Subject: Re: [Shop-talk] Annealing Copper bars

From: Pat Horne <[email-masked]>
Date: Sat, 8 Aug 2020 07:36:56 -0500

--===============9017353208325697146==
Content-Transfer-Encoding: 7bit

--Apple-Mail-5FB300D6-7921-49B0-BE1A-C6054ECB732B
	charset=utf-8
Content-Transfer-Encoding: quoted-printable

Pay a local shop with an oxy/acetylene rig to heat them? Muffler shop, body s=
hop, A/C contractor? A/C contractor sometimes use air/acetylene. Will that g=
et hot enough?

Peace,
Pat

Pat Horne=20
We support Habitat for Humanity

On Aug 7, 2020, at 11:25 PM, Jack Brooks <[email-masked]> wrote:

=EF=BB=BF
I have fabricated a number of 1/8 and 3/16th inch thick busbars for an Van R=
V build electrical system which I am assembling in my shop.  The busbars are=
 already bent to shape, but I=E2=80=99d like to anneal them, because the cop=
per was purchased in the  =E2=80=9CHalf-Hard=E2=80=9D state and making them =E2=
=80=9CDead-Soft=E2=80=9D will insure that they lay completely flat to maximi=
ze the conductivity when I final assemble the system.
=20
I usually anneal copper by getting it hot enough to glow with a propane torc=
h and then allow it to cool.  With the mass of these busbars, I can=E2=80=99=
t get them up to a temperature to where they glow with propane.  An Oxy/Acet=
ylene torch would work, but I don=E2=80=99t have one.  MAPP gas is hotter, b=
ut I don=E2=80=99t think it=E2=80=99s a lot hotter.
=20
I am considering running them through the cleaning cycle in the self-cleanin=
g over, as a self-cleaning oven will typically runs up to around 900=C2=B0F.=
  Copper needs 700-1,200=C2=B0F to anneal, so it should be fine.
=20
I=E2=80=99d prefer almost any other solution.  Thoughts?  The last time I us=
ed our oven for a shop project, it was to cure the paint on the jugs (cylind=
ers) of my =E2=80=9974 Norton motorcycle.  Mrs. Jack was not happy.  Copper b=
ars should be fine as they won=E2=80=99t stink up the house.
=20
Thanks in advance,
=20
Jack
_______________________________________________

[email-masked]
Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net/archi=
ve

[email-masked]

--Apple-Mail-5FB300D6-7921-49B0-BE1A-C6054ECB732B
	charset=utf-8
Content-Transfer-Encoding: quoted-printable

<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">Pay a local shop with an oxy/acetylene rig t=
o heat them? Muffler shop, body shop, A/C contractor? A/C contractor sometim=
es use air/acetylene. Will that get hot enough?<div><br></div><div>Peace,</d=
iv><div>Pat<br><br><div dir=3D"ltr">Pat Horne&nbsp;<div>We support Habitat f=
or Humanity</div><div><br></div></div><div dir=3D"ltr"><br>On Aug 7, 2020, a=
t 11:25 PM, Jack Brooks &lt;[email-masked]&gt; wrote:<br><br></div><div d=
ir=3D"ltr">=EF=BB=BF

<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-1=
">
<meta name=3D"Generator" content=3D"Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
	{font-family:"Cambria Math";
	panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
	{font-family:Calibri;
	panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
	{margin:0in;
	margin-bottom:.0001pt;
	font-size:11.0pt;
	font-family:"Calibri",sans-serif;}
span.EmailStyle17
	{mso-style-type:personal-compose;
	font-family:"Times New Roman",serif;
	color:windowtext;}
.MsoChpDefault
	{mso-style-type:export-only;
	font-family:"Calibri",sans-serif;}
@page WordSection1
	{size:8.5in 11.0in;
	margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
	{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]-->

