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harry harry is offline
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Default Welding cast iron

On Jul 14, 11:39*pm, Gib Bogle wrote:
On 7/15/2011 7:29 AM, Thomas Prufer wrote:





On Thu, 14 Jul 2011 09:56:01 -0700 (PDT), *wrote:


If this joint were to fail there could be very severe consequenses.
Under no circumstanses should you try to repair this.


I fully agree. You should get some mechanic from a museum or something who has
*experience* repairing these ancient things. You know, someone who has actually
spent *time* fixing these things. Or a fully qualified stem engine mechanic!*


Cast iron has been outlawed for seventy or eighty years for steam
vessels. *You need to forget all about this project or someone could
get killed.


All steam vessels by law have to be insured and inspected annually.
There's absolutely no way you could achieve this, it would fail any
inspection.


You'd be much better off scrapping the boiler and replacing it with something
entirely new. And instead of a firebox, maybe an electric heater? These are much
safer. Or a modern condensing boiler, which is also more efficient! Yes!


You must be new here. *Matty IS someone working in a museum, who repairs
ancient things, and the boiler he's talking about is undoubtedly a
restoration job. *I suspect that replacing the boiler with a modern
version would defeat the whole purpose of the enterprise. *Nevertheless
your point about the advisability of attempting a repair may well be
correct.- Hide quoted text -

- Show quoted text -


Well I think Matty needs to get someone in. Even to suggest such a
thing is extremely foolish.

I have seen the aftermath of a steam flange failure, fortunately I was
not present.
Every window in the place was blown out and the boiler firer was badly
injured but fortunate to survive being burned and afterwards
suffocation..
It was an oil fired boiler, if it had been coal he would have surely
died.

A flange on a CAST IRON valve broke off. Afterwards we found the
casting was faulty in that the pipe bore was eccentric to the exterior
of the casting.
This was a quite new valve too never mind some corroded old rubbish.

Steam locomotive boilers are particularly prone to all sorts of
corrosion and fatigue isses due to using fresh water and poor water
treatment.
Riveted boilers are even worse.

A steam explosion inside a locomtive fire box would be virtually
guaranteed to kill the fireman/driver as all the burning coal could
well be blown out of the firing hole into the locomotive cab.