Brass Action Rails

[Farrell]

That's the way I am leaning for all the reasons you list. But that was part of my original question: Is there any higher quality brass rail re-producer than Schaff? They are the only ones I am aware of that provide this service. Thanks.

Terry Farrell
  
----- Original Message ----- 
From: "Ron Nossaman" <RNossaman@cox.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Sunday, January 05, 2003 10:42 AM
Subject: Re: Brass Action Rails


> 
> >Perhaps the heavy use kept the metal malleable?
> >
> >Terry Farrell
>  
> And what about the next one that was also heavily used and cracked up 
> badly? No, I don't think so. Also, all of these speculations about how use 
> affects work hardening and how that causes the cracking don't fit field 
> observations. We don't know the composition or condition of the brass when 
> the rail was originally installed. Was it annealed? Was it already work 
> hardened? Was it already cracked? What was milled and drilled, and what was 
> stamped? Will annealing a rail that's not yet cracked keep it from 
> cracking? Not knowing what was there originally, it just isn't possible, 
> much less reasonable, to speculate on whether or not heavy use (or lack 
> thereof), or whether it was annealed before installation had anything at 
> all to do with what cracked and what didn't. There's just no information to 
> work with.
> 
> Those rails might very well last another 80 years with no problem. Or they 
> might not. This is no different than deciding whether to replace that 
> pinblock,or go with oversized pins - or lower the plate to get string 
> bearing without worrying too much about soundboard crown, or keep the old 
> wippens because they don't look that bad, or any other of the hundreds of 
> decisions we make about what is likely to be adequate and what possibly may 
> not be. Given the option, I'd prefer to replace the rails.
> 
> Ron N
> 
> _______________________________________________
> pianotech list info: https://www.moypiano.com/resources/#archives