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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 <JIBrooks@live.com> 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
_______________________________________________
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Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net/archi=
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<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 <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 <JIBrooks@live.com> wrote:<br><br></div><div d=
ir=3D"ltr">=EF=BB=BF
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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:"Tim=
es New Roman",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. The busbars are already
bent to shape, but I=E2=80=99d like to anneal them, because the copper was p=
urchased 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 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:"Tim=
es New Roman",serif"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:"Tim=
es New Roman",serif">I usually anneal copper by getting it hot enough t=
o glow with a propane torch and then allow it to cool. With the mass o=
f 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, b=
ut I don=E2=80=99t have one. 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:"Tim=
es New Roman",serif"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:"Tim=
es New Roman",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. 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:"Tim=
es New Roman",serif"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:"Tim=
es New Roman",serif">I=E2=80=99d prefer almost any other solution. =
; Thoughts? 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=
.
Mrs. Jack was not happy. 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:"Tim=
es New Roman",serif"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:"Tim=
es New Roman",serif">Thanks in advance,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:"Tim=
es New Roman",serif"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:"Tim=
es New Roman",serif">Jack<o:p></o:p></span></p>
</div>
<span>_______________________________________________</span><br><span></span=
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_______________________________________________
Shop-talk@autox.team.net
Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net/archive
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