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Joe,<br>
<br>
If you decide to go ahead with the annealing, I would strongly
recommend removing the screws first. Steel and brass react very
differently to heat treating. Whatever works for brass will do
something different, and probably unwanted, to the steel screws.
Sorry I don't have enough knowledge/experience to predict exactly
what.. hence my caution.<br>
<br>
Mike <br>
<br>
On 7/26/2011 9:00 AM, Joseph Garrett wrote:
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type="cite">
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<div><font face="MS Sans Serif" size="2">Tom,</font></div>
<div><font face="MS Sans Serif" size="2">I guess that was part
of my question, as well.<G> I'd like to retain the
flanges, if possible, but there are issues. Still waiting
for some of those eye opening answers.<G></font></div>
<div><font face="MS Sans Serif" size="2">Joe</font></div>
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<blockquote style="border-left: 2px solid rgb(0, 0, 0);
padding-left: 5px; padding-right: 0px; margin-left: 5px;">
<div style="font: 10pt Arial;">----- Original Message ----- </div>
<div style="font: 10pt arial; background: none repeat scroll 0%
0% rgb(228, 228, 228);"><b>From:</b> <a
moz-do-not-send="true" title="tomtuner@verizon.net"
href="mailto:tomtuner@verizon.net">Tom Driscoll</a> </div>
<div style="font: 10pt arial;"><b>To: </b><a
moz-do-not-send="true" title="joegarrett@earthlink.net"
href="mailto:joegarrett@earthlink.net">joegarrett@earthlink.net</a></div>
<div style="font: 10pt arial;"><b>Sent:</b> 7/26/2011 6:16:10 AM
</div>
<div style="font: 10pt arial;"><b>Subject:</b> Re: [pianotech]
Chickering Grand Hammer Flanges?</div>
<div><br>
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<div style="font-family: Arial; color: rgb(0, 0, 0);
font-size: 12px;">
<div>Joe,<br>
I don't know the answer, but I do have a related
question about frozen drop screws on these flanges. I've
had numerous experiences where they just break off .<br>
So my somewhat related query is will heat break them
loose ?<br>
Awaiting our crews response to both questions,<br>
Best,<br>
Tom Driscoll <br>
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<div> </div>
<span style="font-family: arial; color: rgb(0, 0, 0);
font-size: 12px;">On 07/26/11, <span>Joseph
Garrett<a class="moz-txt-link-rfc2396E" href="mailto:joegarrett@earthlink.net"><joegarrett@earthlink.net></a></span> wrote:</span>
<div style="font-family: arial; color: rgb(0, 0, 0);
font-size: 12px;">Anyone have an idea the difference of
expansion rates of Steel and Brass.<br>
I'm into a Chickering Grand and am planning on trying to
anneal them<br>
puppies. Reason for asking is wether to remove the screws
and drop screws<br>
or leave them in during the annealing process. Any one
have some thoughts?<br>
Regards,<br>
Joe<br>
<br>
<br>
Joe Garrett, R.P.T.<br>
Captain of the Tool Police<br>
Squares R I<br>
<br>
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