Re: [EVGRAY] Dotto Ring

Body

Warren,

What is the procedure then in order to anneal copper in the way Norm
mentions in order that it become within one percent of a perfect conductor?

Would this be simply to bring it within so many degrees of incandescence
for so long and slowly cool it?

My only experience is oil quenching steel to harden it in a machine shop
I worked at.


On 3/23/2018 7:46 PM, Warren Keillor [email protected]
[EVGRAY] wrote:
>  
> Mick
> Heat treating metals is a whole branch of metalurgy science.
> Copper work hardens. Heat softens it and wuenching does very little
> except cool it so you don't burn your fingers.
> Cheers Warren
> Sent from Yahoo Mail on Android
> <https://overview.mail.yahoo.com/mobile/?.src=Android>mick
>
>     On Fri, Mar 23, 2018 at 8:25 PM, Mick [email protected] [EVGRAY]
>     <[email protected]> wrote:
>      
>
>     Darrell,
>
>     Isn't quenching for hardening or is it also used in anealing?
>
>
>     On 3/23/2018 1:28 PM, [email protected]
>     <mailto:[email protected]> [EVGRAY] wrote:
>>      
>>
>>     Hi Norman my friend, It's been my experience in the past when I
>>     was into heat treating metals, that you really don't need to go
>>     cherry red, just heat it up ( propane torch) until it turns a
>>     nice solid gray color. Then quench it, No need to cool it slowly
>>     either. Worked for me.
>>
>
>