<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Tim=
es New Roman&quot;,serif">I have fabricated a number of 1/8 and 3/16<sup>th<=
/sup> inch thick busbars for an Van RV build electrical system which I am as=
sembling in my shop.&nbsp; The busbars are already
 bent to shape, but I=E2=80=99d like to anneal them, because the copper was p=
urchased in the &nbsp;=E2=80=9CHalf-Hard=E2=80=9D state and making them =E2=80=
=9CDead-Soft=E2=80=9D will insure that they lay completely flat to maximize t=
he conductivity when I final assemble the system.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Tim=
es New Roman&quot;,serif">I usually anneal copper by getting it hot enough t=
o glow with a propane torch and then allow it to cool.&nbsp; With the mass o=
f these busbars, I can=E2=80=99t get them up to a temperature
 to where they glow with propane.&nbsp; An Oxy/Acetylene torch would work, b=
ut I don=E2=80=99t have one.&nbsp; MAPP gas is hotter, but I don=E2=80=99t t=
hink it=E2=80=99s a lot hotter.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Tim=
es New Roman&quot;,serif">I am considering running them through the cleaning=
 cycle in the self-cleaning over, as a self-cleaning oven will typically run=
s up to around 900=C2=B0F.&nbsp; Copper needs 700-1,200=C2=B0F
 to anneal, so it should be fine.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Tim=
es New Roman&quot;,serif">I=E2=80=99d prefer almost any other solution.&nbsp=
; Thoughts?&nbsp; The last time I used our oven for a shop project, it was t=
o cure the paint on the jugs (cylinders) of my =E2=80=9974 Norton motorcycle=
.&nbsp;
 Mrs. Jack was not happy.&nbsp; Copper bars should be fine as they won=E2=80=
=99t stink up the house.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Tim=
es New Roman&quot;,serif">Thanks in advance,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Tim=
es New Roman&quot;,serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Tim=
es New Roman&quot;,serif">Jack<o:p></o:p></span></p>
</div>

<span>_______________________________________________</span><br><span></span=
><br><span>[email-masked]</span><br><span>Donate: http://www.team.=
net/donate.html</span><br><span>Suggested annual donation &nbsp;$12.96</span=
><br><span>Archive: http://www.team.net/pipermail/shop-talk http://autox.tea=
m.net/archive</span><br><span></span><br><span>Unsubscribe/Manage: http://au=
tox.team.net/mailman/options/shop-talk/[email-masked]</span><br><span=
></span><br></div></div></body></html>=

--Apple-Mail-5FB300D6-7921-49B0-BE1A-C6054ECB732B--

--===============9017353208325697146==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________

[email-masked]
Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net/archive

--===============9017353208325697146==--

---

From: old dirtbeard <[email-masked]>
Date: Sat, 8 Aug 2020 06:43:19 -0700

--===============1953698335079655587==

--000000000000249e4605ac5dec3c
Content-Transfer-Encoding: quoted-printable

I sort of like your idea about the self-cleaning oven cycle. It would be
very even heat, the right temperature, should not hurt the oven.

Maybe just wait to do it while the wife is away for an hour or so...  :-)

best,

doug

On Sat, Aug 8, 2020 at 5:37 AM Pat Horne <[email-masked]> wrote:

> Pay a local shop with an oxy/acetylene rig to heat them? Muffler shop,
> body shop, A/C contractor? A/C contractor sometimes use air/acetylene. Wi=
ll
> that get hot enough?
> Pat Horne
> I have fabricated a number of 1/8 and 3/16th inch thick busbars for an
> Van RV build electrical system which I am assembling in my shop.  The
> busbars are already bent to shape, but I=E2=80=99d like to anneal them, b=
ecause the
> copper was purchased in the  =E2=80=9CHalf-Hard=E2=80=9D state and making=
 them =E2=80=9CDead-Soft=E2=80=9D
> will insure that they lay completely flat to maximize the conductivity wh=
en
> I final assemble the system.
>
>
>
> I usually anneal copper by getting it hot enough to glow with a propane
> torch and then allow it to cool.  With the mass of these busbars, I can=
=E2=80=99t
> get them up to a temperature to where they glow with propane.  An
> Oxy/Acetylene torch would work, but I don=E2=80=99t have one.  MAPP gas i=
s hotter,
> but I don=E2=80=99t think it=E2=80=99s a lot hotter.
>
>
>
> I am considering running them through the cleaning cycle in the
> self-cleaning over, as a self-cleaning oven will typically runs up to
> around 900=C2=B0F.  Copper needs 700-1,200=C2=B0F to anneal, so it should=
 be fine.
>
>
>
> I=E2=80=99d prefer almost any other solution.  Thoughts?  The last time I=
 used our
> oven for a shop project, it was to cure the paint on the jugs (cylinders)
> of my =E2=80=9974 Norton motorcycle.  Mrs. Jack was not happy.  Copper ba=
rs should
> be fine as they won=E2=80=99t stink up the house.
>
>
>
> Thanks in advance,
>
>
>
> Jack
> Donate: http://www.team.net/donate.html
> Suggested annual donation  $12.96
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/shop-talk/[email-masked]
>
> Donate: http://www.team.net/donate.html
> Suggested annual donation  $12.96
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/shop-talk/[email-masked]
>
>

