[modeleng] Re: TIG welded copper boilers

Hi there Craig,

That's quite interesting what you say about not needing to be a coded 
welder to produce a welded steel or copper loco boiler.

I guess the advice would be to show the boiler inspectors a sample of your 
welding before you invest in building the whole boiler though?

Yours,


Rich.

On Sat, 25 Oct 2008, Craig Gluyas wrote:

> Hi All
>
> The guidelines for Tig welded copper boilers are already in the boiler
> testing guide for the southern fed. It is simply treated as a silver
> soldered boiler. The only difference being the need for either a coded
> welder with documentation, OR for a test piece to be available for
> examination to prove the welders competence (which is exactly the same as
> for steel boilers) I.e. you do not have to be a coded welder to manufacture
> one, just a competent welder.
>
> Tig welding is a very accurate and precise form of welding, well suited to
> this kind of work. The only limitation I can see is getting the torch into
> some of the tighter areas! It does save heating the whole boiler up for
> silver soldering and then also the pickling process.
>
> As a club boiler inspector with experience in designing and manufacturing
> pressure vessels in both steel and stainless steel (usually TIG welded
> construction) I'm very glad to see the technology being utilized and
> accepted in the hobby.
>
> Regards
>
> Craig
>
> -----Original Message-----
> From: modeleng-bounce@xxxxxxxxxxxxx [mailto:modeleng-bounce@xxxxxxxxxxxxx]
> On Behalf Of R.L. Roebuck
> Sent: 24 October 2008 23:37
> To: modeleng@xxxxxxxxxxxxx
> Subject: [modeleng] Re: TIG welded copper boilers
>
> Hi there Alan,
>
> I'd be curious to know what the Southern (or Northern) Federations view
> point is - will they issue boiler certificates for them, and will the
> testing still be one hydraulic test every four years?
>
>
> Yours,
>
>
> Rich.
>
>
> On Fri, 24 Oct 2008, Alan Stepney wrote:
>
>> I see that Maxitrak have started selling TIG welded copper boilers.
>>
>> Anyone have any thoughts on that, instead of the usual silver soldering?
>>
>>
>> Alan
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