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I thought quenching made the metal less soft.
Annealing requires slow cooling.=20
Peace,
Pat
Pat Horne=20
We support Habitat for Humanity
On Aug 8, 2020, at 9:18 AM, Bob Spidell <bspidell@comcast.net> wrote:
=EF=BB=BF Question for the List: Is it proper to quench--in water, presumabl=
y, or oil maybe--copper to achieve softness after it's been heated 'cherry r=
ed?'
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 v=
ery even heat, the right temperature, should not hurt the oven.=20
>=20
> Maybe just wait to do it while the wife is away for an hour or so... :-)
>=20
> best,
>=20
> doug
>=20
> On Sat, Aug 8, 2020 at 5:37 AM Pat Horne <patintexas@icloud.com> wrote:
>> Pay a local shop with an oxy/acetylene rig to heat them? Muffler shop, bo=
dy shop, A/C contractor? A/C contractor sometimes use air/acetylene. Will th=
at get hot enough?
>>=20
>> Peace,
>> Pat
>>=20
>> Pat Horne=20
>> We support Habitat for Humanity
>>=20
>>=20
>> On Aug 7, 2020, at 11:25 PM, Jack Brooks <JIBrooks@live.com> wrote:
>>=20
>> =EF=BB=BF
>> I have fabricated a number of 1/8 and 3/16th inch thick busbars for an Va=
n RV build electrical system which I am assembling in my shop. The busbars a=
re already bent to shape, but I=E2=80=99d like to anneal them, because the c=
opper was purchased in the =E2=80=9CHalf-Hard=E2=80=9D state and making the=
m =E2=80=9CDead-Soft=E2=80=9D will insure that they lay completely flat to m=
aximize the conductivity when I final assemble the system.
>>=20
>> =20
>>=20
>> I usually anneal copper by getting it hot enough to glow with a propane t=
orch 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/A=
cetylene torch would work, but I don=E2=80=99t have one. MAPP gas is hotter=
, but I don=E2=80=99t think it=E2=80=99s a lot hotter.
>>=20
>> =20
>>=20
>> I am considering running them through the cleaning cycle in the self-clea=
ning over, as a self-cleaning oven will typically runs up to around 900=C2=B0=
F. Copper needs 700-1,200=C2=B0F to anneal, so it should be fine.
>>=20
>> =20
>>=20
>> 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 (cyl=
inders) of my =E2=80=9974 Norton motorcycle. Mrs. Jack was not happy. Copp=
er bars should be fine as they won=E2=80=99t stink up the house.
>>=20
>> =20
>>=20
>> Thanks in advance,
>>=20
>> =20
>>=20
>> Jack
>>=20
>>=20
_______________________________________________
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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">I thought quenching made the metal less sof=
t.<div><br></div><div>Annealing requires slow cooling. <br><div><br></d=
iv><div>Peace,</div><div>Pat<br><br><div dir=3D"ltr">Pat Horne <div>We s=
upport Habitat for Humanity</div><div><br></div></div><div dir=3D"ltr"><br>O=
n Aug 8, 2020, at 9:18 AM, Bob Spidell <bspidell@comcast.net> wrote:<b=
r><br></div><div dir=3D"ltr">=EF=BB=BF
=20
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DUTF-8"=
>
=20
=20
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=3D"moz-cite-prefix">On 8/8/2020 6:43 AM, old dirtbeard
wrote:<br>
</div>
<blockquote type=3D"cite" cite=3D"mid:CAG1pxgakax3smook6vRShkTGWrxuqMqcW=
Fuw+Rog5cwypjpT4A@mail.gmail.com">
<meta http-equiv=3D"content-type" content=3D"text/html; charset=3DUTF-=
8">
<div dir=3D"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=3D"gmail_quote">
<div dir=3D"ltr" class=3D"gmail_attr">On Sat, Aug 8, 2020 at 5:37 AM=
Pat Horne <<a href=3D"mailto:patintexas@icloud.com"; moz-do-not-=
send=3D"true">patintexas@icloud.com</a>> 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 that get hot
enough?
<div><br>
</div>
<div>Peace,</div>
<div>Pat<br>
<br>
<div dir=3D"ltr">Pat Horne
<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 <<a href=3D"mail=
to:JIBrooks@live.com" target=3D"_blank" moz-do-not-send=3D"true">JIBrooks@li=
ve.com</a>>
wrote:<br>
<br>
</div>
<div dir=3D"ltr">=EF=BB=BF
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-=
family:"Times 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
assembling in my shop. The busbars are already
bent to shape, but I=E2=80=99d like to anneal them,
because the copper was purchased in the
=E2=80=9CHalf-Hard=E2=80=9D state and making the=
m =E2=80=9CDead-Soft=E2=80=9D
will insure that they lay completely flat to
maximize the conductivity when I final assemble
the system.
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-=
family:"Times New
Roman",serif"> </span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-=
family:"Times New
Roman",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 thes=
e
busbars, I can=E2=80=99t get them up to a temperature t=
o
where they glow with propane. An Oxy/Acetylene
torch would work, but I don=E2=80=99t have one. M=
APP gas
is hotter, but I don=E2=80=99t think it=E2=80=99s a lo=
t hotter.
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-=
family:"Times New
Roman",serif"> </span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-=
family:"Times New
Roman",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=C2=B0F. Copper needs 700-1,200=C2=
=B0F to
anneal, so it should be fine.</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-=
family:"Times New
Roman",serif"> </span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-=
family:"Times New
Roman",serif">I=E2=80=99d prefer almost any other=
solution. Thoughts? The last time I used o=
ur
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. Coppe=
r bars
should be fine as they won=E2=80=99t stink up the hous=
e.
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-=
family:"Times New
Roman",serif"> </span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-=
family:"Times New
Roman",serif">Thanks in advance,</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-=
family:"Times New
Roman",serif"> </span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12pt;font-=
family:"Times New
Roman",serif">Jack</span></p>
</div>
<span></span><br>
</div>
</div>
</div>
</blockquote>
</div>
</blockquote>
<br>
=20
<span>_______________________________________________</span><br><span></span=
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