In a message dated 8/15/05 5:35:48 PM, [EMAIL PROTECTED] writes:
My horn came back from a repairman who has assembled it badly (the whole
valve section was too high ) and than reassembled it again(this time the
valve section is too low , and it seems like the instrument is stretched)
.My question is:if I would take my horn to someone (better , I hope
)wouldn't the heat created by the soldering action damage the metal? can an
instrument be assembled and than reassembled ?
Simply assembling and re-assembling by virtue of soldering should not harm
your horn, IF DONE PROPERLY.It doesn't sound as if this repair person knows
exactly what he/she is doing.Harm can be done by, among other things, poor
solder joints, excess metal removal on repeating the process, lack of
neutralizing the acid flux, and finally, too much heating thereby annealing the
metal. But the heating is the least of your worries, really.And, why was
such
a drastic repair made in the first place? This isn't something you do to an
undamaged horn. Take your horn to a horn specialist, or at least a
top-flight brass tech. If you want recommendations, you should ask this list
or go
to www.napbirt.org. I think, however, asking this list is your best bet.
Dave Weiner
Brass Arts Unlimited
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