--000000000000249e4605ac5dec3c
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">I sort of like your idea about the self-cleaning oven cycl=
e. It would be very even heat, the right temperature, should not hurt the o=
ven.=C2=A0<div><br></div><div>Maybe just wait to do it while the wife is aw=
ay for an hour or so...=C2=A0 :-)</div><div><br></div><div>best,</div><div>=
<br></div><div>doug</div></div><br><div class=3D"gmail_quote"><div dir=3D"l=
tr" class=3D"gmail_attr">On Sat, Aug 8, 2020 at 5:37 AM Pat Horne &lt;<a hr=
ef=3D"mailto:[email-masked]">[email-masked]</a>&gt; wrote:<br=
></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;=
border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"auto">=
Pay a local shop with an oxy/acetylene rig to heat them? Muffler shop, body=
 shop, A/C contractor? A/C contractor sometimes use air/acetylene. Will tha=
t get hot enough?<div><br></div><div>Peace,</div><div>Pat<br><br><div dir=
=3D"ltr">Pat Horne=C2=A0<div>We support Habitat for Humanity</div><div><br>=
</div></div><div dir=3D"ltr"><br>On Aug 7, 2020, at 11:25 PM, Jack Brooks &=
lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">[email-masked]=
</a>&gt; wrote:<br><br></div><div dir=3D"ltr">=EF=BB=BF

<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif">I have fabricated a number of 1/8 and 3/16<sup>th<=
/sup> inch thick busbars for an Van RV build electrical system which I am a=
ssembling in my shop.=C2=A0 The busbars are already
 bent to shape, but I=E2=80=99d like to anneal them, because the copper was=
 purchased in the =C2=A0=E2=80=9CHalf-Hard=E2=80=9D state and making them =
=E2=80=9CDead-Soft=E2=80=9D will insure that they lay completely flat to ma=
ximize the conductivity when I final assemble the system.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif">I usually anneal copper by getting it hot enough t=
o glow with a propane torch and then allow it to cool.=C2=A0 With the mass =
of these busbars, I can=E2=80=99t get them up to a temperature
 to where they glow with propane.=C2=A0 An Oxy/Acetylene torch would work, =
but I don=E2=80=99t have one.=C2=A0 MAPP gas is hotter, but I don=E2=80=99t=
 think it=E2=80=99s a lot hotter.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif">I am considering running them through the cleaning=
 cycle in the self-cleaning over, as a self-cleaning oven will typically ru=
ns up to around 900=C2=B0F.=C2=A0 Copper needs 700-1,200=C2=B0F
 to anneal, so it should be fine.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif">I=E2=80=99d prefer almost any other solution.=C2=
=A0 Thoughts?=C2=A0 The last time I used our oven for a shop project, it wa=
s to cure the paint on the jugs (cylinders) of my =E2=80=9974 Norton motorc=
ycle.=C2=A0
 Mrs. Jack was not happy.=C2=A0 Copper bars should be fine as they won=E2=
=80=99t stink up the house.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif">Thanks in advance,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:&quot;Time=
s New Roman&quot;,serif">Jack<u></u><u></u></span></p>
</div>

<span>_______________________________________________</span><br><span></spa=
n><br><span><a href=3D"mailto:[email-masked]" target=3D"_blank">S=
[email-masked]</a></span><br><span>Donate: <a href=3D"http://www.t=
eam.net/donate.html" target=3D"_blank">http://www.team.net/donate.html</a><=
/span><br><span>Suggested annual donation =C2=A0$12.96</span><br><span>Arch=
ive: <a href=3D"http://www.team.net/pipermail/shop-talk" target=3D"_blank">=
http://www.team.net/pipermail/shop-talk</a> <a href=3D"http://autox.team.ne=
t/archive" target=3D"_blank">http://autox.team.net/archive</a></span><br><s=
pan></span><br><span>Unsubscribe/Manage: <a href=3D"http://autox.team.net/m=
ailman/options/shop-talk/[email-masked]" target=3D"_blank">http://au=
tox.team.net/mailman/options/shop-talk/[email-masked]</a></span><br>=
<span></span><br></div></div></div>________________________________________=
_______<br>
<br>
<a href=3D"mailto:[email-masked]" target=3D"_blank">Shop-talk@aut=
ox.team.net</a><br>
et=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/pipermail/shop-talk" rel=3D"norefer=
rer" target=3D"_blank">http://www.team.net/pipermail/shop-talk</a> <a href=
=3D"http://autox.team.net/archive" rel=3D"noreferrer" target=3D"_blank">htt=
p://autox.team.net/archive</a><br>
<br>
alk/[email-masked]" rel=3D"noreferrer" target=3D"_blank">http://autox.=
team.net/mailman/options/shop-talk/[email-masked]</a><br>
<br>
</blockquote></div>

