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Temperatures. You would have to get the titanium *very* hot for it to ignite, even with pure 02. When they investment cast the stuff, its all done in a inert atmosphere. When its welded, it is usually tented, or, you have several "nozzles" applying inert gas to any area likely to get hot enough to ignite. I have TIG welded bicycle tubing with nozzles filling the inside of the structure with inert gas (argon), two in the welding area, in addition to the nozzle supplied gas. Scott ----- Original Message ----- From: "Ben Martinez" <bmc00@tc*.ne*> To: "Techdiver@Aquanaut. Com" <techdiver@aquanaut.com> Sent: Monday, May 08, 2000 8:37 PM Subject: Re: Atomic Regulators (Was Mares ruby titanium reg) > Maybe someone with a proper background could comment on this subject but > titanium is a reducing agent a.k.a. a fuel in the combustion process. This does > not sound like a good idea for a techdiver's regulator. I'd assume this isn't a > problem for air dives since they are making regs out of titanium but you know > what they say when you assume. I'd think this could lead to serious problems > for an oxygen bottle or a nitrox mix with a high FO2. > > Maybe a materials guy could comment on this. I know special procedures are > followed for the welding of titanium because of this, but would the high > pressures in the first stage present the same problems at higher FO2's? > > Ben Martinez -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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