[Shop-talk] Annealing Copper bars

[Pat Horne]

Most self cleaning ovens have a lock that keeps them from opening at higher temperatures. 

Peace,
Pat

Pat Horne 
We support Habitat for Humanity


On Aug 8, 2020, at 10:58 AM, John Innis <jdinnis at gmail.com> wrote:


The oven would work fine, you just need to add a quench as soon as possible when you come out.  

> On Sat, Aug 8, 2020 at 10:43 AM Pat Horne <patintexas at icloud.com> wrote:
> So, referring back to the OP about using the oven to anneal the bars, it WOULDN’T be a good choice. 
> 
> Peace,
> Pat
> 
> Pat Horne 
> We support Habitat for Humanity
> 
> 
> On Aug 8, 2020, at 10:03 AM, John Innis <jdinnis at gmail.com> wrote:
> 
> 
> 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 at 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’re right & I’m wrong! Wouldn’t be the first time.
>> >
>> > Peace,
>> > Pat
>> >
>> > Pat Horne
>> > We support Habitat for Humanity
>> >
>> >
>> > On Aug 8, 2020, at 9:33 AM, Bob Spidell <bspidell at comcast.net> wrote:
>> >
>> > Well snap. I've been doing it wrong all these years I've reused 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 at comcast.net> wrote:
>> >>
>> >>  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
>> >>
>> 
>> _______________________________________________
>> 
>> Shop-talk at autox.team.net
>> Donate: http://www.team.net/donate.html
>> Suggested annual donation  $12.96
>> Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net/archive
>> 
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/shop-talk/jdinnis@gmail.com
>> 
> 
> 
> -- 
> =================================
> = Never offend people with style when you   =
> = can offend with substance --- Sam Brown  =
> =================================
> _______________________________________________
> 
> Shop-talk at autox.team.net
> Donate: http://www.team.net/donate.html
> Suggested annual donation  $12.96
> Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net/archive
> 
> Unsubscribe/Manage: http://autox.team.net/mailman/options/shop-talk/patintexas@icloud.com
> 


-- 
=================================
= Never offend people with style when you   =
= can offend with substance --- Sam Brown  =
=================================
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/shop-talk/attachments/20200808/60b8e396/attachment.htm>