--000000000000249e4605ac5dec3c--

--===============1953698335079655587==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

[email-masked]

--===============1953698335079655587==--

---

From: Bob Spidell <[email-masked]>
Date: Sat, 8 Aug 2020 07:18:02 -0700

This is a multi-part message in MIME format.
--===============9046349946576492281==
 boundary="------------19852CD81802AC76975E0C94"
Content-Language: en-US

This is a multi-part message in MIME format.
--------------19852CD81802AC76975E0C94
Content-Transfer-Encoding: 8bit

Question for the List: Is it proper to quench--in water, presumably, or 
oil maybe--copper to achieve softness after it's been heated 'cherry red?'

Bob

On 8/8/2020 6:43 AM, old dirtbeard wrote:
> I sort of like your idea about the self-cleaning oven cycle. It would 
> be very even heat, the right temperature, should not hurt the oven.
>
> On Sat, Aug 8, 2020 at 5:37 AM Pat Horne <[email-masked] 
>
>     Pay a local shop with an oxy/acetylene rig to heat them? Muffler
>     shop, body shop, A/C contractor? A/C contractor sometimes use
>     air/acetylene. Will that get hot enough?
>
>     Peace,
>     Pat
>
>     Pat Horne
>     On Aug 7, 2020, at 11:25 PM, Jack Brooks <[email-masked]
>
>     
>
>     I have fabricated a number of 1/8 and 3/16^th inch thick busbars
>     for an Van RV build electrical system which I am assembling in my
>     shop.  The busbars are already bent to shape, but I’d like to
>     anneal them, because the copper was purchased in the  “Half-Hard”
>     state and making them “Dead-Soft” will insure that they lay
>     completely flat to maximize the conductivity when I final assemble
>     the system.
>
>     I usually anneal copper by getting it hot enough to glow with a
>     propane torch and then allow it to cool.  With the mass of these
>     busbars, I can’t get them up to a temperature to where they glow
>     with propane.  An Oxy/Acetylene torch would work, but I don’t have
>     one.  MAPP gas is hotter, but I don’t think it’s a lot hotter.
>
>     self-cleaning over, as a self-cleaning oven will typically runs up
>     to around 900°F.  Copper needs 700-1,200°F to anneal, so it should
>     be fine.
>
>     I’d prefer almost any other solution.  Thoughts?  The last time I
>     used our oven for a shop project, it was to cure the paint on the
>     jugs (cylinders) of my ’74 Norton motorcycle.  Mrs. Jack was not
>     happy.  Copper bars should be fine as they won’t stink up the house.
>
>     Thanks in advance,
>
>     Jack
>
>

