[Dixielandjazz] Re: Cryogenic treatment for brass

Mike C. mike at michaelcryer.com
Sun Sep 25 12:52:08 PDT 2005

Is that why over time a brass instrument plays sweeter? I have a 1956 
Conn 6H trombone that plays just wonderfully.


Robert Smith wrote:
> As a metallurgist I regard cryogenic treatment as highly unlikely to relieve any residual stress in any metals or alloys. Sress-relieving ('tempering') is done by increasing the temperature. Room temperature also relieves residual stresses, but usually takes a long time (depending on the metal or alloy). Lead for example tempers rapidly at room temperature, whereas brass takes several decades before the effect is noticeable.
> It would be impracticable to stress-relieve musical instruments because the temperature involved would damage non-metallic parts including the lacquer.
> Cheers
> Bob Smith
> _______________________________________________
> Dixielandjazz mailing list
> Dixielandjazz at ml.islandnet.com
> http://ml.islandnet.com/mailman/listinfo/dixielandjazz

"80 percent of Republicans are just Democrats who don't know what's
going on. The only difference is there is a huge informational deficit
in the red states."

-Robert F. Kennedy Jr (1954- )

More information about the Dixielandjazz mailing list