annealing brass in the oven

[Tim Coates]

What type of piano are you doing this type of treatment to?  Uprights, grands?  Is
it worth it?  Around here uprights are a dime a dozen and hardly worth going to
this much work.

Tim Coates
University of South Dakota
University of Sioux Falls

Daniel Gurnee wrote:

> on 11/25/01 9:00 PM, Daniel Gurnee at dgurnee@humboldt1.com wrote:
>
> CAUT
>
> Addendum to my last: Annealing brass, two sources.
>
> ŒANNEALING PROCEDURE1
> ŒHeat to dull red color, let cool to a grey color, immediately quench in
> water or picking solution.2
> 3The Jeweler1s Bench Reference2 by Harold O1Connor,  Pub. Dunconor book, 4th
> printing 1982
>
> ANNEALING:
> 3This can be done with a kiln or torch. Colors are best seen in a dimly-lit
> area. Handy flux may be painted onto metal to serve as a temperature
> indicator: it is clear at 1100° F.  . .   Œ
> 3The Complete Metalsmith2, Tim McCreight, Pub. Davis Publications, Mass.,
> 1982.
>
> Dan Gurnee, RPT, Ret. HSU.
>
> > Greetings CAUT,
> >
> > Learning from the HSU Art Dept. and Hobart Brown renowned for initiating the
> > Kinetic Sculptor Race at Ferndale CA, to totally aneal work hardened copper
> > and brass, heat to glowing red and quench in cold water.
> >
> > Dan Gurnee RPT, Retired from HSU
> >
> >
> >
> > on 11/25/01 5:45 PM, Bdshull@aol.com at Bdshull@aol.com wrote:
> >
> >> Hi, Mark,
> >>
> >> A few months ago I decided to try the oven.  I put the rails and good butt
> >> plates in the oven for an hour at full blast ("broil"), turned the oven off
> >> and left in overnight to cool (slow cooling...).  The butt plates were very
> >> bendable, unlike before - I could not break them.  I have done it on two
> >> action rails with the same results.  I am not sure of the exact temperature,
> >> but I believe the temperature needs to exceed 650 degrees.
> >>
> >> Of course it is more scientific to use the crayons. The heat-sensitive
> >> crayons are a precise indicator of the temperature.  But I am pleased with
> >> the results of my oven.  Don't know how many times it can manage full heat
> >> for an hour, but it seemed to do OK.
> >>
> >>
> >> Bill Shull, RPT
> >> La Sierra University, CSUSB
> >>
> >> In a message dated 11/25/01 1:00:47 PM Pacific Standard Time,
> >> cramer@BrandonU.CA writes:
> >>
> >> << I recall a discussion about annealing brass-flange rails in the oven.
> >> Someone may have even taught a class on this subject.
> >>
> >> Can someone please help me out with the particulars?
> >>
> >> thanks,
> >>
> >> Mark Cramer, >>
> >>
> >
> >