work for a hydraulic lift fork)  

Steve is the guy who got a call from a girl who had taken a diving
course from him at FSU. A diver was lost in a cave in Venezuela.
Steve caught a flight out of Florida, went to the underwater cave,
suited up, went in and found the diver alive and well in an air pocket. 

Steve had strung a safety line and brought extra air so there was no
problem getting to the surface. The lost diver said he didn't know
angels spoke English. ><)))*> Ron C



-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of Jerry Frost
Sent: Tuesday, May 31, 2011 7:36 PM
To: Blacksmithing List Sponsored by ABANA
Subject: Re: [TheForge] Metallurgy and Powder Coating

I'm surprised any certified dive shop would attempt to fill powder
coated 
tanks, al or fe. Heck, I probably wouldn't use a shop that careless. As
I 
recall it's illegal to fill a dive tank that's been modified in any 
non-approved way without doing a hydrostatic test. Anything folding
pressure 
above a specific level I don't recall MUST be tested and certified
regularly 
and follow some VERY rigid regulations.

Jer
----- Original Message ----- 
From: "Andrew Vida" <osan at netlabs.net>
To: "Blacksmithing List Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Tuesday, May 31, 2011 1:59 PM
Subject: Re: [TheForge] Metallurgy and Powder Coating


> You NEVER ever powder coat aluminum SCUBA tanks for those precise
> reasons.  I have heard several third-hand accounts of this happening.
> Ignorance can be very dangerous.
>

______________________________________________________________