Re: reuse of Crushable washers/annealing same

Donald Wilkinson · Post by **Donald Wilkinson** » Fri Feb 18, 2005 7:33 pm

Joe sez:

>Roger you can use them again but the trick is to hang them on a

wire and heat them cherry red with the propane torch and them quench in a bucket of water, they will be soft again. Though there is sort of a limit to how many times you can get away with this. Joe Curto

Chip Old · Post by **Chip Old** » Sat Feb 19, 2005 5:00 am

On Sat, 19 Feb 2005 03:32 -0000, Donald Wilkinson wrote to joecurto@aol.com...:

> digitaldon was scratchin' his head over that one also, but was VERY > reluctant to 2nd guess Chip Old on this one. Anyway, his best > recollection was that one hardened or annealed non-ferrous metals (Cu, > Al, brass, etc.) opposite to ferrous as Joe sez above.

As others have pointed out, when annealing copper it doesn't matter whether you quench or not. The result is the same. I don't bother. Maybe Joe is in more of a hurry to cool down those hot washers. -- Chip Old 1948 M.G. TC TC6710 XPAG7430 NEMGTR #2271 Cub Hill, Maryland fold@bcpl.net

1939mgtb · Post by **1939mgtb** » Sat Feb 19, 2005 8:38 am

Chilling them knocks the oxidation scab off the washer. Then you use 1500 grit on a piece of glass to make them smooth. Best, Ray "My brain hurts!" "It will have to come out."

----- Original Message ----- From: "Chip Old" fold@bcpl.net> To: "MG-TABC" mg-tabc@yahoogroups.com> Sent: Saturday, February 19, 2005 7:00 AM Subject: Re: [mg-tabc] reuse of Crushable washers/annealing same > > On Sat, 19 Feb 2005 03:32 -0000, Donald Wilkinson wrote to > joecurto@aol.com...: > >> digitaldon was scratchin' his head over that one also, but was VERY >> reluctant to 2nd guess Chip Old on this one. Anyway, his best >> recollection was that one hardened or annealed non-ferrous metals (Cu, >> Al, brass, etc.) opposite to ferrous as Joe sez above. > > As others have pointed out, when annealing copper it doesn't matter > whether you quench or not. The result is the same. I don't bother. > Maybe Joe is in more of a hurry to cool down those hot washers. > > -- > Chip Old 1948 M.G. TC TC6710 XPAG7430 NEMGTR #2271 > Cub Hill, Maryland > fold@bcpl.net > > > > Yahoo! Groups Links > > > > > > >

Gene Gillam · Post by **Gene Gillam** » Sat Feb 19, 2005 8:48 am

>Chilling them knocks the oxidation scab off the washer. Then you use

1500 grit on a piece of glass to make them smooth.

ROSS TAYLOR · Post by **ROSS TAYLOR** » Mon Feb 21, 2005 1:51 am

Please note Brass is what is called "hot short" and any heating will tend to harden it and it becomes very brittle. Regards Ross

>From: Chip Old fold@bcpl.net> >To: MG-TABC mg-tabc@yahoogroups.com> >Subject: Re: [mg-tabc] reuse of Crushable washers/annealing same >Date: Sat, 19 Feb 2005 08:00:25 -0500 (EST) > > >On Sat, 19 Feb 2005 03:32 -0000, Donald Wilkinson wrote to >joecurto@aol.com...: > > > digitaldon was scratchin' his head over that one also, but was VERY > > reluctant to 2nd guess Chip Old on this one. Anyway, his best > > recollection was that one hardened or annealed non-ferrous metals (Cu, > > Al, brass, etc.) opposite to ferrous as Joe sez above. > >As others have pointed out, when annealing copper it doesn't matter >whether you quench or not. The result is the same. I don't bother. >Maybe Joe is in more of a hurry to cool down those hot washers. > >-- >Chip Old 1948 M.G. TC TC6710 XPAG7430 NEMGTR #2271 >Cub Hill, Maryland >fold@bcpl.net > > > >Yahoo! Groups Links > > > > > > >

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