[TheForge] File Making

[Peter Hirst]

Could it be a compound like Kasenit?  The time still seems short . . .


----- Original Message ----- 
From: <wmullett at bright.net>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Wednesday, March 19, 2008 4:32 PM
Subject: Re: Re: [TheForge] File Making


> Thinking furthur ... and probably too much.  I don't think any carbon will 
> last long on the surface in the heat area before it is burned off.  I 
> think that's why Cussler put his flintlock pieces to be case hardened in a 
> crucible with lid.
> ============================================================
> From: James Binnion <jbin at well.com>
> Date: Wed Mar 19, 1:01 PM
> To: GHS at execpc.com,  Sponsored by ABANA <theforge at mailman.qth.net>
> Subject: Re: [TheForge] File Making
>
> It can take hours for the carbon to migrate even a few thousandths of
> an inch. I think Dave is correct about the decarburization prevention
> and the reason for applying the powder at heat is so that it will melt/
> stick to the surface.
>
>> I may be exposing my ignorance here, but my understanding was that
>> the length of the heat in case hardening affected the depth of the
>> carbon enrichment.
>> If the concern was hardening the sharpened edges on the file there
>> is not much to be had in terms of depth at that point.
>>
>> Might that be part of the answer?
>>
>> Mike Graf
>>
>
> James Binnion
> jbin at well.com
>
>
>
> _______________________________________________
> Manage membership or unsubscribe at:
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  blacksmithblacksmith at hotmail.com
> password:  anvil
> ___________
>
>
> ============================================================
>
>
> _______________________________________________
> Manage membership or unsubscribe at:
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  blacksmithblacksmith at hotmail.com
> password:  anvil
> ___________
>
>
>