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Re: [Shop-talk] Annealing Copper bars

To: Bob Spidell <bspidell@comcast.net>
Subject: Re: [Shop-talk] Annealing Copper bars
From: John Innis <jdinnis@gmail.com>
Date: Sat, 8 Aug 2020 10:02:29 -0500
Cc: shop-talk <Shop-talk@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: Shop-talk@autox.team.net
References: <86451f12-f5ca-d505-4aac-6f2e6e56e531@comcast.net> <E4FA0B28-0EC4-4090-AED0-E7E1A3ABCB09@icloud.com> <570f2fb9-1760-125b-ccde-63416f62894d@comcast.net>
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This matches my understanding as well.  Brass and copper soften when
quenched.  Steel and Aluminum harden when quenched.

On Sat, Aug 8, 2020 at 9:59 AM Bob Spidell <bspidell@comcast.net> wrote:

> Could be (the plot thickens):
>
> "Annealing copper makes it softer and less brittle, which allows you to
> bend it without breaking it. This malleability allows you to hammer and
> mold the copper into any shape you wish without cracking the metal. You
> can anneal any grade and thickness of copper as long as you have a flame
> that can transmit enough heat to the metal. The most straightforward way
> to anneal copper is by heating it with an oxygen acetylene torch and
> rapidly cooling it in water."
>
> https://www.wikihow.com/Anneal-Copper
>
>
>
> On 8/8/2020 7:43 AM, Pat Horne wrote:
> > Maybe you=E2=80=99re right & I=E2=80=99m wrong! Wouldn=E2=80=99t be the=
 first time.
> >
> > Peace,
> > Pat
> >
> > Pat Horne
> > We support Habitat for Humanity
> >
> >
> > On Aug 8, 2020, at 9:33 AM, Bob Spidell <bspidell@comcast.net> wrote:
> >
> > =EF=BB=BFWell snap. I've been doing it wrong all these years I've reuse=
d copper,
> mostly on sealing washers for oil pan plugs.
> >
> > Thanks for the reply.
> > Bob
> >
> >
> >> On 8/8/2020 7:21 AM, Pat Horne wrote:
> >> I thought quenching made the metal less soft.
> >>
> >> Annealing requires slow cooling.
> >>
> >> Peace,
> >> Pat
> >>
> >> Pat Horne
> >> 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, pre=
sumably,
> or oil maybe--copper to achieve softness after it's been heated 'cherry
> red?'
> >>
> >> Bob
> >>
>
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>
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>

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=3D Never offend people with style when you   =3D
=3D can offend with substance --- Sam Brown  =3D
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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<div dir=3D"ltr">This matches my understanding as well.=C2=A0 Brass and cop=
per soften when quenched.=C2=A0 Steel and Aluminum harden when quenched.<br=
></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr"=
>On Sat, Aug 8, 2020 at 9:59 AM Bob Spidell &lt;<a href=3D"mailto:bspidell@=
comcast.net">bspidell@comcast.net</a>&gt; wrote:<br></div><blockquote class=
=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rg=
b(204,204,204);padding-left:1ex">Could be (the plot thickens):<br>
<br>
&quot;Annealing copper makes it softer and less brittle, which allows you t=
o <br>
bend it without breaking it. This malleability allows you to hammer and <br=
>
mold the copper into any shape you wish without cracking the metal. You <br=
>
can anneal any grade and thickness of copper as long as you have a flame <b=
r>
that can transmit enough heat to the metal. The most straightforward way <b=
r>
to anneal copper is by heating it with an oxygen acetylene torch and <br>
rapidly cooling it in water.&quot;<br>
<br>
<a href=3D"https://www.wikihow.com/Anneal-Copper"; rel=3D"noreferrer" target=
=3D"_blank">https://www.wikihow.com/Anneal-Copper</a><br>
<br>
<br>
<br>
On 8/8/2020 7:43 AM, Pat Horne wrote:<br>
&gt; Maybe you=E2=80=99re right &amp; I=E2=80=99m wrong! Wouldn=E2=80=99t b=
e the first time.<br>
&gt;<br>
&gt; Peace,<br>
&gt; Pat<br>
&gt;<br>
&gt; Pat Horne<br>
&gt; We support Habitat for Humanity<br>
&gt;<br>
&gt;<br>
&gt; On Aug 8, 2020, at 9:33 AM, Bob Spidell &lt;<a href=3D"mailto:bspidell=
@comcast.net" target=3D"_blank">bspidell@comcast.net</a>&gt; wrote:<br>
&gt;<br>
&gt; =EF=BB=BFWell snap. I&#39;ve been doing it wrong all these years I&#39=
;ve reused copper, mostly on sealing washers for oil pan plugs.<br>
&gt;<br>
&gt; Thanks for the reply.<br>
&gt; Bob<br>
&gt;<br>
&gt;<br>
&gt;&gt; On 8/8/2020 7:21 AM, Pat Horne wrote:<br>
&gt;&gt; I thought quenching made the metal less soft.<br>
&gt;&gt;<br>
&gt;&gt; Annealing requires slow cooling.<br>
&gt;&gt;<br>
&gt;&gt; Peace,<br>
&gt;&gt; Pat<br>
&gt;&gt;<br>
&gt;&gt; Pat Horne<br>
&gt;&gt; We support Habitat for Humanity<br>
&gt;&gt;<br>
&gt;&gt;<br>
&gt;&gt; On Aug 8, 2020, at 9:18 AM, Bob Spidell &lt;<a href=3D"mailto:bspi=
dell@comcast.net" target=3D"_blank">bspidell@comcast.net</a>&gt; wrote:<br>
&gt;&gt;<br>
&gt;&gt; =EF=BB=BF Question for the List: Is it proper to quench--in water,=
 presumably, or oil maybe--copper to achieve softness after it&#39;s been h=
eated &#39;cherry red?&#39;<br>
&gt;&gt;<br>
&gt;&gt; Bob<br>
&gt;&gt;<br>
<br>
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</blockquote></div><br clear=3D"all"><br>-- <br><div dir=3D"ltr" class=3D"g=
mail_signature">=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br>=3D Never offend people with =
style when you=C2=A0=C2=A0 =3D<br>=3D can offend with substance --- Sam Bro=
wn=C2=A0 =3D<br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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