--------------19852CD81802AC76975E0C94
Content-Transfer-Encoding: 8bit

<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  </head>
  <body>
    Question for the List: Is it proper to quench--in water, presumably,
    or oil maybe--copper to achieve softness after it's been heated
    'cherry red?'<br>
    <br>
    Bob<br>
    <br>
    <div class="moz-cite-prefix">On 8/8/2020 6:43 AM, old dirtbeard
      wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:[email-masked]">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      <div dir="ltr">I sort of like your idea about the self-cleaning
        oven cycle. It would be very even heat, the right temperature,
        should not hurt the oven. 
        <div><br>
        </div>
        <div>Maybe just wait to do it while the wife is away for an hour
          or so...  :-)</div>
        <div><br>
        </div>
        <div>best,</div>
        <div><br>
        </div>
        <div>doug</div>
      </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr" class="gmail_attr">On Sat, Aug 8, 2020 at 5:37 AM
          Pat Horne &lt;<a href="mailto:[email-masked]"
            moz-do-not-send="true">[email-masked]</a>&gt; wrote:<br>
        </div>
        <blockquote class="gmail_quote" style="margin:0px 0px 0px
          0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
          <div dir="auto">Pay a local shop with an oxy/acetylene rig to
            heat them? Muffler shop, body shop, A/C contractor? A/C
            contractor sometimes use air/acetylene. Will that get hot
            enough?
            <div><br>
            </div>
            <div>Peace,</div>
            <div>Pat<br>
              <br>
              <div dir="ltr">Pat Horne 
                <div>We support Habitat for Humanity</div>
                <div><br>
                </div>
              </div>
              <div dir="ltr"><br>
                On Aug 7, 2020, at 11:25 PM, Jack Brooks &lt;<a
                  href="mailto:[email-masked]" target="_blank"
                  moz-do-not-send="true">[email-masked]</a>&gt;
                wrote:<br>
                <br>
              </div>
              <div dir="ltr">
                <div>
                  <p class="MsoNormal"><span
                      style="font-size:12pt;font-family:&quot;Times New
                      Roman&quot;,serif">I have fabricated a number of
                      1/8 and 3/16<sup>th</sup> inch thick busbars for
                      an Van RV build electrical system which I am
                      assembling in my shop.  The busbars are already
                      bent to shape, but I’d like to anneal them,
                      because the copper was purchased in the
                       “Half-Hard” state and making them “Dead-Soft”
                      will insure that they lay completely flat to
                      maximize the conductivity when I final assemble
                      the system.
                    </span></p>
                  <p class="MsoNormal"><span
                      style="font-size:12pt;font-family:&quot;Times New
                      Roman&quot;,serif"> </span></p>
                  <p class="MsoNormal"><span
                      style="font-size:12pt;font-family:&quot;Times New
                      Roman&quot;,serif">I usually anneal copper by
                      getting it hot enough to glow with a propane torch
                      and then allow it to cool.  With the mass of these
                      busbars, I can’t get them up to a temperature to
                      where they glow with propane.  An Oxy/Acetylene
                      torch would work, but I don’t have one.  MAPP gas
                      is hotter, but I don’t think it’s a lot hotter.
                    </span></p>
                  <p class="MsoNormal"><span
                      style="font-size:12pt;font-family:&quot;Times New
                      Roman&quot;,serif"> </span></p>
                  <p class="MsoNormal"><span
                      style="font-size:12pt;font-family:&quot;Times New
                      Roman&quot;,serif">I am considering running them
                      through the cleaning cycle in the self-cleaning
                      over, as a self-cleaning oven will typically runs
                      up to around 900°F.  Copper needs 700-1,200°F to
                      anneal, so it should be fine.</span></p>
                  <p class="MsoNormal"><span
                      style="font-size:12pt;font-family:&quot;Times New
                      Roman&quot;,serif"> </span></p>
                  <p class="MsoNormal"><span
                      style="font-size:12pt;font-family:&quot;Times New
                      Roman&quot;,serif">I’d prefer almost any other
                      solution.  Thoughts?  The last time I used our
                      oven for a shop project, it was to cure the paint
                      on the jugs (cylinders) of my ’74 Norton
                      motorcycle.  Mrs. Jack was not happy.  Copper bars
                      should be fine as they won’t stink up the house.
                    </span></p>
                  <p class="MsoNormal"><span
                      style="font-size:12pt;font-family:&quot;Times New
                      Roman&quot;,serif"> </span></p>
                  <p class="MsoNormal"><span
                      style="font-size:12pt;font-family:&quot;Times New
                      Roman&quot;,serif">Thanks in advance,</span></p>
                  <p class="MsoNormal"><span
                      style="font-size:12pt;font-family:&quot;Times New
                      Roman&quot;,serif"> </span></p>
                  <p class="MsoNormal"><span
                      style="font-size:12pt;font-family:&quot;Times New
                      Roman&quot;,serif">Jack</span></p>
                </div>
                <span></span><br>
              </div>
            </div>
          </div>
        </blockquote>
      </div>
    </blockquote>
    <br>
  </body>
</html>

--------------19852CD81802AC76975E0C94--

--===============9046349946576492281==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

[email-masked]

--===============9046349946576492281==--

---

From: Jack Brooks <[email-masked]>
Date: Sat, 8 Aug 2020 16:14:47 +0000

--===============3920900520271030369==
Content-Language: en-US
	boundary="_000_MWHPR06MB315161EB8C45745AB0BCCA03A8460MWHPR06MB3151namp_"

--_000_MWHPR06MB315161EB8C45745AB0BCCA03A8460MWHPR06MB3151namp_
Content-Transfer-Encoding: base64

--_000_MWHPR06MB315161EB8C45745AB0BCCA03A8460MWHPR06MB3151namp_
Content-Transfer-Encoding: base64

--_000_MWHPR06MB315161EB8C45745AB0BCCA03A8460MWHPR06MB3151namp_--

--===============3920900520271030369==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

[email-masked]

--===============3920900520271030369==--