Sir Geoff,
Actually I do not use a fan initially when firing the boiler. The
natural convection through the vertical flue is sufficient to raise
steam, although a fan would no doubt speed up the process.
I did find that I needed to shorten the stack above the boiler, however,
to get
If you're referring to submitting an article to SitG, Ron recently told
me he prefers good quality prints (glossy, 4 x 6 or larger) and digital
pix, at least 3 megapixel (at maximum resolution--roughly 1500 x 1200).
His slide scanner went the way of the dodo, so he's not too hip on
slides at
Hi all
I am making a cab for locomotive, in the process of silver soldering the
cab the metal ( brass and copper ) have lost there hardness . I am looking
for information on how to re harden the metal . Thanks
Paul Gamlin
At 09:02 AM 4/22/04 -0700, you wrote:
I am making a cab for locomotive, in the process of silver soldering the
cab the metal ( brass and copper ) have lost there hardness . I am looking
for information on how to re harden the metal . Thanks
Paul Gamlin
Paul,
Sorry . . . but brass and
Brass and copper must be work hardened. Working can be bending, hammering,
rolling, etc. -- anything that mechanically moves the metal. Just the microscopic
movement of a boiler inflating during the first steaming will harden the copper back
to
a safe state.
In your case, it's going to be
I am curious as to just how soft you brass sheet has become? Just
because the cab metal is softened, doesn't mean it won't be able to
withstand the handling which our models receive.
I've seen some very nice models that use quite thin sections of brass on
the superstructure, and that was more of a
